10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2018

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _______ to ________.

Commission File Number:  001-37886

CAPSTAR FINANCIAL HOLDINGS, INC.

(Exact name of registrant as specified in its charter)

Tennessee	81-1527911
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification No.)
1201 Demonbreun Street, Suite 700 Nashville, Tennessee (Address of principal executive office)	37203 (zip code)

(615) 732-6400

(Registrant’s telephone number, including area code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒ No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.:

Large Accelerated Filer	☐	Accelerated Filer	☒
Non-Accelerated Filer	☐	Smaller Reporting Company	☐
		Emerging Growth Company	☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☒

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date.

	Shares outstanding as of July 30, 2018
Common Stock, par value $1.00 per share	11,850,622
Non-voting Common Stock, par value $1.00 per share	132,561

CAPSTAR FINANCIAL HOLDINGS, INC.

QUARTERLY REPORT ON FORM 10-Q

TABLE OF CONTENTS

Item		Page
PART I – FINANCIAL INFORMATION
Item 1.	Consolidated Financial Statements	5
	Consolidated Balance Sheets as of June 30, 2018 (Unaudited) and December 31, 2017	5
	Consolidated Statements of Income (Loss) (Unaudited) for the three and six months ended June 30, 2018 and 2017	6
	Consolidated Statements of Comprehensive Income (Loss) (Unaudited) for the three and six months ended June 30, 2018 and 2017	7
	Consolidated Statements of Changes in Shareholders’ Equity (Unaudited) for the six months ended June 30, 2018 and 2017	8
	Consolidated Statements of Cash Flows (Unaudited) for the six months ended June 30, 2018 and 2017	9
	Notes to Consolidated Financial Statements (Unaudited)	10
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	30
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	42
Item 4.	Controls and Procedures	42
PART II – OTHER INFORMATION		43
Item 1.	Legal Proceedings	43
Item 1A.	Risk Factors	43
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	43
Item 6.	Exhibits	44
SIGNATURES		45

2

TERMINOLOGY

The terms “we,” “our,” “us,” “the Company,” “CSTR” and “CapStar” that appear in this Quarterly Report on Form 10-Q (this “Report”) refer to CapStar Financial Holdings, Inc. and its wholly owned subsidiary, CapStar Bank.  The terms “CapStar Bank,” “the Bank” and “our Bank” that appear in this Report refer to CapStar Bank.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Report contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”).  These forward-looking statements reflect our current views with respect to, among other things, future events including, without limitation, the terms, timing and closing of the proposed mergers with Athens Bancshares Corporation and Athens Federal Community Bank (collectively, “Athens”) and our financial performance. These statements are often, but not always, made through the use of words or phrases such as “may,” “should,” “could,” “predict,” “potential,” “believe,” “will likely result,” “expect,” “continue,” “will,” “anticipate,” “seek,” “aspire,” “roadmap,” “achieve,” “estimate,” “intend,” “plan,” “project,” “projection,” “forecast,” “goal,” “target,” “would,” and “outlook,” or the negative version of those words or other comparable words of a future or forward-looking nature. These forward-looking statements are not historical facts, and are based on current expectations, estimates and projections about our industry, management’s beliefs and certain assumptions made by management, many of which, by their nature, are inherently uncertain and beyond our control. The inclusion of these forward-looking statements should not be regarded as a representation by us or any other person that such expectations, estimates and projections will be achieved. Accordingly, we caution you that any such forward-looking statements are not guarantees of future performance and are subject to risks, assumptions and uncertainties that are difficult to predict. Although we believe that the expectations reflected in these forward-looking statements are reasonable as of the date of this Report, actual results may prove to be materially different from the results expressed or implied by the forward-looking statements. There are or will be important factors that could cause our actual results to differ materially from those indicated in these forward-looking statements, including, but are not limited to, the following:

The terms, timing, and closing of the proposed mergers with Athens; the acceptance by customers of Athens of the Company’s products and services if the proposed mergers close; the ability of the Company and Athens to complete the mergers; the ability of the Company and Athens to satisfy the conditions to the completion of the merger transaction, including the approval of the merger transaction by Athens’ shareholders and the receipt of all regulatory approvals required for the merger transaction on the terms expected in the merger agreement; economic conditions (including interest rate environment, government economic and monetary policies, the strength of global financial markets and inflation and deflation) that impact the financial services industry as a whole and/or our business; the concentration of our business in the Nashville metropolitan statistical area (“MSA”) and the effect of changes in the economic, political and environmental conditions on this market; increased competition in the financial services industry, locally, regionally or nationally, which may adversely affect pricing and the other terms offered to our clients; our dependence on our management team and board of directors and changes in our management and board composition; our reputation in the community; our ability to execute our strategy and to achieve loan and deposit growth through organic growth and strategic acquisitions; credit risks related to the size of our borrowers and our ability to adequately identify, assess and limit our credit risk; our concentration of large loans to a small number of borrowers; the significant portion of our loan portfolio that originated during the past two years and therefore may less reliably predict future collectability than older loans; the adequacy of reserves (including our allowance for loan losses) and the appropriateness of our methodology for calculating such reserves; non-performing loans and leases; non-performing assets; charge-offs, non-accruals, troubled-debt restructurings, impairments and other credit issues; adverse trends in the healthcare service industry, which is an integral component of our market’s economy; our management of risks inherent in our commercial real estate loan portfolio, and the risk of a prolonged downturn in the real estate market, which could impair the value of our collateral and our ability to sell collateral upon any foreclosure; governmental legislation and regulation, including changes in the nature and timing of the adoption and effectiveness of new requirements under the Dodd-Frank Act of 2010, as amended, the Tax Cuts and Jobs Act, Basel guidelines, capital requirements, accounting regulation or standards and other applicable laws and regulations; the loss of large depositor relationships, which could force us to fund our business through more expensive and less stable sources; operational and liquidity risks associated with our business, including liquidity risks inherent in correspondent banking; volatility in interest rates and our overall management of interest rate risk, including managing the sensitivity of our interest-earning assets and interest-bearing liabilities to interest rates, and the impact to our earnings from a change in interest rates; the potential for our Bank’s regulatory lending limits and other factors related to our size to restrict our growth and prevent us from effectively implementing our business strategy; strategic acquisitions we may undertake to achieve our goals; the sufficiency of our capital, including sources of capital and the extent to which we may be required to raise additional capital to meet our goals; fluctuations to the fair value of our investment securities that are beyond our control; deterioration in the fiscal position of the U.S. government and downgrades in Treasury and federal agency securities; potential exposure to fraud, negligence, computer theft and cyber-crime; the adequacy of our risk management framework; our dependence on our information technology and telecommunications systems and the potential for any systems failures or interruptions; our dependence upon outside third parties for the processing and handling of our records and data; our ability to adapt to technological change; the financial soundness of other financial institutions; our exposure to environmental

3

liability risk associated with our lending activities; our engagement in derivative transactions; our involvement from time to time in legal proceedings and examinations and remedial actions by regulators; the susceptibility of our market to natural disasters and acts of God; and the effectiveness of our internal controls over financial reporting and our ability to remediate any future material weakness in our internal controls over financial reporting.

The foregoing factors should not be construed as exhaustive and should be read in conjunction with those factors that are detailed from time to time in the Company’s periodic and current reports filed with the Securities and Exchange Commission (the “SEC”), including those factors included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 under the heading “Item 1A. Risk Factors” and in the Company’s Quarterly Reports on Form 10-Q and Current Reports on Form 8-K.  If one or more events related to these or other risks or uncertainties materialize, or if our underlying assumptions prove to be incorrect, actual results may differ materially from our forward-looking statements. Accordingly, you should not place undue reliance on any such forward-looking statements. Any forward-looking statement speaks only as of the date of this Report, and we do not undertake any obligation to publicly update or review any forward-looking statement, whether as a result of new information, future developments or otherwise, except as required by law. New risks and uncertainties may emerge from time to time, and it is not possible for us to predict their occurrence or how they will affect us.

4

PART I. FINANCIAL INFORMATION

Item 1. Consolidated Financial Statements

CAPSTAR FINANCIAL HOLDINGS, INC. & SUBSIDIARY

Consolidated Balance Sheets

(Dollars in thousands, except share data)

	June 30, 2018
	(unaudited)			December 31, 2017
Assets
Cash and due from banks	$	14,185		$	9,506
Interest-bearing deposits in financial institutions		32,965			68,572
Federal funds sold		11,072			4,719
Total cash and cash equivalents		58,222			82,797
Securities available-for-sale, at fair value		183,364			192,621
Securities held-to-maturity, fair value of $3,798, and $3,848 at    June 30, 2018 and December 31, 2017, respectively		3,746			3,759
Loans held for sale		65,320			74,093
Loans		1,046,525			947,537
Less allowance for loan losses		(14,705	)		(13,721	)
Loans, net		1,031,820			933,816
Premises and equipment, net		5,831			5,884
Restricted equity securities		8,809			8,806
Accrued interest receivable		4,347			4,084
Goodwill		6,219			6,219
Core deposit intangible		3			23
Other assets		33,500			32,327
Total assets	$	1,401,181		$	1,344,429
Liabilities and Shareholders’ Equity
Deposits:
Non-interest-bearing	$	223,579		$	301,742
Interest-bearing		291,765			274,681
Savings and money market accounts		422,425			367,246
Time		207,244			176,197
Total deposits		1,145,013			1,119,866
Federal Home Loan Bank advances		95,000			70,000
Other liabilities		8,022			7,617
Total liabilities		1,248,035			1,197,483
Shareholders’ equity:
Series A convertible preferred stock, $1 par value; 5,000,000 shares authorized;    878,049 shares issued and outstanding at June 30, 2018 and    December 31, 2017		878			878
Common stock, voting, $1 par value; 20,000,000 shares authorized; 11,798,570 and    11,449,465 shares issued and outstanding at June 30, 2018 and December 31,    2017, respectively		11,799			11,450
Common stock, nonvoting, $1 par value; 5,000,000 shares authorized; 132,561    shares issued and outstanding at June 30, 2018 and December 31, 2017		133			133
Additional paid-in capital		120,555			118,120
Retained earnings		25,086			18,892
Accumulated other comprehensive loss, net of income tax		(5,305	)		(2,527	)
Total shareholders’ equity		153,146			146,946
Total liabilities and shareholders’ equity	$	1,401,181		$	1,344,429

See accompanying notes to consolidated financial statements (unaudited).

5

CAPSTAR FINANCIAL HOLDINGS, INC. & SUBSIDIARY

Consolidated Statements of Income (Loss) (Unaudited)

(Dollars in thousands, except share data)

	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2018		2017			2018		2017
Interest income:
Loans, including fees	$	13,796	$	11,373		$	26,030	$	21,840
Securities:
Taxable		939		983			1,815		1,987
Tax-exempt		261		317			546		642
Federal funds sold		19		16			39		18
Restricted equity securities		128		86			257		163
Interest-bearing deposits in financial institutions		211		115			411		219
Total interest income		15,354		12,890			29,098		24,869
Interest expense:
Interest-bearing deposits		892		586			1,646		1,204
Savings and money market accounts		1,413		773			2,418		1,587
Time deposits		834		574			1,483		1,046
Federal funds purchased		1		7			1		11
Federal Home Loan Bank advances		627		379			1,117		519
Total interest expense		3,767		2,319			6,665		4,367
Net interest income		11,587		10,571			22,433		20,502
Provision for loan losses		169		9,690			846		13,094
Net interest income after provision for loan losses		11,418		881			21,587		7,408
Noninterest income:
Treasury management and other deposit service charges		427		342			829		670
Loan commitment fees		185		187			572		423
Net gain on sale of securities		3		40			3		34
Tri-Net fees		325		297			853		382
Mortgage banking income		1,383		1,370			2,695		2,587
Other noninterest income		442		430			902		703
Total noninterest income		2,765		2,666			5,854		4,799
Noninterest expense:
Salaries and employee benefits		6,340		4,784			12,598		9,870
Data processing and software		810		711			1,608		1,331
Professional fees		344		350			819		714
Occupancy		535		539			1,056		987
Equipment		602		544			1,141		1,040
Regulatory fees		233		301			436		608
Merger related expenses		335		—			335		—
Other operating		806		988			1,593		2,042
Total noninterest expense		10,005		8,217			19,586		16,592
Income (loss) before income taxes		4,178		(4,670	)		7,855		(4,385	)
Income tax expense (benefit)		665		(1,328	)		1,148		(1,375	)
Net income (loss)	$	3,513	$	(3,342	)	$	6,707	$	(3,010	)
Per share information:
Basic net income (loss) per share of common stock	$	0.30	$	(0.30	)	$	0.57	$	(0.27	)
Diluted net income (loss) per share of common stock	$	0.27	$	(0.26	)	$	0.52	$	(0.24	)
Weighted average shares outstanding:
Basic		11,845,822		11,226,216			11,755,535		11,218,624
Diluted		13,067,223		12,740,104			13,021,744		12,761,989

See accompanying notes to consolidated financial statements (unaudited).

6

CAPSTAR FINANCIAL HOLDINGS, INC. & SUBSIDIARY

Consolidated Statements of Comprehensive Income (Loss) (Unaudited)

(Dollars in thousands)

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2018			2017			2018			2017
Net income (loss)	$	3,513		$	(3,342	)	$	6,707		$	(3,010	)
Other comprehensive income (loss):
Unrealized gains (losses) on securities available-for-sale:
Unrealized holding gains (losses) arising during the period		(573	)		1,333			(4,927	)		1,908
Reclassification adjustment for (gains) losses included in    net income		(3	)		(40	)		(3	)		(34	)
Tax effect		151			(495	)		1,289			(717	)
Net of tax		(425	)		798			(3,641	)		1,157
Unrealized losses on securities transferred to held-to-maturity:
Reclassification adjustment for losses included in    net income		—			42			14			83
Tax effect		—			(16	)		(4	)		(32	)
Net of tax		—			26			10			51
Unrealized gains (losses) on cash flow hedges:
Unrealized holding gains (losses) arising during the period		144			(211	)		567			(213	)
Reclassification adjustment for (gains) losses included in    net income		224			158			475			313
Tax effect		(54	)		81			(189	)		82
Net of tax		314			28			853			182
Other comprehensive income (loss)		(111	)		852			(2,778	)		1,390
Comprehensive income (loss)	$	3,402		$	(2,490	)	$	3,929		$	(1,620	)

See accompanying notes to consolidated financial statements (unaudited).

7

CAPSTAR FINANCIAL HOLDINGS, INC. & SUBSIDIARY

Consolidated Statements of Changes in Shareholders’ Equity (Unaudited)

(Dollars in thousands, except share data)

	Preferred		Common Stock, voting				Common Stock, nonvoting				Additional paid-in			Retained			Accumulated other comprehensive			Total shareholders’
	stock		Shares		Amount		Shares		Amount		capital			earnings			loss			equity
Balance December 31, 2016	$	878		11,204,515	$	11,205		—	$	—	$	116,143		$	17,132		$	(6,151	)	$	139,207
Issuance of restricted common    stock, net of forfeitures and    withholdings to satisfy    employee tax obligations		—		4,244		4		—		—		(215	)		—			—			(211	)
Stock-based compensation    expense		—		—		—		—		—		484			—			—			484
Excess tax benefit from stock    compensation		—		15,117		15		—		—		65			—			—			80
Exercise of common stock    warrants		—		11,379		11		—		—		79			—			—			90
Net income		—		—		—		—		—		—			(3,010	)		—			(3,010	)
Other comprehensive income		—		—		—		—		—		—			—			1,390			1,390
Balance June 30, 2017	$	878		11,235,255	$	11,235		—	$	—	$	116,556		$	14,122		$	(4,761	)	$	138,030
Balance December 31, 2017	$	878		11,449,465	$	11,450		132,561	$	133	$	118,120		$	18,892		$	(2,527	)	$	146,946
Issuance of restricted common    stock, net of forfeitures and    withholdings to satisfy    employee tax obligations		—		30,148		30		—		—		(383	)		—			—			(353	)
Stock-based compensation    expense		—		—		—		—		—		630			—			—			630
Exercise of employee    common stock options		—		168,372		168		—		—		1,029			—			—			1,197
Exercise of common stock    warrants		—		150,585		151		—		—		1,159			—			—			1,310
Common and preferred dividends    declared		—		—		—		—		—		—			(513	)		—			(513	)
Net income (loss)		—		—		—		—		—		—			6,707			—			6,707
Other comprehensive income (loss)		—		—		—		—		—		—			—			(2,778	)		(2,778	)
Balance June 30, 2018	$	878		11,798,570	$	11,799		132,561	$	133	$	120,555		$	25,086		$	(5,305	)	$	153,146

See accompanying notes to consolidated financial statements (unaudited).

8

CAPSTAR FINANCIAL HOLDINGS, INC. & SUBSIDIARY

Consolidated Statements of Cash Flows (Unaudited)

(Dollars in thousands)

	Six Months Ended
	June 30,
	2018			2017
Cash flows from operating activities:
Net income (loss)	$	6,707		$	(3,010	)
Adjustments to reconcile net income (loss) to net cash provided by     (used in) operating activities:
Provision for loan losses		846			13,094
Accretion of discounts on acquired loans and deferred fees		(653	)		(274	)
Depreciation and amortization		205			232
Net amortization of premiums on investment securities		541			663
Net gain on sale of securities		(3	)		(34	)
Mortgage banking income		(2,695	)		(2,587	)
Tri-Net fees		(853	)		(382	)
Net gain on sale of loans		—			(66	)
Net loss on disposal of premises and equipment		—			137
Stock-based compensation		630			484
Deferred income tax expense		124			402
Origination of loans held for sale		(261,924	)		(267,954	)
Proceeds from loans held for sale		274,245			239,527
Net increase in accrued interest receivable and other assets		(464	)		(3,107	)
Net increase (decrease) in accrued interest payable and other liabilities		934			(3,108	)
Net cash provided by (used in) operating activities		17,640			(25,983	)
Cash flows from investing activities:
Activities in securities available-for-sale:
Purchases		(11,708	)		(11,754	)
Sales		5,778			29,968
Maturities, prepayments and calls		9,746			9,762
Activities in securities held-to-maturity:
Maturities, prepayments and calls		—			451
Purchase of restricted equity securities		(3	)		(2,260	)
Net increase in loans		(98,197	)		(73,366	)
Purchase of premises and equipment		(132	)		(1,060	)
Proceeds from the sale of premises and equipment		—			3
Net cash used in investing activities		(94,516	)		(48,256	)
Cash flows from financing activities:
Net increase (decrease) in deposits		25,147			(7,738	)
Proceeds from Federal Home Loan Bank advances		80,000			60,000
Payments on Federal Home Loan Bank advances		(55,000	)		(10,000	)
Exercise of common stock options and warrants, net of repurchase of restricted shares		2,154			(41	)
Net cash provided by financing activities		52,301			42,221
Net decrease in cash and cash equivalents		(24,575	)		(32,018	)
Cash and cash equivalents at beginning of period		82,797			80,111
Cash and cash equivalents at end of period	$	58,222		$	48,093
Supplemental disclosures of cash paid:
Interest paid	$	6,452		$	4,293
Income taxes		176			2,813
Supplemental disclosures of noncash transactions:
Loans charged off to the allowance for loan losses	$	251		$	12,369

See accompanying notes to consolidated financial statements (unaudited).

9

CAPSTAR FINANCIAL HOLDINGS, INC. AND SUBSIDIARY

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

NOTE 1 – SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying unaudited consolidated financial statements as of and for the period ended June 30, 2018 include CapStar Financial Holdings, Inc. and its wholly owned subsidiary, CapStar Bank (the “Bank”, together referred to as the “Company”). Significant intercompany transactions and accounts are eliminated in consolidation.

The accompanying unaudited consolidated financial statements have been prepared in accordance with instructions to Form 10-Q and do not include all information and footnotes required by U.S. generally accepted accounting principles (“U.S. GAAP”) for complete financial statements. All adjustments consisting of normally recurring accruals that, in the opinion of management, are necessary for a fair presentation of the financial position and results of operations for the periods presented have been included.  These unaudited consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements and related notes appearing in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses, determination of impairment of intangible assets, including goodwill, the valuation of our investment portfolio, deferred tax assets and estimated liabilities.  There have been no significant changes to the Company’s critical accounting policies as disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

Subsequent Events

Accounting Standards Codification (“ASC”) 855, Subsequent Events, establishes general standards of accounting for and disclosure of events that occur after the balance sheet date but before financial statements are issued. The Company evaluated all events or transactions that occurred after June 30, 2018 through the date of the issued financial statements.

NOTE 2 – SECURITIES

The amortized cost and fair value of securities available-for-sale and held-to-maturity at June 30, 2018 and December 31, 2017 are summarized as follows (dollars in thousands):

	June 30, 2018									December 31, 2017
	Amortized Cost		Gross unrealized gains		Gross unrealized (losses)			Estimated fair value		Amortized Cost		Gross unrealized gains		Gross unrealized (losses)			Estimated fair value
Securities available-for-sale:
U. S. government agency securities	$	11,250	$	—	$	(488	)	$	10,762	$	11,433	$	12	$	(168	)	$	11,277
State and municipal securities		45,447		298		(1,413	)		44,332		51,790		1,430		(222	)		52,998
Mortgage-backed securities		106,495		—		(4,058	)		102,437		108,236		40		(1,714	)		106,562
Asset-backed securities		15,968		21		(23	)		15,966		16,575		—		(198	)		16,377
Other debt securities		9,873		61		(67	)		9,867		5,326		81		—			5,407
Total	$	189,033	$	380	$	(6,049	)	$	183,364	$	193,360	$	1,563	$	(2,302	)	$	192,621
Securities held-to-maturity:
State and municipal securities	$	3,746	$	55	$	(3	)	$	3,798	$	3,759	$	89	$	—		$	3,848
Total	$	3,746	$	55	$	(3	)	$	3,798	$	3,759	$	89	$	—		$	3,848

10

Security fair values are established by an independent pricing service as of the dates indicated. The difference between amortized cost and fair value reflects current interest rates and represents the potential gain (loss) had the portfolio been liquidated on those dates. Security gains (losses) are realized only in the event of dispositions prior to maturity or other-than-temporary impairment. Securities with unrealized losses as of June 30, 2018 and December 31, 2017, and the length of time they were in continuous loss positions as of such dates are as follows (dollars in thousands):

	Less than 12 months					12 months or more					Total
June 30, 2018	Estimated fair value		Gross unrealized losses			Estimated fair value		Gross unrealized losses			Estimated fair value		Gross unrealized losses
U. S. government agency securities	$	7,110	$	(240	)	$	3,652	$	(248	)	$	10,762	$	(488	)
State and municipal securities		27,726		(1,074	)		3,970		(342	)		31,696		(1,416	)
Mortgage-backed securities		36,012		(1,034	)		66,425		(3,024	)		102,437		(4,058	)
Asset-backed securities		—		—			7,536		(23	)		7,536		(23	)
Other debt securities		5,505		(67	)		—		—			5,505		(67	)
Total temporarily impaired securities	$	76,353	$	(2,415	)	$	81,583	$	(3,637	)	$	157,936	$	(6,052	)
December 31, 2017
U. S. government agency securities	$	7,375	$	(90	)	$	1,912	$	(78	)	$	9,287	$	(168	)
State and municipal securities		7,490		(106	)		5,798		(116	)		13,288		(222	)
Mortgage-backed securities		29,832		(322	)		67,813		(1,392	)		97,645		(1,714	)
Asset-backed securities		—		—			16,377		(198	)		16,377		(198	)
Other debt securities		—		—			—		—			—		—
Total temporarily impaired securities	$	44,697	$	(518	)	$	91,900	$	(1,784	)	$	136,597	$	(2,302	)

As noted in the table above, as of June 30, 2018, the Company had unrealized losses of $6.1 million in its investment securities portfolio. The unrealized losses associated with these investment securities are driven by changes in interest rates and are recorded as a component of equity. These investment securities will continue to be monitored as a part of our ongoing impairment analysis. Management evaluates the financial performance of the issuers on a quarterly basis to determine if it is probable that the issuers can make all contractual principal and interest payments. If a shortfall in future cash flows is identified, a credit loss will be deemed to have occurred and will be recognized as a charge to earnings and a new cost basis for the security will be established.

Because the Company currently does not intend to sell any investment securities that have an unrealized loss at June 30, 2018, and it is not more-likely-than-not that we will be required to sell these investment securities before recovery of their amortized cost bases, which may be at maturity, we do not consider these securities to be other-than-temporarily impaired at June 30, 2018.

Securities with a market value of $118.4 million at June 30, 2018 were pledged to collateralize public deposits, derivative positions and Federal Home Loan Bank advances.

Results from sales of debt and equity securities were as follows (dollars in thousands):

	Six Months Ended			Six Months Ended
	June 30, 2018			June 30, 2017
Proceeds	$	5,778		$	29,968
Gross gains		107			110
Gross losses		(104	)		(76	)

11

The amortized cost and fair value of securities at June 30, 2018, by contractual maturity, are shown below (dollars in thousands). Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately.

	Available-for-sale				Held-to-maturity
	Amortized cost		Estimated fair value		Amortized cost		Estimated fair value
Due in less than one year	$	1,849	$	1,846	$	—	$	—
Due one to five years		20,577		20,673		3,746		3,798
Due five to ten years		28,854		28,023		—		—
Due beyond ten years		15,290		14,419		—		—
Mortgage-backed securities		106,495		102,437		—		—
Asset-backed securities		15,968		15,966		—		—
Total	$	189,033	$	183,364	$	3,746	$	3,798

NOTE 3 – LOANS AND ALLLOWANCE FOR LOAN LOSSES

A summary of the loan portfolio as of June 30, 2018 and December 31, 2017 follows (dollars in thousands):

	June 30, 2018			December 31, 2017
Commercial real estate	$	408,244		$	350,622
Consumer real estate		109,915			102,581
Construction and land development		96,580			82,586
Commercial and industrial		386,065			373,248
Consumer		9,671			6,862
Other		36,429			31,983
Total		1,046,904			947,882
Less net unearned income		(379	)		(345	)
Total loans		1,046,525			947,537
Allowance for loan losses		(14,705	)		(13,721	)
Total loans, net	$	1,031,820		$	933,816

The adequacy of the allowance for loan losses (ALL) is assessed at the end of each quarter. The ALL includes a specific component related to loans that are individually evaluated for impairment and a general component related to loans that are segregated into homogenous pools and collectively evaluated for impairment.  The ALL factors applied to these pools are an estimate of probable incurred losses based on management’s evaluation of historical net losses from loans with similar characteristics, which are adjusted by management to reflect current events, trends, and conditions. The adjustments include consideration of the following:  changes in lending policies and procedures, economic conditions, nature and volume of the portfolio, experience of lending management, volume and severity of past due loans, quality of the loan review system, value of underlying collateral for collateral dependent loans, concentrations, and other external factors.

12

The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. The Company analyzes all commercial loans, and consumer relationships with an outstanding balance greater than $500,000, individually and assigns each loan a risk rating. This analysis is performed on a continual basis by the relationship managers and credit department personnel. On at least an annual basis an independent party performs a formal credit risk review of a sample of the loan portfolio. Among other things, this review assesses the appropriateness of the loan’s risk rating. The Company uses the following definitions for risk ratings:

Special Mention – A special mention asset possesses deficiencies or potential weaknesses deserving of management’s attention. If uncorrected, such weaknesses or deficiencies may expose the Company to an increased risk of loss in the future.

Substandard – A substandard asset is inadequately protected by the current sound net worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if deficiencies are not corrected. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual assets classified substandard.

Doubtful – A doubtful asset has all weaknesses inherent in one classified substandard, with the added characteristic that weaknesses make collection or liquidation in full, on the basis of existing facts, conditions, and values, highly questionable and improbable. The probability of loss is extremely high, but certain important and reasonable specific pending factors which may work to the advantage and strengthening of the asset exist, therefore, its classification as an estimated loss is deferred until a more exact status may be determined. Pending factors include proposed merger, acquisition or liquidation procedures, capital injection, perfecting liens on additional collateral, and refinancing plans.

Loans not falling into the criteria above are considered to be pass-rated loans. The Company utilizes six loan grades within the pass risk rating.

The following tables present the loan balances by category as well as risk rating (dollars in thousands):

	Non-impaired Loans
June 30, 2018	Pass/Watch		Special Mention		Substandard		Total Non-impaired		TotalImpaired Loans		Total
Commercial real estate	$	405,003	$	—	$	2,068	$	407,071	$	1,173	$	408,244
Consumer real estate		109,689		—		226		109,915		—		109,915
Construction and land development		96,580		—		—		96,580		—		96,580
Commercial and industrial		371,917		2,395		6,334		380,646		5,419		386,065
Consumer		9,671		—		—		9,671		—		9,671
Other		36,429		—		—		36,429		—		36,429
Total	$	1,029,289	$	2,395	$	8,628	$	1,040,312	$	6,592	$	1,046,904
December 31, 2017
Commercial real estate	$	349,415	$	—	$	—	$	349,415	$	1,207	$	350,622
Consumer real estate		102,571		—		10		102,581		—		102,581
Construction and land development		82,586		—		—		82,586		—		82,586
Commercial and industrial		349,494		11,193		11,073		371,760		1,488		373,248
Consumer		6,849		—		13		6,862		—		6,862
Other		31,983		—		—		31,983		—		31,983
Total	$	922,898	$	11,193	$	11,096	$	945,187	$	2,695	$	947,882

None of the Company’s loans had a risk rating of “Doubtful” as of June 30, 2018 or December 31, 2017.

