10-Q/A

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q/A

(Mark One)

x Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.

For the quarterly period ended March 31, 2013.

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 001-35854

Independent Bank Group, Inc.

(Exact name of registrant as specified in its charter)

Texas	13-4219346
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
1600 Redbud Boulevard, Suite 400 McKinney, Texas	75069-3257
(Address of principal executive offices)	(Zip Code)

(972) 562-9004

(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 such shorter periods 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 x

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x No ¨

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

Large accelerated filer	¨	Accelerated filer	¨
Non-accelerated filer	x	Smaller reporting company	¨

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

Applicable Only to Corporate Issuers

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

Common Stock, $0.01 Par Value – 12,062,027 shares as of May 15, 2013.

   

EXPLANATORY NOTE

This 10-Q/A, amending the Form 10-Q of Independent Bank Group, Inc. for the quarter ended March 31, 2013 and filed with the SEC on May 15, 2013, is filed solely for the purpose of filing its XBRL interactive files as exhibits to the 10-Q for the quarter ended March 31, 2013, which interactive files had not been filed with the 10-Q as originally filed in reliance on Rule 405(a)(2)(ii) of Regulation S-T.

Item 6. Exhibits

The following documents are filed as exhibits to this Quarterly Report on Form 10-Q:

Exhibit 3.1	Amended and Restated Certificate of Formation of Independent Bank Group, Inc., which is incorporated herein by reference to Exhibit 3.1 to Registration Statement on Form S-1 of Independent Bank Group, Inc. filed with the SEC on February 27, 2013.
Exhibit 3.2	Certificate of Amendment to Amended and Restated Certificate of Formation of Independent Bank Group, Inc., which is incorporated herein by reference to Exhibit 3.3 to Amendment No. 2 to Registration Statement on Form S-1 of Independent Bank Group, Inc. filed with the SEC on April 1, 2013.
Exhibit 3.3	Amended and Restated Bylaws of Independent Bank Group, Inc., which are incorporated herein by reference to Exhibit 3.2 to Amendment No. 1 to Registration Statement on Form S-1 of Independent Bank Group, Inc. filed with the SEC on March 18, 2013.
Exhibit 10.1	S-Corporation Revocation, Tax Allocation and Indemnification Agreements which is incorporated herein by reference to Exhibit 10.1 to Form 10-Q of Independent Bank Group, Inc. filed with the SEC on May 15, 2013.
Exhibit 10.2	Indemnification Agreements for Directors and Officers which is incorporated herein by reference to Exhibit 10.2 to form 10-Q of Independent Bank Group, Inc. filed with the SEC on May 15, 2013.
Exhibit 10.3	2013 Equity Incentive Plan, with form of Restricted Stock Agreement, which is incorporated herein by reference to Exhibit 3.1 to Registration Statement on Form S-1 of Independent Bank Group, Inc. filed with the SEC on February 27, 2013.
Exhibit 31.1*	Chief Executive Officer Section 302 Certification
Exhibit 31.2*	Chief Financial Officer Section 302 Certification
Exhibit 32.1**	Chief Executive Officer Section 906 Certification
Exhibit 32.2**	Chief Financial Officer Section 906 Certification
Exhibit 101.INS *	XBRL Instance Document
Exhibit 101.SCH *	XBRL Taxonomy Extension Schema Document
Exhibit 101.CAL *	XBRL Taxonomy Extension Calculation Linkbase Document
Exhibit 101.DEF *	XBRL Taxonomy Extension Definition Linkbase Document
Exhibit 101.LAB *	XBRL Taxonomy Extension Label Linkbase Document
Exhibit 101.PRE *	XBRL Taxonomy Extension Presentation Linkbase Document

* Filed herewith as an Exhibit.

** Furnished herewith as an Exhibit.

   

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.

	Independent Bank Group, Inc.
Date: June 12, 2013	By: /s/ David R. Brooks
	David R. Brooks
	Chairman and Chief Executive Officer

Date: June 12, 2013	By: /s/ Michelle S. Hickox
	Michelle S. Hickox
	Executive Vice President
	Chief Financial Officer

EX-31

Exhibit 31.1

I, David R. Brooks, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Independent Bank Group, Inc. (the “registrant”);

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 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 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;

(b) 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 evaluations; and

(c) 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 that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

(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 that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

5. The registrant’s other certifying officer 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:

(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: June 12, 2013	/s/ David R. Brooks
	David R. Brooks Chairman and Chief Executive Officer

EX-31

Exhibit 31.2

I, Michelle S. Hickox, certify that:

1.   I have reviewed this Quarterly Report on Form 10-Q of Independent Bank Group, Inc. (the “registrant”);

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 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 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;

(b)   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 evaluations; and

(c)   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 that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

(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 that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

5.   The registrant’s other certifying officer 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:

(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: June 12, 2013	/s/ Michelle S. Hickox
	Michelle S. Hickox Executive Vice President and Chief Financial Officer

EX-32

Exhibit 32.1

CERTIFICATION 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 of Independent Bank Group, Inc. (the “Company”) on Form 10-Q for the period ending March 31, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David R. Brooks, Chairman and Chief Executive Officer of the Company, certify to my knowledge and in my capacity as an officer of the Company, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities 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 as of the dates and for the periods expressed in the Report.

IN WITNESS WHEREOF, the undersigned has executed this Certificate, effective as of June 12, 2013.

/s/ David R. Brooks

David R. Brooks

Chairman and Chief Executive Officer

EX-32

Exhibit 32.2

CERTIFICATION 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 of Independent Bank Group, Inc. (the “Company”) on Form 10-Q for the period ending March 31, 2013 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Michelle S. Hickox, Executive Vice President and Chief Financial Officer of the Company, certify to my knowledge and in my capacity as an officer of the Company, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities 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 as of the dates and for the periods expressed in the Report.

IN WITNESS WHEREOF, the undersigned has executed this Certificate, effective as of June 12, 2013.

/s/ Michelle S. Hickox

Michelle S. Hickox

Executive Vice President and Chief Financial Officer

   

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Regulatory Matters

3 Months Ended

Mar. 31, 2013

Regulatory Matters

Note 9. Regulatory Matters

Under banking law, there are legal restrictions limiting the amount of dividends the Bank can declare. Approval of the regulatory authorities is required if the effect of dividends declared would cause the regulatory capital of the Bank to fall below specified minimum levels. For state banks, subject to regulatory capital requirements, payment of dividends is generally allowed to the extent of net profits.

The Company (on a consolidated basis) and the Bank are subject to various regulatory capital requirements administered by federal and state banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.

Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios (set forth in the table below) of total and Tier I capital (as defined in the regulations) to risk weighted assets (as defined), and of Tier I capital (as defined) to average assets (as defined). Management believes, as of March31, 2013 and December31, 2012, the Company and the Bank meet all capital adequacy requirements to which they are subject.

As of March31, 2013 and December31, 2012, the Bank’s capital ratios exceeded those levels necessary to be categorized as “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as “well capitalized”, the Bank must maintain minimum total risk based, Tier I risk based and Tier I leverage ratios as set forth in the table. There are no conditions or events since that notification that management believes have changed the Bank’s category.

The actual capital amounts and ratios of the Company and Bank as of March31, 2013 and December31, 2012, are presented in the following table:

	Actual					Minimum forCapital AdequacyPurposes						To Be Well CapitalizedUnder Prompt Corrective ActionProvisions
	Amount		Ratio				Amount		Ratio				Amount		Ratio
March31, 2013
Total capital to risk weighted assets:
Consolidated	$	137,781		10.20	%	$		108,035		8.00	%			N/A		N/A
Bank		144,001		10.76	%			107,106		8.00	%	$		133,882		10.00	%
Tier I capital to risk weighted assets:
Consolidated		108,231		8.01	%			54,018		4.00	%			N/A		N/A
Bank		132,017		9.86	%			53,553		4.00	%			80,329		6.00	%
Tier I capital to average assets:
Consolidated		108,231		6.29	%			68,809		4.00	%			N/A		N/A
Bank		132,017		7.80	%			67,695		4.00	%			84,619		5.00	%
December31, 2012:
Total capital to risk weighted assets:
Consolidated	$	137,553		10.51	%	$		104,693		8.00	%			N/A		N/A
Bank		143,646		11.07	%			103,790		8.00	%	$		129,738		10.00	%
Tier I capital to risk weighted assets:
Consolidated		107,539		8.22	%			52,346		4.00	%			N/A		N/A
Bank		132,168		10.19	%			51,895		4.00	%			77,843		6.00	%
Tier I capital to average assets:
Consolidated		107,539		6.45	%			66,722		4.00	%			N/A		N/A
Bank		132,168		7.99	%			66,162		4.00	%			82,702		5.00	%

The following is a reconciliation of the consolidated equity capital under U.S. generally accepted accounting principles to Tier 1 capital and total capital at March31, 2013 and December31, 2012:

	March31,			December31,
	2013			2012
Consolidated equity capital	$	124,142			$	124,510
Unrealized gains on securities, net		(1,694	)			(2,578	)
Junior subordinated debentures, net		17,600				17,600
Disallowed goodwill and core deposit intangibles		(31,817	)			(31,965	)
Consolidated Tier 1 capital		108,231				107,567
Tier 2 capital-subordinated debt (limited)		17,566				18,508
Allowance for loan losses		11,984				11,478
Consolidated total capital	$	137,781			$	137,553

The following is a reconciliation of Bank equity capital under U.S. generally accepted accounting principles to Tier 1 capital and total capital at March31, 2013 and December31, 2012:

	March31,			December31,
	2013			2012
Bank equity capital	$	165,528		$	166,711
Unrealized gains on securities, net		(1,694	)		(2,578	)
Disallowed goodwill and core deposit intangibles		(31,817	)		(31,965	)
Bank Tier 1 capital		132,017			132,168
Allowance for loan losses		11,984			11,478
Bank total capital	$	144,001		$	143,646

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Fair Value Measurements - Additional Information (Detail) (Significant Unobservable Inputs (Level 3), USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Significant Unobservable Inputs (Level 3)
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Contingent consideration	$ 290	$ 290