13

The following tables detail the changes in the ALL for the three and six months ended June 30, 2018 and 2017 (dollars in thousands):

	Commercial real estate		Consumer real estate		Construction and land development			Commercial and industrial			Consumer			Other			Total
Three Months Ended June 30, 2018
Balance, beginning of period	$	3,512	$	1,036	$	1,742		$	7,798		$	122		$	353		$	14,563
Charged-off loans		—		—		—			(79	)		(12	)		—			(91	)
Recoveries		6		1		—			53			4			—			64
Provision for loan losses		33		20		22			7			6			81			169
Balance, end of period	$	3,551	$	1,057	$	1,764		$	7,779		$	120		$	434		$	14,705
Three Months Ended June 30, 2017
Balance, beginning of period	$	3,257	$	1,048	$	1,090		$	8,013		$	60		$	529		$	13,997
Charged-off loans				—		—			(11,244	)		—			—			(11,244	)
Recoveries		—		1		—			—			10			—			11
Provision for loan losses		276		32		(179	)		9,626			(13	)		(52	)		9,690
Balance, end of period	$	3,533	$	1,081	$	911		$	6,395		$	57		$	477		$	12,454

	Commercial real estate		Consumer real estate			Construction and land development			Commercial and industrial			Consumer			Other			Total
Six Months Ended June 30, 2018
Balance, beginning of period	$	3,324	$	1,063		$	1,628		$	7,209		$	91		$	406		$	13,721
Charged-off loans		—		—			—			(226	)		(25	)		—			(251	)
Recoveries		10		2			—			326			51			—			389
Provision for loan losses		217		(8	)		136			470			3			28			846
Balance, end of period	$	3,551	$	1,057		$	1,764		$	7,779		$	120		$	434		$	14,705
Six Months Ended June 30, 2017
Balance, beginning of period	$	2,655	$	1,013		$	1,574		$	5,618		$	76		$	698		$	11,634
Charged-off loans		—		—			—			(12,369	)		—			—			(12,369	)
Recoveries		—		1			—			3			91			—			95
Provision for loan losses		878		67			(663	)		13,143			(110	)		(221	)		13,094
Balance, end of period	$	3,533	$	1,081		$	911		$	6,395		$	57		$	477		$	12,454

14

A breakdown of the ALL and the loan portfolio by loan category at June 30, 2018 and December 31, 2017 follows (dollars in thousands):

	Commercial real estate		Consumer real estate		Construction and land development		Commercial and industrial		Consumer		Other		Total
June 30, 2018
Allowance for Loan Losses:
Collectively evaluated for impairment	$	3,551	$	1,057	$	1,764	$	6,104	$	120	$	434	$	13,030
Individually evaluated for impairment		—		—		—		1,675		—		—		1,675
Balances, end of period	$	3,551	$	1,057	$	1,764	$	7,779	$	120	$	434	$	14,705
Loans:
Collectively evaluated for impairment	$	407,071	$	109,915	$	96,580	$	380,646	$	9,671	$	36,429	$	1,040,312
Individually evaluated for impairment		1,173		—		—		5,419		—		—		6,592
Balances, end of period	$	408,244	$	109,915	$	96,580	$	386,065	$	9,671	$	36,429	$	1,046,904
December 31, 2017
Allowance for Loan Losses:
Collectively evaluated for impairment	$	3,324	$	1,063	$	1,628	$	7,109	$	91	$	406	$	13,621
Individually evaluated for impairment		—		—		—		100		—		—		100
Balances, end of period	$	3,324	$	1,063	$	1,628	$	7,209	$	91	$	406	$	13,721
Loans:
Collectively evaluated for impairment	$	349,415	$	102,581	$	82,586	$	371,760	$	6,862	$	31,983	$	945,187
Individually evaluated for impairment		1,207		—		—		1,488		—		—		2,695
Balances, end of period	$	350,622	$	102,581	$	82,586	$	373,248	$	6,862	$	31,983	$	947,882

The following table presents the allocation of the ALL for each respective loan category with the corresponding percentage of the ALL in each category to total loans, net of deferred fees as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	June 30, 2018					December 31, 2017
	Amount		Percent of total loans, net of deferred fees			Amount		Percent of total loans, net of deferred fees
Commercial real estate	$	3,551		0.34	%	$	3,324		0.35	%
Consumer real estate		1,057		0.10			1,063		0.11
Construction and land development		1,764		0.17			1,628		0.17
Commercial and industrial		7,779		0.75			7,209		0.76
Consumer		120		0.01			91		0.01
Other		434		0.04			406		0.04
Total allowance for loan losses	$	14,705		1.41	%	$	13,721		1.45	%

15

The following table presents the Company’s impaired loans that were evaluated for specific loss allowance as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	June 30, 2018						December 31, 2017
	Recorded investment		Unpaid principal balance		Related allowance		Recorded investment		Unpaid principal balance		Related allowance
With no related allowance recorded:
Commercial real estate	$	1,173	$	1,633	$	—	$	1,207	$	1,645	$	—
Consumer real estate		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—
Commercial and industrial		—		—		—		—		—		—
Consumer		—		—		—		—		—		—
Other		—		—		—		—		—		—
Subtotal		1,173		1,633		—		1,207		1,645		—
With an allowance recorded:
Commercial real estate		—		—		—		—		—		—
Consumer real estate		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—
Commercial and industrial		5,419		5,419		1,675		1,488		2,770		100
Consumer		—		—		—		—		—		—
Other		—		—		—		—		—		—
Subtotal		5,419		5,419		1,675		1,488		2,770		100
Total	$	6,592	$	7,052	$	1,675	$	2,695	$	4,415	$	100

The following table presents information related to the average recorded investment and interest income recognized on impaired loans for the three and six months ended June 30, 2018 and 2017 (dollars in thousands):

	Three Months Ended				Three Months Ended				Six Months Ended				Six Months Ended
	June 30, 2018				June 30, 2017				June 30, 2018				June 30, 2017
	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
With no related allowance recorded:
Commercial real estate	$	1,181	$	15	$	1,278	$	—	$	1,189	$	25	$	1,286	$	—
Consumer real estate		—		—		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—		—		—
Commercial and industrial		—		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—		—
Other		—		—		—		—		—		—		—		—
Subtotal		1,181		15		1,278		—		1,189		25		1,286		—
With an allowance recorded:
Commercial real estate		—		—		—		—		—		—		—		—
Consumer real estate		—		—		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—		—		—
Commercial and industrial		5,425		31		2,194		—		5,345		118		2,242		—
Consumer		—		—		—		—		—		—		—		—
Other		—		—		—		—		—		—		—		—
Subtotal		5,425		31		2,194		—		5,345		118		2,242		—
Total	$	6,606	$	46	$	3,472	$	—	$	6,534	$	143	$	3,528	$	—

Interest income recognized on a cash basis for impaired loans amounted to $15,000 and $25,000 for the three and six months ended June 30, 2018.  No interest income was recognized on a cash basis for impaired loans during the three or six months ended June 30, 2017.

16

The following table presents the aging of the recorded investment in past-due loans as of June 30, 2018 and December 31, 2017 by class of loans (dollars in thousands):

	30 - 59		60 - 89		Greater Than
	Days		Days		89 Days		Total		Loans Not
	Past Due		Past Due		Past Due		Past Due		Past Due		Total
June 30, 2018
Commercial real estate	$	472	$	—	$	—	$	472	$	407,772	$	408,244
Consumer real estate		27		—		216		243		109,672		109,915
Construction and land development		—		—		—		—		96,580		96,580
Commercial and industrial		—		30		—		30		386,035		386,065
Consumer		—		—		—		—		9,671		9,671
Other		—		—		—		—		36,429		36,429
Total	$	499	$	30	$	216	$	745	$	1,046,159	$	1,046,904
December 31, 2017
Commercial real estate	$	—	$	—	$	—	$	—	$	350,622	$	350,622
Consumer real estate		—		—		218		218		102,363		102,581
Construction and land development		—		—		—		—		82,586		82,586
Commercial and industrial		1,967		209		—		2,176		371,072		373,248
Consumer		—		—		13		13		6,849		6,862
Other		—		—		—		—		31,983		31,983
Total	$	1,967	$	209	$	231	$	2,407	$	945,475	$	947,882

The following table presents the recorded investment in non-accrual loans, past due loans over 90 days outstanding and accruing and troubled debt restructurings (“TDR”) by class of loans as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	Non-Accrual		Past Due Over 89 Days and Accruing		Troubled Debt Restructurings
June 30, 2018
Commercial real estate	$	—	$	—	$	1,173
Consumer real estate		—		216		—
Construction and land development		—		—		—
Commercial and industrial		5,419		—		—
Consumer		—		—		—
Other		—		—		—
Total	$	5,419	$	216	$	1,173
December 31, 2017
Commercial real estate	$	1,207	$	—	$	1,207
Consumer real estate		—		218		—
Construction and land development		—		—		—
Commercial and industrial		1,488		—		—
Consumer		—		13		—
Other		—		—		—
Total	$	2,695	$	231	$	1,207

As of June 30, 2018 and December 31, 2017, all loans classified as nonperforming were deemed to be impaired.

As of both June 30, 2018 and December 31, 2017, the Company had a recorded investment in TDR of $1.2 million. The Company had no specific allowance for those loans at June 30, 2018 or December 31, 2017 and there were no commitments to lend additional amounts.  Loans accounted for as TDR include modifications from original terms such as those due to bankruptcy proceedings, certain modifications of amortization periods or extended suspension of principal payments due to customer financial difficulties.  In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification.  This evaluation is performed under the Bank’s loan policy.  Loans accounted for as TDR are individually evaluated for impairment.

17

There were no TDR identified during the three or six months ended June 30, 2018 or 2017.There were no TDR for which there was a payment default within twelve months following the modification during the three or six months ended June 30, 2018 or 2017.

A loan is considered to be in payment default once it is 30 days contractually past due under the modified terms.

NOTE 4 – FEDERAL HOME LOAN BANK ADVANCES

The Company had outstanding borrowings totaling of $95.0 million and $70.0 million at June 30, 2018 and December 31, 2017, respectively, via various advances. These advances are non-callable; interest payments are due monthly, with principal due at maturity.

The following is a summary of the contractual maturities and average effective rates of outstanding advances (dollars in thousands):

	June 30, 2018					December 31, 2017
Year	Amount		Interest Rates			Amount		Interest Rates
2018	$	95,000		2.06	%	$	70,000		1.66	%
2019		—		—			—		—
2020		—		—			—		—
2021		—		—			—		—
2022		—		—			—		—
Thereafter		—		—			—		—
Total	$	95,000		2.06	%	$	70,000		1.66	%

Advances from the FHLB are collateralized by investment securities with a market value of $3.9 million, FHLB stock and certain commercial and residential real estate mortgage loans totaling $423.5 million under a blanket mortgage collateral agreement.  At June 30, 2018, the amount of available credit from the FHLB totaled $89.4 million.

NOTE 5 – ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The following were changes in accumulated other comprehensive income (loss) by component, net of tax, for the six months ended June 30, 2018 and 2017 (dollars in thousands):

				Unrealized Gains			Unrealized
	Gains and			and Losses			Losses on
	Losses on			on Available			Securities
	Cash Flow			for Sale			Transferred to
	Hedges			Securities			Held to Maturity			Total
Six Months Ended June 30, 2018
Beginning Balance	$	(3,679	)	$	1,162		$	(10	)	$	(2,527	)
Other comprehensive income (loss) before    reclassification, net of tax		1,288			(3,639	)		1			(2,350	)
Amounts reclassified from accumulated other    comprehensive income (loss), net of tax		(435	)		(2	)		9			(428	)
Net current period other comprehensive income (loss)		853			(3,641	)		10			(2,778	)
Ending Balance	$	(2,826	)	$	(2,479	)	$	—		$	(5,305	)
Six Months Ended June 30, 2017
Beginning Balance	$	(4,241	)	$	(698	)	$	(1,212	)	$	(6,151	)
Other comprehensive income (loss) before     reclassification, net of tax		495			1,178			—			1,673
Amounts reclassified from accumulated other    comprehensive income (loss), net of tax		(313	)		(21	)		51			(283	)
Net current period other comprehensive income (loss)		182			1,157			51			1,390
Ending Balance	$	(4,059	)	$	459		$	(1,161	)	$	(4,761	)

18

The following were significant amounts reclassified out of each component of accumulated other comprehensive income (loss) for the three andsix months ended June 30, 2018 and 2017 (dollars in thousands):

													Affected Line Item
Details about Accumulated Other	Three Months Ended June 30,						Six Months Ended June 30,						in the Statement Where
Comprehensive Income Components	2018			2017			2018			2017			Net Income is Presented
Unrealized losses on cash flow hedges	$	(111	)	$	(108	)	$	(218	)	$	(213	)	Interest expense - money market
		(113	)		(50	)		(257	)		(100	)	Interest expense - Federal Home Loan Bank advances
		16			—			40			—		Income tax benefit
	$	(208	)	$	(158	)	$	(435	)	$	(313	)	Net of tax
Unrealized gains (losses) on available-   for-sale securities	$	(3	)	$	(40	)	$	(3	)	$	(34	)	Net gain (loss) on sale of securities
		1			15			1			13		Income tax expense
	$	(2	)	$	(25	)	$	(2	)	$	(21	)	Net of tax
Unrealized losses on securities   transferred to held-to-maturity	$	—		$	42		$	14		$	83		Interest income - securities
		—			(16	)		(5	)		(32	)	Income tax benefit
	$	—		$	26		$	9		$	51		Net of tax

NOTE 6 – INCOME TAXES

The Company’s effective tax rate for the three and six months ended June 30, 2018 was 15.9% and 14.6% compared to (28.4)% and (31.4)% for the three and six months ended June 30, 2017.  In March 2016, the FASB issued guidance to simplify several aspects of the accounting for share-based payment award transactions, including income tax consequences. In addition to other changes, the guidance changes the accounting for excess tax benefits and tax deficiencies from generally being recognized in additional paid-in capital to recognition as income tax expense or benefit in the period they occur. The Company adopted the new guidance in the first quarter of 2017. As a result, the Company’s income tax expense was reduced by $277,000 and $640,000 for the three and six months ended June 30, 2018, respectively, and by $21,000 and $167,000 for the three and six months ended June 30, 2017, respectively.

On December 22, 2017, Public Law 115-97, informally referred to as the Tax Cuts and Jobs Act (the “Tax Reform Act”) was enacted into law. The Tax Reform Act provides for significant changes to the U.S. tax code that impact businesses. Effective January 1, 2018, the Tax Reform Act reduced the U.S. federal tax rate for corporations from 35% to 21% for U.S. taxable income.

The effective tax rate compared favorably to the statutory federal rate of 21% and Tennessee excise tax rate of 6.5% primarily due to investments in qualified municipal securities, company owned life insurance, state tax credits, net of the effect of certain non-deductible expenses and the recognition of excess tax benefits related to stock compensation.

NOTE 7 – COMMITMENTS AND CONTINGENCIES

In the normal course of business, the Company has outstanding commitments and contingent liabilities, such as commitments to extend credit and standby letters of credit, which are not included in the accompanying financial statements. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instruments for commitments to extend credit and standby letters of credit is represented by the contractual or notional amount of those instruments. The Company uses the same credit policies in making such commitments as it does for instruments that are included in the balance sheet.

The following table sets forth outstanding financial instruments whose contract amounts represent credit risk as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	Contract or notional amount
	June 30, 2018		December 31, 2017
Financial instruments whose contract amounts represent    credit risk:
Unused commitments to extend credit	$	575,932	$	584,494
Standby letters of credit		10,047		11,552
Total	$	585,979	$	596,046

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The Company is party to litigation and claims arising in the normal course of business. Management believes that the liabilities, if any, arising from such litigation and claims as of June 30, 2018, will not have a material impact on the financial statements of the Company.

NOTE 8 – DERIVATIVES

The Company utilizes interest rate swap agreements as part of its asset liability management strategy to help manage its interest rate risk position. The notional amount of the interest rate swaps does not represent amounts exchanged by the parties. The amount exchanged is determined by reference to the notional amount and the other terms of the individual interest rate swap agreements.

Interest Rate Swaps Designated as Cash Flow Hedges

Forward starting interest rate swaps with notional amounts totaling $20 million as of June 30, 2018 and December 31, 2017 were designated as cash flow hedges of certain liabilities and were determined to be fully effective during all periods presented. As such, no amount of ineffectiveness has been included in net income. Therefore, the aggregate fair value of the swaps is recorded in other assets (liabilities) with changes in fair value recorded in other comprehensive income (loss). The amount included in accumulated other comprehensive income (loss) would be reclassified to current earnings should the hedges no longer be considered effective. The Company expects the hedges to remain fully effective during the remaining terms of the swaps.

Summary information about the interest-rate swaps designated as cash flow hedges was as follows (dollars in thousands):

	June 30, 2018			December 31, 2017
Notional amounts	$	20,000		$	20,000
Weighted average pay rates		3.54	%		3.54	%
Weighted average receive rates	3 monthLIBOR			3 month LIBOR
Weighted average maturity	5.0 years			5.5 years
Fair value	$	(653	)	$	(1,375	)
Amount of unrealized loss recognized in accumulated    other comprehensive income, net of tax	$	(482	)	$	(1,016	)

Pursuant to its interest rate swap agreements, the Company pledged collateral to the counterparties in the form of investment securities with a market value of $2.2 million at June 30, 2018. There was no collateral posted from the counterparties to the Company as of June 30, 2018. It is possible that the Company may need to post additional collateral in the future or that the counterparties may be required to post collateral to the Company in the future.

Other Interest Rate Swaps

The Company also enters into swaps to facilitate customer transactions and meet their financing needs.  Upon entering into these transactions the Company enters into offsetting positions with large U.S. financial institutions in order to minimize risk to the Company. A summary of the Company’s customer related interest rate swaps was as follows (dollars in thousands):

	June 30, 2018					December 31, 2017
	Notional		Estimated			Notional		Estimated
	amount		fair value			amount		fair value
Interest rate swap agreements:
Pay fixed/receive variable swaps	$	39,197	$	314		$	41,863	$	55
Pay variable/receive fixed swaps		39,197		(314	)		41,863		(55	)
Total	$	78,394	$	—		$	83,726	$	—

NOTE 9 - STOCK OPTIONS AND RESTRICTED SHARES

During 2008, the board of directors of the Bank approved the CapStar Bank 2008 Stock Incentive Plan. Following the formation of CapStar Financial Holdings, Inc. in 2016, and in connection with the Share Exchange, the outstanding awards of restricted stock and stock options under the CapStar Bank 2008 Stock Incentive Plan were exchanged for similar awards of restricted stock and stock options issued by CapStar Financial Holdings, Inc. under the CapStar Financial Holdings, Inc. Stock Incentive Plan (the “Plan”), which the board of directors adopted in 2016. The Stock Incentive Plan provides for the grant of stock-based incentives, including stock options, restricted stock units, performance awards and restricted stock, to employees, directors and service providers that are

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subject to forfeiture until vesting conditions have been satisfied by the award recipient under the terms of the award.  The Plan is intended to help align the interests of employees and our shareholders and reward our employees for improved Company performance.  The Plan reserved 1,569,475 shares of stock for issuance of stock incentives. In April 2018 the board of directors reserved an additional 400,000 shares of stock for issuance of stock incentives.  Stock incentives include both restricted share and stock option grants.  Total shares issuable under the plan were 506,435 at June 30, 2018.

The Company has recognized stock-based compensation expense, within salaries and employee benefits for employees, and within other non-interest expense for directors, in the consolidated statements of income as follows (dollars in thousands):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2018			2017			2018			2017
Stock-based compensation expense before income taxes	$	325		$	248		$	630		$	484
Less: deferred tax benefit		(85	)		(95	)		(165	)		(185	)
Reduction of net income	$	240		$	153		$	465		$	299

Restricted Shares

Compensation expense is recognized over the vesting period of the awards based on the fair value of the stock at the issue date. The fair value of each restricted stock grant is based on valuations performed by independent consultants. The recipients have the right to vote and receive dividends but cannot sell, transfer, assign, pledge, hypothecate, or otherwise encumber the restricted stock until the shares have vested. Restricted shares fully vest on the third anniversary of the grant date.  A summary of the changes in the Company’s nonvested restricted shares for the six months ended June 30, 2018 follows:

				Weighted
				Average
	Restricted			Grant Date
Nonvested Shares	Shares			Fair Value
Nonvested at beginning of period		187,253		$	14.21
Granted		53,869			19.11
Vested		(81,657	)		12.27
Forfeited		(5,437	)		16.52
Nonvested at end of period		154,028		$	16.87

As of June 30, 2018, there was $2.0 million of unrecognized compensation cost related to nonvested shares granted under the Plan.  The cost is expected to be recognized over a weighted-average period of 2.1 years.  The total fair value of shares vested during the six months ended June 30, 2018 and 2017 was $1.6 million and $0.6 million.

Stock Options

Option awards are generally granted with an exercise price equal to the fair value of the Company’s common stock at the date of grant.  Option awards generally have a four year vesting period and a ten year contractual term.

The fair value of each option grant is estimated on the date of grant using the Black Scholes option pricing model. There were no options granted in 2018 or 2017.

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A summary of the activity in stock options for the six months ended June 30, 2018 follows:

						Weighted
				Weighted		Average
				Average		Remaining
				Exercise		Contractual
	Shares			Price		Term (years)
Outstanding at beginning of period		804,800		$	10.59
Granted		—			—
Exercised		(218,642	)		10.00
Forfeited or expired		—			—
Outstanding at end of period		586,158		$	10.82		2.5
Fully vested and expected to vest		583,633		$	10.81		2.3
Exercisable at end of period		558,658		$	10.75		2.3

Information related to stock options during each year follows:

	2018		2017
Intrinsic value of options exercised	$	2,081,344	$	240,570
Cash received from option exercises		2,186,420		257,500
Tax benefit realized from option exercises		544,063		92,114
Weighted average fair value of options granted		—		—

As of June 30, 2018, there was $0.1 million of unrecognized compensation cost related to nonvested stock options granted under the Plan.  The cost is expected to be recognized over a weighted-average period of 1.2 years.

NOTE 10 – REGULATORY CAPITAL REQUIREMENTS

The Company and the Bank are subject to regulatory capital requirements administered by the Federal Reserve and the Bank is also subject to the regulatory capital requirements of the Tennessee Department of Financial Institutions. Failure to meet capital requirements can initiate certain mandatory – and possibly additional discretionary – actions by regulators that could, in that event, have a material adverse effect on the institutions’ financial statements. The relevant regulations require the Company and the Bank to meet specific capital adequacy guidelines that involve quantitative measures of their assets, liabilities and certain off-balance-sheet items as calculated under regulatory accounting principles. The capital classifications of the Company and the Bank are also subject to qualitative judgments by their regulators about components, risk weightings, and other factors. Those qualitative judgments could also affect the capital status of the Company and the Bank and the amount of dividends the Company and the Bank may distribute. The final rules implementing the Basel Committee on Banking Supervision’s capital guidelines for U.S. banks (Basel III rules) became effective for the Bank on January 1, 2015 with full compliance with all of the requirements being phased in over a multi-year schedule, and fully phased in by January 1, 2019. The net unrealized gain or loss on available for sale securities is not included in computing regulatory capital. Management believes as of June 30, 2018, the Company and the Bank met all regulatory capital adequacy requirements to which they are subject.

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The Company’s and the Bank’s capital amounts and ratios as of June 30, 2018 and December 31, 2017 are presented in the following table (dollars in thousands).

	Actual					Minimum capital requirement (1)					Minimum to be well-capitalized (2)
	Amount		Ratio			Amount		Ratio			Amount		Ratio
At June 30, 2018:
Total capital to risk-weighted assets:
CapStar Financial Holdings, Inc.	$	166,409		12.45	%	$	106,945		8.00	%	N/A		N/A
CapStar Bank		150,773		11.28			106,907		8.00		$	133,634		10.00
Tier I capital to risk-weighted assets:
CapStar Financial Holdings, Inc.		151,525		11.33			80,209		6.00		N/A		N/A
CapStar Bank		135,889		10.17			80,181		6.00			106,907		8.00
Common equity Tier 1 capital to risk weighted    assets:
CapStar Financial Holdings, Inc.		142,525		10.66			60,157		4.50		N/A		N/A
CapStar Bank		119,389		8.93			60,135		4.50			86,862		6.50
Tier I capital to average assets:
CapStar Financial Holdings, Inc.		151,525		10.87			55,741		4.00		N/A		N/A
CapStar Bank		135,889		9.75			55,736		4.00			69,670		5.00
At December 31, 2017:
Total capital to risk-weighted assets:
CapStar Financial Holdings, Inc.	$	156,434		12.52	%	$	99,932		8.00	%	N/A		N/A
CapStar Bank		142,396		11.40			99,928		8.00		$	124,909		10.00
Tier I capital to risk-weighted assets:
CapStar Financial Holdings, Inc.		142,534		11.41			74,949		6.00		N/A		N/A
CapStar Bank		128,496		10.29			74,946		6.00			99,928		8.00
Common equity Tier 1 capital to risk weighted    assets:
CapStar Financial Holdings, Inc.		133,703		10.70			56,212		4.50		N/A		N/A
CapStar Bank		112,165		8.98			56,209		4.50			81,191		6.50
Tier I capital to average assets:
CapStar Financial Holdings, Inc.		142,534		10.77			53,218		4.00		N/A		N/A
CapStar Bank		128,496		9.71			53,215		4.00			66,519		5.00

(1) For the calendar year 2018, the Company must maintain a capital conservation buffer of Tier 1 common equity capital in excess of minimum risk-based capital ratios by at least 1.875% to avoid limits on capital distributions and certain discretionary bonus payments to executive officers and similar employees.

(2) For the Company to be well-capitalized, the Bank must be well-capitalized and the Company must not be subject to any written agreement, order, capital directive, or prompt corrective action directive issued by the Federal Reserve to meet and maintain a specific capital level for any capital measure.

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NOTE 11 – EARNINGS PER SHARE

The following is a summary of the basic and diluted earnings per share calculation for the three and six months ended June 30, 2018 and 2017 (dollars in thousands, except share data):

	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2018		2017			2018		2017
Basic net income (loss) per share calculation:
Numerator – Net income (loss)	$	3,513	$	(3,342	)	$	6,707	$	(3,010	)
Denominator – Average common shares outstanding		11,845,822		11,226,216			11,755,535		11,218,624
Basic net income (loss) per share	$	0.30	$	(0.30	)	$	0.57	$	(0.27	)
Diluted net income (loss) per share calculation:
Numerator – Net income (loss)	$	3,513	$	(3,342	)	$	6,707	$	(3,010	)
Denominator – Average common shares outstanding		11,845,822		11,226,216			11,755,535		11,218,624
Dilutive shares contingently issuable		1,221,401		1,513,888			1,266,209		1,543,365
Average diluted common shares outstanding		13,067,223		12,740,104			13,021,744		12,761,989
Diluted net income (loss) per share	$	0.27	$	(0.26	)	$	0.52	$	(0.24	)

NOTE 12 – FAIR VALUE

Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair values:

Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.

Level 2: Significant observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.

Level 3: Significant unobservable inputs that reflect a reporting entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

The Bank used the following methods and significant assumptions to estimate fair value:

Investment Securities: The fair values for investment securities are determined by quoted market prices, if available (Level 1). For securities where quoted prices are not available, fair values are calculated based on market prices of similar securities (Level 2), using matrix pricing. Matrix pricing is a mathematical technique commonly used to price debt securities that are not actively traded and, values debt securities by relying on quoted prices for the specific securities and the securities’ relationship to other benchmark quoted securities (Level 2 inputs). For securities where quoted prices or market prices of similar securities are not available, fair values are calculated using discounted cash flows or other market indicators (Level 3). See below for additional discussion of Level 3 valuation methodologies and significant inputs. The fair values of all securities are determined from third party pricing services without adjustment.

Derivatives-Interest Rate Swaps: The fair values of derivatives are based on valuation models using observable market data as of the measurement date (Level 2). The Bank’s derivatives are traded in an over-the-counter market where quoted market prices are not always available. Therefore, the fair values of derivatives are determined using quantitative models that utilize multiple market inputs. The inputs will vary based on the type of derivative, but could include interest rates, prices and indices to generate continuous yield or pricing curves, prepayment rates, and volatility factors to value the position. The majority of market inputs are actively quoted and can be validated through external sources, including brokers, market transactions and third-party pricing services.  The fair values of all interest rate swaps are determined from third party pricing services without adjustment.

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Impaired Loans: The fair value of impaired loans with specific allocations of the allowance for loan losses is generally based on recent appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available for similar loans and collateral underlying such loans. Such adjustments result in a Level 3 classification of the inputs for determining fair value. Collateral may be valued using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and management’s expertise and knowledge of the client and client’s business, resulting in a Level 3 fair value classification. Impaired loans are evaluated on at least a quarterly basis for additional impairment and adjusted in accordance with the loan policy.

Other Real Estate Owned: Assets acquired through or instead of loan foreclosure are initially recorded at fair value less costs to sell when acquired, establishing a new cost basis. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. Fair value is commonly based on recent real estate appraisals which are updated no less frequently than annually. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach with data from comparable properties. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Appraisals may be adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and/or management’s expertise and knowledge of the collateral. Such adjustments result in a Level 3 classification of the inputs for determining fair value. Real estate owned properties are evaluated on a quarterly basis for additional impairment and adjusted accordingly.  The Company had no other real estate owned at June 30, 2018 or December 31, 2017.

Loans Held For Sale: Loans held for sale are carried at the lower of cost or fair value, which is evaluated on a pool-level basis. The fair value of loans held for sale is determined using quoted prices for similar assets, adjusted for specific attributes of that loan or other observable market data, such as outstanding commitments from third party investors (Level 2).  There were no loans held for sale carried at fair value at June 30, 2018 or December 31, 2017.

Assets and liabilities measured at fair value on a recurring basis are summarized below (dollars in thousands):

	Fair value measurements at June 30, 2018
				Quoted prices
				in active		Significant
				markets for		other			Significant
				identical		observable			unobservable
	Carrying			assets		inputs			inputs
	Value			(Level 1)		(Level 2)			(Level 3)
Assets:
Securities available-for-sale:
U.S. government-sponsored agencies	$	10,762		$	—	$	10,762		$	—
Obligations of states and political subdivisions		44,332			—		44,332			—
Mortgage-backed securities-residential		102,437			—		102,437			—
Asset-backed securities		15,966			—		15,966			—
Other debt securities		9,867			—		9,867			—
Total securities available-for-sale	$	183,364		$	—	$	183,364		$	—
Derivatives:
Interest rate swaps - customer related	$	669		$	—	$	669		$	—
Liabilities:
Derivatives:
Interest rate swaps - customer related	$	(669	)	$	—	$	(669	)	$	—
Interest rate swaps - cash flow hedges		(653	)		—		(653	)		—
Total derivatives	$	(1,322	)	$	—	$	(1,322	)	$	—

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	Fair value measurements at December 31, 2017
				Quoted prices
				in active		Significant
				markets for		other			Significant
				identical		observable			unobservable
	Carrying			assets		inputs			inputs
	Value			(Level 1)		(Level 2)			(Level 3)
Assets:
Securities available-for-sale:
U.S. government-sponsored agencies	$	11,277		$	—	$	11,277		$	—
Obligations of states and political subdivisions		52,998			—		52,998			—
Mortgage-backed securities-residential		106,562			—		106,562			—
Asset-backed securities		16,377			—		16,377			—
Other debt securities		5,407			—		5,407			—
Total securities available-for-sale	$	192,621		$	—	$	192,621		$	—
Derivatives:
Interest rate swaps - customer related	$	184		$	—	$	184		$	—
Liabilities:
Derivatives:
Interest rate swaps - customer related	$	(184	)	$	—	$	(184	)	$	—
Interest rate swaps - cash flow hedges		(1,375	)		—		(1,375	)		—
Total derivatives	$	(1,559	)	$	—	$	(1,559	)	$	—

Assets measured at fair value on a nonrecurring basis are summarized below (dollars in thousands):

	Fair value measurements at June 30, 2018
			Quoted prices
			in active		Significant
			markets for		other		Significant
			identical		observable		unobservable
	Carrying		assets		inputs		inputs
	Value		(level 1)		(level 2)		(level 3)
Assets:
Impaired loans:
Commercial and industrial	$	3,744		—		—		3,744

	Fair value measurements at December 31, 2017
			Quoted prices
			in active		Significant
			markets for		other		Significant
			identical		observable		unobservable
	Carrying		assets		inputs		inputs
	Value		(level 1)		(level 2)		(level 3)
Assets:
Impaired loans:
Commercial and industrial	$	1,388		—		—		1,388

The following table presents quantitative information about Level 3 fair value measurements for assets measured at fair value on a non-recurring basis at June 30, 2018 and December 31, 2017 (dollars in thousands):

					Range
	Fair		Valuation		(Weighted-
June 30, 2018	Value		Technique(s)	Unobservable Input(s)	Average)
Impaired loans:
Commercial and industrial	$	3,744	Discounted cash flow	Probability of default	5%-60%
				Loss severity	5%-50%

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					Range
	Fair		Valuation		(Weighted-
December 31, 2017	Value		Technique(s)	Unobservable Input(s)	Average)
Impaired loans:
Commercial and industrial	$	1,388	Sales comparison approach	Appraisal discounts		15	%

Fair Value of Financial Instruments

The carrying value and estimated fair values of the Bank’s financial instruments at June 30, 2018 and December 31, 2017 were as follows (dollars in thousands):

	June 30, 2018				December 31, 2017
	Carrying				Carrying				Fair value
	amount		Fair value		amount		Fair value		level of input
Financial assets:
Cash and due from banks, interest-bearing deposits in    financial institutions	$	47,150	$	47,150	$	78,078	$	78,078	Level 1
Federal funds sold		11,072		11,072		4,719		4,719	Level 1
Securities available-for-sale		183,364		183,364		192,621		192,621	Level 2
Securities held-to-maturity		3,746		3,798		3,759		3,848	Level 2
Loans held for sale		65,320		66,307		74,093		75,549	Level 2
Restricted equity securities		8,809	N/A			8,806	N/A		N/A
Loans, net		1,046,525		1,037,735		947,537		944,037	Level 3
Accrued interest receivable		4,347		4,347		4,084		4,084	Level 2
Other assets		23,424		23,424		22,663		22,663	Level 2
Financial liabilities:
Deposits		1,145,013		1,140,381		1,119,866		1,065,669	Level 3
Federal Home Loan Bank advances		95,000		94,996		70,000		69,980	Level 2
Other liabilities		2,866		2,866		3,672		3,672	Level 3

The methods and assumptions, not previously presented, used to estimate fair values are described as follows:

(a) Cash and Due from Banks, Interest-Bearing Deposits in Financial Institutions

For these short‑term instruments, the carrying amount is a reasonable estimate of fair value.