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Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Interest income:
Interest and fees on loans	$ 20,759	$ 14,899
Interest on taxable securities	366	385
Interest on nontaxable securities	249	199
Interest on federal funds sold and other	47	23
Total interest income	21,421	15,506
Interest expense:
Interest on deposits	1,728	2,134
Interest on FHLB advances	828	492
Interest on notes payable and other borrowings	515	450
Interest on junior subordinated debentures	135	128
Total interest expense	3,206	3,204
Net interest income	18,215	12,302
Provision for loan losses	1,030	575
Net interest income after provision for loan losses	17,185	11,727
Noninterest income:
Service charges on deposit accounts	1,139	809
Mortgage fee income	1,066	963
Gain (loss) on sale of other real estate	25	(53)
Loss on sale of securities available for sale		(3)
Gain on sale of premises and equipment	1	1
Increase in cash surrender value of BOLI	81	82
Other	114	92
Total noninterest income	2,426	1,891
Noninterest expense:
Salaries and employee benefits	7,748	5,840
Occupancy	2,147	1,670
Data processing	296	267
FDIC assessment	246	199
Advertising and public relations	216	154
Communications	340	308
Net other real estate owned expenses (including taxes)	166	73
Operations of IBG Adriatica, net	197	300
Other real estate impairment	448
Core deposit intangible amortization	176	142
Professional fees	272	243
Acquisition expense, including legal	137	216
Other	1,534	1,082
Total noninterest expense	13,923	10,494
Net income	5,688	3,124
Basic earnings per share	$ 0.69	$ 0.44
Diluted earnings per share	$ 0.68	$ 0.43
Pro Forma
Noninterest expense:
Income tax expense	1,866	940
Net income	$ 3,822	$ 2,184
Basic earnings per share	$ 0.46	$ 0.30
Diluted earnings per share	$ 0.46	$ 0.30

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Statement of Cash Flows

3 Months Ended

Mar. 31, 2013

Statement of Cash Flows

Note 2. Statement of Cash Flows

The Company has chosen to report on a net basis its cash receipts and cash payments for time deposits accepted and repayments of those deposits, and loans made to customers and principal collections on those loans. The Company uses the indirect method to present cash flows from operating activities.

Other supplemental cash flow information is presented below:

	ThreemonthsendedMarch31,
	2013		2012
Cash transactions:
Interest expense paid	$	3,250	$	3,269	0
Noncash transactions:
Dividends declared but not paid…………………………………………………….	$	2,324	$	-	0
Transfers of loans to other real estate owned	$	2,503	$	270	0
Loans to facilitate the sale of other real estate owned	$	-	$	20	0

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Financial Instruments with Off-Balance Sheet Risk (Tables)

3 Months Ended

Mar. 31, 2013

Financial Instruments with Off-balance Sheet Risk

At March31, 2013 and December31, 2012, the approximate amounts of these financial instruments were as follows:

	March31,		December31,
	2013		2012
Commitments to extend credit	$	188,531	$	153,932
Standby letters of credit		2,075		2,704
	$	190,606	$	156,636

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Actual Capital Amounts and Ratios (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Consolidated Entities
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total Capital to Risk Weighted Assets, Actual Amount	$ 137,781	$ 137,553
Total Capital to Risk Weighted Assets, Actual Ratio	10.20%	10.51%
Total Capital to Risk Weighted Assets, Minimum Required for Capital Adequacy Purposes Amount	108,035	104,693
Total Capital to Risk Weighted Assets, Minimum Required for Capital Adequacy Purposes Ratio	8.00%	8.00%
Tier I Capital to Risk Weighted Assets, Actual Amount	108,231	107,539
Tier I Capital to Risk Weighted Assets, Actual Ratio	8.01%	8.22%
Tier I Capital to Risk Weighted Assets, Minimum Required for Capital Adequacy Purposes Amount	54,018	52,346
Tier I Capital to Risk Weighted Assets, Minimum Required for Capital Adequacy Purposes Ratio	4.00%	4.00%
Tier I Capital to Average Assets, Actual Amount	108,231	107,539
Tier I Capital to Average Assets, Actual Ratio	6.29%	6.45%
Tier I Capital to Average Assets, Minimum Required for Capital Adequacy Purposes Amount	68,809	66,722
Tier I Capital to Average Assets, Minimum Required for Capital Adequacy Purposes Ratio	4.00%	4.00%
Independent Bank
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total Capital to Risk Weighted Assets, Actual Amount	144,001	143,646
Total Capital to Risk Weighted Assets, Actual Ratio	10.76%	11.07%
Total Capital to Risk Weighted Assets, Minimum Required for Capital Adequacy Purposes Amount	107,106	103,790
Total Capital to Risk Weighted Assets, Minimum Required for Capital Adequacy Purposes Ratio	8.00%	8.00%
Total Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	133,882	129,738
Total Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	10.00%	10.00%
Tier I Capital to Risk Weighted Assets, Actual Amount	132,017	132,168
Tier I Capital to Risk Weighted Assets, Actual Ratio	9.86%	10.19%
Tier I Capital to Risk Weighted Assets, Minimum Required for Capital Adequacy Purposes Amount	53,553	51,895
Tier I Capital to Risk Weighted Assets, Minimum Required for Capital Adequacy Purposes Ratio	4.00%	4.00%
Tier I Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	80,329	77,843
Tier I Capital to Risk Weighted Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	6.00%	6.00%
Tier I Capital to Average Assets, Actual Amount	132,017	132,168
Tier I Capital to Average Assets, Actual Ratio	7.80%	7.99%
Tier I Capital to Average Assets, Minimum Required for Capital Adequacy Purposes Amount	67,695	66,162
Tier I Capital to Average Assets, Minimum Required for Capital Adequacy Purposes Ratio	4.00%	4.00%
Tier I Capital to Average Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	$ 84,619	$ 82,702
Tier I Capital to Average Assets, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio	5.00%	5.00%

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Subsequent Events - Stock Offering

3 Months Ended

Mar. 31, 2013

Subsequent Events - Stock Offering

Note 10. Subsequent Events – Stock Offering

IBG qualifies as an “emerging growth company” as defined by the Jumpstart Our Business Startups Act of 2012 (“JOBS Act”). In October 2012, the Board of Directors of the Company approved a resolution for IBG to sell shares of common stock to the public in an initial public offering. On December28, 2012 the Company submitted a confidential draft Registration Statement on Form S-1 with the SEC with respect to the shares to be registered and sold. On February27, 2013, the Company filed a public Registration Statement on Form S-1 with the SEC. The Registration statement was declared effective by the SEC on April2, 2013. The Company issued 3,680,000 shares of common stock at $26 per share. Total proceeds received by the Company, net of offering costs was approximately $87 million.

Deferred transaction costs of $998 associated with the offering of common stock are recorded in other assets as of March31, 2013. Transaction costs will be recognized as a reduction to the proceeds of the stock offering.

In connection with the initial public offering, on February22, 2013 the Company amended its certificate of incorporation to affect a 3.2 for one stock split of its common stock and change the par value of common stock from $1 to $.01. All previously reported share amounts have been retrospectively restated to give effect to the stock split and the common stock account has been reallocated to additional paid in capital to reflect the new par value.

In April 2013, the Company fully paid all its notes payable outstanding, including $3,457 notes payable from Adriatica to an unaffiliated commercial bank and two senior notes with balances totaling $11,625. In addition, a $2,812 subordinated debt issuance from a commercial bank and $1,223 subordinated debt issued to individuals were also repaid. Debt retired subsequent to March31, 2013 totaled $19,117.

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Contingent Consideration Related to Acquisition of Town Center Bank (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 290	$ 821
Settlements
Change in estimated payments to be made		6
Ending balance	$ 290	$ 827

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Reconciliation of Consolidated Equity Capital Under U.S. Generally Accepted Accounting Principles to Tier 1 Capital and Total Capital (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Reconciliation Of Gaap Equity To Tier One Capital And Total Capital For Regulatory Purposes [Line Items]
Equity capital	$ 124,142	$ 124,510	$ 107,845	$ 85,997
Consolidated Entities
Reconciliation Of Gaap Equity To Tier One Capital And Total Capital For Regulatory Purposes [Line Items]
Equity capital	124,142	124,510
Unrealized gains on securities, net	(1,694)	(2,578)
Junior subordinated debentures, net	17,600	17,600
Disallowed goodwill and core deposit intangibles	(31,817)	(31,965)
Consolidated Tier 1 capital	108,231	107,539
Tier 2 capital-subordinated debt (limited)	17,566	18,508
Allowance for loan losses	11,984	11,478
Total capital	$ 137,781	$ 137,553

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Summary of Non Performing Loans by Loan Class (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Non Performing Loans [Line Items]
Nonaccrual loans	$ 1,727	$ 6,599
Loans past due 90 days and still accruing	18	2
Troubled debt restructurings (not included in nonaccrual or loans past due and still accruing)	3,969	4,433
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest, Total	5,714	11,034
Commercial
Non Performing Loans [Line Items]
Nonaccrual loans	657	218
Troubled debt restructurings (not included in nonaccrual or loans past due and still accruing)	124	481
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest, Total	781	699
Commercial Real Estate, Land and Land Development
Non Performing Loans [Line Items]
Nonaccrual loans	235	4,857
Troubled debt restructurings (not included in nonaccrual or loans past due and still accruing)	1,695	1,778
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest, Total	1,930	6,635
Real estate, Residential
Non Performing Loans [Line Items]
Nonaccrual loans	781	894
Loans past due 90 days and still accruing	17
Troubled debt restructurings (not included in nonaccrual or loans past due and still accruing)	2,148	2,165
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest, Total	2,946	3,059
Real estate, Single family interim construction
Non Performing Loans [Line Items]
Nonaccrual loans		560
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest, Total		560
Consumer
Non Performing Loans [Line Items]
Nonaccrual loans	54	70
Loans past due 90 days and still accruing	1	2
Troubled debt restructurings (not included in nonaccrual or loans past due and still accruing)	2	9
Loans and Leases Receivable, Nonperforming, Nonaccrual of Interest, Total	$ 57	$ 81

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Regulatory Matters (Tables)

3 Months Ended

Mar. 31, 2013

Actual Capital Amounts and Ratios

The actual capital amounts and ratios of the Company and Bank as of March31, 2013 and December31, 2012, are presented in the following table:

	Actual					Minimum forCapital AdequacyPurposes						To Be Well CapitalizedUnder Prompt Corrective ActionProvisions
	Amount		Ratio				Amount		Ratio				Amount		Ratio
March31, 2013
Total capital to risk weighted assets:
Consolidated	$	137,781		10.20	%	$		108,035		8.00	%			N/A		N/A
Bank		144,001		10.76	%			107,106		8.00	%	$		133,882		10.00	%
Tier I capital to risk weighted assets:
Consolidated		108,231		8.01	%			54,018		4.00	%			N/A		N/A
Bank		132,017		9.86	%			53,553		4.00	%			80,329		6.00	%
Tier I capital to average assets:
Consolidated		108,231		6.29	%			68,809		4.00	%			N/A		N/A
Bank		132,017		7.80	%			67,695		4.00	%			84,619		5.00	%
December31, 2012:
Total capital to risk weighted assets:
Consolidated	$	137,553		10.51	%	$		104,693		8.00	%			N/A		N/A
Bank		143,646		11.07	%			103,790		8.00	%	$		129,738		10.00	%
Tier I capital to risk weighted assets:
Consolidated		107,539		8.22	%			52,346		4.00	%			N/A		N/A
Bank		132,168		10.19	%			51,895		4.00	%			77,843		6.00	%
Tier I capital to average assets:
Consolidated		107,539		6.45	%			66,722		4.00	%			N/A		N/A
Bank		132,168		7.99	%			66,162		4.00	%			82,702		5.00	%

Consolidated Entities

Reconciliation of Equity Capital Under U.S. Generally Accepted Accounting Principles to Tier 1 Capital and Total Capital

The following is a reconciliation of the consolidated equity capital under U.S. generally accepted accounting principles to Tier 1 capital and total capital at March31, 2013 and December31, 2012:

	March31,			December31,
	2013			2012
Consolidated equity capital	$	124,142			$	124,510
Unrealized gains on securities, net		(1,694	)			(2,578	)
Junior subordinated debentures, net		17,600				17,600
Disallowed goodwill and core deposit intangibles		(31,817	)			(31,965	)
Consolidated Tier 1 capital		108,231				107,567
Tier 2 capital-subordinated debt (limited)		17,566				18,508
Allowance for loan losses		11,984				11,478
Consolidated total capital	$	137,781			$	137,553

Bank

Reconciliation of Equity Capital Under U.S. Generally Accepted Accounting Principles to Tier 1 Capital and Total Capital

The following is a reconciliation of Bank equity capital under U.S. generally accepted accounting principles to Tier 1 capital and total capital at March31, 2013 and December31, 2012:

	March31,			December31,
	2013			2012
Bank equity capital	$	165,528		$	166,711
Unrealized gains on securities, net		(1,694	)		(2,578	)
Disallowed goodwill and core deposit intangibles		(31,817	)		(31,965	)
Bank Tier 1 capital		132,017			132,168
Allowance for loan losses		11,984			11,478
Bank total capital	$	144,001		$	143,646

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Stock Awards and Stock Warrants (Tables)

3 Months Ended

Mar. 31, 2013

Nonvested Shares Activity

The following table summarizes the activity in nonvested shares for the three months ended March31, 2013 and 2012:

	Numberof Shares		Weighted Average GrantDate Price
Nonvested shares, December31, 2012	208,608		$	17.07
Granted during the period	-			-
Vested during the period	(16,317	)		11.94
Nonvested shares, March 31, 2013	192,291		$	18.05
Nonvested shares, December31, 2011	180,025		$	15.64
Granted during the period	14,240			20.31
Vested during the period	(28,698	)		14.72
Nonvested shares, March 31, 2012	165,567		$	16.35

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Commitments and Contingencies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Commitment And Contingencies [Line Items]
Rent expense	$ 209	$ 62

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Summary of Unrealized Losses and Fair Value of Securities in Continuous Unrealized Loss Position (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule Of Available For Sale Securities [Line Items]
Less than 12 months Fair Value	$ 12,785	$ 7,541
Less than 12 months Unrealized Losses	(541)	(242)
12 months or longer Fair Value
12 months or longer Unrealized Losses
Total Fair Value	12,785	7,541
Total Unrealized Losses	(541)	(242)
Government agency securities
Schedule Of Available For Sale Securities [Line Items]
Less than 12 months Fair Value	1,996
Less than 12 months Unrealized Losses	(4)
12 months or longer Fair Value
12 months or longer Unrealized Losses
Total Fair Value	1,996
Total Unrealized Losses	(4)
Obligations of state and municipal subdivisions
Schedule Of Available For Sale Securities [Line Items]
Less than 12 months Fair Value	10,787	6,551
Less than 12 months Unrealized Losses	(537)	(217)
12 months or longer Fair Value
12 months or longer Unrealized Losses
Total Fair Value	10,787	6,551
Total Unrealized Losses	(537)	(217)
Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA
Schedule Of Available For Sale Securities [Line Items]
Less than 12 months Fair Value	2
12 months or longer Fair Value
12 months or longer Unrealized Losses
Total Fair Value	2
Corporate bonds
Schedule Of Available For Sale Securities [Line Items]
Less than 12 months Fair Value		990
Less than 12 months Unrealized Losses		(25)
12 months or longer Fair Value
12 months or longer Unrealized Losses
Total Fair Value		990
Total Unrealized Losses		$ (25)