(b) Federal Funds Sold

Federal funds sold clear on a daily basis. For this reason, the carrying amount is a reasonable estimate of fair value.

(c) Restricted Equity Securities

It is not practical to determine the fair value of restricted securities due to restrictions placed on their transferability.

(d) Loans, net

During the first quarter of 2018, the Company adopted ASU 2016-01, “Recognition and Measurement of Financial Assets and Liabilities.”  The amendments included within this standard, which are applied prospectively, require the Company to disclose fair value of financial instruments measured at amortized cost on the balance sheet to measure that fair value using an exit price notion.  Prior to adopting the amendments included in the standard, the Company was allowed to measure fair value under an entry price notion.  The entry price notion previously applied by the Company used a discounted cash flows technique to calculate the present value of expected future cash flows for a financial instrument.  The exit price notion uses the same approach, but also incorporates other factors, such as enhanced credit risk, illiquidity risk and market factors that sometimes exist in exit prices in dislocated markets.  

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As of June 30, 2018, the technique used by the Company to estimate the exit price of the loan portfolio consists of similar procedures to those used as of December 31, 2017, but with added emphasis on both illiquidity risk and credit risk not captured by the previously applied entry price notion. The fair value of the Company’s loan portfolio has always included a credit risk assumption in the determination of the fair value of its loans. This credit risk assumption is intended to approximate the fair value that a market participant would realize in a hypothetical orderly transaction. The Company’s loan portfolio is initially fair valued using a segmented approach. The Company divides its loan portfolio into the following categories: variable rate loans, impaired loans and all other loans. The results are then adjusted to account for credit risk as described above.  However, under the new guidance, the Company believes a further credit risk discount must be applied through the use of a discounted cash flow model to compensate for illiquidity risk, based on certain assumptions included within the discounted cash flow model, primarily the use of discount rates that better capture inherent credit risk over the lifetime of a loan. This consideration of enhanced credit risk provides an estimated exit price for the Company’s loan portfolio.

For variable-rate loans that reprice frequently and have no significant change in credit risk, fair values approximate carrying values. Fair values for impaired loans are estimated using discounted cash flow models or based on the fair value of the underlying collateral.

As of December 31, 2017, the fair value of the Company’s loan portfolio includes a credit risk assumption in the determination of the fair value of its loans. This credit risk assumption is intended to approximate the fair value that a market participant would realize in a hypothetical orderly transaction. The Company’s loan portfolio is initially fair valued using a segmented approach. The Company divides its loan portfolio into the following categories: variable rate loans, impaired loans and all other loans. The results are then adjusted to account for credit risk. For variable-rate loans that reprice frequently and have no significant change in credit risk, fair values approximate carrying values. Fair values for impaired loans are estimated using discounted cash flow models or based on the fair value of the underlying collateral. For other loans, fair values are estimated using discounted cash flow models, using current market interest rates offered for loans with similar terms to borrowers of similar credit quality. The values derived from the discounted cash flow approach for each of the above portfolios are then further discounted to incorporate credit risk. The methods utilized to estimate the fair value of loans do not necessarily represent an exit price as of December 31, 2017.

(e) Accrued Interest Receivable

The carrying amounts of accrued interest approximate fair value.

(f) Other Assets

Included in other assets are bank owned life insurance, certain interest rate swap agreements and the cash flow hedge relationships. The fair values of interest rate swap agreements and the cash flow hedge relationships are based on independent pricing services that utilize pricing models with observable market inputs. For bank owned life insurance, the carrying amount is based on the cash surrender value and is a reasonable estimate of fair value.

(g) Deposits

The fair value of demand deposits, savings accounts and certain money market deposits is the amount payable on demand at the reporting date. The fair value of certificates of deposit is estimated by discounted cash flow models, using current market interest rates offered on certificates with similar remaining maturities.

(h) Federal Home Loan Bank Advances

The fair value of fixed rate Federal Home Loan Bank Advances is estimated using discounted cash flow models, using current market interest rates offered on certificates, advances and other borrowings with similar remaining maturities.

(i) Other Liabilities

Included in other liabilities are accrued interest payable, certain interest rate swap agreements, the cash flow hedge relationships and contingent consideration. The fair values of interest rate swap agreements and the cash flow hedge relationships are based on independent pricing services that utilize pricing models with observable market inputs.  The fair value of contingent consideration is estimated by a discounted cash flow model that utilizes various unobservable inputs.  The carrying amounts of accrued interest approximate fair value.

(j) Off-Balance Sheet Instruments

Fair values for off-balance sheet, credit-related financial instruments are based on fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the counterparties’ credit standing.  The fair value of commitments is not material.

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(k) Limitations

Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instruments. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Bank’s entire holdings of a particular instrument. Because no market exists for a significant portion of the Bank’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates.

Fair value estimates are based on estimating on and off‑balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. For example, fixed assets are not considered financial instruments and their value has not been incorporated into the fair value estimates. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.

NOTE 13 – SUBSEQUENT EVENT

On July 11, 2018, CapStar Bank purchased an existing bank branch building in Brentwood, Tennessee for $3.7 million for the future relocation of its Brentwood branch location, which is currently leased.  

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following is a discussion of our financial condition at June 30, 2018 and December 31, 2017 and our results of operations for the three and six months ended June 30, 2018 and 2017.  The purpose of this discussion is to focus on information about our financial condition and results of operations which is not otherwise apparent from the consolidated financial statements.  The following discussion and analysis should be read along with our consolidated financial statements and the related notes included elsewhere in this Report and our Annual Report on Form 10-K for the year ended December 31, 2017.  Annualized results for interim periods may not be indicative of results for the full year or future periods.  In addition to historical information, this discussion and analysis contains forward-looking statements that involve risks, uncertainties and assumptions that could cause actual results to differ materially from our current expectations.  Factors that could cause such differences are discussed in the section entitled “Cautionary Note Regarding Forward-Looking Statements” in this Report and the section entitled “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2017. We assume no obligation to update any of these forward-looking statements except to the extent required by applicable law.

The following discussion and analysis pertains to our historical results on a consolidated basis.  However, because we conduct all of our material business operations through our wholly owned subsidiary, CapStar Bank, the following discussion and analysis relates to activities primarily conducted at the subsidiary level.

All dollar amounts in the tables in this section are in thousands of dollars, except per share data or when otherwise specifically noted.

Overview

Our diluted net income (loss) per share of common stock for the three and six months ended June 30, 2018 was $0.27 and $0.52, respectively, compared to $(0.26) and $(0.24), respectively, for the three and six months ended June 30, 2017.  The increase in our net income was primarily due to decreased loan charge-offs and the resulting provision for loan losses.  During the six months ended June 30, 2018 and 2017, loan charge-offs amounted to $0.3 million and $12.4 million, respectively. At June 30, 2018, loans increased to $1.05 billion, as compared to $0.95 billion at December 31, 2017.  Total deposits increased to $1.15 billion at June 30, 2018 from $1.12 billion at December 31, 2017.

During the quarter, the Company and Athens Bancshares Corporation (“Athens”), the bank holding company for Athens Federal Community Bank, National Association (“Athens Federal”), Athens, Tennessee, announced that the Company and Athens entered into a definitive agreement pursuant to which Athens will merge with and into CapStar and Athens Federal will merge with and into CapStar Bank (the “Merger Agreement”).  Pursuant to the Merger Agreement, Athens shareholders will receive 2.864 shares of CapStar common stock for each share of Athens common stock. We incurred merger related expenses connected with this transaction amounting to $0.3 million during the three and six months ended June 30, 2018.  No merger related expenses were incurred during the three and six months ended June 30, 2017.

Also, in view of our financial performance and the anticipated performance of the combined company, on June 11, 2018, the board of directors of CapStar approved the initiation of regular quarterly cash dividends to its shareholders. A quarterly dividend of $0.04 per share will be paid on or about August 15, 2018 to all shareholders of record of CapStar’s voting and non-voting common stock and preferred stock as of the close of business on July 31, 2018.

The Company’s primary revenue sources are net interest income and fees from various financial services provided to customers. Net interest income is the difference between interest income earned on loans, investment securities and other interest earning assets less interest expense on deposit accounts and other interest bearing liabilities. Loan volume and interest rates earned on those loans are critical to our overall profitability. Similarly, deposit volume is crucial to funding loans, and rates paid on deposits directly impact our profitability. Business volumes are influenced by competition, new business acquisition efforts and economic factors including market interest rates, business spending and consumer confidence.

Net interest income increased $1.0 million, or 9.6%, for the three months ended June 30, 2018 compared to the same period in 2017 and increased $1.9 million, or 9.4%, for the six months ended June 30, 2018 compared to the same period in 2017.  The positive effects of increased yields on earning assets were partially offset by the negative effect of increasing deposit costs. Net interest margin increased to 3.46% for the three months ended June 30, 2018, compared with 3.20% for the same period of 2017 and increased to 3.43% for the six months ended June 30, 2018, compared with 3.19% for the same period of 2017.

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In response to the assessment of risk in the loan portfolio, including net loan growth and charge-offs, we recorded a $0.2 million and $0.8 million provision for loan losses, respectively, for the three and six months ended June 30, 2018 compared to $9.7 million and $13.1 million, respectively, for the three and six months ended June 30, 2017. The 2017 provision for loan losses was caused primarily by deterioration in the credit quality of commercial and industrial loans to oneborrower.  The provision for loan losses represents a charge to earnings necessary to establish an allowance for loan losses that, in management’s evaluation, is adequate to provide coverage for the estimated probable inherent losses on outstanding loans.  Our allowance for loan losses at June 30, 2018 was 1.41% of total loans, compared with 1.45% of total loans at December 31, 2017.

Total non-interest income for the three months ended June 30, 2018 increased $0.1 million, or 3.7%, compared with the same period in 2017, and comprised 15% of total revenues.  For the six months ended June 30, 2018, total non-interest income increased $1.1 million, or 22.0%, compared with the same period in 2017, and comprised 17% of total revenues.  These increases were primarily the result of higher Tri-Net fees related to increased volumes of commercial real estate loan sales.

As we grew our team and expanded in the Nashville MSA, total non-interest expense for the three and six months ended June 30, 2018 increased $1.8 million, or 21.8%, and $3.0 million, or 18.0%, respectively, compared with the same periods in 2017. Our efficiency ratio for the three months ended June 30, 2018 was 69.7% compared to 62.1% for the same period in 2017.  For the six months ended June 30, 2018 our efficiency ratio was 69.2% compared to 65.6% for the same period in 2017.  The increases in our efficiency ratio are a reflection of our investment in new employees, increased incentive compensation consistent with the Company’s overall performance, and the addition of merger related expenses resulting from our recently announced merger with Athens.

Our effective tax rate for the three and six months ended June 30, 2018 was 15.9% and 14.6%, respectively, compared to (28.4)% and (31.4)% for the same periods in 2017.  The increase in the effective tax rate is largely the result of the decreasing ratio of excess tax benefits from stock compensation to income before income taxes.

Tangible common equity (TCE), a non-GAAP measure, is a measure of a company's capital which is useful in evaluating the quality and adequacy of capital. The ratio of tangible common equity to total tangible assets was 9.9% as of June 30, 2018, compared with 9.8% at December 31, 2017.  See “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Non-GAAP Financial Measures” for details on reconciliations to the most directly comparable U.S. GAAP measures.

The following sections provide more details on subjects presented in this overview.

(a) Results of Operations

The following is a summary of our results of operations:

						2018 - 2017								2018 - 2017
	Three Months Ended					Percent			Six Months Ended					Percent
	June 30,					Increase			June 30,					Increase
	2018		2017			(Decrease)			2018		2017			(Decrease)
Interest income	$	15,354	$	12,890			19.1	%	$	29,098	$	24,869			17.0	%
Interest expense		3,767		2,319			62.4	%		6,665		4,367			52.6	%
Net interest income		11,587		10,571			9.6	%		22,433		20,502			9.4	%
Provision for loan losses		169		9,690			(98.3	)%		846		13,094			(93.5	)%
Net interest income after provision for loan losses		11,418		881			1196.0	%		21,587		7,408			191.4	%
Noninterest income		2,765		2,666			3.7	%		5,854		4,799			22.0	%
Noninterest expense		10,005		8,217			21.8	%		19,586		16,592			18.0	%
Net income (loss) before income taxes		4,178		(4,670	)		189.5	%		7,855		(4,385	)		279.1	%
Income tax expense (benefit)		665		(1,328	)		150.1	%		1,148		(1,375	)		183.5	%
Net income (loss)	$	3,513	$	(3,342	)		205.1	%	$	6,707	$	(3,010	)		322.9	%
Basic net income (loss) per share of common stock	$	0.30	$	(0.30	)		199.6	%	$	0.57	$	(0.27	)		312.7	%
Fully diluted net income (loss) per share of common stock	$	0.27	$	(0.26	)		202.5	%	$	0.52	$	(0.24	)		318.4	%

Annualized return on average assets and annualized return on average shareholders’ equity were 1.01% and 9.30%, respectively, for the second quarter of 2018, compared with (0.96)% and (9.39)%, respectively, for the same period in 2017.

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Annualized return on average assets and annualized return on average shareholders’ equity were 0.98% and 9.02%, respectively, for the six months ended June 30, 2018, compared with (0.44)% and (4.27)%, respectively, for the same period in 2017.

Net Interest Income

The largest component of our net income is net interest income – the difference between the income earned on interest-earning assets and the interest paid on deposits and borrowed funds used to support our assets. Net interest income divided by total average interest-earning assets represents our net interest margin. The major factors that affect net interest income and net interest margin are changes in volumes, the yield on interest-earning assets and the cost of interest-bearing liabilities. Our margin can also be affected by economic conditions, the competitive environment, loan demand and deposit flow. Our ability to respond to changes in these factors by using effective asset-liability management techniques is critical to maintaining the stability of the net interest margin and our net interest income.

The following tables set forth the amount of our average balances, interest income or interest expense for each category of interest-earning assets and interest-bearing liabilities and the average interest rate for interest-earning assets and interest-bearing liabilities, net interest spread and net interest margin for the three and six months ended June 30, 2018 and 2017:

	For the Three Months Ended June 30,
	2018							2017
	Average Outstanding Balance		Interest Income/ Expense		Average Yield/ Rate			Average Outstanding Balance		Interest Income/ Expense		Average Yield/ Rate
Interest-Earning Assets
Loans (1)	$	1,041,835	$	13,090		5.04	%	$	1,028,968	$	11,011		4.29	%
Loans held for sale		58,297		706		4.86	%		34,690		362		4.18	%
Securities:
Taxable investment securities (2)		155,552		1,067		2.74	%		174,075		1,069		2.46	%
Investment securities exempt from    federal income tax (3)		42,381		261		3.12	%		53,356		317		3.66	%
Total securities		197,933		1,328		2.82	%		227,431		1,386		2.74	%
Cash balances in other banks		50,335		211		1.68	%		49,735		115		0.93	%
Funds sold		2,898		19		2.57	%		3,637		16		1.78	%
Total interest-earning assets		1,351,298		15,354		4.58	%		1,344,461		12,890		3.90	%
Noninterest-earning assets		45,061							48,870
Total assets	$	1,396,359						$	1,393,331
Interest-Bearing Liabilities
Interest-bearing deposits:
Interest-bearing transaction accounts	$	279,705		892		1.28	%	$	302,532		586		0.78	%
Savings and money market deposits		428,330		1,413		1.32	%		379,800		773		0.82	%
Time deposits		193,041		834		1.73	%		200,389		574		1.15	%
Total interest-bearing deposits		901,076		3,139		1.40	%		882,721		1,933		0.88	%
Borrowings and repurchase agreements		99,286		628		2.53	%		130,824		386		1.18	%
Total interest-bearing liabilities		1,000,362		3,767		1.51	%		1,013,545		2,319		0.92	%
Noninterest-bearing deposits		237,324							229,111
Total funding sources		1,237,686							1,242,656
Noninterest-bearing liabilities		7,138							7,888
Shareholders’ equity		151,535							142,787
Total liabilities and shareholders’ equity	$	1,396,359						$	1,393,331
Net interest spread (4)						3.07	%						2.98	%
Net interest income/margin (5)			$	11,587		3.46	%			$	10,571		3.20	%

(1) Average loan balances include nonaccrual loans. Interest income on loans includes amortization of deferred loan fees, net of deferred loan costs.

(2) Taxable investment securities include restricted equity securities.

(3) Yields on tax exempt securities are shown on a tax equivalent basis.

(4) Net interest spread is the average yield on total interest-earning assets minus the average rate on total interest-bearing liabilities.

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(5) Net interest margin is annualized net interest income calculated on a tax equivalent basis divided by total average interest-earning assets for the period.

	For the Six Months Ended June 30,
	2018							2017
	Average Outstanding Balance		Interest Income/ Expense		Average Yield/ Rate			Average Outstanding Balance		Interest Income/ Expense		Average Yield/ Rate
Interest-Earning Assets
Loans (1)	$	1,012,827	$	24,574		4.89	%	$	1,001,810	$	21,205		4.27	%
Loans held for sale		63,163		1,456		4.65	%		31,542		635		4.06	%
Securities:
Taxable investment securities (2)		155,918		2,072		2.66	%		177,840		2,150		2.42	%
Investment securities exempt from    federal income tax (3)		44,671		546		3.09	%		54,391		642		3.63	%
Total securities		200,589		2,618		2.75	%		232,231		2,792		2.70	%
Cash balances in other banks		49,465		411		1.68	%		48,893		219		0.91	%
Funds sold		3,216		39		2.41	%		2,689		18		1.39	%
Total interest-earning assets		1,329,260		29,098		4.44	%		1,317,165		24,869		3.86	%
Noninterest-earning assets		44,610							49,766
Total assets	$	1,373,870						$	1,366,931
Interest-Bearing Liabilities
Interest-bearing deposits:
Interest-bearing transaction accounts	$	283,002		1,646		1.17	%	$	316,502		1,204		0.77	%
Savings and money market deposits		404,064		2,418		1.21	%		406,937		1,587		0.79	%
Time deposits		184,074		1,483		1.62	%		184,446		1,046		1.14	%
Total interest-bearing deposits		871,140		5,547		1.28	%		907,885		3,837		0.85	%
Borrowings and repurchase agreements		92,006		1,118		2.45	%		88,206		530		1.21	%
Total interest-bearing liabilities		963,146		6,665		1.40	%		996,091		4,367		0.88	%
Noninterest-bearing deposits		253,727							219,762
Total funding sources		1,216,873							1,215,853
Noninterest-bearing liabilities		7,083							8,905
Shareholders’ equity		149,914							142,173
Total liabilities and shareholders’ equity	$	1,373,870						$	1,366,931
Net interest spread (4)						3.04	%						2.98	%
Net interest income/margin (5)			$	22,433		3.43	%			$	20,502		3.19	%

(1) Average loan balances include nonaccrual loans. Interest income on loans includes amortization of deferred loan fees, net of deferred loan costs.

(2) Taxable investment securities include restricted equity securities.

(3) Yields on tax exempt securities are shown on a tax equivalent basis.

(4) Net interest spread is the average yield on total interest-earning assets minus the average rate on total interest-bearing liabilities.

(5) Net interest margin is annualized net interest income calculated on a tax equivalent basis divided by total average interest-earning assets for the period.

Our net interest margin was 3.46% and 3.20% for the second quarter of 2018 and 2017, respectively.  For the six months ended June 30, 2018 and 2017, our net interest margin was 3.43% and 3.19%, respectively.  The increase in net interest margin for both periods was primarily due to rising yields on earning assets offset by rising deposit costs.  From December 31, 2016 to June 30, 2018, the LIBOR – 1 month interest rate increased from 0.72% to 2.09%.  Approximately 65% of our loan portfolio is variable in nature.

For the second quarter of 2018 and 2017, average loan yields increased from 4.29% to 5.04% which was primarily driven by increases in short-term interest rate indexes affecting the variable rate portion of our loan portfolio, offset by competitive pricing pressures.  For the six months ended June 30, 2018 and 2017, average loan yields increased from 4.27% to 4.89%.

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For the second quarter of 2017 and 2018, average security yields increased from 2.74% to 2.82% and from 2.70% to 2.75% for the six months ended June 30, 2017 and 2018, respectively, primarily due to increases in the LIBOR rate on the variable rate portion of our securities portfolio.  

The resulting yield on average interest-earning assets increased 68 basis points for the second quarter of 2018 compared to the similar period in 2017 and 58 basis points for the six months ended June 30, 2018 compared to the similar period of 2017.

The average rate paid on interest-bearing liabilities was 1.51% for the second quarter of 2018, as compared to 0.92% for the same period in 2017. For the six months ended June 30, 2018 and 2017, the average rate paid on interest-bearing liabilities was 1.40% and 0.88%, respectively.  These increases were due to the increases in the Fed Funds rate which increased from 0.75% at December 31, 2016 to 2.00% at June 30, 2018. We passed along a portion of these rate increases to our clients.

Asset/Liability Management and Interest Rate Risk

Managing interest rate risk is fundamental for the financial services industry. By considering both on and off-balance sheet financial instruments, management evaluates interest rate sensitivity while attempting to optimize net interest income within the constraints of prudent capital adequacy, liquidity needs, market opportunities and customer requirements.

Interest Rate Simulation Sensitivity Analysis

We use earnings at risk, or EAR, simulations to assess the impact of changing rates on earnings under a variety of scenarios and time horizons. The simulation model is designed to reflect the dynamics of interest earning assets, interest bearing liabilities and off-balance sheet financial instruments.  These simulations utilize both instantaneous and parallel changes in the level of interest rates, as well as non-parallel changes such as changing slopes and twists of the yield curve.  Static simulation models are based on current exposures and assume a constant balance sheet with no new growth.  Dynamic simulation models are also utilized that rely on detailed assumptions regarding changes in existing lines of business, new business, and changes in management and client behavior.  By estimating the effects of interest rate increases and decreases, the model can reveal approximate interest rate risk exposure. The simulation model is used by management to gauge approximate results given a specific change in interest rates at a given point in time. The model is therefore a tool to indicate earnings trends in given interest rate scenarios and does not indicate actual expected results.

At June 30, 2018, our EAR static simulation results indicated that our balance sheet is asset sensitive to parallel shifts in interest rates. This indicates that our assets generally reprice faster than our liabilities, which results in a favorable impact to net interest income when market interest rates increase. Many assumptions are used to calculate the impact of interest rate fluctuations on our net interest income, such as asset prepayments, non-maturity deposit price sensitivity and decay rates, and key rate drivers. Because of the inherent use of these estimates and assumptions in the model, our actual results may, and most likely will, differ from our static EAR results. In addition, static EAR results do not include actions that our management may undertake to manage the risks in response to anticipated changes in interest rates or client behavior. For example, as part of our asset/liability management strategy, management has the ability to increase asset duration and/or decrease liability duration in order to reduce asset sensitivity, or to decrease asset duration and/or increase liability duration in order to increase asset sensitivity. 

The following table illustrates the results of our EAR analysis to determine the extent to which our net interest income over the next 12 months would change if prevailing interest rates increased or decreased by the specified amounts.

	Net interest income change
Increase 200bp		4.6	%
Increase 100bp		3.3
Decrease 100bp		(3.7	)
Decrease 200bp		(17.3	)

Provision for Loan Losses

Our policy is to maintain an allowance for loan losses at a level sufficient to absorb probable incurred losses inherent in the loan portfolio. The allowance is increased by a provision for loan losses, which is a charge to earnings, is decreased by charge-offs and is increased by loan recoveries. Our allowance for loan losses as a percentage of total loans was 1.41% and 1.45% at June 30, 2018 and December 31, 2017, respectively.

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The provision for loan losses amounted to $0.2 million and $0.8 million, respectively, for the three and six months ended June 30, 2018 compared to $9.7million and $13.1 million, respectively, for the three and six months ended June 30, 2017. Provision expense is impacted by the absolute level of loans, loan growth, the credit quality of the loan portfolio and the amount of net charge-offs.

Provision expense decreased for the three and six months ended June 30, 2018 compared to the comparable periods in 2017 due to decreased charge-offs.  Charge-offs for the three and six months ended June 30, 2018 were $0.1 million and $0.3 million, respectively, compared to $11.2 million and $12.4 million for the three and six months ended June 30, 2017, respectively.  

Based upon our evaluation of the loan portfolio, we believe the allowance for loan losses to be adequate to absorb our estimate of probable losses existing in the loan portfolio at June 30, 2018. While our policies and procedures used to estimate the allowance for loan losses, as well as the resultant provision for loan losses charged to operations, are considered adequate by management, they are necessarily approximate and imprecise. There are factors beyond our control, such as conditions in the local and national economy, local real estate markets, or particular industry or borrower-specific conditions, which may materially negatively impact our asset quality and the adequacy of our allowance for loan losses and, thus, the resulting provision for loan losses.  See “Notes to Consolidated Financial Statements (Unaudited) — Note 3 — Loans and Allowance for Loan Losses” for additional information on our allowance for loan losses.

Noninterest Income

In addition to net interest income, we generate other types of recurring noninterest income from our lines of business. Our banking operations generate revenue from service charges and fees on deposit accounts. We have a mortgage banking line of business that generates revenue from originating and selling mortgages, a line of business that originates and sells commercial real estate loans (Tri-Net), and we have a revenue-sharing relationship with a registered broker-dealer, which generates wealth management fees. In addition to these types of recurring noninterest income, we own insurance on several key employees and record income on the increase in the cash surrender value of these policies.

The following table sets forth the principal components of noninterest income for the periods indicated.

					2018-2017							2018-2017
	Three Months Ended				Percent			Six Months Ended				Percent
	June 30,				Increase			June 30,				Increase
	2018		2017		(Decrease)			2018		2017		(Decrease)
Noninterest income:
Treasury management and other deposit service charges	$	427	$	342		24.8	%	$	829	$	670		23.6	%
Loan commitment fees		185		187		(0.6	)%		572		423		35.3	%
Net gain on sale of securities		3		40		(92.6	)%		3		34		(91.0	)%
Tri-Net fees		325		297		9.4	%		853		382		123.7	%
Mortgage banking income		1,383		1,370		0.9	%		2,695		2,587		4.2	%
Other noninterest income		442		430		2.9	%		902		703		27.9	%
Total noninterest income	$	2,765	$	2,666		3.7	%	$	5,854	$	4,799		22.0	%

The increase in treasury management and other deposit service charges for the three and six months ended June 30, 2018 compared to the same periods in 2017 is driven primarily by transaction volume, which can fluctuate from period to period.  

Similarly, loan commitment fees vary from period to period based on the timing of one-time, transaction related loan fees.

Tri-Net fees represent a line of business, implemented in the fourth quarter of 2016, which originates and sells commercial real estate loans to third-party investors.  All of these loan sales transfer servicing rights to the buyer.  The volume of loan sales has increased as this new line of business was implemented.

Mortgage banking income consists of mortgage fee income from the origination and sale of mortgage loans.  These mortgage fees are for loans that we originated and that are subsequently sold to third-party investors.  All of these loan sales transfer servicing rights to the buyer.  Mortgage origination fees will fluctuate from quarter to quarter as the interest rate environment changes and due to the timing of loan sales.  

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Noninterest Expense

Our total noninterest expense increase reflects expenses that we have incurred as we build the foundation to support our recent growth and enable us to execute our growth strategy. The following table presents the primary components of noninterest expense for the periods indicated.

					2018-2017							2018-2017
	Three Months Ended				Percent			Six Months Ended				Percent
	June 30,				Increase			June 30,				Increase
	2018		2017		(Decrease)			2018		2017		(Decrease)
Noninterest expense:
Salaries and employee benefits	$	6,340	$	4,784		32.5	%	$	12,598	$	9,870		27.6	%
Data processing and software		810		711		13.9	%		1,608		1,331		20.8	%
Professional fees		344		350		(1.5	)%		819		714		14.6	%
Occupancy		535		539		(0.7	)%		1,056		987		7.0	%
Equipment		602		544		10.7	%		1,141		1,040		9.7	%
Regulatory fees		233		301		(22.6	)%		436		608		(28.3	)%
Merger related expenses		335		—		100.0	%		335		—		100.0	%
Other operating		806		988		(18.4	)%		1,593		2,042		(21.9	)%
Total noninterest expense	$	10,005	$	8,217		21.8	%	$	19,586	$	16,592		18.0	%

Salaries and employee benefits increased 32.5% and 27.6%, respectively, for the three and six months ended June 30, 2018 compared to the similar periods in 2017. The increase is primarily related to increased incentive expense related to improved financial performance and the addition of personnel associated with continued expansion in the Nashville MSA. The number of full-time employees increased from 170 at January 1, 2017 to 183 at June 30, 2018.

Data processing and software expense increased during the periods presented due to an increase in the volume of transactions and implementation of new software in our mortgage banking line of business.

Merger related expenses during the three and six months ended June 30, 2018 are the result of our recently announced merger with Athens.  Merger related expenses are expected to approximate $11.5 million in total over the course of the acquisition.

Other operating expense declined for the three and six months ended June 30, 2018 compared to the similar periods in 2017 primarily because of one-time costs incurred in 2017 related to the move of our corporate headquarters and expenses related to the loans charged off in the second quarter of 2017.

Our efficiency ratio (ratio of noninterest expense to the sum of net interest income and noninterest income) was 69.7% for the three months ended June 30, 2018 compared to 62.1% for the same period 2017.  For the six months ended June 30, 2018 and 2017, our efficiency ratio was 69.2% and 65.6%, respectively. The efficiency ratio for both periods was negatively impacted by growth in our expenses that outpaced increases in our revenues.  The increases in our efficiency ratio are a reflection of our investment in new employees, increased incentive compensation consistent with the Company’s overall performance, and the addition of merger related expenses resulting from our recently announced merger with Athens. The efficiency ratio measures the amount of expense that is incurred to generate a dollar of revenue. For the six months ended June 30, 2018, our revenue base (net interest income plus noninterest income) grew at a rate of approximately 0.7 times our noninterest expense.

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Income Tax Provision

During the three and six months ended June 30, 2018, we recorded income tax expense of $0.7 million and $1.1 million, respectively, compared to an income tax benefit of $1.3 million and $1.4 million, respectively, for the three and six months ended June 30, 2017. Our income tax expense for the six months ended June 30, 2018 reflects an effective income tax rate of 14.6% compared to (31.4)% for the same period in 2017.  Our effective tax rate differs from the statutory tax rate by our investments in municipal securities, company owned life insurance, state tax credits, net of the effect of certain non-deductible expenses and the recognition of excess tax benefits related to stock compensation.  

In March 2016, the FASB issued guidance to simplify several aspects of the accounting for share-based payment award transactions, including income tax consequences. In addition to other changes, the guidance changes the accounting for excess tax benefits and tax deficiencies from generally being recognized in additional paid-in capital to recognition as income tax expense or benefit in the period they occur. The Company adopted the new guidance in the first quarter of 2017. As a result, the Company’s income tax expense was reduced by $277,000 and $640,000 for the three and six months ended June 30, 2018, respectively, and by $21,000 and $167,000 for the three and six months ended June 30, 2017, respectively.

(b) Financial Condition

Balance Sheet

Total assets increased $56.8 million, or 4.2%, from $1.34 billion on December 31, 2017 to $1.40 billion on June 30, 2018. Loans grew $99.0 million, or 10.4%, in the first six months of 2018, offset by a decrease in cash of $24.6 million, or 29.7%, for the same period. Loans held for sale decreased $8.8 million, or 11.8%, during the first six months of 2018.  

Total liabilities increased $50.6 million, or 4.2%, from $1.20 billion on December 31, 2017 to $1.25 billion on June 30, 2018. Deposits increased $25.0 million, or 2.2% over the same period of time.  We increased our Federal Home Loan Bank advances $25.0 million during the first six months of 2018 to help fund our loan growth.

Loans and Leases

The composition of loans and leases at June 30, 2018 and December 31, 2017 and the percentage of each classification to total loans are summarized as follows:

	June 30, 2018					December 31, 2017
	Amount		Percent			Amount		Percent
Commercial real estate - owner occupied	$	121,474		11.6	%	$	101,132		10.7	%
Commercial real estate - non-owner occupied		286,770		27.4	%		249,490		26.3	%
Consumer real estate		109,915		10.5	%		102,581		10.8	%
Construction and land development		96,580		9.2	%		82,586		8.7	%
Commercial and industrial		386,065		36.9	%		373,248		39.4	%
Consumer		9,671		0.9	%		6,862		0.7	%
Other		36,429		3.5	%		31,983		3.4	%
Total loans	$	1,046,904		100.0	%	$	947,882		100.0	%

At June 30, 2018, our loan portfolio composition remained relatively consistent with the composition at December 31, 2017. The commercial real estate owner-occupied category contains loans which are similar in many ways to our commercial and industrial lending in that these loans are generally made to businesses on the basis of the cash flows of the business rather than on the valuation of the real estate.

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Non-Performing Loans and Assets

Information summarizing non-performing assets, including non-accrual loans follows:

	June 30, 2018			December 31, 2017
Non-accrual loans	$	5,419		$	2,695
Troubled debt restructurings		1,173			1,207
Loans past due over 89 days and still accruing		216			231
Non-performing loans		5,419			2,695
Foreclosed real estate		—			—
Non-performing assets	$	5,419		$	2,695
Non-performing loans as a percentage of total loans		0.52	%		0.28	%
Non-performing assets as a percentage of total assets		0.39	%		0.20	%

The following table sets forth the major classifications of non-accrual loans:

	June 30, 2018		December 31, 2017
Commercial real estate	$	—	$	1,207
Consumer real estate		—		—
Construction and land development		—		—
Commercial and industrial		5,419		1,488
Consumer		—		—
Other		—		—
Total loans	$	5,419	$	2,695

(c) Liquidity

Liquidity risk is the risk that we will be unable to meet our obligations as they become due because of an inability to liquidate assets or obtain adequate funding.  To manage liquidity risk, management has established a comprehensive management process for identifying, measuring, monitoring and controlling liquidity risk.  Because of its critical importance to the viability of the Bank, liquidity risk management is fully integrated into our risk management processes. Critical elements of our liquidity risk management include: effective corporate governance consisting of oversight by the board of directors and active involvement by management; appropriate strategies, policies, procedures, and limits used to manage and mitigate liquidity risk; comprehensive liquidity risk measurement and monitoring systems (including assessments of the current and prospective cash flows or sources and uses of funds) that are commensurate with the complexity and business activities of the Bank; active management of intraday liquidity and collateral; an appropriately diverse mix of existing and potential future funding sources; adequate levels of highly liquid marketable securities free of legal, regulatory, or operational impediments, that can be used to meet liquidity needs in stressful situations; comprehensive contingency funding plans that sufficiently address potential adverse liquidity events and emergency cash flow requirements; and internal controls and internal audit processes sufficient to determine the adequacy of the institution’s liquidity risk management process.

The role of liquidity management is to ensure funds are available to meet depositors’ withdrawal and borrowers’ credit demands while at the same time maximizing financial results. This is accomplished by balancing changes in demand for funds with changes in the supply of those funds. Liquidity is provided by short-term liquid assets that can be converted to cash, investment securities available-for-sale, various lines of credit available to us, and the ability to attract funds from external sources, principally deposits.

Our most liquid assets are comprised of cash and due from banks, available-for-sale marketable investment securities and federal funds sold. The fair value of the available-for-sale investment portfolio was $183.4 million at June 30, 2018. We pledge portions of our investment securities portfolio to secure public fund deposits, derivative positions and Federal Home Loan Bank (“FHLB”) advances. At June 30, 2018, total investment securities pledged for these purposes comprised 63% of the estimated fair value of the entire investment portfolio, leaving $68.8 million of unpledged securities.

We have a large base of non-maturity customer deposits, defined as demand, savings, and money market deposit accounts. At June 30, 2018, such deposits totaled $937.8 million and represented 82% of our total deposits.

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Other sources of funds available to meet daily needs include FHLB advances. As a member of the FHLB of Cincinnati, the Company has access to credit products offered by the FHLB. The Company views these borrowings as a low cost alternative to other time deposits. At June 30, 2018, available credit from the FHLB totaled $89.4 million. Additionally, we had available federal funds purchased lines with correspondent banks totaling $110.0 million at June 30, 2018.

The principal source of cash for CapStar Financial Holdings, Inc. (the “Parent Company”) is dividends paid to it as the sole shareholder of the Bank. At June 30, 2018, the Bank was able to pay up to $21.9 million in dividends to the Parent Company without regulatory approval subject to the ongoing capital requirements of the Bank.

Accordingly, management believes that our funding sources are at sufficient levels to satisfy our short-term and long-term liquidity needs.

(d) Capital Resources

At June 30, 2018, shareholders’ equity totaled $153.1 million, an increase of $6.2 million since December 31, 2017. Accordingly, as of June 30, 2018, the Company and the Bank were well-capitalized under the regulatory framework for prompt corrective action.  See the Consolidated Statement of Changes in Shareholders’ Equity and Note 10 of the consolidated financial statements for further detail of the changes in equity since the end of 2017.

Off-Balance Sheet Arrangements

In the normal course of business, we enter into various transactions that, in accordance with GAAP, are not included in our consolidated balance sheet.  We enter into these transactions to meet the financing needs of our clients. These transactions include commitments to extend credit and standby letters of credit, which involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amounts recognized in our consolidated balance sheets. Most of these commitments mature within two years and are expected to expire without being drawn upon.  Standby letters of credit are included in the determination of the amount of risk-based capital that the Company and the Bank are required to hold.

We enter into contractual loan commitments to extend credit, normally with fixed expiration dates or termination clauses, at specified rates and for specific purposes. Substantially all of our commitments to extend credit are contingent upon clients maintaining specific credit standards until the time of loan funding.

Standby letters of credit are written conditional commitments issued by us to guarantee the performance of a client to a third party. In the event that the client does not perform in accordance with the terms of the agreement with the third party, we would be required to fund the commitment.  The maximum potential amount of future payments we could be required to make is represented by the contractual amount of the commitment. If the commitment is funded, we would be entitled to seek recovery from the client.  Our policies generally require that standby letter of credit arrangements contain security and debt covenants similar to those contained in loan agreements.

We minimize our exposure to loss under loan commitments and standby letters of credit by subjecting them to the same credit approval and monitoring procedures as we do for on-balance sheet instruments.  We assess the credit risk associated with certain commitments to extend credit and establish a liability for probable credit losses.  The effect on our revenue, expenses, cash flows and liquidity of the unused portions of these commitments cannot be reasonably predicted because there is no guarantee that the lines of credit will be used.

Our off-balance sheet arrangements are summarized in Note 7 of the consolidated financial statements.

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(e) Non-GAAP Financial Measures

This Report includes the following financial measures that have been prepared other than in accordance with generally accepted accounting principles in the United States (“non-GAAP financial measures”): tangible common equity, tangible common equity to total tangible assets and tangible common equity per share. The Company believes that these non-GAAP financial measures (i) provide useful information to management and investors that is supplementary to its financial condition, results of operations and cash flows computed in accordance with GAAP, (ii) enable a more complete understanding of factors and trends affecting the Company’s business, and (iii) allow investors to evaluate the Company’s performance in a manner similar to management, the financial services industry, bank stock analysts and bank regulators; however, the Company acknowledges that its non-GAAP financial measures have a number of limitations.  As such, you should not view these disclosures as a substitute for results determined in accordance with GAAP, and they are not necessarily comparable to non-GAAP financial measures that other companies use.

The following table presents a reconciliation of tangible common equity, tangible common equity to total tangible assets and tangible common equity per share to the most directly comparable GAAP financial measures.

(dollars in thousands, except per share data)	June 30, 2018			December 31, 2017
Total equity	$	153,146		$	146,946
Less core deposit intangible		(3	)		(23	)
Less goodwill		(6,219	)		(6,219	)
Less preferred equity		(9,000	)		(9,000	)
Tangible common equity	$	137,924		$	131,704
Total assets	$	1,401,181		$	1,344,429
Less core deposit intangible		(3	)		(23	)
Less goodwill		(6,219	)		(6,219	)
Total tangible assets	$	1,394,959		$	1,338,187
Total shareholders' equity to total assets		10.93	%		10.93	%
Tangible common equity ratio		9.89	%		9.84	%
Total shares of common stock outstanding		11,931,131			11,582,026
Book value per share of common stock	$	12.08		$	11.91
Tangible book value per share of common stock		11.56			11.37

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(f) Recently Issued Accounting Pronouncements

ASU 2014-09, Revenue from Contracts with Customers

In May 2014, the FASB issued guidance to change the recognition of revenue from contracts with customers. The core principle of the new guidance is that an entity should recognize revenue to reflect the transfer of goods and services to customers in an amount equal to the consideration the entity receives or expects to receive. The guidance was effective for the Company for reporting periods beginning after December 15, 2017 and had no significant impact on financial reporting.

The Company's revenue is comprised of net interest income and noninterest income. The scope of the guidance explicitly excludes net interest income as well as many other revenues for financial assets and liabilities including loans, leases, securities, and derivatives.  Accordingly, the majority of the Company’s revenues were not affected. The Company has performed an assessment of revenue contracts related to revenue streams that are within the scope of the standard. The accounting policies have not changed since the principles of revenue recognition from the ASU are consistent with existing guidance and current practices applied by our businesses. We have not identified material changes to the timing or amount of revenue recognition nor have we identified a significant need for material changes to disclosures.

ASU 2016-02, Leases

In February 2016, the FASB amended the Leases topic of the Accounting Standards Codification to revise certain aspects of recognition, measurement, presentation, and disclosure of leasing transactions. The amendments will be effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted.

We expect to adopt the guidance using the modified retrospective method and practical expedients for transition. The practical expedients allow us to largely account for our existing leases consistent with current guidance except for the incremental balance sheet recognition for lessees. We have started an initial evaluation of our leasing contracts and activities. We have also started developing our methodology to estimate the right-of use assets and lease liabilities, which will be based on the present value of lease payments (the December 31, 2017 future minimum lease payments were $14.6 million). We do not expect a material change to the timing of expense recognition, but we are early in the implementation process and will continue to evaluate the impact. We are evaluating our existing disclosures and may need to provide additional information as a result of adoption of the ASU.

ASU 2016-13, Financial Instruments – Credit Losses

In June 2016, the FASB issued guidance to change the accounting for credit losses and modify the impairment model for certain debt securities. The amendments will be effective for the Company for reporting periods beginning after December 15, 2019. Early adoption is permitted for all organizations for periods beginning after December 15, 2018.

The Company will apply the amendments to the ASU through a cumulative-effect adjustment to retained earnings as of the beginning of the year of adoption. While early adoption is permitted beginning in first quarter 2019, we do not expect to elect that option. We are evaluating the impact of the ASU on our consolidated financial statements. In addition to our allowance for loan losses, we will also record an allowance for credit losses on debt securities instead of applying the impairment model currently utilized. The amount of the adjustments will be impacted by each portfolio's composition and credit quality at the adoption date as well as economic conditions and forecasts at that time.

ASU 2017-04, Simplifying the Test of Goodwill Impairment

In January 2017, the FASB amended the Goodwill and Other Topic of the Accounting Standards Codification to simplify the accounting for goodwill impairment for public business entities and other entities that have goodwill reported in their financial statements and have not elected the private company alternative for the subsequent measurement of goodwill. The amendment removes Step 2 of the goodwill impairment test. A goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill.  The effective date and transition requirements for the technical corrections will be effective for the Company for reporting periods beginning after December 15, 2019.

ASU 2017-09, Scope of Modification Accounting

In May 2017, the FASB amended the requirements in the Compensation—Stock Compensation Topic of the Accounting Standards Codification related to changes to the terms or conditions of a share-based payment award. The amendments provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting. The amendments were effective for the Company for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. The Company adopted the amendments during the period ended March 31, 2018. These amendments did not have a material effect on the Company’s financial statements.

41

ASU 2017-12, Derivatives and Hedging:  Targeted Improvements to Accounting for Hedging Activities

In August 2017, the FASB amended the requirements of the Derivatives and Hedging Topic of the Accounting Standards Codification to improve the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. The amendments will be effective for the Company for interim and annual periods beginning after December 15, 2018. Early adoption is permitted. The Company adopted this standard December 1, 2017.  There was no material effect on the financial statements.

ASU 2018-02, Income Statement: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income

In February 2018, the FASB Issued (2018-02), Income Statement (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows Companies to reclassify the stranded effects in other comprehensive income to retained earnings as a result of the change in the tax rates under the Tax Reform Act. During the period ended December 31, 2017, the Company opted to early adopt this pronouncement by retrospective application to each period in which the effect of the change in the tax rate under the Tax Reform Act is recognized. The Company made an election to reclassify income tax effects of the Tax Reform Act, amounting to approximately $259,000, from accumulated other comprehensive income to retained earnings. The impact of the reclassification from other comprehensive income to retained earnings was included in the Statement of Changes in Shareholders’ Equity for the year ended December 31, 2017.

(g) Impact of Inflation

The consolidated financial statements and related consolidated financial data presented herein have been prepared in accordance with U.S. GAAP and practices within the banking industry which require the measurement of financial position and operating results in terms of historical dollars without considering the changes in the relative purchasing power of money over time due to inflation. Unlike most industrial companies, virtually all the assets and liabilities of a financial institution are monetary in nature. As a result, interest rates have a more significant impact on a financial institution's performance than the effects of general levels of inflation.

Item 3. Quantitative and Qualitative Disclosures about Market Risk.

Information required by this item is included in Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Interest Rate Simulation Sensitivity Analysis.”

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

The Company, with the participation of its management, including its Chief Executive Officer and Chief Financial Officer, carried out an evaluation of the effectiveness of the design and operation of its disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this Report.  Based upon that evaluation, the Company’s Chief Executive Officer and Chief Financial Officer concluded that, as of the end of the period covered by this Report, the Company’s disclosure controls and procedures were effective to ensure that information required to be disclosed in the Company’s filings under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms and to ensure that such information is accumulated and communicated to the Company’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

There have been no changes in the Company’s internal control over financial reporting that occurred during the period covered by this Report that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

General

From time to time, the Company is party to legal actions that are routine and incidental to its business.  Given the nature, scope and complexity of the extensive legal and regulatory landscape applicable to the Company’s business, including laws and regulations governing consumer protection, fair lending, fair labor, privacy, information security and anti-money laundering and anti-terrorism laws, the Company, like all banking organizations, is subject to heightened legal and regulatory compliance and litigation risk.  However, based upon available information and in consultation with legal counsel, management does not expect the ultimate disposition of any or a combination of these actions to have a material adverse effect on the Company’s assets, business, cash flow, condition (financial or otherwise), liquidity, prospects and\or results of operations.

Litigation Against Gaylon M. Lawrence & The Lawrence Group

On October 31, 2017, CapStar filed a complaint, captioned CapStar Financial Holdings, Inc. v. Gaylon M. Lawrence & The Lawrence Group, Case No. 3:17-cv-01421, in the U.S. District Court for the Middle District of Tennessee, in connection with Mr. Lawrence and The Lawrence Group’s acquisition of CapStar stock. The complaint alleges that defendants violated Section 13(d) of the Securities Exchange Act of 1934 by filing materially false and misleading Schedules 13D regarding defendants’ acquisition of a minority stake (1,156,675 shares) of CapStar stock. It also alleged that defendants violated the Change in Bank Control Act, 12 U.S.C. § 1817(j), by attempting to acquire control of CapStar without first receiving approval from the Federal Reserve, and also that defendants violated Tennessee Code Section 45-2-107 by controlling banks without having registered as a bank holding company.  

By order dated December 18, 2017, the court granted CapStar’s motion for expedited discovery, which is presently underway. Defendants have filed a motion to dismiss the action as well as a separate motion to stay.  The motion to stay was denied by the court, and the motion to dismiss remains pending.

Mr. Lawrence has also filed an Interagency Notice of Change in Control pursuant to the Change in Bank Control Act with the Federal Reserve on October 30, 2017, seeking permission to acquire up to 15% of the outstanding voting shares of CapStar’s common stock. Following two extensions of the processing of this notice, at the Federal Reserve’s direction, on March 13, 2018, Mr. Lawrence requested that the Federal Reserve suspend processing of this notice.

Item 1A. Risk Factors

In evaluating an investment in the Company’s securities, investors should consider carefully, among other things, information under the heading “Cautionary Note Regarding Forward-Looking Statements” in this Report as well as those factors that are detailed from time to time in the Company’s periodic and current reports filed with the SEC, including those factors included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 under the heading “Item 1A. Risk Factors” and in the Company’s Quarterly Reports on Form 10-Q and Current Reports on Form 8-K.

There have been no material changes from the risk factors previously disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Unregistered Sales of Equity Securities

The following table shows information relating to the repurchase of shares of common stock by the Company during the three months ended June 30, 2018.

	Total number of shares purchased (1)		Average price paid per share		Total number of shares purchased as part of publicly announced plan		Maximum number of shares that may yet be purchased under the plan
April 1 - April 30		2,703	$	18.58		—		—
May 1 - May 31		7,064		19.24		—		—
June 1 - June 30		18,537		19.83		—		—
Total		28,304	$	19.56		—		—

_____________________________________________

(1) Activity represents shares of stock withheld to pay taxes due upon vesting of restricted shares and exercise of stock options.

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Use of Proceeds

On September 27, 2016, the Company sold 1,688,049 shares of its common stock, including 387,750 shares purchased by the underwriters pursuant to the full exercise of their purchase option, in its initial public offering (“IPO”).  In addition, certain selling shareholders participated in the IPO and sold an aggregate of 1,284,701 shares of the Company’s common stock.    

The shares were sold at a public offering price of $15.00 per share, resulting in aggregate gross proceeds of approximately $44.6 million. The aggregate offering price for the shares sold by the Company was approximately $25.3 million, and after deducting approximately $1.6 million for the underwriting discount and approximately $1.7 million of offering expenses paid to third parties, the Company received net proceeds of approximately $21.9 million.  The aggregate offering price for the shares sold by the selling shareholders was approximately $19.3 million.

All of the shares were sold pursuant to our Registration Statement on Form S-1, as amended (File No. 333-213367), which was declared effective by the SEC on September 21, 2016. The offering did not terminate until all of the shares offered were sold.  The Company made no payments to its directors, officers or persons owning ten percent or more of its common stock or to their associates, or to its affiliates in connection with the issuance and sale of the common stock.  Keefe, Bruyette & Woods, Inc. and Sandler O’Neill & Partners, L.P. acted as lead book-running managers for the IPO. Our common stock is currently trading on the Nasdaq Global Select Market under the symbol “CSTR.”

There has been no material change in the planned use of proceeds from our IPO as described in our prospectus filed with the SEC on September 23, 2016 pursuant to Rule 424(b)(4) under the Securities Act.   Pending application of the IPO proceeds, we have investedthe net proceeds in short-term investments.

Item 6. Exhibits

Exhibit Number	Description
2.1	Agreement and Plan of Merger, dated as of June 11, 2018, by and between CapStar Financial Holdings, Inc. and Athens Bancshares Corporation.
31.1	Certification of Chief Executive Officer of CapStar Financial Holdings, Inc. pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended, adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, as amended.*
31.2	Certification of Chief Financial Officer of CapStar Financial Holdings, Inc. pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended, adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, as amended.*
32.1	Certification of Chief Executive Officer of CapStar Financial Holdings, Inc. pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, as amended.**
32.2	Certification of Chief Financial Officer of CapStar Financial Holdings, Inc. pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, as amended.**
101.INS	XBRL Instance Document.*
101.SCH	XBRL Taxonomy Extension Schema Document.*
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document.*
101.LAB	XBRL Taxonomy Extension Label Linkbase Document.*
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document.*
101.DEF	XBRL Taxonomy Extension Definition Document.*

* Filed with this Quarterly Report on Form 10-Q.

**      Furnished with this Quarterly Report on Form 10-Q.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	CAPSTAR FINANCIAL HOLDINGS, INC.
By:	/s/ Robert B. Anderson
	Robert B. Anderson
	Chief Financial Officer and Chief Administrative Officer

Date:  July 31, 2018

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EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13A-14(A) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Claire W. Tucker, certify that:

1. I have reviewed this quarterly report on Form 10-Q of CapStar Financial Holdings, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 31, 2018

By:	/s/ Claire W. Tucker
	Claire W. Tucker
	President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO RULE 13A-14(A) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED, ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Robert B. Anderson, certify that:

1. I have reviewed this quarterly report on Form 10-Q of CapStar Financial Holdings, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:  July 31, 2018

By:	/s/ Robert B. Anderson
	Robert B. Anderson
	Chief Financial Officer and
	Chief Administrative Officer

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of CapStar Financial Holdings, Inc. (the “Company”) for the period ended June 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Claire W. Tucker, President and Chief Executive Officer of the Company, certify in my capacity as an officer of the Company, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1. The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities and Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: July 31, 2018

By:	/s/ Claire W. Tucker
	Claire W. Tucker
	President and Chief Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of CapStar Financial Holdings, Inc. (the “Company”) for the period ended June 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Robert B. Anderson, Chief Financial Officer and Chief Administrative Officer of the Company, certify in my capacity as an officer of the Company, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1. The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities and Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: July 31, 2018

By:	/s/ Robert B. Anderson
	Robert B. Anderson
	Chief Financial Officer and
	Chief Administrative Officer

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 30, 2018
Document And Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Trading Symbol	CSTR
Entity Registrant Name	CAPSTAR FINANCIAL HOLDINGS, INC.
Entity Central Index Key	0001676479
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Voting
Document And Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		11,850,622
Nonvoting
Document And Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		132,561

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Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets
Cash and due from banks	$ 14,185	$ 9,506
Interest-bearing deposits in financial institutions	32,965	68,572
Federal funds sold	11,072	4,719
Total cash and cash equivalents	58,222	82,797
Securities available-for-sale, at fair value	183,364	192,621
Securities held-to-maturity, fair value of $3,798, and $3,848 at June 30, 2018 and December 31, 2017, respectively	3,746	3,759
Loans held for sale	65,320	74,093
Loans	1,046,525	947,537
Less allowance for loan losses	(14,705)	(13,721)
Loans, net	1,031,820	933,816
Premises and equipment, net	5,831	5,884
Restricted equity securities	8,809	8,806
Accrued interest receivable	4,347	4,084
Goodwill	6,219	6,219
Core deposit intangible	3	23
Other assets	33,500	32,327
Total assets	1,401,181	1,344,429
Deposits:
Non-interest-bearing	223,579	301,742
Interest-bearing	291,765	274,681
Savings and money market accounts	422,425	367,246
Time	207,244	176,197
Total deposits	1,145,013	1,119,866
Federal Home Loan Bank advances	95,000	70,000
Other liabilities	8,022	7,617
Total liabilities	1,248,035	1,197,483
Shareholders’ equity:
Series A convertible preferred stock, $1 par value; 5,000,000 shares authorized; 878,049 shares issued and outstanding at June 30, 2018 and December 31, 2017	878	878
Additional paid-in capital	120,555	118,120
Retained earnings	25,086	18,892
Accumulated other comprehensive loss, net of income tax	(5,305)	(2,527)
Total shareholders’ equity	153,146	146,946
Total liabilities and shareholders’ equity	1,401,181	1,344,429
Voting
Shareholders’ equity:
Common stock	11,799	11,450
Nonvoting
Shareholders’ equity:
Common stock	$ 133	$ 133

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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Securities held to maturity, fair value	$ 3,798	$ 3,848
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	878,049	878,049
Preferred stock, shares outstanding	878,049	878,049
Voting
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	11,798,570	11,449,465
Common stock, shares outstanding	11,798,570	11,449,465
Nonvoting
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	5,000,000	5,000,000
Common stock, shares issued	132,561	132,561
Common stock, shares outstanding	132,561	132,561

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Consolidated Statements of Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest income:
Loans, including fees	$ 13,796	$ 11,373	$ 26,030	$ 21,840
Securities:
Taxable	939	983	1,815	1,987
Tax-exempt	261	317	546	642
Federal funds sold	19	16	39	18
Restricted equity securities	128	86	257	163
Interest-bearing deposits in financial institutions	211	115	411	219
Total interest income	15,354	12,890	29,098	24,869
Interest expense:
Interest-bearing deposits	892	586	1,646	1,204
Savings and money market accounts	1,413	773	2,418	1,587
Time deposits	834	574	1,483	1,046
Federal funds purchased	1	7	1	11
Federal Home Loan Bank advances	627	379	1,117	519
Total interest expense	3,767	2,319	6,665	4,367
Net interest income	11,587	10,571	22,433	20,502
Provision for loan losses	169	9,690	846	13,094
Net interest income after provision for loan losses	11,418	881	21,587	7,408
Noninterest income:
Net gain on sale of securities	3	40	3	34
Tri-Net fees	325	297	853	382
Other noninterest income	442	430	902	703
Total noninterest income	2,765	2,666	5,854	4,799
Noninterest expense:
Salaries and employee benefits	6,340	4,784	12,598	9,870
Data processing and software	810	711	1,608	1,331
Professional fees	344	350	819	714
Occupancy	535	539	1,056	987
Equipment	602	544	1,141	1,040
Regulatory fees	233	301	436	608
Merger related expenses	335		335
Other operating	806	988	1,593	2,042
Total noninterest expense	10,005	8,217	19,586	16,592
Income (loss) before income taxes	4,178	(4,670)	7,855	(4,385)
Income tax expense (benefit)	665	(1,328)	1,148	(1,375)
Net income (loss)	$ 3,513	$ (3,342)	$ 6,707	$ (3,010)
Per share information:
Basic net income (loss) per share of common stock	$ 0.30	$ (0.30)	$ 0.57	$ (0.27)
Diluted net income (loss) per share of common stock	$ 0.27	$ (0.26)	$ 0.52	$ (0.24)
Weighted average shares outstanding:
Basic	11,845,822	11,226,216	11,755,535	11,218,624
Diluted	13,067,223	12,740,104	13,021,744	12,761,989
Treasury Management And Other Deposit Service Charges
Noninterest income:
Noninterest income:	$ 427	$ 342	$ 829	$ 670
Loan Commitment Fees
Noninterest income:
Noninterest income:	185	187	572	423
Mortgage Banking Income
Noninterest income:
Noninterest income:	$ 1,383	$ 1,370	$ 2,695	$ 2,587

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Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 3,513	$ (3,342)	$ 6,707	$ (3,010)
Unrealized gains (losses) on securities available-for-sale:
Unrealized holding gains (losses) arising during the period	(573)	1,333	(4,927)	1,908
Reclassification adjustment for (gains) losses included in net income	(3)	(40)	(3)	(34)
Tax effect	151	(495)	1,289	(717)
Net of tax	(425)	798	(3,641)	1,157
Unrealized losses on securities transferred to held-to-maturity:
Reclassification adjustment for losses included in net income		42	14	83
Tax effect		(16)	(4)	(32)
Net of tax		26	10	51
Unrealized gains (losses) on cash flow hedges:
Unrealized holding gains (losses) arising during the period	144	(211)	567	(213)
Reclassification adjustment for (gains) losses included in net income	224	158	475	313
Tax effect	(54)	81	(189)	82
Net of tax	314	28	853	182
Other comprehensive income (loss)	(111)	852	(2,778)	1,390
Comprehensive income (loss)	$ 3,402	$ (2,490)	$ 3,929	$ (1,620)

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Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock,Voting	Common Stock,Nonvoting	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2016	$ 139,207	$ 878	$ 11,205		$ 116,143	$ 17,132	$ (6,151)
Beginning balance, shares at Dec. 31, 2016			11,204,515
Issuance of restricted common stock, net of forfeitures and withholdings to satisfy employee tax obligations	(211)		$ 4		(215)
Issuance of restricted common stock, net of forfeitures and withholdings to satisfy employee tax obligations, shares			4,244
Stock-based compensation expense	484				484
Excess tax benefit from stock compensation	80		$ 15		65
Excess tax benefit from stock compensation, shares			15,117
Exercise of common stock warrants	90		$ 11		79
Exercise of common stock warrants, shares			11,379
Net income (loss)	(3,010)					(3,010)
Other comprehensive income (loss)	1,390						1,390
Ending balance at Jun. 30, 2017	138,030	878	$ 11,235		116,556	14,122	(4,761)
Ending balance, shares at Jun. 30, 2017			11,235,255
Beginning balance at Dec. 31, 2017	146,946	878	$ 11,450	$ 133	118,120	18,892	(2,527)
Beginning balance, shares at Dec. 31, 2017			11,449,465	132,561
Issuance of restricted common stock, net of forfeitures and withholdings to satisfy employee tax obligations	(353)		$ 30		(383)
Issuance of restricted common stock, net of forfeitures and withholdings to satisfy employee tax obligations, shares			30,148
Stock-based compensation expense	630				630
Exercise of employee common stock options	$ 1,197		$ 168		1,029
Exercise of employee common stock options, shares	218,642		168,372
Exercise of common stock warrants	$ 1,310		$ 151		1,159
Exercise of common stock warrants, shares			150,585
Common and preferred dividends declared	(513)					(513)
Net income (loss)	6,707					6,707
Other comprehensive income (loss)	(2,778)						(2,778)
Ending balance at Jun. 30, 2018	$ 153,146	$ 878	$ 11,799	$ 133	$ 120,555	$ 25,086	$ (5,305)
Ending balance, shares at Jun. 30, 2018			11,798,570	132,561

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Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income (loss)	$ 6,707,000	$ (3,010,000)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Provision for loan losses	846,000	13,094,000
Accretion of discounts on acquired loans and deferred fees	(653,000)	(274,000)
Depreciation and amortization	205,000	232,000
Net amortization of premiums on investment securities	541,000	663,000
Net gain on sale of securities	(3,000)	(34,000)
Tri-Net fees	(853,000)	(382,000)
Net gain on sale of loans		(66,000)
Net loss on disposal of premises and equipment		137,000
Stock-based compensation	630,000	484,000
Deferred income tax expense	124,000	402,000
Origination of loans held for sale	(261,924,000)	(267,954,000)
Proceeds from loans held for sale	274,245,000	239,527,000
Net increase in accrued interest receivable and other assets	(464,000)	(3,107,000)
Net increase (decrease) in accrued interest payable and other liabilities	934,000	(3,108,000)
Net cash provided by (used in) operating activities	17,640,000	(25,983,000)
Activities in securities available-for-sale:
Purchases	(11,708,000)	(11,754,000)
Sales	5,778,000	29,968,000
Maturities, prepayments and calls	9,746,000	9,762,000
Activities in securities held-to-maturity:
Maturities, prepayments and calls		451,000
Purchase of restricted equity securities	(3,000)	(2,260,000)
Net increase in loans	(98,197,000)	(73,366,000)
Purchase of premises and equipment	(132,000)	(1,060,000)
Proceeds from the sale of premises and equipment		3,000
Net cash used in investing activities	(94,516,000)	(48,256,000)
Cash flows from financing activities:
Net increase (decrease) in deposits	25,147,000	(7,738,000)
Proceeds from Federal Home Loan Bank advances	80,000,000	60,000,000
Payments on Federal Home Loan Bank advances	(55,000,000)	(10,000,000)
Exercise of common stock options and warrants, net of repurchase of restricted shares	2,154,000	(41,000)
Net cash provided by financing activities	52,301,000	42,221,000
Net decrease in cash and cash equivalents	(24,575,000)	(32,018,000)
Cash and cash equivalents at beginning of period	82,797,000	80,111,000
Cash and cash equivalents at end of period	58,222,000	48,093,000
Supplemental disclosures of cash paid:
Interest paid	6,452,000	4,293,000
Income taxes	176,000	2,813,000
Supplemental disclosures of noncash transactions:
Loans charged off to the allowance for loan losses	251,000	12,369,000
Mortgage Banking Income
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Mortgage banking income	$ (2,695,000)	$ (2,587,000)

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Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

NOTE 1 – SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying unaudited consolidated financial statements as of and for the period ended June 30, 2018 include CapStar Financial Holdings, Inc. and its wholly owned subsidiary, CapStar Bank (the “Bank”, together referred to as the “Company”). Significant intercompany transactions and accounts are eliminated in consolidation.