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Summary of Troubled Debt Restructurings (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013 Loan	Mar. 31, 2012 Loan
Financing Receivable Modifications [Line Items]
Trouble debt restructurings, Number of contracts		3
Trouble debt restructurings, Pre-restructuring outstanding recorded investment		$ 470
Trouble debt restructurings, Post-restructuring outstanding recorded investment		400
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Number of contracts
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Recorded investment
Commercial
Financing Receivable Modifications [Line Items]
Trouble debt restructurings, Number of contracts		1
Trouble debt restructurings, Pre-restructuring outstanding recorded investment		350
Trouble debt restructurings, Post-restructuring outstanding recorded investment		280
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Number of contracts
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Recorded investment
Commercial Real Estate, Land and Land Development
Financing Receivable Modifications [Line Items]
Trouble debt restructurings, Number of contracts
Trouble debt restructurings, Pre-restructuring outstanding recorded investment
Trouble debt restructurings, Post-restructuring outstanding recorded investment
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Number of contracts
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Recorded investment
Real estate, Residential
Financing Receivable Modifications [Line Items]
Trouble debt restructurings, Number of contracts		1
Trouble debt restructurings, Pre-restructuring outstanding recorded investment		94
Trouble debt restructurings, Post-restructuring outstanding recorded investment		94
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Number of contracts
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Recorded investment
Real estate, Single family interim construction
Financing Receivable Modifications [Line Items]
Trouble debt restructurings, Number of contracts
Trouble debt restructurings, Pre-restructuring outstanding recorded investment
Trouble debt restructurings, Post-restructuring outstanding recorded investment
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Number of contracts
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Recorded investment
Agricultural
Financing Receivable Modifications [Line Items]
Trouble debt restructurings, Number of contracts
Trouble debt restructurings, Pre-restructuring outstanding recorded investment
Trouble debt restructurings, Post-restructuring outstanding recorded investment
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Number of contracts
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Recorded investment
Consumer
Financing Receivable Modifications [Line Items]
Trouble debt restructurings, Number of contracts		1
Trouble debt restructurings, Pre-restructuring outstanding recorded investment		26
Trouble debt restructurings, Post-restructuring outstanding recorded investment		26
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Number of contracts
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Recorded investment
Other Loan
Financing Receivable Modifications [Line Items]
Trouble debt restructurings, Number of contracts
Trouble debt restructurings, Pre-restructuring outstanding recorded investment
Trouble debt restructurings, Post-restructuring outstanding recorded investment
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Number of contracts
Troubled debt restructurings during the previous twelve months that subsequently defaulted, Recorded investment

XML

Assets and Liabilities at Fair Value on Nonrecurring Basis (Detail) (Impaired Loans, USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Impaired loans, measured on a nonrecurring basis	$ 2,017	$ 5,146
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Impaired loans, measured on a nonrecurring basis
Significant Other Observable Inputs (Level 2)
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Impaired loans, measured on a nonrecurring basis
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Impaired loans, measured on a nonrecurring basis	2,017	5,146
Fair Value, Gain Loss
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Impaired loans, measured on a nonrecurring basis	$ 241	$ 187

XML

Amortized Cost of Securities and Approximate Fair Values (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 112,846	$ 110,777
Gross Unrealized Gains	2,235	2,820
Gross Unrealized Losses	(541)	(242)
Fair Value	114,540	113,355
U.S. treasuries
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	3,495	3,493
Gross Unrealized Gains	47	54
Fair Value	3,542	3,547
Government agency securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	68,635	69,636
Gross Unrealized Gains	477	575
Gross Unrealized Losses	(4)
Fair Value	69,108	70,211
Obligations of state and municipal subdivisions
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	37,989	34,908
Gross Unrealized Gains	1,650	2,123
Gross Unrealized Losses	(537)	(217)
Fair Value	39,102	36,814
Corporate bonds
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	2,098	2,105
Gross Unrealized Gains	15	23
Gross Unrealized Losses		(25)
Fair Value	2,113	2,103
Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	629	635
Gross Unrealized Gains	46	45
Fair Value	$ 675	$ 680

XML

Outstanding Balance and Related Carrying Amount of Purchased Impaired Loans (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
Financing Receivable Impaired [Line Items]
Outstanding balance	$ 4,546	$ 9,178	$ 10,839
Nonaccretable difference	(1,096)	(2,232)	(2,590)
Accretable yield	(1)	(1)	(27)
Carrying amount	$ 3,449	$ 6,945	$ 8,222

XML

Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

Assets and Liabilities at Fair Value on Recurring Basis

The following table represents assets and liabilities reported on the consolidated balance sheets at their fair value on a recurring basis as of March31, 2013 and December31, 2012 by level within the ASC Topic820 fair value measurement hierarchy:

			Fair Value Measurements at ReportingDate Using
	Assets/ Liabilities Measuredat FairValue		QuotedPrices inActive Marketsfor IdenticalAssets (Level1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level3)
March31, 2013
Measured on a recurring basis:
Assets:
Investment securities available for sale:
U.S. treasuries	$	3,542	$	-	$	3,542		$	-
Government agency securities		69,108		-		69,108			-
Obligations of state and municipal subdivisions		39,102		-		39,102			-
Corporate bonds…………………………………………..		2,113		-		2,113			-
Residential mortgage backed securities guaranteed by FNMA, GNMA, FHLMC and SBA		675		-		675			-
Liabilities:
Contingent consideration		290							290
December31, 2012:
Measured on a recurring basis:
Assets:
Investment securities available for sale:
U.S. treasuries	$	3,547	$	-	$	3,547		$	-
Government agency securities		70,211		-		70,211			-
Obligations of state and municipal subdivisions		36,814		-		36,814			-
Corporate bonds……………………………………………		2,103		-		2,103			-
Residential mortgage backed securities guaranteed by FNMA, GNMA, FHLMC and SBA		680		-		680			-
Liabilities:
Contingent consideration		290							290

Contingent Consideration Related to Acquisition of Town Center Bank

Contingent consideration, related to the acquisition of Town Center Bank in 2010, is reported at fair value using Level 3 inputs. The contingent consideration is remeasured on a recurring basis based on the expected present value of cash flows to be paid to the shareholders of the acquired institution using a market discount rate. The maximum amount payable at March31, 2013 is $290.