The accompanying unaudited consolidated financial statements have been prepared in accordance with instructions to Form 10-Q and do not include all information and footnotes required by U.S. generally accepted accounting principles (“U.S. GAAP”) for complete financial statements. All adjustments consisting of normally recurring accruals that, in the opinion of management, are necessary for a fair presentation of the financial position and results of operations for the periods presented have been included.  These unaudited consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements and related notes appearing in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses, determination of impairment of intangible assets, including goodwill, the valuation of our investment portfolio, deferred tax assets and estimated liabilities.  There have been no significant changes to the Company’s critical accounting policies as disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

Subsequent Events

Accounting Standards Codification (“ASC”) 855, Subsequent Events, establishes general standards of accounting for and disclosure of events that occur after the balance sheet date but before financial statements are issued. The Company evaluated all events or transactions that occurred after June 30, 2018 through the date of the issued financial statements.

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Securities

6 Months Ended

Jun. 30, 2018

Investments Debt And Equity Securities [Abstract]

Securities

NOTE 2 – SECURITIES

The amortized cost and fair value of securities available-for-sale and held-to-maturity at June 30, 2018 and December 31, 2017 are summarized as follows (dollars in thousands):

	June 30, 2018									December 31, 2017
	Amortized Cost		Gross unrealized gains		Gross unrealized (losses)			Estimated fair value		Amortized Cost		Gross unrealized gains		Gross unrealized (losses)			Estimated fair value
Securities available-for-sale:
U. S. government agency securities	$	11,250	$	—	$	(488	)	$	10,762	$	11,433	$	12	$	(168	)	$	11,277
State and municipal securities		45,447		298		(1,413	)		44,332		51,790		1,430		(222	)		52,998
Mortgage-backed securities		106,495		—		(4,058	)		102,437		108,236		40		(1,714	)		106,562
Asset-backed securities		15,968		21		(23	)		15,966		16,575		—		(198	)		16,377
Other debt securities		9,873		61		(67	)		9,867		5,326		81		—			5,407
Total	$	189,033	$	380	$	(6,049	)	$	183,364	$	193,360	$	1,563	$	(2,302	)	$	192,621
Securities held-to-maturity:
State and municipal securities	$	3,746	$	55	$	(3	)	$	3,798	$	3,759	$	89	$	—		$	3,848
Total	$	3,746	$	55	$	(3	)	$	3,798	$	3,759	$	89	$	—		$	3,848

Security fair values are established by an independent pricing service as of the dates indicated. The difference between amortized cost and fair value reflects current interest rates and represents the potential gain (loss) had the portfolio been liquidated on those dates. Security gains (losses) are realized only in the event of dispositions prior to maturity or other-than-temporary impairment. Securities with unrealized losses as of June 30, 2018 and December 31, 2017, and the length of time they were in continuous loss positions as of such dates are as follows (dollars in thousands):

	Less than 12 months					12 months or more					Total
June 30, 2018	Estimated fair value		Gross unrealized losses			Estimated fair value		Gross unrealized losses			Estimated fair value		Gross unrealized losses
U. S. government agency securities	$	7,110	$	(240	)	$	3,652	$	(248	)	$	10,762	$	(488	)
State and municipal securities		27,726		(1,074	)		3,970		(342	)		31,696		(1,416	)
Mortgage-backed securities		36,012		(1,034	)		66,425		(3,024	)		102,437		(4,058	)
Asset-backed securities		—		—			7,536		(23	)		7,536		(23	)
Other debt securities		5,505		(67	)		—		—			5,505		(67	)
Total temporarily impaired securities	$	76,353	$	(2,415	)	$	81,583	$	(3,637	)	$	157,936	$	(6,052	)
December 31, 2017
U. S. government agency securities	$	7,375	$	(90	)	$	1,912	$	(78	)	$	9,287	$	(168	)
State and municipal securities		7,490		(106	)		5,798		(116	)		13,288		(222	)
Mortgage-backed securities		29,832		(322	)		67,813		(1,392	)		97,645		(1,714	)
Asset-backed securities		—		—			16,377		(198	)		16,377		(198	)
Other debt securities		—		—			—		—			—		—
Total temporarily impaired securities	$	44,697	$	(518	)	$	91,900	$	(1,784	)	$	136,597	$	(2,302	)

As noted in the table above, as of June 30, 2018, the Company had unrealized losses of $6.1 million in its investment securities portfolio. The unrealized losses associated with these investment securities are driven by changes in interest rates and are recorded as a component of equity. These investment securities will continue to be monitored as a part of our ongoing impairment analysis. Management evaluates the financial performance of the issuers on a quarterly basis to determine if it is probable that the issuers can make all contractual principal and interest payments. If a shortfall in future cash flows is identified, a credit loss will be deemed to have occurred and will be recognized as a charge to earnings and a new cost basis for the security will be established.

Because the Company currently does not intend to sell any investment securities that have an unrealized loss at June 30, 2018, and it is not more-likely-than-not that we will be required to sell these investment securities before recovery of their amortized cost bases, which may be at maturity, we do not consider these securities to be other-than-temporarily impaired at June 30, 2018.

Securities with a market value of $118.4 million at June 30, 2018 were pledged to collateralize public deposits, derivative positions and Federal Home Loan Bank advances.

Results from sales of debt and equity securities were as follows (dollars in thousands):

	Six Months Ended			Six Months Ended
	June 30, 2018			June 30, 2017
Proceeds	$	5,778		$	29,968
Gross gains		107			110
Gross losses		(104	)		(76	)

The amortized cost and fair value of securities at June 30, 2018, by contractual maturity, are shown below (dollars in thousands). Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately.

	Available-for-sale				Held-to-maturity
	Amortized cost		Estimated fair value		Amortized cost		Estimated fair value
Due in less than one year	$	1,849	$	1,846	$	—	$	—
Due one to five years		20,577		20,673		3,746		3,798
Due five to ten years		28,854		28,023		—		—
Due beyond ten years		15,290		14,419		—		—
Mortgage-backed securities		106,495		102,437		—		—
Asset-backed securities		15,968		15,966		—		—
Total	$	189,033	$	183,364	$	3,746	$	3,798

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Loans and Allowance for Loan Losses

6 Months Ended

Jun. 30, 2018

Receivables [Abstract]

Loans and Allowance for Loan Losses

NOTE 3 – LOANS AND ALLLOWANCE FOR LOAN LOSSES

A summary of the loan portfolio as of June 30, 2018 and December 31, 2017 follows (dollars in thousands):

	June 30, 2018			December 31, 2017
Commercial real estate	$	408,244		$	350,622
Consumer real estate		109,915			102,581
Construction and land development		96,580			82,586
Commercial and industrial		386,065			373,248
Consumer		9,671			6,862
Other		36,429			31,983
Total		1,046,904			947,882
Less net unearned income		(379	)		(345	)
Total loans		1,046,525			947,537
Allowance for loan losses		(14,705	)		(13,721	)
Total loans, net	$	1,031,820		$	933,816

The adequacy of the allowance for loan losses (ALL) is assessed at the end of each quarter. The ALL includes a specific component related to loans that are individually evaluated for impairment and a general component related to loans that are segregated into homogenous pools and collectively evaluated for impairment.  The ALL factors applied to these pools are an estimate of probable incurred losses based on management’s evaluation of historical net losses from loans with similar characteristics, which are adjusted by management to reflect current events, trends, and conditions. The adjustments include consideration of the following:  changes in lending policies and procedures, economic conditions, nature and volume of the portfolio, experience of lending management, volume and severity of past due loans, quality of the loan review system, value of underlying collateral for collateral dependent loans, concentrations, and other external factors.

The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. The Company analyzes all commercial loans, and consumer relationships with an outstanding balance greater than $500,000, individually and assigns each loan a risk rating. This analysis is performed on a continual basis by the relationship managers and credit department personnel. On at least an annual basis an independent party performs a formal credit risk review of a sample of the loan portfolio. Among other things, this review assesses the appropriateness of the loan’s risk rating. The Company uses the following definitions for risk ratings:

Special Mention – A special mention asset possesses deficiencies or potential weaknesses deserving of management’s attention. If uncorrected, such weaknesses or deficiencies may expose the Company to an increased risk of loss in the future.

Substandard – A substandard asset is inadequately protected by the current sound net worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if deficiencies are not corrected. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual assets classified substandard.

Doubtful – A doubtful asset has all weaknesses inherent in one classified substandard, with the added characteristic that weaknesses make collection or liquidation in full, on the basis of existing facts, conditions, and values, highly questionable and improbable. The probability of loss is extremely high, but certain important and reasonable specific pending factors which may work to the advantage and strengthening of the asset exist, therefore, its classification as an estimated loss is deferred until a more exact status may be determined. Pending factors include proposed merger, acquisition or liquidation procedures, capital injection, perfecting liens on additional collateral, and refinancing plans.

Loans not falling into the criteria above are considered to be pass-rated loans. The Company utilizes six loan grades within the pass risk rating.

The following tables present the loan balances by category as well as risk rating (dollars in thousands):

	Non-impaired Loans
June 30, 2018	Pass/Watch		Special Mention		Substandard		Total Non-impaired		TotalImpaired Loans		Total
Commercial real estate	$	405,003	$	—	$	2,068	$	407,071	$	1,173	$	408,244
Consumer real estate		109,689		—		226		109,915		—		109,915
Construction and land development		96,580		—		—		96,580		—		96,580
Commercial and industrial		371,917		2,395		6,334		380,646		5,419		386,065
Consumer		9,671		—		—		9,671		—		9,671
Other		36,429		—		—		36,429		—		36,429
Total	$	1,029,289	$	2,395	$	8,628	$	1,040,312	$	6,592	$	1,046,904
December 31, 2017
Commercial real estate	$	349,415	$	—	$	—	$	349,415	$	1,207	$	350,622
Consumer real estate		102,571		—		10		102,581		—		102,581
Construction and land development		82,586		—		—		82,586		—		82,586
Commercial and industrial		349,494		11,193		11,073		371,760		1,488		373,248
Consumer		6,849		—		13		6,862		—		6,862
Other		31,983		—		—		31,983		—		31,983
Total	$	922,898	$	11,193	$	11,096	$	945,187	$	2,695	$	947,882

None of the Company’s loans had a risk rating of “Doubtful” as of June 30, 2018 or December 31, 2017.

The following tables detail the changes in the ALL for the three and six months ended June 30, 2018 and 2017 (dollars in thousands):

	Commercial real estate		Consumer real estate		Construction and land development			Commercial and industrial			Consumer			Other			Total
Three Months Ended June 30, 2018
Balance, beginning of period	$	3,512	$	1,036	$	1,742		$	7,798		$	122		$	353		$	14,563
Charged-off loans		—		—		—			(79	)		(12	)		—			(91	)
Recoveries		6		1		—			53			4			—			64
Provision for loan losses		33		20		22			7			6			81			169
Balance, end of period	$	3,551	$	1,057	$	1,764		$	7,779		$	120		$	434		$	14,705
Three Months Ended June 30, 2017
Balance, beginning of period	$	3,257	$	1,048	$	1,090		$	8,013		$	60		$	529		$	13,997
Charged-off loans				—		—			(11,244	)		—			—			(11,244	)
Recoveries		—		1		—			—			10			—			11
Provision for loan losses		276		32		(179	)		9,626			(13	)		(52	)		9,690
Balance, end of period	$	3,533	$	1,081	$	911		$	6,395		$	57		$	477		$	12,454

	Commercial real estate		Consumer real estate			Construction and land development			Commercial and industrial			Consumer			Other			Total
Six Months Ended June 30, 2018
Balance, beginning of period	$	3,324	$	1,063		$	1,628		$	7,209		$	91		$	406		$	13,721
Charged-off loans		—		—			—			(226	)		(25	)		—			(251	)
Recoveries		10		2			—			326			51			—			389
Provision for loan losses		217		(8	)		136			470			3			28			846
Balance, end of period	$	3,551	$	1,057		$	1,764		$	7,779		$	120		$	434		$	14,705
Six Months Ended June 30, 2017
Balance, beginning of period	$	2,655	$	1,013		$	1,574		$	5,618		$	76		$	698		$	11,634
Charged-off loans		—		—			—			(12,369	)		—			—			(12,369	)
Recoveries		—		1			—			3			91			—			95
Provision for loan losses		878		67			(663	)		13,143			(110	)		(221	)		13,094
Balance, end of period	$	3,533	$	1,081		$	911		$	6,395		$	57		$	477		$	12,454

A breakdown of the ALL and the loan portfolio by loan category at June 30, 2018 and December 31, 2017 follows (dollars in thousands):

	Commercial real estate		Consumer real estate		Construction and land development		Commercial and industrial		Consumer		Other		Total
June 30, 2018
Allowance for Loan Losses:
Collectively evaluated for impairment	$	3,551	$	1,057	$	1,764	$	6,104	$	120	$	434	$	13,030
Individually evaluated for impairment		—		—		—		1,675		—		—		1,675
Balances, end of period	$	3,551	$	1,057	$	1,764	$	7,779	$	120	$	434	$	14,705
Loans:
Collectively evaluated for impairment	$	407,071	$	109,915	$	96,580	$	380,646	$	9,671	$	36,429	$	1,040,312
Individually evaluated for impairment		1,173		—		—		5,419		—		—		6,592
Balances, end of period	$	408,244	$	109,915	$	96,580	$	386,065	$	9,671	$	36,429	$	1,046,904
December 31, 2017
Allowance for Loan Losses:
Collectively evaluated for impairment	$	3,324	$	1,063	$	1,628	$	7,109	$	91	$	406	$	13,621
Individually evaluated for impairment		—		—		—		100		—		—		100
Balances, end of period	$	3,324	$	1,063	$	1,628	$	7,209	$	91	$	406	$	13,721
Loans:
Collectively evaluated for impairment	$	349,415	$	102,581	$	82,586	$	371,760	$	6,862	$	31,983	$	945,187
Individually evaluated for impairment		1,207		—		—		1,488		—		—		2,695
Balances, end of period	$	350,622	$	102,581	$	82,586	$	373,248	$	6,862	$	31,983	$	947,882

The following table presents the allocation of the ALL for each respective loan category with the corresponding percentage of the ALL in each category to total loans, net of deferred fees as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	June 30, 2018					December 31, 2017
	Amount		Percent of total loans, net of deferred fees			Amount		Percent of total loans, net of deferred fees
Commercial real estate	$	3,551		0.34	%	$	3,324		0.35	%
Consumer real estate		1,057		0.10			1,063		0.11
Construction and land development		1,764		0.17			1,628		0.17
Commercial and industrial		7,779		0.75			7,209		0.76
Consumer		120		0.01			91		0.01
Other		434		0.04			406		0.04
Total allowance for loan losses	$	14,705		1.41	%	$	13,721		1.45	%

The following table presents the Company’s impaired loans that were evaluated for specific loss allowance as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	June 30, 2018						December 31, 2017
	Recorded investment		Unpaid principal balance		Related allowance		Recorded investment		Unpaid principal balance		Related allowance
With no related allowance recorded:
Commercial real estate	$	1,173	$	1,633	$	—	$	1,207	$	1,645	$	—
Consumer real estate		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—
Commercial and industrial		—		—		—		—		—		—
Consumer		—		—		—		—		—		—
Other		—		—		—		—		—		—
Subtotal		1,173		1,633		—		1,207		1,645		—
With an allowance recorded:
Commercial real estate		—		—		—		—		—		—
Consumer real estate		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—
Commercial and industrial		5,419		5,419		1,675		1,488		2,770		100
Consumer		—		—		—		—		—		—
Other		—		—		—		—		—		—
Subtotal		5,419		5,419		1,675		1,488		2,770		100
Total	$	6,592	$	7,052	$	1,675	$	2,695	$	4,415	$	100

The following table presents information related to the average recorded investment and interest income recognized on impaired loans for the three and six months ended June 30, 2018 and 2017 (dollars in thousands):

	Three Months Ended				Three Months Ended				Six Months Ended				Six Months Ended
	June 30, 2018				June 30, 2017				June 30, 2018				June 30, 2017
	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
With no related allowance recorded:
Commercial real estate	$	1,181	$	15	$	1,278	$	—	$	1,189	$	25	$	1,286	$	—
Consumer real estate		—		—		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—		—		—
Commercial and industrial		—		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—		—
Other		—		—		—		—		—		—		—		—
Subtotal		1,181		15		1,278		—		1,189		25		1,286		—
With an allowance recorded:
Commercial real estate		—		—		—		—		—		—		—		—
Consumer real estate		—		—		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—		—		—
Commercial and industrial		5,425		31		2,194		—		5,345		118		2,242		—
Consumer		—		—		—		—		—		—		—		—
Other		—		—		—		—		—		—		—		—
Subtotal		5,425		31		2,194		—		5,345		118		2,242		—
Total	$	6,606	$	46	$	3,472	$	—	$	6,534	$	143	$	3,528	$	—

Interest income recognized on a cash basis for impaired loans amounted to $15,000 and $25,000 for the three and six months ended June 30, 2018.  No interest income was recognized on a cash basis for impaired loans during the three or six months ended June 30, 2017.

The following table presents the aging of the recorded investment in past-due loans as of June 30, 2018 and December 31, 2017 by class of loans (dollars in thousands):

	30 - 59		60 - 89		Greater Than
	Days		Days		89 Days		Total		Loans Not
	Past Due		Past Due		Past Due		Past Due		Past Due		Total
June 30, 2018
Commercial real estate	$	472	$	—	$	—	$	472	$	407,772	$	408,244
Consumer real estate		27		—		216		243		109,672		109,915
Construction and land development		—		—		—		—		96,580		96,580
Commercial and industrial		—		30		—		30		386,035		386,065
Consumer		—		—		—		—		9,671		9,671
Other		—		—		—		—		36,429		36,429
Total	$	499	$	30	$	216	$	745	$	1,046,159	$	1,046,904
December 31, 2017
Commercial real estate	$	—	$	—	$	—	$	—	$	350,622	$	350,622
Consumer real estate		—		—		218		218		102,363		102,581
Construction and land development		—		—		—		—		82,586		82,586
Commercial and industrial		1,967		209		—		2,176		371,072		373,248
Consumer		—		—		13		13		6,849		6,862
Other		—		—		—		—		31,983		31,983
Total	$	1,967	$	209	$	231	$	2,407	$	945,475	$	947,882

The following table presents the recorded investment in non-accrual loans, past due loans over 90 days outstanding and accruing and troubled debt restructurings (“TDR”) by class of loans as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	Non-Accrual		Past Due Over 89 Days and Accruing		Troubled Debt Restructurings
June 30, 2018
Commercial real estate	$	—	$	—	$	1,173
Consumer real estate		—		216		—
Construction and land development		—		—		—
Commercial and industrial		5,419		—		—
Consumer		—		—		—
Other		—		—		—
Total	$	5,419	$	216	$	1,173
December 31, 2017
Commercial real estate	$	1,207	$	—	$	1,207
Consumer real estate		—		218		—
Construction and land development		—		—		—
Commercial and industrial		1,488		—		—
Consumer		—		13		—
Other		—		—		—
Total	$	2,695	$	231	$	1,207

As of June 30, 2018 and December 31, 2017, all loans classified as nonperforming were deemed to be impaired.

As of both June 30, 2018 and December 31, 2017, the Company had a recorded investment in TDR of $1.2 million. The Company had no specific allowance for those loans at June 30, 2018 or December 31, 2017 and there were no commitments to lend additional amounts.  Loans accounted for as TDR include modifications from original terms such as those due to bankruptcy proceedings, certain modifications of amortization periods or extended suspension of principal payments due to customer financial difficulties.  In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification.  This evaluation is performed under the Bank’s loan policy.  Loans accounted for as TDR are individually evaluated for impairment.

There were no TDR identified during the three or six months ended June 30, 2018 or 2017.  There were no TDR for which there was a payment default within twelve months following the modification during the three or six months ended June 30, 2018 or 2017.

A loan is considered to be in payment default once it is 30 days contractually past due under the modified terms.

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Federal Home Loan Bank Advances

6 Months Ended

Jun. 30, 2018

Federal Home Loan Banks [Abstract]

Federal Home Loan Bank Advances

NOTE 4 – FEDERAL HOME LOAN BANK ADVANCES

The Company had outstanding borrowings totaling of $95.0 million and $70.0 million at June 30, 2018 and December 31, 2017, respectively, via various advances. These advances are non-callable; interest payments are due monthly, with principal due at maturity.

The following is a summary of the contractual maturities and average effective rates of outstanding advances (dollars in thousands):

	June 30, 2018					December 31, 2017
Year	Amount		Interest Rates			Amount		Interest Rates
2018	$	95,000		2.06	%	$	70,000		1.66	%
2019		—		—			—		—
2020		—		—			—		—
2021		—		—			—		—
2022		—		—			—		—
Thereafter		—		—			—		—
Total	$	95,000		2.06	%	$	70,000		1.66	%

Advances from the FHLB are collateralized by investment securities with a market value of $3.9 million, FHLB stock and certain commercial and residential real estate mortgage loans totaling $423.5 million under a blanket mortgage collateral agreement.  At June 30, 2018, the amount of available credit from the FHLB totaled $89.4 million.

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Accumulated Other Comprehensive Income (Loss)

6 Months Ended

Jun. 30, 2018

Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]

Accumulated Other Comprehensive Income (Loss)

NOTE 5 – ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The following were changes in accumulated other comprehensive income (loss) by component, net of tax, for the six months ended June 30, 2018 and 2017 (dollars in thousands):

				Unrealized Gains			Unrealized
	Gains and			and Losses			Losses on
	Losses on			on Available			Securities
	Cash Flow			for Sale			Transferred to
	Hedges			Securities			Held to Maturity			Total
Six Months Ended June 30, 2018
Beginning Balance	$	(3,679	)	$	1,162		$	(10	)	$	(2,527	)
Other comprehensive income (loss) before    reclassification, net of tax		1,288			(3,639	)		1			(2,350	)
Amounts reclassified from accumulated other    comprehensive income (loss), net of tax		(435	)		(2	)		9			(428	)
Net current period other comprehensive income (loss)		853			(3,641	)		10			(2,778	)
Ending Balance	$	(2,826	)	$	(2,479	)	$	—		$	(5,305	)
Six Months Ended June 30, 2017
Beginning Balance	$	(4,241	)	$	(698	)	$	(1,212	)	$	(6,151	)
Other comprehensive income (loss) before     reclassification, net of tax		495			1,178			—			1,673
Amounts reclassified from accumulated other    comprehensive income (loss), net of tax		(313	)		(21	)		51			(283	)
Net current period other comprehensive income (loss)		182			1,157			51			1,390
Ending Balance	$	(4,059	)	$	459		$	(1,161	)	$	(4,761	)

The following were significant amounts reclassified out of each component of accumulated other comprehensive income (loss) for the three and six months ended June 30, 2018 and 2017 (dollars in thousands):

													Affected Line Item
Details about Accumulated Other	Three Months Ended June 30,						Six Months Ended June 30,						in the Statement Where
Comprehensive Income Components	2018			2017			2018			2017			Net Income is Presented
Unrealized losses on cash flow hedges	$	(111	)	$	(108	)	$	(218	)	$	(213	)	Interest expense - money market
		(113	)		(50	)		(257	)		(100	)	Interest expense - Federal Home Loan Bank advances
		16			—			40			—		Income tax benefit
	$	(208	)	$	(158	)	$	(435	)	$	(313	)	Net of tax
Unrealized gains (losses) on available-   for-sale securities	$	(3	)	$	(40	)	$	(3	)	$	(34	)	Net gain (loss) on sale of securities
		1			15			1			13		Income tax expense
	$	(2	)	$	(25	)	$	(2	)	$	(21	)	Net of tax
Unrealized losses on securities   transferred to held-to-maturity	$	—		$	42		$	14		$	83		Interest income - securities
		—			(16	)		(5	)		(32	)	Income tax benefit
	$	—		$	26		$	9		$	51		Net of tax

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Income Taxes

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Income Taxes

NOTE 6 – INCOME TAXES

The Company’s effective tax rate for the three and six months ended June 30, 2018 was 15.9% and 14.6% compared to (28.4)% and (31.4)% for the three and six months ended June 30, 2017.  In March 2016, the FASB issued guidance to simplify several aspects of the accounting for share-based payment award transactions, including income tax consequences. In addition to other changes, the guidance changes the accounting for excess tax benefits and tax deficiencies from generally being recognized in additional paid-in capital to recognition as income tax expense or benefit in the period they occur. The Company adopted the new guidance in the first quarter of 2017. As a result, the Company’s income tax expense was reduced by $277,000 and $640,000 for the three and six months ended June 30, 2018, respectively, and by $21,000 and $167,000 for the three and six months ended June 30, 2017, respectively.

On December 22, 2017, Public Law 115-97, informally referred to as the Tax Cuts and Jobs Act (the “Tax Reform Act”) was enacted into law. The Tax Reform Act provides for significant changes to the U.S. tax code that impact businesses. Effective January 1, 2018, the Tax Reform Act reduced the U.S. federal tax rate for corporations from 35% to 21% for U.S. taxable income.

The effective tax rate compared favorably to the statutory federal rate of 21% and Tennessee excise tax rate of 6.5% primarily due to investments in qualified municipal securities, company owned life insurance, state tax credits, net of the effect of certain non-deductible expenses and the recognition of excess tax benefits related to stock compensation.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2018

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

NOTE 7 – COMMITMENTS AND CONTINGENCIES

In the normal course of business, the Company has outstanding commitments and contingent liabilities, such as commitments to extend credit and standby letters of credit, which are not included in the accompanying financial statements. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instruments for commitments to extend credit and standby letters of credit is represented by the contractual or notional amount of those instruments. The Company uses the same credit policies in making such commitments as it does for instruments that are included in the balance sheet.

The following table sets forth outstanding financial instruments whose contract amounts represent credit risk as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	Contract or notional amount
	June 30, 2018		December 31, 2017
Financial instruments whose contract amounts represent    credit risk:
Unused commitments to extend credit	$	575,932	$	584,494
Standby letters of credit		10,047		11,552
Total	$	585,979	$	596,046

The Company is party to litigation and claims arising in the normal course of business. Management believes that the liabilities, if any, arising from such litigation and claims as of June 30, 2018, will not have a material impact on the financial statements of the Company.

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Derivatives

6 Months Ended

Jun. 30, 2018

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivatives

NOTE 8 – DERIVATIVES

The Company utilizes interest rate swap agreements as part of its asset liability management strategy to help manage its interest rate risk position. The notional amount of the interest rate swaps does not represent amounts exchanged by the parties. The amount exchanged is determined by reference to the notional amount and the other terms of the individual interest rate swap agreements.

Interest Rate Swaps Designated as Cash Flow Hedges

Forward starting interest rate swaps with notional amounts totaling $20 million as of June 30, 2018 and December 31, 2017 were designated as cash flow hedges of certain liabilities and were determined to be fully effective during all periods presented. As such, no amount of ineffectiveness has been included in net income. Therefore, the aggregate fair value of the swaps is recorded in other assets (liabilities) with changes in fair value recorded in other comprehensive income (loss). The amount included in accumulated other comprehensive income (loss) would be reclassified to current earnings should the hedges no longer be considered effective. The Company expects the hedges to remain fully effective during the remaining terms of the swaps.

Summary information about the interest-rate swaps designated as cash flow hedges was as follows (dollars in thousands):

	June 30, 2018			December 31, 2017
Notional amounts	$	20,000		$	20,000
Weighted average pay rates		3.54	%		3.54	%
Weighted average receive rates	3 monthLIBOR			3 month LIBOR
Weighted average maturity	5.0 years			5.5 years
Fair value	$	(653	)	$	(1,375	)
Amount of unrealized loss recognized in accumulated    other comprehensive income, net of tax	$	(482	)	$	(1,016	)

Pursuant to its interest rate swap agreements, the Company pledged collateral to the counterparties in the form of investment securities with a market value of $2.2 million at June 30, 2018. There was no collateral posted from the counterparties to the Company as of June 30, 2018. It is possible that the Company may need to post additional collateral in the future or that the counterparties may be required to post collateral to the Company in the future.

Other Interest Rate Swaps

The Company also enters into swaps to facilitate customer transactions and meet their financing needs.  Upon entering into these transactions the Company enters into offsetting positions with large U.S. financial institutions in order to minimize risk to the Company. A summary of the Company’s customer related interest rate swaps was as follows (dollars in thousands):

	June 30, 2018					December 31, 2017
	Notional		Estimated			Notional		Estimated
	amount		fair value			amount		fair value
Interest rate swap agreements:
Pay fixed/receive variable swaps	$	39,197	$	314		$	41,863	$	55
Pay variable/receive fixed swaps		39,197		(314	)		41,863		(55	)
Total	$	78,394	$	—		$	83,726	$	—

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Stock Options and Restricted Shares

6 Months Ended

Jun. 30, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Options and Restricted Shares

NOTE 9 - STOCK OPTIONS AND RESTRICTED SHARES

During 2008, the board of directors of the Bank approved the CapStar Bank 2008 Stock Incentive Plan. Following the formation of CapStar Financial Holdings, Inc. in 2016, and in connection with the Share Exchange, the outstanding awards of restricted stock and stock options under the CapStar Bank 2008 Stock Incentive Plan were exchanged for similar awards of restricted stock and stock options issued by CapStar Financial Holdings, Inc. under the CapStar Financial Holdings, Inc. Stock Incentive Plan (the “Plan”), which the board of directors adopted in 2016. The Stock Incentive Plan provides for the grant of stock-based incentives, including stock options, restricted stock units, performance awards and restricted stock, to employees, directors and service providers that are subject to forfeiture until vesting conditions have been satisfied by the award recipient under the terms of the award.  The Plan is intended to help align the interests of employees and our shareholders and reward our employees for improved Company performance.  The Plan reserved 1,569,475 shares of stock for issuance of stock incentives. In April 2018 the board of directors reserved an additional 400,000 shares of stock for issuance of stock incentives.  Stock incentives include both restricted share and stock option grants.  Total shares issuable under the plan were 506,435 at June 30, 2018.

The Company has recognized stock-based compensation expense, within salaries and employee benefits for employees, and within other non-interest expense for directors, in the consolidated statements of income as follows (dollars in thousands):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2018			2017			2018			2017
Stock-based compensation expense before income taxes	$	325		$	248		$	630		$	484
Less: deferred tax benefit		(85	)		(95	)		(165	)		(185	)
Reduction of net income	$	240		$	153		$	465		$	299

Restricted Shares

Compensation expense is recognized over the vesting period of the awards based on the fair value of the stock at the issue date. The fair value of each restricted stock grant is based on valuations performed by independent consultants. The recipients have the right to vote and receive dividends but cannot sell, transfer, assign, pledge, hypothecate, or otherwise encumber the restricted stock until the shares have vested. Restricted shares fully vest on the third anniversary of the grant date.  A summary of the changes in the Company’s nonvested restricted shares for the six months ended June 30, 2018 follows:

				Weighted
				Average
	Restricted			Grant Date
Nonvested Shares	Shares			Fair Value
Nonvested at beginning of period		187,253		$	14.21
Granted		53,869			19.11
Vested		(81,657	)		12.27
Forfeited		(5,437	)		16.52
Nonvested at end of period		154,028		$	16.87

As of June 30, 2018, there was $2.0 million of unrecognized compensation cost related to nonvested shares granted under the Plan.  The cost is expected to be recognized over a weighted-average period of 2.1 years.  The total fair value of shares vested during the six months ended June 30, 2018 and 2017 was $1.6 million and $0.6 million.

Stock Options

Option awards are generally granted with an exercise price equal to the fair value of the Company’s common stock at the date of grant.  Option awards generally have a four year vesting period and a ten year contractual term.

The fair value of each option grant is estimated on the date of grant using the Black Scholes option pricing model. There were no options granted in 2018 or 2017.

A summary of the activity in stock options for the six months ended June 30, 2018 follows:

						Weighted
				Weighted		Average
				Average		Remaining
				Exercise		Contractual
	Shares			Price		Term (years)
Outstanding at beginning of period		804,800		$	10.59
Granted		—			—
Exercised		(218,642	)		10.00
Forfeited or expired		—			—
Outstanding at end of period		586,158		$	10.82		2.5
Fully vested and expected to vest		583,633		$	10.81		2.3
Exercisable at end of period		558,658		$	10.75		2.3

Information related to stock options during each year follows:

	2018		2017
Intrinsic value of options exercised	$	2,081,344	$	240,570
Cash received from option exercises		2,186,420		257,500
Tax benefit realized from option exercises		544,063		92,114
Weighted average fair value of options granted		—		—

As of June 30, 2018, there was $0.1 million of unrecognized compensation cost related to nonvested stock options granted under the Plan.  The cost is expected to be recognized over a weighted-average period of 1.2 years.

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Regulatory Capital Requirements

6 Months Ended

Jun. 30, 2018

Banking And Thrift [Abstract]

Regulatory Capital Requirements

NOTE 10 – REGULATORY CAPITAL REQUIREMENTS

The Company and the Bank are subject to regulatory capital requirements administered by the Federal Reserve and the Bank is also subject to the regulatory capital requirements of the Tennessee Department of Financial Institutions. Failure to meet capital requirements can initiate certain mandatory – and possibly additional discretionary – actions by regulators that could, in that event, have a material adverse effect on the institutions’ financial statements. The relevant regulations require the Company and the Bank to meet specific capital adequacy guidelines that involve quantitative measures of their assets, liabilities and certain off-balance-sheet items as calculated under regulatory accounting principles. The capital classifications of the Company and the Bank are also subject to qualitative judgments by their regulators about components, risk weightings, and other factors. Those qualitative judgments could also affect the capital status of the Company and the Bank and the amount of dividends the Company and the Bank may distribute. The final rules implementing the Basel Committee on Banking Supervision’s capital guidelines for U.S. banks (Basel III rules) became effective for the Bank on January 1, 2015 with full compliance with all of the requirements being phased in over a multi-year schedule, and fully phased in by January 1, 2019. The net unrealized gain or loss on available for sale securities is not included in computing regulatory capital. Management believes as of June 30, 2018, the Company and the Bank met all regulatory capital adequacy requirements to which they are subject.

The Company’s and the Bank’s capital amounts and ratios as of June 30, 2018 and December 31, 2017 are presented in the following table (dollars in thousands).

	Actual					Minimum capital requirement (1)					Minimum to be well-capitalized (2)
	Amount		Ratio			Amount		Ratio			Amount		Ratio
At June 30, 2018:
Total capital to risk-weighted assets:
CapStar Financial Holdings, Inc.	$	166,409		12.45	%	$	106,945		8.00	%	N/A		N/A
CapStar Bank		150,773		11.28			106,907		8.00		$	133,634		10.00
Tier I capital to risk-weighted assets:
CapStar Financial Holdings, Inc.		151,525		11.33			80,209		6.00		N/A		N/A
CapStar Bank		135,889		10.17			80,181		6.00			106,907		8.00
Common equity Tier 1 capital to risk weighted    assets:
CapStar Financial Holdings, Inc.		142,525		10.66			60,157		4.50		N/A		N/A
CapStar Bank		119,389		8.93			60,135		4.50			86,862		6.50
Tier I capital to average assets:
CapStar Financial Holdings, Inc.		151,525		10.87			55,741		4.00		N/A		N/A
CapStar Bank		135,889		9.75			55,736		4.00			69,670		5.00
At December 31, 2017:
Total capital to risk-weighted assets:
CapStar Financial Holdings, Inc.	$	156,434		12.52	%	$	99,932		8.00	%	N/A		N/A
CapStar Bank		142,396		11.40			99,928		8.00		$	124,909		10.00
Tier I capital to risk-weighted assets:
CapStar Financial Holdings, Inc.		142,534		11.41			74,949		6.00		N/A		N/A
CapStar Bank		128,496		10.29			74,946		6.00			99,928		8.00
Common equity Tier 1 capital to risk weighted    assets:
CapStar Financial Holdings, Inc.		133,703		10.70			56,212		4.50		N/A		N/A
CapStar Bank		112,165		8.98			56,209		4.50			81,191		6.50
Tier I capital to average assets:
CapStar Financial Holdings, Inc.		142,534		10.77			53,218		4.00		N/A		N/A
CapStar Bank		128,496		9.71			53,215		4.00			66,519		5.00

(1) For the calendar year 2018, the Company must maintain a capital conservation buffer of Tier 1 common equity capital in excess of minimum risk-based capital ratios by at least 1.875% to avoid limits on capital distributions and certain discretionary bonus payments to executive officers and similar employees.

(2) For the Company to be well-capitalized, the Bank must be well-capitalized and the Company must not be subject to any written agreement, order, capital directive, or prompt corrective action directive issued by the Federal Reserve to meet and maintain a specific capital level for any capital measure.

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Earnings Per Share

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Earnings Per Share

NOTE 11 – EARNINGS PER SHARE

The following is a summary of the basic and diluted earnings per share calculation for the three and six months ended June 30, 2018 and 2017 (dollars in thousands, except share data):

	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2018		2017			2018		2017
Basic net income (loss) per share calculation:
Numerator – Net income (loss)	$	3,513	$	(3,342	)	$	6,707	$	(3,010	)
Denominator – Average common shares outstanding		11,845,822		11,226,216			11,755,535		11,218,624
Basic net income (loss) per share	$	0.30	$	(0.30	)	$	0.57	$	(0.27	)
Diluted net income (loss) per share calculation:
Numerator – Net income (loss)	$	3,513	$	(3,342	)	$	6,707	$	(3,010	)
Denominator – Average common shares outstanding		11,845,822		11,226,216			11,755,535		11,218,624
Dilutive shares contingently issuable		1,221,401		1,513,888			1,266,209		1,543,365
Average diluted common shares outstanding		13,067,223		12,740,104			13,021,744		12,761,989
Diluted net income (loss) per share	$	0.27	$	(0.26	)	$	0.52	$	(0.24	)

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Fair Value

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value

NOTE 12 – FAIR VALUE

Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair values:

Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.

Level 2: Significant observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.

Level 3: Significant unobservable inputs that reflect a reporting entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.

The Bank used the following methods and significant assumptions to estimate fair value:

Investment Securities: The fair values for investment securities are determined by quoted market prices, if available (Level 1). For securities where quoted prices are not available, fair values are calculated based on market prices of similar securities (Level 2), using matrix pricing. Matrix pricing is a mathematical technique commonly used to price debt securities that are not actively traded and, values debt securities by relying on quoted prices for the specific securities and the securities’ relationship to other benchmark quoted securities (Level 2 inputs). For securities where quoted prices or market prices of similar securities are not available, fair values are calculated using discounted cash flows or other market indicators (Level 3). See below for additional discussion of Level 3 valuation methodologies and significant inputs. The fair values of all securities are determined from third party pricing services without adjustment.

Derivatives-Interest Rate Swaps: The fair values of derivatives are based on valuation models using observable market data as of the measurement date (Level 2). The Bank’s derivatives are traded in an over-the-counter market where quoted market prices are not always available. Therefore, the fair values of derivatives are determined using quantitative models that utilize multiple market inputs. The inputs will vary based on the type of derivative, but could include interest rates, prices and indices to generate continuous yield or pricing curves, prepayment rates, and volatility factors to value the position. The majority of market inputs are actively quoted and can be validated through external sources, including brokers, market transactions and third-party pricing services.  The fair values of all interest rate swaps are determined from third party pricing services without adjustment.

Impaired Loans: The fair value of impaired loans with specific allocations of the allowance for loan losses is generally based on recent appraisals. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available for similar loans and collateral underlying such loans. Such adjustments result in a Level 3 classification of the inputs for determining fair value. Collateral may be valued using an appraisal, net book value per the borrower’s financial statements, or aging reports, adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and management’s expertise and knowledge of the client and client’s business, resulting in a Level 3 fair value classification. Impaired loans are evaluated on at least a quarterly basis for additional impairment and adjusted in accordance with the loan policy.

Other Real Estate Owned: Assets acquired through or instead of loan foreclosure are initially recorded at fair value less costs to sell when acquired, establishing a new cost basis. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. Fair value is commonly based on recent real estate appraisals which are updated no less frequently than annually. These appraisals may utilize a single valuation approach or a combination of approaches including comparable sales and the income approach with data from comparable properties. Adjustments are routinely made in the appraisal process by the independent appraisers to adjust for differences between the comparable sales and income data available. Appraisals may be adjusted or discounted based on management’s historical knowledge, changes in market conditions from the time of the valuation, and/or management’s expertise and knowledge of the collateral. Such adjustments result in a Level 3 classification of the inputs for determining fair value. Real estate owned properties are evaluated on a quarterly basis for additional impairment and adjusted accordingly.  The Company had no other real estate owned at June 30, 2018 or December 31, 2017.

Loans Held For Sale: Loans held for sale are carried at the lower of cost or fair value, which is evaluated on a pool-level basis. The fair value of loans held for sale is determined using quoted prices for similar assets, adjusted for specific attributes of that loan or other observable market data, such as outstanding commitments from third party investors (Level 2).  There were no loans held for sale carried at fair value at June 30, 2018 or December 31, 2017.

Assets and liabilities measured at fair value on a recurring basis are summarized below (dollars in thousands):

	Fair value measurements at June 30, 2018
				Quoted prices
				in active		Significant
				markets for		other			Significant
				identical		observable			unobservable
	Carrying			assets		inputs			inputs
	Value			(Level 1)		(Level 2)			(Level 3)
Assets:
Securities available-for-sale:
U.S. government-sponsored agencies	$	10,762		$	—	$	10,762		$	—
Obligations of states and political subdivisions		44,332			—		44,332			—
Mortgage-backed securities-residential		102,437			—		102,437			—
Asset-backed securities		15,966			—		15,966			—
Other debt securities		9,867			—		9,867			—
Total securities available-for-sale	$	183,364		$	—	$	183,364		$	—
Derivatives:
Interest rate swaps - customer related	$	669		$	—	$	669		$	—
Liabilities:
Derivatives:
Interest rate swaps - customer related	$	(669	)	$	—	$	(669	)	$	—
Interest rate swaps - cash flow hedges		(653	)		—		(653	)		—
Total derivatives	$	(1,322	)	$	—	$	(1,322	)	$	—

	Fair value measurements at December 31, 2017
				Quoted prices
				in active		Significant
				markets for		other			Significant
				identical		observable			unobservable
	Carrying			assets		inputs			inputs
	Value			(Level 1)		(Level 2)			(Level 3)
Assets:
Securities available-for-sale:
U.S. government-sponsored agencies	$	11,277		$	—	$	11,277		$	—
Obligations of states and political subdivisions		52,998			—		52,998			—
Mortgage-backed securities-residential		106,562			—		106,562			—
Asset-backed securities		16,377			—		16,377			—
Other debt securities		5,407			—		5,407			—
Total securities available-for-sale	$	192,621		$	—	$	192,621		$	—
Derivatives:
Interest rate swaps - customer related	$	184		$	—	$	184		$	—
Liabilities:
Derivatives:
Interest rate swaps - customer related	$	(184	)	$	—	$	(184	)	$	—
Interest rate swaps - cash flow hedges		(1,375	)		—		(1,375	)		—
Total derivatives	$	(1,559	)	$	—	$	(1,559	)	$	—

Assets measured at fair value on a nonrecurring basis are summarized below (dollars in thousands):

	Fair value measurements at June 30, 2018
			Quoted prices
			in active		Significant
			markets for		other		Significant
			identical		observable		unobservable
	Carrying		assets		inputs		inputs
	Value		(level 1)		(level 2)		(level 3)
Assets:
Impaired loans:
Commercial and industrial	$	3,744		—		—		3,744

	Fair value measurements at December 31, 2017
			Quoted prices
			in active		Significant
			markets for		other		Significant
			identical		observable		unobservable
	Carrying		assets		inputs		inputs
	Value		(level 1)		(level 2)		(level 3)
Assets:
Impaired loans:
Commercial and industrial	$	1,388		—		—		1,388

The following table presents quantitative information about Level 3 fair value measurements for assets measured at fair value on a non-recurring basis at June 30, 2018 and December 31, 2017 (dollars in thousands):

					Range
	Fair		Valuation		(Weighted-
June 30, 2018	Value		Technique(s)	Unobservable Input(s)	Average)
Impaired loans:
Commercial and industrial	$	3,744	Discounted cash flow	Probability of default	5%-60%
				Loss severity	5%-50%

					Range
	Fair		Valuation		(Weighted-
December 31, 2017	Value		Technique(s)	Unobservable Input(s)	Average)
Impaired loans:
Commercial and industrial	$	1,388	Sales comparison approach	Appraisal discounts		15	%

Fair Value of Financial Instruments

The carrying value and estimated fair values of the Bank’s financial instruments at June 30, 2018 and December 31, 2017 were as follows (dollars in thousands):

	June 30, 2018				December 31, 2017
	Carrying				Carrying				Fair value
	amount		Fair value		amount		Fair value		level of input
Financial assets:
Cash and due from banks, interest-bearing deposits in    financial institutions	$	47,150	$	47,150	$	78,078	$	78,078	Level 1
Federal funds sold		11,072		11,072		4,719		4,719	Level 1
Securities available-for-sale		183,364		183,364		192,621		192,621	Level 2
Securities held-to-maturity		3,746		3,798		3,759		3,848	Level 2
Loans held for sale		65,320		66,307		74,093		75,549	Level 2
Restricted equity securities		8,809	N/A			8,806	N/A		N/A
Loans, net		1,046,525		1,037,735		947,537		944,037	Level 3
Accrued interest receivable		4,347		4,347		4,084		4,084	Level 2
Other assets		23,424		23,424		22,663		22,663	Level 2
Financial liabilities:
Deposits		1,145,013		1,140,381		1,119,866		1,065,669	Level 3
Federal Home Loan Bank advances		95,000		94,996		70,000		69,980	Level 2
Other liabilities		2,866		2,866		3,672		3,672	Level 3

The methods and assumptions, not previously presented, used to estimate fair values are described as follows:

(a) Cash and Due from Banks, Interest-Bearing Deposits in Financial Institutions

For these short‑term instruments, the carrying amount is a reasonable estimate of fair value.

(b) Federal Funds Sold

Federal funds sold clear on a daily basis. For this reason, the carrying amount is a reasonable estimate of fair value.

(c) Restricted Equity Securities

It is not practical to determine the fair value of restricted securities due to restrictions placed on their transferability.

(d) Loans, net

During the first quarter of 2018, the Company adopted ASU 2016-01, “Recognition and Measurement of Financial Assets and Liabilities.”  The amendments included within this standard, which are applied prospectively, require the Company to disclose fair value of financial instruments measured at amortized cost on the balance sheet to measure that fair value using an exit price notion.  Prior to adopting the amendments included in the standard, the Company was allowed to measure fair value under an entry price notion.  The entry price notion previously applied by the Company used a discounted cash flows technique to calculate the present value of expected future cash flows for a financial instrument.  The exit price notion uses the same approach, but also incorporates other factors, such as enhanced credit risk, illiquidity risk and market factors that sometimes exist in exit prices in dislocated markets.  

As of June 30, 2018, the technique used by the Company to estimate the exit price of the loan portfolio consists of similar procedures to those used as of December 31, 2017, but with added emphasis on both illiquidity risk and credit risk not captured by the previously applied entry price notion. The fair value of the Company’s loan portfolio has always included a credit risk assumption in the determination of the fair value of its loans. This credit risk assumption is intended to approximate the fair value that a market participant would realize in a hypothetical orderly transaction. The Company’s loan portfolio is initially fair valued using a segmented approach. The Company divides its loan portfolio into the following categories: variable rate loans, impaired loans and all other loans. The results are then adjusted to account for credit risk as described above.  However, under the new guidance, the Company believes a further credit risk discount must be applied through the use of a discounted cash flow model to compensate for illiquidity risk, based on certain assumptions included within the discounted cash flow model, primarily the use of discount rates that better capture inherent credit risk over the lifetime of a loan. This consideration of enhanced credit risk provides an estimated exit price for the Company’s loan portfolio.

For variable-rate loans that reprice frequently and have no significant change in credit risk, fair values approximate carrying values. Fair values for impaired loans are estimated using discounted cash flow models or based on the fair value of the underlying collateral.

As of December 31, 2017, the fair value of the Company’s loan portfolio includes a credit risk assumption in the determination of the fair value of its loans. This credit risk assumption is intended to approximate the fair value that a market participant would realize in a hypothetical orderly transaction. The Company’s loan portfolio is initially fair valued using a segmented approach. The Company divides its loan portfolio into the following categories: variable rate loans, impaired loans and all other loans. The results are then adjusted to account for credit risk. For variable-rate loans that reprice frequently and have no significant change in credit risk, fair values approximate carrying values. Fair values for impaired loans are estimated using discounted cash flow models or based on the fair value of the underlying collateral. For other loans, fair values are estimated using discounted cash flow models, using current market interest rates offered for loans with similar terms to borrowers of similar credit quality. The values derived from the discounted cash flow approach for each of the above portfolios are then further discounted to incorporate credit risk. The methods utilized to estimate the fair value of loans do not necessarily represent an exit price as of December 31, 2017.

(e) Accrued Interest Receivable

The carrying amounts of accrued interest approximate fair value.

(f) Other Assets

Included in other assets are bank owned life insurance, certain interest rate swap agreements and the cash flow hedge relationships. The fair values of interest rate swap agreements and the cash flow hedge relationships are based on independent pricing services that utilize pricing models with observable market inputs. For bank owned life insurance, the carrying amount is based on the cash surrender value and is a reasonable estimate of fair value.

(g) Deposits

The fair value of demand deposits, savings accounts and certain money market deposits is the amount payable on demand at the reporting date. The fair value of certificates of deposit is estimated by discounted cash flow models, using current market interest rates offered on certificates with similar remaining maturities.

(h) Federal Home Loan Bank Advances

The fair value of fixed rate Federal Home Loan Bank Advances is estimated using discounted cash flow models, using current market interest rates offered on certificates, advances and other borrowings with similar remaining maturities.

(i) Other Liabilities

Included in other liabilities are accrued interest payable, certain interest rate swap agreements, the cash flow hedge relationships and contingent consideration. The fair values of interest rate swap agreements and the cash flow hedge relationships are based on independent pricing services that utilize pricing models with observable market inputs.  The fair value of contingent consideration is estimated by a discounted cash flow model that utilizes various unobservable inputs.  The carrying amounts of accrued interest approximate fair value.

(j) Off-Balance Sheet Instruments

Fair values for off-balance sheet, credit-related financial instruments are based on fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the counterparties’ credit standing.  The fair value of commitments is not material.

(k) Limitations

Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instruments. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Bank’s entire holdings of a particular instrument. Because no market exists for a significant portion of the Bank’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates.

Fair value estimates are based on estimating on and off‑balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. For example, fixed assets are not considered financial instruments and their value has not been incorporated into the fair value estimates. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.

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Subsequent Events

6 Months Ended

Jun. 30, 2018

Subsequent Events [Abstract]

Subsequent Events

NOTE 13 – SUBSEQUENT EVENT

On July 11, 2018, CapStar Bank purchased an existing bank branch building in Brentwood, Tennessee for $3.7 million for the future relocation of its Brentwood branch location, which is currently leased.  

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited consolidated financial statements as of and for the period ended June 30, 2018 include CapStar Financial Holdings, Inc. and its wholly owned subsidiary, CapStar Bank (the “Bank”, together referred to as the “Company”). Significant intercompany transactions and accounts are eliminated in consolidation.

The accompanying unaudited consolidated financial statements have been prepared in accordance with instructions to Form 10-Q and do not include all information and footnotes required by U.S. generally accepted accounting principles (“U.S. GAAP”) for complete financial statements. All adjustments consisting of normally recurring accruals that, in the opinion of management, are necessary for a fair presentation of the financial position and results of operations for the periods presented have been included.  These unaudited consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements and related notes appearing in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses, determination of impairment of intangible assets, including goodwill, the valuation of our investment portfolio, deferred tax assets and estimated liabilities.  There have been no significant changes to the Company’s critical accounting policies as disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

Subsequent Events

Subsequent Events

Accounting Standards Codification (“ASC”) 855, Subsequent Events, establishes general standards of accounting for and disclosure of events that occur after the balance sheet date but before financial statements are issued. The Company evaluated all events or transactions that occurred after June 30, 2018 through the date of the issued financial statements.

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Securities (Tables)

6 Months Ended

Jun. 30, 2018

Investments Debt And Equity Securities [Abstract]

Summary of Amortized Cost and Fair Value of Available-for-sale and Held-to-maturity Securities

The amortized cost and fair value of securities available-for-sale and held-to-maturity at June 30, 2018 and December 31, 2017 are summarized as follows (dollars in thousands):

	June 30, 2018									December 31, 2017
	Amortized Cost		Gross unrealized gains		Gross unrealized (losses)			Estimated fair value		Amortized Cost		Gross unrealized gains		Gross unrealized (losses)			Estimated fair value
Securities available-for-sale:
U. S. government agency securities	$	11,250	$	—	$	(488	)	$	10,762	$	11,433	$	12	$	(168	)	$	11,277
State and municipal securities		45,447		298		(1,413	)		44,332		51,790		1,430		(222	)		52,998
Mortgage-backed securities		106,495		—		(4,058	)		102,437		108,236		40		(1,714	)		106,562
Asset-backed securities		15,968		21		(23	)		15,966		16,575		—		(198	)		16,377
Other debt securities		9,873		61		(67	)		9,867		5,326		81		—			5,407
Total	$	189,033	$	380	$	(6,049	)	$	183,364	$	193,360	$	1,563	$	(2,302	)	$	192,621
Securities held-to-maturity:
State and municipal securities	$	3,746	$	55	$	(3	)	$	3,798	$	3,759	$	89	$	—		$	3,848
Total	$	3,746	$	55	$	(3	)	$	3,798	$	3,759	$	89	$	—		$	3,848

Summary of Securities with Unrealized Losses and Length of Time Continuous Loss Positions

Security fair values are established by an independent pricing service as of the dates indicated. The difference between amortized cost and fair value reflects current interest rates and represents the potential gain (loss) had the portfolio been liquidated on those dates. Security gains (losses) are realized only in the event of dispositions prior to maturity or other-than-temporary impairment. Securities with unrealized losses as of June 30, 2018 and December 31, 2017, and the length of time they were in continuous loss positions as of such dates are as follows (dollars in thousands):

	Less than 12 months					12 months or more					Total
June 30, 2018	Estimated fair value		Gross unrealized losses			Estimated fair value		Gross unrealized losses			Estimated fair value		Gross unrealized losses
U. S. government agency securities	$	7,110	$	(240	)	$	3,652	$	(248	)	$	10,762	$	(488	)
State and municipal securities		27,726		(1,074	)		3,970		(342	)		31,696		(1,416	)
Mortgage-backed securities		36,012		(1,034	)		66,425		(3,024	)		102,437		(4,058	)
Asset-backed securities		—		—			7,536		(23	)		7,536		(23	)
Other debt securities		5,505		(67	)		—		—			5,505		(67	)
Total temporarily impaired securities	$	76,353	$	(2,415	)	$	81,583	$	(3,637	)	$	157,936	$	(6,052	)
December 31, 2017
U. S. government agency securities	$	7,375	$	(90	)	$	1,912	$	(78	)	$	9,287	$	(168	)
State and municipal securities		7,490		(106	)		5,798		(116	)		13,288		(222	)
Mortgage-backed securities		29,832		(322	)		67,813		(1,392	)		97,645		(1,714	)
Asset-backed securities		—		—			16,377		(198	)		16,377		(198	)
Other debt securities		—		—			—		—			—		—
Total temporarily impaired securities	$	44,697	$	(518	)	$	91,900	$	(1,784	)	$	136,597	$	(2,302	)

Summary of Sale of Debt and Equity Securities

Results from sales of debt and equity securities were as follows (dollars in thousands):

	Six Months Ended			Six Months Ended
	June 30, 2018			June 30, 2017
Proceeds	$	5,778		$	29,968
Gross gains		107			110
Gross losses		(104	)		(76	)

Summary of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity

The amortized cost and fair value of securities at June 30, 2018, by contractual maturity, are shown below (dollars in thousands). Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately.

	Available-for-sale				Held-to-maturity
	Amortized cost		Estimated fair value		Amortized cost		Estimated fair value
Due in less than one year	$	1,849	$	1,846	$	—	$	—
Due one to five years		20,577		20,673		3,746		3,798
Due five to ten years		28,854		28,023		—		—
Due beyond ten years		15,290		14,419		—		—
Mortgage-backed securities		106,495		102,437		—		—
Asset-backed securities		15,968		15,966		—		—
Total	$	189,033	$	183,364	$	3,746	$	3,798

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Loans and Allowance for Loan Losses (Tables)

6 Months Ended

Jun. 30, 2018

Receivables [Abstract]

Summary of Loan Portfolio

A summary of the loan portfolio as of June 30, 2018 and December 31, 2017 follows (dollars in thousands):

	June 30, 2018			December 31, 2017
Commercial real estate	$	408,244		$	350,622
Consumer real estate		109,915			102,581
Construction and land development		96,580			82,586
Commercial and industrial		386,065			373,248
Consumer		9,671			6,862
Other		36,429			31,983
Total		1,046,904			947,882
Less net unearned income		(379	)		(345	)
Total loans		1,046,525			947,537
Allowance for loan losses		(14,705	)		(13,721	)
Total loans, net	$	1,031,820		$	933,816

Summary of Loans by Risk Rating

The following tables present the loan balances by category as well as risk rating (dollars in thousands):

	Non-impaired Loans
June 30, 2018	Pass/Watch		Special Mention		Substandard		Total Non-impaired		TotalImpaired Loans		Total
Commercial real estate	$	405,003	$	—	$	2,068	$	407,071	$	1,173	$	408,244
Consumer real estate		109,689		—		226		109,915		—		109,915
Construction and land development		96,580		—		—		96,580		—		96,580
Commercial and industrial		371,917		2,395		6,334		380,646		5,419		386,065
Consumer		9,671		—		—		9,671		—		9,671
Other		36,429		—		—		36,429		—		36,429
Total	$	1,029,289	$	2,395	$	8,628	$	1,040,312	$	6,592	$	1,046,904
December 31, 2017
Commercial real estate	$	349,415	$	—	$	—	$	349,415	$	1,207	$	350,622
Consumer real estate		102,571		—		10		102,581		—		102,581
Construction and land development		82,586		—		—		82,586		—		82,586
Commercial and industrial		349,494		11,193		11,073		371,760		1,488		373,248
Consumer		6,849		—		13		6,862		—		6,862
Other		31,983		—		—		31,983		—		31,983
Total	$	922,898	$	11,193	$	11,096	$	945,187	$	2,695	$	947,882

Summary of Changes and Breakdown of Allowance for Loan Losses and Loan Portfolio by Loan Category

The following tables detail the changes in the ALL for the three and six months ended June 30, 2018 and 2017 (dollars in thousands):

	Commercial real estate		Consumer real estate		Construction and land development			Commercial and industrial			Consumer			Other			Total
Three Months Ended June 30, 2018
Balance, beginning of period	$	3,512	$	1,036	$	1,742		$	7,798		$	122		$	353		$	14,563
Charged-off loans		—		—		—			(79	)		(12	)		—			(91	)
Recoveries		6		1		—			53			4			—			64
Provision for loan losses		33		20		22			7			6			81			169
Balance, end of period	$	3,551	$	1,057	$	1,764		$	7,779		$	120		$	434		$	14,705
Three Months Ended June 30, 2017
Balance, beginning of period	$	3,257	$	1,048	$	1,090		$	8,013		$	60		$	529		$	13,997
Charged-off loans				—		—			(11,244	)		—			—			(11,244	)
Recoveries		—		1		—			—			10			—			11
Provision for loan losses		276		32		(179	)		9,626			(13	)		(52	)		9,690
Balance, end of period	$	3,533	$	1,081	$	911		$	6,395		$	57		$	477		$	12,454

	Commercial real estate		Consumer real estate			Construction and land development			Commercial and industrial			Consumer			Other			Total
Six Months Ended June 30, 2018
Balance, beginning of period	$	3,324	$	1,063		$	1,628		$	7,209		$	91		$	406		$	13,721
Charged-off loans		—		—			—			(226	)		(25	)		—			(251	)
Recoveries		10		2			—			326			51			—			389
Provision for loan losses		217		(8	)		136			470			3			28			846
Balance, end of period	$	3,551	$	1,057		$	1,764		$	7,779		$	120		$	434		$	14,705
Six Months Ended June 30, 2017
Balance, beginning of period	$	2,655	$	1,013		$	1,574		$	5,618		$	76		$	698		$	11,634
Charged-off loans		—		—			—			(12,369	)		—			—			(12,369	)
Recoveries		—		1			—			3			91			—			95
Provision for loan losses		878		67			(663	)		13,143			(110	)		(221	)		13,094
Balance, end of period	$	3,533	$	1,081		$	911		$	6,395		$	57		$	477		$	12,454

A breakdown of the ALL and the loan portfolio by loan category at June 30, 2018 and December 31, 2017 follows (dollars in thousands):

	Commercial real estate		Consumer real estate		Construction and land development		Commercial and industrial		Consumer		Other		Total
June 30, 2018
Allowance for Loan Losses:
Collectively evaluated for impairment	$	3,551	$	1,057	$	1,764	$	6,104	$	120	$	434	$	13,030
Individually evaluated for impairment		—		—		—		1,675		—		—		1,675
Balances, end of period	$	3,551	$	1,057	$	1,764	$	7,779	$	120	$	434	$	14,705
Loans:
Collectively evaluated for impairment	$	407,071	$	109,915	$	96,580	$	380,646	$	9,671	$	36,429	$	1,040,312
Individually evaluated for impairment		1,173		—		—		5,419		—		—		6,592
Balances, end of period	$	408,244	$	109,915	$	96,580	$	386,065	$	9,671	$	36,429	$	1,046,904
December 31, 2017
Allowance for Loan Losses:
Collectively evaluated for impairment	$	3,324	$	1,063	$	1,628	$	7,109	$	91	$	406	$	13,621
Individually evaluated for impairment		—		—		—		100		—		—		100
Balances, end of period	$	3,324	$	1,063	$	1,628	$	7,209	$	91	$	406	$	13,721
Loans:
Collectively evaluated for impairment	$	349,415	$	102,581	$	82,586	$	371,760	$	6,862	$	31,983	$	945,187
Individually evaluated for impairment		1,207		—		—		1,488		—		—		2,695
Balances, end of period	$	350,622	$	102,581	$	82,586	$	373,248	$	6,862	$	31,983	$	947,882

Allocation of ALL with Corresponding Percentage of ALL in Each Category to Total Loans, Net of Deferred Fee

The following table presents the allocation of the ALL for each respective loan category with the corresponding percentage of the ALL in each category to total loans, net of deferred fees as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	June 30, 2018					December 31, 2017
	Amount		Percent of total loans, net of deferred fees			Amount		Percent of total loans, net of deferred fees
Commercial real estate	$	3,551		0.34	%	$	3,324		0.35	%
Consumer real estate		1,057		0.10			1,063		0.11
Construction and land development		1,764		0.17			1,628		0.17
Commercial and industrial		7,779		0.75			7,209		0.76
Consumer		120		0.01			91		0.01
Other		434		0.04			406		0.04
Total allowance for loan losses	$	14,705		1.41	%	$	13,721		1.45	%