Balance as of December31, 2011	$	821
Settlements		-
Change in estimated payments to be made		6
Balance as of March31, 2012	$	827
Balance at December31, 2012	$	290
Settlements		-
Change in estimated payments to be made		-
Balance as of March31, 2013	$	290

Assets and Liabilities at Fair Value on Nonrecurring Basis

The following table presents the assets carried on the consolidated balance sheet by caption and by level in the fair value hierarchy at March31, 2013 and December31, 2012, for which a nonrecurring change in fair value has been recorded:

			FairValueMeasurementsatReportingDateUsing
	Assets/ Liabilities Measured atFairValue		QuotedPrices inActive Marketsfor IdenticalAssets (Level1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level3)			PeriodEnded TotalLosses
March31, 2013:
Measured on a nonrecurring basis:
Assets:
Impaired loans	$	2,017	$	-	$	-	$	2,017	$		241
December31, 2012:
Measured on a nonrecurring basis:
Assets:
Impaired loans	$	5,146	$	-	$	-	$	5,146	$		187

Other Real Estate Remeasured and Reported at Fair Value

The following table presents other real estate that was remeasured and reported at fair value:

	March31,			December31,
	2013			2012
Carrying value of other real estate prior to remeasurement	$	5,225		$	2,282
Less charge-offs recognized in the allowance for loan losses at initial acquisition		(530	)		(188	)
Less subsequent write-downs included in noninterest expense		(448	)		(94	)
Adjusted carrying value of remeasured other real estate	$	4,247		$	2,000

Quantitative Information about Level Three Measurements

For Level 3 financial and nonfinancial assets measured at fair value at March 31, 2013, the significant unobservable inputs used in the fair value measurements are as follows:

Assets	FairValue	ValuationTechnique	Unobservable Input(s)	Range(Weighted Average)
Impaired loans	$2,017	Collateral method	Adjustments for selling costs	N/A
Other real estate	4,247	Collateral method	Adjustments for selling costs	N/A
Contingent consideration	290	Cash flows to be paid	Expected payments	N/A

Carrying Amount and Estimated Fair Value of Financial Instruments

The carrying amount, estimated fair value and the financial hierarchy of the Company’s financial instruments were as follows at March31, 2013 and December31, 2012:

						FairValueMeasurementsat ReportingDateUsing
	Carrying Amount		Estimated Fair Value			QuotedPrices in Active Marketsfor IdenticalAssets (Level 1)			Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level3)
March 31, 2013:
Financial assets:
Cash and cash equivalents	$	80,890	$	80,890	$		80,890	$		-	$		-
Certificates of deposit held in other banks		4,682		4,682			-			4,682			-
Securities available for sale		114,540		114,540			-			114,540			-
Loans held for sale		6,090		6,090			-			6,090			-
Loans, net		1,403,922		1,438,072			-			1,433,886			4,186
FHLB of Dallas stock and other restricted stock		8,170		8,170			-			8,170			-
Accrued interest receivable		4,639		4,639			-			4,639			-
Financial liabilities:													-
Deposits		1,415,099		1,417,265			-			1,417,265			-
Accrued interest payable		696		696			-			696			-
FHLB advances		164,552		167,343			-			167,343			-
Notes payable		15,082		15,082			-			15,082			-
Other borrowings		20,600		20,758			-			20,758			-
Junior subordinated debentures		18,147		18,114			-			18,114			-
Contingent consideration		290		290			-			-			290
Off-balance sheet assets (liabilities):
Commitments to extend credit		-		-			-			-			-
Standby letters of credit		-		-			-			-			-
December31, 2012:
Financial assets:
Cash and cash equivalents	$	102,290	$	102,290	$		102,290	$		-	$		-
Certificates of deposit held in other banks		7,720		7,720			-			7,720			-
Securities available for sale		113,355		113,355			-			113,355			-
Loans held for sale		9,162		9,162			-			9,162			-
Loans, net		1,358,036		1,420,577			-			1,414,016			6,561
FHLB of Dallas stock and other restricted stock		8,165		8,165			-			8,165			-
Accrued interest receivable		4,647		4,647			-			4,647			-
Financial liabilities:													-
Deposits		1,390,740		1,399,373			-			1,399,373			-
Accrued interest payable		740		740			-			740			-
FHLB advances		164,601		170,239			-			170,239			-
Notes payable		15,729		15,729			-			15,729			-
Other borrowings		20,788		20,970			-			20,970			-
Junior subordinated debentures		18,147		18,114			-			18,114			-
Contingent consideration		290		290			-			-			290
Off-balance sheet assets (liabilities):
Commitments to extend credit		-		-			-			-			-
Standby letters of credit		-		-			-			-			-