Summary of Impaired Loans

The following table presents the Company’s impaired loans that were evaluated for specific loss allowance as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	June 30, 2018						December 31, 2017
	Recorded investment		Unpaid principal balance		Related allowance		Recorded investment		Unpaid principal balance		Related allowance
With no related allowance recorded:
Commercial real estate	$	1,173	$	1,633	$	—	$	1,207	$	1,645	$	—
Consumer real estate		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—
Commercial and industrial		—		—		—		—		—		—
Consumer		—		—		—		—		—		—
Other		—		—		—		—		—		—
Subtotal		1,173		1,633		—		1,207		1,645		—
With an allowance recorded:
Commercial real estate		—		—		—		—		—		—
Consumer real estate		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—
Commercial and industrial		5,419		5,419		1,675		1,488		2,770		100
Consumer		—		—		—		—		—		—
Other		—		—		—		—		—		—
Subtotal		5,419		5,419		1,675		1,488		2,770		100
Total	$	6,592	$	7,052	$	1,675	$	2,695	$	4,415	$	100

The following table presents information related to the average recorded investment and interest income recognized on impaired loans for the three and six months ended June 30, 2018 and 2017 (dollars in thousands):

	Three Months Ended				Three Months Ended				Six Months Ended				Six Months Ended
	June 30, 2018				June 30, 2017				June 30, 2018				June 30, 2017
	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
With no related allowance recorded:
Commercial real estate	$	1,181	$	15	$	1,278	$	—	$	1,189	$	25	$	1,286	$	—
Consumer real estate		—		—		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—		—		—
Commercial and industrial		—		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—		—
Other		—		—		—		—		—		—		—		—
Subtotal		1,181		15		1,278		—		1,189		25		1,286		—
With an allowance recorded:
Commercial real estate		—		—		—		—		—		—		—		—
Consumer real estate		—		—		—		—		—		—		—		—
Construction and land development		—		—		—		—		—		—		—		—
Commercial and industrial		5,425		31		2,194		—		5,345		118		2,242		—
Consumer		—		—		—		—		—		—		—		—
Other		—		—		—		—		—		—		—		—
Subtotal		5,425		31		2,194		—		5,345		118		2,242		—
Total	$	6,606	$	46	$	3,472	$	—	$	6,534	$	143	$	3,528	$	—

Schedule of Aging of Recorded Investment in Past-due Loans, by Class of Loans

The following table presents the aging of the recorded investment in past-due loans as of June 30, 2018 and December 31, 2017 by class of loans (dollars in thousands):

	30 - 59		60 - 89		Greater Than
	Days		Days		89 Days		Total		Loans Not
	Past Due		Past Due		Past Due		Past Due		Past Due		Total
June 30, 2018
Commercial real estate	$	472	$	—	$	—	$	472	$	407,772	$	408,244
Consumer real estate		27		—		216		243		109,672		109,915
Construction and land development		—		—		—		—		96,580		96,580
Commercial and industrial		—		30		—		30		386,035		386,065
Consumer		—		—		—		—		9,671		9,671
Other		—		—		—		—		36,429		36,429
Total	$	499	$	30	$	216	$	745	$	1,046,159	$	1,046,904
December 31, 2017
Commercial real estate	$	—	$	—	$	—	$	—	$	350,622	$	350,622
Consumer real estate		—		—		218		218		102,363		102,581
Construction and land development		—		—		—		—		82,586		82,586
Commercial and industrial		1,967		209		—		2,176		371,072		373,248
Consumer		—		—		13		13		6,849		6,862
Other		—		—		—		—		31,983		31,983
Total	$	1,967	$	209	$	231	$	2,407	$	945,475	$	947,882

Schedule of Recorded In Non Accrual Loans, Past Due Loans over 90 Days Outstanding and Accruing and Troubled Debt Restructurings

The following table presents the recorded investment in non-accrual loans, past due loans over 90 days outstanding and accruing and troubled debt restructurings (“TDR”) by class of loans as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	Non-Accrual		Past Due Over 89 Days and Accruing		Troubled Debt Restructurings
June 30, 2018
Commercial real estate	$	—	$	—	$	1,173
Consumer real estate		—		216		—
Construction and land development		—		—		—
Commercial and industrial		5,419		—		—
Consumer		—		—		—
Other		—		—		—
Total	$	5,419	$	216	$	1,173
December 31, 2017
Commercial real estate	$	1,207	$	—	$	1,207
Consumer real estate		—		218		—
Construction and land development		—		—		—
Commercial and industrial		1,488		—		—
Consumer		—		13		—
Other		—		—		—
Total	$	2,695	$	231	$	1,207

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Federal Home Loan Bank Advances (Tables)

6 Months Ended

Jun. 30, 2018

Federal Home Loan Banks [Abstract]

Summary of Contractual Maturities and Average Effective Rates of Outstanding Advances

The following is a summary of the contractual maturities and average effective rates of outstanding advances (dollars in thousands):

	June 30, 2018					December 31, 2017
Year	Amount		Interest Rates			Amount		Interest Rates
2018	$	95,000		2.06	%	$	70,000		1.66	%
2019		—		—			—		—
2020		—		—			—		—
2021		—		—			—		—
2022		—		—			—		—
Thereafter		—		—			—		—
Total	$	95,000		2.06	%	$	70,000		1.66	%

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Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2018

Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]

Summary of Changes in Accumulated Other Comprehensive Income (Loss) by Component, Net of Tax

The following were changes in accumulated other comprehensive income (loss) by component, net of tax, for the six months ended June 30, 2018 and 2017 (dollars in thousands):

				Unrealized Gains			Unrealized
	Gains and			and Losses			Losses on
	Losses on			on Available			Securities
	Cash Flow			for Sale			Transferred to
	Hedges			Securities			Held to Maturity			Total
Six Months Ended June 30, 2018
Beginning Balance	$	(3,679	)	$	1,162		$	(10	)	$	(2,527	)
Other comprehensive income (loss) before    reclassification, net of tax		1,288			(3,639	)		1			(2,350	)
Amounts reclassified from accumulated other    comprehensive income (loss), net of tax		(435	)		(2	)		9			(428	)
Net current period other comprehensive income (loss)		853			(3,641	)		10			(2,778	)
Ending Balance	$	(2,826	)	$	(2,479	)	$	—		$	(5,305	)
Six Months Ended June 30, 2017
Beginning Balance	$	(4,241	)	$	(698	)	$	(1,212	)	$	(6,151	)
Other comprehensive income (loss) before     reclassification, net of tax		495			1,178			—			1,673
Amounts reclassified from accumulated other    comprehensive income (loss), net of tax		(313	)		(21	)		51			(283	)
Net current period other comprehensive income (loss)		182			1,157			51			1,390
Ending Balance	$	(4,059	)	$	459		$	(1,161	)	$	(4,761	)

Summary of Significant Amounts Reclassified out off Accumulated Other Comprehensive Income (Loss)

The following were significant amounts reclassified out of each component of accumulated other comprehensive income (loss) for the three and six months ended June 30, 2018 and 2017 (dollars in thousands):

													Affected Line Item
Details about Accumulated Other	Three Months Ended June 30,						Six Months Ended June 30,						in the Statement Where
Comprehensive Income Components	2018			2017			2018			2017			Net Income is Presented
Unrealized losses on cash flow hedges	$	(111	)	$	(108	)	$	(218	)	$	(213	)	Interest expense - money market
		(113	)		(50	)		(257	)		(100	)	Interest expense - Federal Home Loan Bank advances
		16			—			40			—		Income tax benefit
	$	(208	)	$	(158	)	$	(435	)	$	(313	)	Net of tax
Unrealized gains (losses) on available-   for-sale securities	$	(3	)	$	(40	)	$	(3	)	$	(34	)	Net gain (loss) on sale of securities
		1			15			1			13		Income tax expense
	$	(2	)	$	(25	)	$	(2	)	$	(21	)	Net of tax
Unrealized losses on securities   transferred to held-to-maturity	$	—		$	42		$	14		$	83		Interest income - securities
		—			(16	)		(5	)		(32	)	Income tax benefit
	$	—		$	26		$	9		$	51		Net of tax

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2018

Commitments And Contingencies Disclosure [Abstract]

Schedule of Financial Instruments Representing Credit Risk

The following table sets forth outstanding financial instruments whose contract amounts represent credit risk as of June 30, 2018 and December 31, 2017 (dollars in thousands):

	Contract or notional amount
	June 30, 2018		December 31, 2017
Financial instruments whose contract amounts represent    credit risk:
Unused commitments to extend credit	$	575,932	$	584,494
Standby letters of credit		10,047		11,552
Total	$	585,979	$	596,046

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Derivatives (Tables)

6 Months Ended

Jun. 30, 2018

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Summary of Interest-Rate Swaps Designated as Cash Flow Hedges

Summary information about the interest-rate swaps designated as cash flow hedges was as follows (dollars in thousands):

	June 30, 2018			December 31, 2017
Notional amounts	$	20,000		$	20,000
Weighted average pay rates		3.54	%		3.54	%
Weighted average receive rates	3 monthLIBOR			3 month LIBOR
Weighted average maturity	5.0 years			5.5 years
Fair value	$	(653	)	$	(1,375	)
Amount of unrealized loss recognized in accumulated    other comprehensive income, net of tax	$	(482	)	$	(1,016	)

Summary of Customer Related Interest Rate Swaps

A summary of the Company’s customer related interest rate swaps was as follows (dollars in thousands):

	June 30, 2018					December 31, 2017
	Notional		Estimated			Notional		Estimated
	amount		fair value			amount		fair value
Interest rate swap agreements:
Pay fixed/receive variable swaps	$	39,197	$	314		$	41,863	$	55
Pay variable/receive fixed swaps		39,197		(314	)		41,863		(55	)
Total	$	78,394	$	—		$	83,726	$	—

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Stock Options and Restricted Shares (Tables)

6 Months Ended

Jun. 30, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Company Recognized Stock-Based Compensation Expense

The Company has recognized stock-based compensation expense, within salaries and employee benefits for employees, and within other non-interest expense for directors, in the consolidated statements of income as follows (dollars in thousands):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2018			2017			2018			2017
Stock-based compensation expense before income taxes	$	325		$	248		$	630		$	484
Less: deferred tax benefit		(85	)		(95	)		(165	)		(185	)
Reduction of net income	$	240		$	153		$	465		$	299

Summary of Changes in Company's Nonvested Restricted Shares

A summary of the changes in the Company’s nonvested restricted shares for the six months ended June 30, 2018 follows:

				Weighted
				Average
	Restricted			Grant Date
Nonvested Shares	Shares			Fair Value
Nonvested at beginning of period		187,253		$	14.21
Granted		53,869			19.11
Vested		(81,657	)		12.27
Forfeited		(5,437	)		16.52
Nonvested at end of period		154,028		$	16.87

Summary of Activity in Stock Options

A summary of the activity in stock options for the six months ended June 30, 2018 follows:

						Weighted
				Weighted		Average
				Average		Remaining
				Exercise		Contractual
	Shares			Price		Term (years)
Outstanding at beginning of period		804,800		$	10.59
Granted		—			—
Exercised		(218,642	)		10.00
Forfeited or expired		—			—
Outstanding at end of period		586,158		$	10.82		2.5
Fully vested and expected to vest		583,633		$	10.81		2.3
Exercisable at end of period		558,658		$	10.75		2.3

Information Related to Stock Options

Information related to stock options during each year follows:

	2018		2017
Intrinsic value of options exercised	$	2,081,344	$	240,570
Cash received from option exercises		2,186,420		257,500
Tax benefit realized from option exercises		544,063		92,114
Weighted average fair value of options granted		—		—

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Regulatory Capital Requirements (Tables)

6 Months Ended

Jun. 30, 2018

Banking And Thrift [Abstract]

Schedule of Capital Amounts and Ratios

The Company’s and the Bank’s capital amounts and ratios as of June 30, 2018 and December 31, 2017 are presented in the following table (dollars in thousands).

	Actual					Minimum capital requirement (1)					Minimum to be well-capitalized (2)
	Amount		Ratio			Amount		Ratio			Amount		Ratio
At June 30, 2018:
Total capital to risk-weighted assets:
CapStar Financial Holdings, Inc.	$	166,409		12.45	%	$	106,945		8.00	%	N/A		N/A
CapStar Bank		150,773		11.28			106,907		8.00		$	133,634		10.00
Tier I capital to risk-weighted assets:
CapStar Financial Holdings, Inc.		151,525		11.33			80,209		6.00		N/A		N/A
CapStar Bank		135,889		10.17			80,181		6.00			106,907		8.00
Common equity Tier 1 capital to risk weighted    assets:
CapStar Financial Holdings, Inc.		142,525		10.66			60,157		4.50		N/A		N/A
CapStar Bank		119,389		8.93			60,135		4.50			86,862		6.50
Tier I capital to average assets:
CapStar Financial Holdings, Inc.		151,525		10.87			55,741		4.00		N/A		N/A
CapStar Bank		135,889		9.75			55,736		4.00			69,670		5.00
At December 31, 2017:
Total capital to risk-weighted assets:
CapStar Financial Holdings, Inc.	$	156,434		12.52	%	$	99,932		8.00	%	N/A		N/A
CapStar Bank		142,396		11.40			99,928		8.00		$	124,909		10.00
Tier I capital to risk-weighted assets:
CapStar Financial Holdings, Inc.		142,534		11.41			74,949		6.00		N/A		N/A
CapStar Bank		128,496		10.29			74,946		6.00			99,928		8.00
Common equity Tier 1 capital to risk weighted    assets:
CapStar Financial Holdings, Inc.		133,703		10.70			56,212		4.50		N/A		N/A
CapStar Bank		112,165		8.98			56,209		4.50			81,191		6.50
Tier I capital to average assets:
CapStar Financial Holdings, Inc.		142,534		10.77			53,218		4.00		N/A		N/A
CapStar Bank		128,496		9.71			53,215		4.00			66,519		5.00

(1) For the calendar year 2018, the Company must maintain a capital conservation buffer of Tier 1 common equity capital in excess of minimum risk-based capital ratios by at least 1.875% to avoid limits on capital distributions and certain discretionary bonus payments to executive officers and similar employees.

(2) For the Company to be well-capitalized, the Bank must be well-capitalized and the Company must not be subject to any written agreement, order, capital directive, or prompt corrective action directive issued by the Federal Reserve to meet and maintain a specific capital level for any capital measure.

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Summary of Basic and Diluted Earnings Per Share

The following is a summary of the basic and diluted earnings per share calculation for the three and six months ended June 30, 2018 and 2017 (dollars in thousands, except share data):

	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2018		2017			2018		2017
Basic net income (loss) per share calculation:
Numerator – Net income (loss)	$	3,513	$	(3,342	)	$	6,707	$	(3,010	)
Denominator – Average common shares outstanding		11,845,822		11,226,216			11,755,535		11,218,624
Basic net income (loss) per share	$	0.30	$	(0.30	)	$	0.57	$	(0.27	)
Diluted net income (loss) per share calculation:
Numerator – Net income (loss)	$	3,513	$	(3,342	)	$	6,707	$	(3,010	)
Denominator – Average common shares outstanding		11,845,822		11,226,216			11,755,535		11,218,624
Dilutive shares contingently issuable		1,221,401		1,513,888			1,266,209		1,543,365
Average diluted common shares outstanding		13,067,223		12,740,104			13,021,744		12,761,989
Diluted net income (loss) per share	$	0.27	$	(0.26	)	$	0.52	$	(0.24	)

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Fair Value (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis

Assets and liabilities measured at fair value on a recurring basis are summarized below (dollars in thousands):

	Fair value measurements at June 30, 2018
				Quoted prices
				in active		Significant
				markets for		other			Significant
				identical		observable			unobservable
	Carrying			assets		inputs			inputs
	Value			(Level 1)		(Level 2)			(Level 3)
Assets:
Securities available-for-sale:
U.S. government-sponsored agencies	$	10,762		$	—	$	10,762		$	—
Obligations of states and political subdivisions		44,332			—		44,332			—
Mortgage-backed securities-residential		102,437			—		102,437			—
Asset-backed securities		15,966			—		15,966			—
Other debt securities		9,867			—		9,867			—
Total securities available-for-sale	$	183,364		$	—	$	183,364		$	—
Derivatives:
Interest rate swaps - customer related	$	669		$	—	$	669		$	—
Liabilities:
Derivatives:
Interest rate swaps - customer related	$	(669	)	$	—	$	(669	)	$	—
Interest rate swaps - cash flow hedges		(653	)		—		(653	)		—
Total derivatives	$	(1,322	)	$	—	$	(1,322	)	$	—

	Fair value measurements at December 31, 2017
				Quoted prices
				in active		Significant
				markets for		other			Significant
				identical		observable			unobservable
	Carrying			assets		inputs			inputs
	Value			(Level 1)		(Level 2)			(Level 3)
Assets:
Securities available-for-sale:
U.S. government-sponsored agencies	$	11,277		$	—	$	11,277		$	—
Obligations of states and political subdivisions		52,998			—		52,998			—
Mortgage-backed securities-residential		106,562			—		106,562			—
Asset-backed securities		16,377			—		16,377			—
Other debt securities		5,407			—		5,407			—
Total securities available-for-sale	$	192,621		$	—	$	192,621		$	—
Derivatives:
Interest rate swaps - customer related	$	184		$	—	$	184		$	—
Liabilities:
Derivatives:
Interest rate swaps - customer related	$	(184	)	$	—	$	(184	)	$	—
Interest rate swaps - cash flow hedges		(1,375	)		—		(1,375	)		—
Total derivatives	$	(1,559	)	$	—	$	(1,559	)	$	—

Summary of Assets Measured at Fair Value on a Nonrecurring Basis

Assets measured at fair value on a nonrecurring basis are summarized below (dollars in thousands):

	Fair value measurements at June 30, 2018
			Quoted prices
			in active		Significant
			markets for		other		Significant
			identical		observable		unobservable
	Carrying		assets		inputs		inputs
	Value		(level 1)		(level 2)		(level 3)
Assets:
Impaired loans:
Commercial and industrial	$	3,744		—		—		3,744

	Fair value measurements at December 31, 2017
			Quoted prices
			in active		Significant
			markets for		other		Significant
			identical		observable		unobservable
	Carrying		assets		inputs		inputs
	Value		(level 1)		(level 2)		(level 3)
Assets:
Impaired loans:
Commercial and industrial	$	1,388		—		—		1,388

Summary of Quantitative Information About Level 3 Fair Value Measurements for Assets Measured at Fair Value on a Non-recurring Basis

The following table presents quantitative information about Level 3 fair value measurements for assets measured at fair value on a non-recurring basis at June 30, 2018 and December 31, 2017 (dollars in thousands):

					Range
	Fair		Valuation		(Weighted-
June 30, 2018	Value		Technique(s)	Unobservable Input(s)	Average)
Impaired loans:
Commercial and industrial	$	3,744	Discounted cash flow	Probability of default	5%-60%
				Loss severity	5%-50%

					Range
	Fair		Valuation		(Weighted-
December 31, 2017	Value		Technique(s)	Unobservable Input(s)	Average)
Impaired loans:
Commercial and industrial	$	1,388	Sales comparison approach	Appraisal discounts		15	%

Summary of Carrying Value and Fair Values of the Bank's Financial Instruments

The carrying value and estimated fair values of the Bank’s financial instruments at June 30, 2018 and December 31, 2017 were as follows (dollars in thousands):

	June 30, 2018				December 31, 2017
	Carrying				Carrying				Fair value
	amount		Fair value		amount		Fair value		level of input
Financial assets:
Cash and due from banks, interest-bearing deposits in    financial institutions	$	47,150	$	47,150	$	78,078	$	78,078	Level 1
Federal funds sold		11,072		11,072		4,719		4,719	Level 1
Securities available-for-sale		183,364		183,364		192,621		192,621	Level 2
Securities held-to-maturity		3,746		3,798		3,759		3,848	Level 2
Loans held for sale		65,320		66,307		74,093		75,549	Level 2
Restricted equity securities		8,809	N/A			8,806	N/A		N/A
Loans, net		1,046,525		1,037,735		947,537		944,037	Level 3
Accrued interest receivable		4,347		4,347		4,084		4,084	Level 2
Other assets		23,424		23,424		22,663		22,663	Level 2
Financial liabilities:
Deposits		1,145,013		1,140,381		1,119,866		1,065,669	Level 3
Federal Home Loan Bank advances		95,000		94,996		70,000		69,980	Level 2
Other liabilities		2,866		2,866		3,672		3,672	Level 3

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Securities - Summary of Fair Value of Available for Sale Held to Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Securities available for sale [Abstract]
Amortized Cost	$ 189,033	$ 193,360
Gross unrealized gains	380	1,563
Gross unrealized (losses)	(6,049)	(2,302)
Estimated fair value	183,364	192,621
Securities held to maturity [Abstract]
Amortized Cost	3,746	3,759
Gross unrealized gains	55	89
Gross unrealized (losses)	(3)
Estimated fair value	3,798	3,848
U. S. government agency securities
Securities available for sale [Abstract]
Amortized Cost	11,250	11,433
Gross unrealized gains		12
Gross unrealized (losses)	(488)	(168)
Estimated fair value	10,762	11,277
State and municipal securities
Securities available for sale [Abstract]
Amortized Cost	45,447	51,790
Gross unrealized gains	298	1,430
Gross unrealized (losses)	(1,413)	(222)
Estimated fair value	44,332	52,998
Securities held to maturity [Abstract]
Amortized Cost	3,746	3,759
Gross unrealized gains	55	89
Gross unrealized (losses)	(3)
Estimated fair value	3,798	3,848
Mortgage-backed securities
Securities available for sale [Abstract]
Amortized Cost	106,495	108,236
Gross unrealized gains		40
Gross unrealized (losses)	(4,058)	(1,714)
Estimated fair value	102,437	106,562
Asset-backed securities
Securities available for sale [Abstract]
Amortized Cost	15,968	16,575
Gross unrealized gains	21
Gross unrealized (losses)	(23)	(198)
Estimated fair value	15,966	16,377
Other debt securities
Securities available for sale [Abstract]
Amortized Cost	9,873	5,326
Gross unrealized gains	61	81
Gross unrealized (losses)	(67)
Estimated fair value	$ 9,867	$ 5,407

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Securities - Summary of Securities with Unrealized Losses and Length of Time Continuous Loss Positions (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available-for-sale securities, continuous unrealized loss position [Abstract]
Less than 12 months, Estimated fair value	$ 76,353	$ 44,697
Less than 12 months, Gross unrealized (losses)	(2,415)	(518)
12 months or more, Estimated fair value	81,583	91,900
12 months or more, Gross unrealized losses	(3,637)	(1,784)
Total, Estimated fair value	157,936	136,597
Total, Gross unrealized losses	(6,052)	(2,302)
U. S. government agency securities
Available-for-sale securities, continuous unrealized loss position [Abstract]
Less than 12 months, Estimated fair value	7,110	7,375
Less than 12 months, Gross unrealized (losses)	(240)	(90)
12 months or more, Estimated fair value	3,652	1,912
12 months or more, Gross unrealized losses	(248)	(78)
Total, Estimated fair value	10,762	9,287
Total, Gross unrealized losses	(488)	(168)
State and municipal securities
Available-for-sale securities, continuous unrealized loss position [Abstract]
Less than 12 months, Estimated fair value	27,726	7,490
Less than 12 months, Gross unrealized (losses)	(1,074)	(106)
12 months or more, Estimated fair value	3,970	5,798
12 months or more, Gross unrealized losses	(342)	(116)
Total, Estimated fair value	31,696	13,288
Total, Gross unrealized losses	(1,416)	(222)
Mortgage-backed securities
Available-for-sale securities, continuous unrealized loss position [Abstract]
Less than 12 months, Estimated fair value	36,012	29,832
Less than 12 months, Gross unrealized (losses)	(1,034)	(322)
12 months or more, Estimated fair value	66,425	67,813
12 months or more, Gross unrealized losses	(3,024)	(1,392)
Total, Estimated fair value	102,437	97,645
Total, Gross unrealized losses	(4,058)	(1,714)
Asset-backed securities
Available-for-sale securities, continuous unrealized loss position [Abstract]
12 months or more, Estimated fair value	7,536	16,377
12 months or more, Gross unrealized losses	(23)	(198)
Total, Estimated fair value	7,536	16,377
Total, Gross unrealized losses	(23)	$ (198)
Other debt securities
Available-for-sale securities, continuous unrealized loss position [Abstract]
Less than 12 months, Estimated fair value	5,505
Less than 12 months, Gross unrealized (losses)	(67)
Total, Estimated fair value	5,505
Total, Gross unrealized losses	$ (67)

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Securities - Additional Information (Details) $ in Millions	Jun. 30, 2018 USD ($)
Schedule Of Available For Sale Securities [Line Items]
Unrealized losses in investment securities portfolio	$ 6.1
Public Deposits, Derivative Positions and Federal Home Loan Bank Advances
Schedule Of Available For Sale Securities [Line Items]
Carrying value of securities	$ 118.4

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Securities - Summary of Sale of Debt and Equity Securities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Investments Debt And Equity Securities [Abstract]
Proceeds	$ 5,778	$ 29,968
Gross gains	107	110
Gross losses	$ (104)	$ (76)

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Securities - Summary of Amortized Cost and Fair Value of Debt and Equity Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available-for-sale, Amortized cost [Abstract]
Due in less than one year	$ 1,849
Due one to five years	20,577
Due five to ten years	28,854
Due beyond ten years	15,290
Amortized Cost	189,033	$ 193,360
Available-for-sale, Estimated fair value [Abstract]
Due in less than one year	1,846
Due one to five years	20,673
Due five to ten years	28,023
Due beyond ten years	14,419
Total	183,364	192,621
Held-to-maturity, Amortized cost [Abstract]
Due one to five years	3,746
Amortized Cost	3,746	3,759
Securities held to maturity [Abstract]
Due one to five years	3,798
Total	3,798	3,848
Mortgage-backed securities
Available-for-sale, Amortized cost [Abstract]
Amortized cost	106,495
Amortized Cost	106,495	108,236
Available-for-sale, Estimated fair value [Abstract]
Estimated fair value	102,437
Total	102,437	106,562
Asset-backed securities
Available-for-sale, Amortized cost [Abstract]
Amortized cost	15,968
Amortized Cost	15,968	16,575
Available-for-sale, Estimated fair value [Abstract]
Estimated fair value	15,966
Total	$ 15,966	$ 16,377

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Loans and Allowance for Loan Losses - Summary of Loan Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Loans And Leases Receivable Disclosure [Line Items]
Total loans	$ 1,046,904		$ 947,882
Less net unearned income	(379)		(345)
Total loans	1,046,525		947,537
Less allowance for loan losses	(14,705)	$ (14,563)	(13,721)	$ (12,454)	$ (13,997)	$ (11,634)
Loans, net	1,031,820		933,816
Commercial real estate
Loans And Leases Receivable Disclosure [Line Items]
Total loans	408,244		350,622
Less allowance for loan losses	(3,551)	(3,512)	(3,324)	(3,533)	(3,257)	(2,655)
Consumer real estate
Loans And Leases Receivable Disclosure [Line Items]
Total loans	109,915		102,581
Less allowance for loan losses	(1,057)	(1,036)	(1,063)	(1,081)	(1,048)	(1,013)
Construction and land development
Loans And Leases Receivable Disclosure [Line Items]
Total loans	96,580		82,586
Less allowance for loan losses	(1,764)	(1,742)	(1,628)	(911)	(1,090)	(1,574)
Commercial and industrial
Loans And Leases Receivable Disclosure [Line Items]
Total loans	386,065		373,248
Less allowance for loan losses	(7,779)	(7,798)	(7,209)	(6,395)	(8,013)	(5,618)
Consumer
Loans And Leases Receivable Disclosure [Line Items]
Total loans	9,671		6,862
Less allowance for loan losses	(120)	(122)	(91)	(57)	(60)	(76)
Other
Loans And Leases Receivable Disclosure [Line Items]
Total loans	36,429		31,983
Less allowance for loan losses	$ (434)	$ (353)	$ (406)	$ (477)	$ (529)	$ (698)

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Loans and Allowance for Loan Losses - Additional Information (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($) Contract	Jun. 30, 2017 USD ($) Contract	Jun. 30, 2018 USD ($) Contract	Jun. 30, 2017 USD ($) Contract	Dec. 31, 2017 USD ($)
Loans And Leases Receivable Disclosure [Line Items]
Minimum loan amount for loans analyzed by credit risk			$ 500,000
Total loans	$ 1,046,904,000		1,046,904,000		$ 947,882,000
Interest income recognized on a cash basis for impaired loans	15,000	$ 0	25,000	$ 0
Investment in TDR	1,200,000		1,200,000		1,200,000
Specific allowance related to loans	1,675,000		1,675,000		100,000
Additional commitments related to TDR	$ 0		$ 0		0
New TDR identified during the period | Contract	0	0	0	0
TDR, payment default within twelve months | Contract	0	0	0	0
Loan period considered as payment default			30 days
Troubled Debt Restructurings
Loans And Leases Receivable Disclosure [Line Items]
Specific allowance related to loans	$ 0		$ 0		0
Doubtful
Loans And Leases Receivable Disclosure [Line Items]
Total loans	$ 0		$ 0		$ 0

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Loans and Allowance for Loan Losses - Summary of Loan Balances by Category as well as Risk Rating (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable Recorded Investment [Line Items]
Total loans	$ 1,046,904	$ 947,882
Total Impaired Loans
Financing Receivable Recorded Investment [Line Items]
Total loans	6,592	2,695
Non Impaired Loans
Financing Receivable Recorded Investment [Line Items]
Total loans	1,040,312	945,187
Non Impaired Loans | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Total loans	1,029,289	922,898
Non Impaired Loans | Special Mention
Financing Receivable Recorded Investment [Line Items]
Total loans	2,395	11,193
Non Impaired Loans | Substandard
Financing Receivable Recorded Investment [Line Items]
Total loans	8,628	11,096
Commercial real estate
Financing Receivable Recorded Investment [Line Items]
Total loans	408,244	350,622
Commercial real estate | Total Impaired Loans
Financing Receivable Recorded Investment [Line Items]
Total loans	1,173	1,207
Commercial real estate | Non Impaired Loans
Financing Receivable Recorded Investment [Line Items]
Total loans	407,071	349,415
Commercial real estate | Non Impaired Loans | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Total loans	405,003	349,415
Commercial real estate | Non Impaired Loans | Substandard
Financing Receivable Recorded Investment [Line Items]
Total loans	2,068
Consumer real estate
Financing Receivable Recorded Investment [Line Items]
Total loans	109,915	102,581
Consumer real estate | Non Impaired Loans
Financing Receivable Recorded Investment [Line Items]
Total loans	109,915	102,581
Consumer real estate | Non Impaired Loans | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Total loans	109,689	102,571
Consumer real estate | Non Impaired Loans | Substandard
Financing Receivable Recorded Investment [Line Items]
Total loans	226	10
Construction and land development
Financing Receivable Recorded Investment [Line Items]
Total loans	96,580	82,586
Construction and land development | Non Impaired Loans
Financing Receivable Recorded Investment [Line Items]
Total loans	96,580	82,586
Construction and land development | Non Impaired Loans | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Total loans	96,580	82,586
Commercial and industrial
Financing Receivable Recorded Investment [Line Items]
Total loans	386,065	373,248
Commercial and industrial | Total Impaired Loans
Financing Receivable Recorded Investment [Line Items]
Total loans	5,419	1,488
Commercial and industrial | Non Impaired Loans
Financing Receivable Recorded Investment [Line Items]
Total loans	380,646	371,760
Commercial and industrial | Non Impaired Loans | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Total loans	371,917	349,494
Commercial and industrial | Non Impaired Loans | Special Mention
Financing Receivable Recorded Investment [Line Items]
Total loans	2,395	11,193
Commercial and industrial | Non Impaired Loans | Substandard
Financing Receivable Recorded Investment [Line Items]
Total loans	6,334	11,073
Consumer
Financing Receivable Recorded Investment [Line Items]
Total loans	9,671	6,862
Consumer | Non Impaired Loans
Financing Receivable Recorded Investment [Line Items]
Total loans	9,671	6,862
Consumer | Non Impaired Loans | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Total loans	9,671	6,849
Consumer | Non Impaired Loans | Substandard
Financing Receivable Recorded Investment [Line Items]
Total loans		13
Other
Financing Receivable Recorded Investment [Line Items]
Total loans	36,429	31,983
Other | Non Impaired Loans
Financing Receivable Recorded Investment [Line Items]
Total loans	36,429	31,983
Other | Non Impaired Loans | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Total loans	$ 36,429	$ 31,983

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Loans and Allowance for Loan Losses - Summary of Changes in Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	$ 14,563	$ 13,997	$ 13,721	$ 11,634
Charged-off loans	(91)	(11,244)	(251)	(12,369)
Recoveries	64	11	389	95
Provision for loan losses	169	9,690	846	13,094
Ending Balance	14,705	12,454	14,705	12,454
Commercial real estate
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	3,512	3,257	3,324	2,655
Recoveries	6		10
Provision for loan losses	33	276	217	878
Ending Balance	3,551	3,533	3,551	3,533
Consumer real estate
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	1,036	1,048	1,063	1,013
Recoveries	1	1	2	1
Provision for loan losses	20	32	(8)	67
Ending Balance	1,057	1,081	1,057	1,081
Construction and land development
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	1,742	1,090	1,628	1,574
Provision for loan losses	22	(179)	136	(663)
Ending Balance	1,764	911	1,764	911
Commercial and industrial
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	7,798	8,013	7,209	5,618
Charged-off loans	(79)	(11,244)	(226)	(12,369)
Recoveries	53		326	3
Provision for loan losses	7	9,626	470	13,143
Ending Balance	7,779	6,395	7,779	6,395
Consumer
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	122	60	91	76
Charged-off loans	(12)		(25)
Recoveries	4	10	51	91
Provision for loan losses	6	(13)	3	(110)
Ending Balance	120	57	120	57
Other
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	353	529	406	698
Provision for loan losses	81	(52)	28	(221)
Ending Balance	$ 434	$ 477	$ 434	$ 477

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Loans and Allowance for Loan Losses - Summary of Breakdown of Allowance for Loan Losses and Loan Portfolio by Loan Category (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Allowance for Loan Losses:
Collectively evaluated for impairment	$ 13,030		$ 13,621
Individually evaluated for impairment	1,675		100
Allowance for Loan Losses, Ending Balance	14,705	$ 14,563	13,721	$ 12,454	$ 13,997	$ 11,634
Loans:
Collectively evaluated for impairment	1,040,312		945,187
Individually evaluated for impairment	6,592		2,695
Total	1,046,904		947,882
Commercial real estate
Allowance for Loan Losses:
Collectively evaluated for impairment	3,551		3,324
Allowance for Loan Losses, Ending Balance	3,551	3,512	3,324	3,533	3,257	2,655
Loans:
Collectively evaluated for impairment	407,071		349,415
Individually evaluated for impairment	1,173		1,207
Total	408,244		350,622
Consumer real estate
Allowance for Loan Losses:
Collectively evaluated for impairment	1,057		1,063
Allowance for Loan Losses, Ending Balance	1,057	1,036	1,063	1,081	1,048	1,013
Loans:
Collectively evaluated for impairment	109,915		102,581
Total	109,915		102,581
Construction and land development
Allowance for Loan Losses:
Collectively evaluated for impairment	1,764		1,628
Allowance for Loan Losses, Ending Balance	1,764	1,742	1,628	911	1,090	1,574
Loans:
Collectively evaluated for impairment	96,580		82,586
Total	96,580		82,586
Commercial and industrial
Allowance for Loan Losses:
Collectively evaluated for impairment	6,104		7,109
Individually evaluated for impairment	1,675		100
Allowance for Loan Losses, Ending Balance	7,779	7,798	7,209	6,395	8,013	5,618
Loans:
Collectively evaluated for impairment	380,646		371,760
Individually evaluated for impairment	5,419		1,488
Total	386,065		373,248
Consumer
Allowance for Loan Losses:
Collectively evaluated for impairment	120		91
Allowance for Loan Losses, Ending Balance	120	122	91	57	60	76
Loans:
Collectively evaluated for impairment	9,671		6,862
Total	9,671		6,862
Other
Allowance for Loan Losses:
Collectively evaluated for impairment	434		406
Allowance for Loan Losses, Ending Balance	434	$ 353	406	$ 477	$ 529	$ 698
Loans:
Collectively evaluated for impairment	36,429		31,983
Total	$ 36,429		$ 31,983

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Loans and Allowance for Loan Losses - Allocation of ALL with Corresponding Percentage of ALL in Each Category to Total Loans, Net of Deferred Fee (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Loans And Leases Receivable Disclosure [Line Items]
Allowance for loan losses, Amount	$ 14,705	$ 14,563	$ 13,721	$ 12,454	$ 13,997	$ 11,634
Allowance for loan losses, Percentage of total loans, net of deferred fees	1.41%		1.45%
Commercial real estate
Loans And Leases Receivable Disclosure [Line Items]
Allowance for loan losses, Amount	$ 3,551	3,512	$ 3,324	3,533	3,257	2,655
Allowance for loan losses, Percentage of total loans, net of deferred fees	0.34%		0.35%
Consumer real estate
Loans And Leases Receivable Disclosure [Line Items]
Allowance for loan losses, Amount	$ 1,057	1,036	$ 1,063	1,081	1,048	1,013
Allowance for loan losses, Percentage of total loans, net of deferred fees	0.10%		0.11%
Construction and land development
Loans And Leases Receivable Disclosure [Line Items]
Allowance for loan losses, Amount	$ 1,764	1,742	$ 1,628	911	1,090	1,574
Allowance for loan losses, Percentage of total loans, net of deferred fees	0.17%		0.17%
Commercial and industrial
Loans And Leases Receivable Disclosure [Line Items]
Allowance for loan losses, Amount	$ 7,779	7,798	$ 7,209	6,395	8,013	5,618
Allowance for loan losses, Percentage of total loans, net of deferred fees	0.75%		0.76%
Consumer
Loans And Leases Receivable Disclosure [Line Items]
Allowance for loan losses, Amount	$ 120	122	$ 91	57	60	76
Allowance for loan losses, Percentage of total loans, net of deferred fees	0.01%		0.01%
Other
Loans And Leases Receivable Disclosure [Line Items]
Allowance for loan losses, Amount	$ 434	$ 353	$ 406	$ 477	$ 529	$ 698
Allowance for loan losses, Percentage of total loans, net of deferred fees	0.04%		0.04%

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Loans and Allowance for Loan Losses - Summary of Impaired Loans Evaluated for Specific Loss Allowance (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable Impaired [Line Items]
Impaired loans with no related allowance recorded, Recorded investment	$ 1,173	$ 1,207
Impaired loans with no related allowance recorded, Unpaid principal balance	1,633	1,645
Impaired loans with an allowance recorded, Related allowance	1,675	100
Impaired loans with an allowance recorded, Recorded investment	5,419	1,488
Impaired loans with an allowance recorded, Unpaid principal balance	5,419	2,770
Recorded investment	6,592	2,695
Unpaid principal balance	7,052	4,415
Commercial real estate
Financing Receivable Impaired [Line Items]
Impaired loans with no related allowance recorded, Recorded investment	1,173	1,207
Impaired loans with no related allowance recorded, Unpaid principal balance	1,633	1,645
Commercial and industrial
Financing Receivable Impaired [Line Items]
Impaired loans with an allowance recorded, Related allowance	1,675	100
Impaired loans with an allowance recorded, Recorded investment	5,419	1,488
Impaired loans with an allowance recorded, Unpaid principal balance	$ 5,419	$ 2,770

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Loans and Allowance for Loan Losses - Summary of Average Recorded Investment and Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Financing Receivable Impaired [Line Items]
Impaired loans with no related allowance recorded, Average recorded investment	$ 1,181	$ 1,278	$ 1,189	$ 1,286
Impaired loans with no related allowance recorded, Interest income recognized	15		25
Impaired loans with an allowance recorded, Average recorded investment	5,425	2,194	5,345	2,242
Impaired loans with an allowance recorded, Interest income recognized	31		118
Average recorded investment	6,606	3,472	6,534	3,528
Interest income recognized	46		143
Commercial real estate
Financing Receivable Impaired [Line Items]
Impaired loans with no related allowance recorded, Average recorded investment	1,181	1,278	1,189	1,286
Impaired loans with no related allowance recorded, Interest income recognized	15		25
Commercial and industrial
Financing Receivable Impaired [Line Items]
Impaired loans with an allowance recorded, Average recorded investment	5,425	$ 2,194	5,345	$ 2,242
Impaired loans with an allowance recorded, Interest income recognized	$ 31		$ 118

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Loans and Allowance for Loan Losses - Schedule of Aging of Recorded Investment in Past-due Loans, by Class of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	$ 745	$ 2,407
Loans Not Past Due	1,046,159	945,475
Total	1,046,904	947,882
Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	472
Loans Not Past Due	407,772	350,622
Total	408,244	350,622
Consumer real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	243	218
Loans Not Past Due	109,672	102,363
Total	109,915	102,581
Construction and land development
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Not Past Due	96,580	82,586
Total	96,580	82,586
Commercial and industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	30	2,176
Loans Not Past Due	386,035	371,072
Total	386,065	373,248
Consumer
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		13
Loans Not Past Due	9,671	6,849
Total	9,671	6,862
Other
Financing Receivable Recorded Investment Past Due [Line Items]
Loans Not Past Due	36,429	31,983
Total	36,429	31,983
30 - 59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	499	1,967
30 - 59 Days Past Due [Member] | Commercial real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	472
30 - 59 Days Past Due [Member] | Consumer real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	27
30 - 59 Days Past Due [Member] | Commercial and industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		1,967
60 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	30	209
60 - 89 Days Past Due [Member] | Commercial and industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	30	209
Greater than 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	216	231
Greater than 89 Days Past Due [Member] | Consumer real estate
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	$ 216	218
Greater than 89 Days Past Due [Member] | Consumer
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		$ 13

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Loans and Allowance for Loan Losses - Schedule of Non-Accrual Loans, Past Due Loans over 90 Days Outstanding and Accruing and Troubled Debt Restructurings (TDR) by Class of Loans (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Accounts Notes And Loans Receivable [Line Items]
Non-Accrual	$ 5,419	$ 2,695
Past Due Over 89 Days and Accruing	216	231
Troubled Debt Restructurings	1,173	1,207
Commercial real estate
Accounts Notes And Loans Receivable [Line Items]
Non-Accrual		1,207
Troubled Debt Restructurings	1,173	1,207
Consumer real estate
Accounts Notes And Loans Receivable [Line Items]
Past Due Over 89 Days and Accruing	216	218
Commercial and industrial
Accounts Notes And Loans Receivable [Line Items]
Non-Accrual	$ 5,419	1,488
Consumer
Accounts Notes And Loans Receivable [Line Items]
Past Due Over 89 Days and Accruing		$ 13

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Federal Home Loan Bank Advances - Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Federal Home Loan Bank Advances [Line Items]
Outstanding borrowings	$ 95,000	$ 70,000
Investment securities, FHLB stock and commercial and residential real estate mortgage loans
Federal Home Loan Bank Advances [Line Items]
Federal Home Loan Bank Advances Collateralized Investment Securities Value	3,900
Mortgage loans collateralized amount	423,500
Amount of available credit	$ 89,400

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Federal Home Loan Bank Advances - Summary of Contractual Maturities and Average Effective Rates of Outstanding Advances (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Federal Home Loan Bank Advances Maturities Summary [Abstract]
2018	$ 95,000	$ 70,000
Total amount	$ 95,000	$ 70,000
2018	2.06%	1.66%
Total interest rates	2.06%	1.66%

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Accumulated Other Comprehensive Income (Loss) - Summary of Changes In Accumulated Other Comprehensive Income (Loss) By Component, Net of Tax (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance			$ 146,946	$ 139,207
Other comprehensive income (loss) before reclassification, net of tax			(2,350)	1,673
Amounts reclassified from accumulated other comprehensive income (loss), net of tax			(428)	(283)
Net current period other comprehensive income (loss)	$ (111)	$ 852	(2,778)	1,390
Ending balance	153,146	138,030	153,146	138,030
Gains and Losses on Cash Flow Hedges
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance			(3,679)	(4,241)
Other comprehensive income (loss) before reclassification, net of tax			1,288	495
Amounts reclassified from accumulated other comprehensive income (loss), net of tax			(435)	(313)
Net current period other comprehensive income (loss)			853	182
Ending balance	(2,826)	(4,059)	(2,826)	(4,059)
Unrealized Gains and Losses on Available for Sale Securities
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance			1,162	(698)
Other comprehensive income (loss) before reclassification, net of tax			(3,639)	1,178
Amounts reclassified from accumulated other comprehensive income (loss), net of tax			(2)	(21)
Net current period other comprehensive income (loss)			(3,641)	1,157
Ending balance	(2,479)	459	(2,479)	459
Unrealized Losses on Securities Transferred to Held to Maturity
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance			(10)	(1,212)
Other comprehensive income (loss) before reclassification, net of tax			1
Amounts reclassified from accumulated other comprehensive income (loss), net of tax			9	51
Net current period other comprehensive income (loss)			10	51
Ending balance		(1,161)		(1,161)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance			(2,527)	(6,151)
Net current period other comprehensive income (loss)			(2,778)	1,390
Ending balance	$ (5,305)	$ (4,761)	$ (5,305)	$ (4,761)

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Accumulated Other Comprehensive Income (Loss) - Summary of Significant Amounts Reclassified out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income On Derivatives [Line Items]
Net (gain) loss on sale of securities			$ 3	$ 34
Interest expense - Federal Home Loan Bank advances	$ (627)	$ (379)	(1,117)	(519)
Income tax benefit	(665)	1,328	(1,148)	1,375
Net income (loss)	3,513	(3,342)	6,707	(3,010)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Losses on Cash Flow Hedges
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income On Derivatives [Line Items]
Interest expense money market	(111)	(108)	(218)	(213)
Interest expense - Federal Home Loan Bank advances	(113)	(50)	(257)	(100)
Income tax benefit	16		40
Net income (loss)	(208)	(158)	(435)	(313)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains and Losses on Available for Sale Securities
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income On Derivatives [Line Items]
Net (gain) loss on sale of securities	(3)	(40)	(3)	(34)
Income tax benefit	1	15	1	13
Net income (loss)	$ (2)	(25)	(2)	(21)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Losses on Securities Transferred to Held to Maturity
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income On Derivatives [Line Items]
Interest income - securities		42	14	83
Income tax benefit		(16)	(5)	(32)
Net income (loss)		$ 26	$ 9	$ 51

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Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Taxes [Line Items]
Effective tax rate	15.90%	(28.40%)	14.60%	(31.40%)
Income tax expense	$ (277,000)	$ (21,000)	$ (640,000)	$ (167,000)
Federal statutory income tax rate			21.00%		35.00%
Tennessee | State and Local Jurisdiction
Income Taxes [Line Items]
Excise tax rate			6.50%

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Commitments and Contingencies - Schedule of Financial Instruments Representing Credit Risk (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Commitments And Contingencies Disclosure [Abstract]
Unused commitments to extend credit	$ 575,932	$ 584,494
Standby letters of credit	10,047	11,552
Total	$ 585,979	$ 596,046

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Derivatives - Additional Information (Details) - Designated as Hedging Instrument - Interest Rate Swaps - Cash Flow Hedges - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Derivative [Line Items]
Notional amounts	$ 20,000,000	$ 20,000,000
Investment securities pledged collateral to counterparties	2,200,000
Investment securities pledged collateral from counterparties	$ 0

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Derivatives - Summary of Interest-Rate Swaps Designated as Cash Flow Hedges (Details) - Designated as Hedging Instrument - Cash Flow Hedges - Interest Rate Swaps - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Derivative [Line Items]
Notional amounts	$ 20,000,000	$ 20,000,000
Weighted average pay rates	3.54%	3.54%
Weighted average receive rates	June 30, 2018: 3 month LIBOR and Dec. 31, 2017: 3 month LIBOR
Weighted average maturity	5 years	5 years 6 months
Fair value	$ (653,000)	$ (1,375,000)
Amount of unrealized loss recognized in accumulated other comprehensive income, net of tax	$ (482,000)	$ (1,016,000)

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Derivatives - Summary of Customer Related Interest Rate Swaps (Details) - Interest Rate Swaps - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Derivative [Line Items]
Interest rate swap, Notional amount	$ 78,394,000	$ 83,726,000
Pay fixed/receive variable swaps
Derivative [Line Items]
Interest rate swap, Notional amount	39,197,000	41,863,000
Interest rate swap, Estimated fair value	314,000	55,000
Pay variable/receive fixed swaps
Derivative [Line Items]
Interest rate swap, Notional amount	39,197,000	41,863,000
Interest rate swap, Estimated fair value	$ (314,000)	$ (55,000)

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Stock Options and Restricted Shares - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Apr. 30, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$ 2.0
Total fair value of shares vested	$ 1.6	$ 0.6
Vesting period	4 years
Contractual term	10 years
Options granted	0	0
Unrecognized compensation cost	$ 0.1
Restricted Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cost expected to be recognized over a weighted-average period	2 years 1 month 6 days
Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cost expected to be recognized over a weighted-average period	1 year 2 months 12 days
CapStar Bank 2008 Stock Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of stock reserved for issuance of stock incentives	1,569,475		400,000
Shares issuable under both restricted share and stock option grants	506,435

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Stock Options and Restricted Shares - Summary of Company Recognized Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-based compensation expense before income taxes	$ 325	$ 248	$ 630	$ 484
Less: deferred tax benefit	(85)	(95)	(165)	(185)
Reduction of net income	$ 240	$ 153	$ 465	$ 299

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Stock Options and Restricted Shares - Summary of Changes in Company's Nonvested Restricted Shares (Details)	6 Months Ended
	Jun. 30, 2018 $ / shares shares
Restricted Shares, Abstract
Restricted Shares, Nonvested Beginning Balance | shares	187,253
Restricted Shares, Granted | shares	53,869
Restricted Shares, Vested | shares	(81,657)
Restricted Shares, Forfeited | shares	(5,437)
Restricted Shares, Nonvested Ending Balance | shares	154,028
Weighted Average Grant Date Fair Value, Abstract
Weighted Average Grant Date Fair Value, Nonvested Beginning Balance | $ / shares	$ 14.21
Weighted Average Grant Date Fair Value, Granted | $ / shares	19.11
Weighted Average Grant Date Fair Value, Vested | $ / shares	12.27
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	16.52
Weighted Average Grant Date Fair Value, Nonvested Ending Balance | $ / shares	$ 16.87

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Stock Options and Restricted Shares - Summary of Activity in Stock Options (Details) - $ / shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Shares, Abstract
Shares Outstanding, Beginning Balance	804,800
Shares Outstanding, Granted	0	0
Shares Outstanding, Exercised	(218,642)
Shares Outstanding, Ending Balance	586,158
Shares, Fully Vested and Expected to Vest	583,633
Shares, Exercisable at End of Period	558,658
Weighted Average Exercise Price, Abstract
Weighted Average Exercise Price Outstanding, Beginning Balance	$ 10.59
Weighted Average Exercise Price Outstanding, Exercised	10.00
Weighted Average Exercise Price Outstanding, Ending Balance	10.82
Weighted Average Exercise Price, Fully vested and expected to vest	10.81
Weighted Average Exercise Price, Exercisable at End of Period	$ 10.75
Weighted Average Remaining Contractual Term (year), Abstract
Weighted Average Remaining Contractual Term Outstanding	2 years 6 months
Weighted Average Remaining Contractual Term, Fully Vested and Expected to Vest	2 years 3 months 18 days
Weighted Average Remaining Contractual Term, Exercisable at End of Period	2 years 3 months 18 days

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Stock Options and Restricted Shares - Information Related to Stock Options (Details) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Intrinsic value of options exercised	$ 2,081,344	$ 240,570
Cash received from option exercises	2,186,420	257,500
Tax benefit realized from option exercises	$ 544,063	$ 92,114

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Regulatory Capital Requirements - Schedule of Capital Amounts and Ratios (Details) - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
CapStar Financial Holdings, Inc.
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total capital to risk-weighted assets, actual amount		$ 166,409	$ 156,434
Tier I capital to risk-weighted assets, actual amount		151,525	142,534
Tier I capital to average assets, actual amount		$ 151,525	$ 142,534
Total capital to risk-weighted assets, actual ratio		12.45%	12.52%
Tier I capital to risk-weighted assets, actual ratio		11.33%	11.41%
Tier I capital to average assets, actual ratio		10.87%	10.77%
Total capital to risk-weighted assets, minimum capital requirement amount	[1]	$ 106,945	$ 99,932
Tier I capital to risk-weighted assets, minimum capital requirement amount	[1]	80,209	74,949
Tier I capital to average assets, minimum capital requirement amount	[1]	$ 55,741	$ 53,218
Total capital to risk-weighted assets, minimum capital requirement ratio	[1]	8.00%	8.00%
Tier I capital to risk-weighted assets, minimum capital requirement ratio	[1]	6.00%	6.00%
Tier I capital to average assets, minimum capital requirement ratio	[1]	4.00%	4.00%
CapStar Financial Holdings, Inc. | Common Stock
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier I capital to risk-weighted assets, actual amount		$ 142,525	$ 133,703
Tier I capital to risk-weighted assets, actual ratio		10.66%	10.70%
Tier I capital to risk-weighted assets, minimum capital requirement amount	[1]	$ 60,157	$ 56,212
Tier I capital to risk-weighted assets, minimum capital requirement ratio	[1]	4.50%	4.50%
CapStar Bank
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total capital to risk-weighted assets, actual amount		$ 150,773	$ 142,396
Tier I capital to risk-weighted assets, actual amount		135,889	128,496
Tier I capital to average assets, actual amount		$ 135,889	$ 128,496
Total capital to risk-weighted assets, actual ratio		11.28%	11.40%
Tier I capital to risk-weighted assets, actual ratio		10.17%	10.29%
Tier I capital to average assets, actual ratio		9.75%	9.71%
Total capital to risk-weighted assets, minimum capital requirement amount	[1]	$ 106,907	$ 99,928
Tier I capital to risk-weighted assets, minimum capital requirement amount	[1]	80,181	74,946
Tier I capital to average assets, minimum capital requirement amount	[1]	$ 55,736	$ 53,215
Total capital to risk-weighted assets, minimum capital requirement ratio	[1]	8.00%	8.00%
Tier I capital to risk-weighted assets, minimum capital requirement ratio	[1]	6.00%	6.00%
Tier I capital to average assets, minimum capital requirement ratio	[1]	4.00%	4.00%
Total capital to risk-weighted assets, minimum to be well capitalized amount	[2]	$ 133,634	$ 124,909
Tier I capital to risk-weighted assets, minimum to be well capitalized amount	[2]	106,907	99,928
Tier I capital to average assets, minimum to be well capitalized amount	[2]	$ 69,670	$ 66,519
Total capital to risk-weighted assets, minimum to be well capitalized ratio	[2]	10.00%	10.00%
Tier I capital to risk-weighted assets, minimum to be well capitalized ratio	[2]	8.00%	8.00%
Tier I capital to average assets, minimum to be well capitalized ratio	[2]	5.00%	5.00%
CapStar Bank | Common Stock
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier I capital to risk-weighted assets, actual amount		$ 119,389	$ 112,165
Tier I capital to risk-weighted assets, actual ratio		8.93%	8.98%
Tier I capital to risk-weighted assets, minimum capital requirement amount	[1]	$ 60,135	$ 56,209
Tier I capital to risk-weighted assets, minimum capital requirement ratio	[1]	4.50%	4.50%
Tier I capital to risk-weighted assets, minimum to be well capitalized amount	[2]	$ 86,862	$ 81,191
Tier I capital to risk-weighted assets, minimum to be well capitalized ratio	[2]	6.50%	6.50%

[1] For the calendar year 2018, the Company must maintain a capital conservation buffer of Tier 1 common equity capital in excess of minimum risk-based capital ratios by at least 1.875% to avoid limits on capital distributions and certain discretionary bonus payments to executive officers and similar employees.

[2] For the Company to be well-capitalized, the Bank must be well-capitalized and the Company must not be subject to any written agreement, order, capital directive, or prompt corrective action directive issued by the Federal Reserve to meet and maintain a specific capital level for any capital measure.

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Regulatory Capital Requirements - Schedule of Capital Amounts and Ratios (Parenthetical) (Details)	Jun. 30, 2018
Banking And Thrift [Abstract]
Minimum risk based capital ratios	1.875%

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Earning Per Share - Summary of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Basic net income (loss) per share calculation:
Numerator – Net income (loss)	$ 3,513	$ (3,342)	$ 6,707	$ (3,010)
Denominator – Average common shares outstanding	11,845,822	11,226,216	11,755,535	11,218,624
Basic net income (loss) per share of common stock	$ 0.30	$ (0.30)	$ 0.57	$ (0.27)
Diluted net income (loss) per share calculation:
Numerator – Net income (loss)	$ 3,513	$ (3,342)	$ 6,707	$ (3,010)
Dilutive shares contingently issuable	1,221,401	1,513,888	1,266,209	1,543,365
Average diluted common shares outstanding	13,067,223	12,740,104	13,021,744	12,761,989
Diluted net income (loss) per share of common stock	$ 0.27	$ (0.26)	$ 0.52	$ (0.24)

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Fair Value - Additional Information (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Other real estate owned	$ 0	$ 0
Loans held for sale carried at fair value	$ 0	$ 0

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Fair Value - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets:
Total securities available for sale	$ 183,364	$ 192,621
Obligations of States and Political Subdivisions
Assets:
Total securities available for sale	44,332	52,998
Asset-backed securities
Assets:
Total securities available for sale	15,966	16,377
Other debt securities
Assets:
Total securities available for sale	9,867	5,407
Fair Value Measurements Recurring Basis
Assets:
Total securities available for sale	183,364	192,621
Liabilities:
Total derivatives	(1,322)	(1,559)
Fair Value Measurements Recurring Basis | U.S. Government-sponsored Agencies
Assets:
Total securities available for sale	10,762	11,277
Fair Value Measurements Recurring Basis | Obligations of States and Political Subdivisions
Assets:
Total securities available for sale	44,332	52,998
Fair Value Measurements Recurring Basis | Mortgage-backed Securities-residential
Assets:
Total securities available for sale	102,437	106,562
Fair Value Measurements Recurring Basis | Asset-backed securities
Assets:
Total securities available for sale	15,966	16,377
Fair Value Measurements Recurring Basis | Other debt securities
Assets:
Total securities available for sale	9,867	5,407
Fair Value Measurements Recurring Basis | Interest Rate Swaps - Customer Related
Assets:
Interest rate swaps - customer related	669	184
Liabilities:
Total Derivatives:	(669)	(184)
Fair Value Measurements Recurring Basis | Interest Rate Swaps - Cash Flow Hedges
Liabilities:
Total Derivatives:	(653)	(1,375)
Fair Value Measurements Recurring Basis | Significant Other Observable Inputs (Level 2)
Assets:
Total securities available for sale	183,364	192,621
Liabilities:
Total derivatives	(1,322)	(1,559)
Fair Value Measurements Recurring Basis | Significant Other Observable Inputs (Level 2) | U.S. Government-sponsored Agencies
Assets:
Total securities available for sale	10,762	11,277
Fair Value Measurements Recurring Basis | Significant Other Observable Inputs (Level 2) | Obligations of States and Political Subdivisions
Assets:
Total securities available for sale	44,332	52,998
Fair Value Measurements Recurring Basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed Securities-residential
Assets:
Total securities available for sale	102,437	106,562
Fair Value Measurements Recurring Basis | Significant Other Observable Inputs (Level 2) | Asset-backed securities
Assets:
Total securities available for sale	15,966	16,377
Fair Value Measurements Recurring Basis | Significant Other Observable Inputs (Level 2) | Other debt securities
Assets:
Total securities available for sale	9,867	5,407
Fair Value Measurements Recurring Basis | Significant Other Observable Inputs (Level 2) | Interest Rate Swaps - Customer Related
Assets:
Interest rate swaps - customer related	669	184
Liabilities:
Total Derivatives:	(669)	(184)
Fair Value Measurements Recurring Basis | Significant Other Observable Inputs (Level 2) | Interest Rate Swaps - Cash Flow Hedges
Liabilities:
Total Derivatives:	$ (653)	$ (1,375)

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Fair Value - Summary of Assets Measured at Fair Value on a Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring [Member] - Commercial and industrial - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets:
Impaired loans	$ 3,744	$ 1,388
Significant Unobservable Inputs (Level 3)
Assets:
Impaired loans	$ 3,744	$ 1,388

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Fair Value - Summary of Quantitative Information About Level 3 Fair Value Measurements for Assets Measured at Fair Value on a Non-Recurring Basis (Details) - Fair Value, Measurements, Nonrecurring [Member] $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Commercial and industrial
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 3,744	$ 1,388
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Unobservable Input(s)	Loss severity
Significant Unobservable Inputs (Level 3) | Measurement Input, Discount Rate | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Valuation Technique(s)	5%
Significant Unobservable Inputs (Level 3) | Measurement Input, Discount Rate | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Valuation Technique(s)	50%
Significant Unobservable Inputs (Level 3) | Commercial and industrial
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Impaired loans	$ 3,744	$ 1,388
Valuation Technique(s)	Discounted cash flow	Dec. 31, 2017: Sales comparison approach
Unobservable Input(s)	Probability of default	Dec. 31, 2017:Appraisal discounts
Range (Weighted-Average)		0.15
Significant Unobservable Inputs (Level 3) | Commercial and industrial | Measurement Input, Discount Rate | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Valuation Technique(s)	5%
Significant Unobservable Inputs (Level 3) | Commercial and industrial | Measurement Input, Discount Rate | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Valuation Technique(s)	60%

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Fair Value - Summary of Carrying Value and Fair Values of the Bank's Financial Instruments (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Financial assets:
Securities available-for-sale	$ 183,364,000	$ 192,621,000
Securities held to maturity, fair value	3,798,000	3,848,000
Loans held for sale	0	0
Carrying amount
Financial assets:
Restricted equity securities	8,809,000	8,806,000
Carrying amount | Level 1
Financial assets:
Cash and due from banks, interest-bearing deposits in financial institutions	47,150,000	78,078,000
Federal funds sold	11,072,000	4,719,000
Carrying amount | Level 2
Financial assets:
Securities available-for-sale	183,364,000	192,621,000
Securities held to maturity, fair value	3,746,000	3,759,000
Loans held for sale	65,320,000	74,093,000
Accrued interest receivable	4,347,000	4,084,000
Other assets	23,424,000	22,663,000
Financial liabilities:
Federal Home Loan Bank advances	95,000,000	70,000,000
Carrying amount | Significant Unobservable Inputs (Level 3)
Financial assets:
Loans, net	1,046,525,000	947,537,000
Financial liabilities:
Deposits	1,145,013,000	1,119,866,000
Other liabilities	2,866,000	3,672,000
Fair value | Level 1
Financial assets:
Cash and due from banks, interest-bearing deposits in financial institutions	47,150,000	78,078,000
Federal funds sold	11,072,000	4,719,000
Fair value | Level 2
Financial assets:
Securities available-for-sale	183,364,000	192,621,000
Securities held to maturity, fair value	3,798,000	3,848,000
Loans held for sale	66,307,000	75,549,000
Accrued interest receivable	4,347,000	4,084,000
Other assets	23,424,000	22,663,000
Financial liabilities:
Federal Home Loan Bank advances	94,996,000	69,980,000
Fair value | Significant Unobservable Inputs (Level 3)
Financial assets:
Loans, net	1,037,735,000	944,037,000
Financial liabilities:
Deposits	1,140,381,000	1,065,669,000
Other liabilities	$ 2,866,000	$ 3,672,000

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Subsequent Events - Additional Information (Details) - USD ($) $ in Thousands		6 Months Ended
	Jul. 11, 2018	Jun. 30, 2018	Jun. 30, 2017
Subsequent Event [Line Items]
Purchase of bank branch building currently leased		$ 132	$ 1,060
CapStar Financial Holdings, Inc. | Subsequent Event
Subsequent Event [Line Items]
Purchase of bank branch building currently leased	$ 3,700