XML

Consolidated Statements of Changes in Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income
Beginning balance at Dec. 31, 2011	$ 85,997	$ 69	$ 59,196	$ 24,594	$ (24)	$ 2,162
Beginning balance (in shares) at Dec. 31, 2011		6,852,309
Net income	3,124			3,124
Change in unrealized gain on securities available for sale	(170)					(170)
Stock awards amortized	141		141
Dividends ($0.65 per share in 2013 and $0.20 per share in 2012)	(1,397)			(1,397)
Stock issued	20,150	10	20,140
Stock issued (in shares)		992,000
Ending balance at Mar. 31, 2012	107,845	79	79,477	26,321	(24)	1,992
Ending balance (in shares) at Mar. 31, 2012		7,844,309
Beginning balance at Dec. 31, 2012	124,510	83	88,791	33,290	(232)	2,578
Beginning balance (in shares) at Dec. 31, 2012		8,278,354
Net income	5,688			5,688
Change in unrealized gain on securities available for sale	(884)					(884)
Stock awards amortized	182		182
Dividends ($0.65 per share in 2013 and $0.20 per share in 2012)	(5,354)			(5,354)
Ending balance at Mar. 31, 2013	$ 124,142	$ 83	$ 88,973	$ 33,624	$ (232)	$ 1,694
Ending balance (in shares) at Mar. 31, 2013		8,278,354

XML

Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 5,688	$ 3,124
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	949	821
Amortization of core deposit intangibles	176	142
Accretion of discount on securities, net	(1)	(29)
Stock grants amortized	182	141
FHLB stock dividends	(5)
Loss on sale of securities available for sale		3
Net gain on sale of premises and equipment	(1)	(1)
(Gain) loss recognized on other real estate transactions	(25)	53
Impairment of other real estate	448
Provision for loan losses	1,030	575
Increase in cash surrender value of life insurance	(81)	(82)
Loans originated for sale	(47,740)	(42,195)
Proceeds from sale of loans	50,812	42,731
Net change in other assets	(644)	908
Net change in other liabilities	(1,355)	(1,526)
Net cash provided by operating activities	9,433	4,665
Cash flows from investing activities:
Proceeds from maturities and pay downs of securities available for sale	6,137	18,670
Proceeds from sale of securities available for sale		2,078
Purchases of securities available for sale	(8,205)	(17,990)
Proceeds from maturities of certificates held in other banks	3,038
Net redemptions of FHLB stock		262
Net loans originated	(49,419)	(17,506)
Additions to premises and equipment	(3,279)	(1,498)
Proceeds from sale of premises and equipment	9	1
Proceeds from sale of other real estate owned	496	239
Capitalized additions to other real estate	(55)	(214)
Net cash used in investing activities	(51,278)	(15,958)
Cash flows from financing activities:
Net increase in demand deposits, NOW and savings accounts	8,975	32,685
Net increase (decrease) in time deposits	15,384	(6,011)
Net change in FHLB advances	(49)	(47)
Repayments of other borrowings	(835)	(566)
Proceeds from other borrowings		7,000
Proceeds from sale of common stock		20,150
Dividends paid	(3,030)	(1,397)
Net cash provided by financing activities	20,445	51,814
Net change in cash and cash equivalents	(21,400)	40,521
Cash and cash equivalents at beginning of period	102,290	56,654
Cash and cash equivalents at end of period	$ 80,890	$ 97,175

XML

Securities Available for Sale

3 Months Ended

Mar. 31, 2013

Securities Available for Sale

Note 3. Securities Available for Sale

Securities available for sale have been classified in the consolidated balance sheets according to management’s intent.

The amortized cost of securities and their approximate fair values at March31, 2013 and December31, 2012, are as follows:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Securities Available for Sale
March31, 2013:
U.S. treasuries	$	3,495	$	47	$	-		$	3,542
Government agency securities		68,635		477		(4	)		69,108
Obligations of state and municipal subdivisions		37,989		1,650		(537	)		39,102
Corporate bonds		2,098		15		-			2,113
Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA		629		46		-			675
	$	112,846	$	2,235	$	(541	)	$	114,540
December31, 2012:
U.S. treasuries	$	3,493	$	54	$	-		$	3,547
Government agency securities		69,636		575		-			70,211
Obligations of state and municipal subdivisions		34,908		2,123		(217	)		36,814
Corporate bonds		2,105		23		(25	)		2,103
Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA		635		45		-			680
	$	110,777	$	2,820	$	(242	)	$	113,355

Securities with a carrying amount of approximately $100,509 and $84,117 at March31, 2013 and December31, 2012, respectively, were pledged to secure public fund deposits.

Proceeds from sale of securities available for sale and gross gains and losses for the three months ended March31, 2013 and 2012 were as follows:

	ThreemonthsendedMarch31,
	2013		2012
Proceeds from sale	$	-	$	2,078
Gross gains	$	-	$	-
Gross losses	$	-	$	3

The amortized cost and estimated fair value of securities available for sale at March31, 2013, by contractual maturity, are shown below. Maturities of pass-through certificates will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	March31, 2013
	SecuritiesAvailableforSale
	Amortized Cost		Fair Value
Due in one year or less	$	3,497	$	3,534
Due from one year to five years		51,452		51,776
Due from five to ten years		23,906		24,290
Thereafter		33,362		34,265
		112,217		113,865
Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA		629		675
	$	112,846	$	114,540

Unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, as of March31, 2013 and December31, 2012, are summarized as follows:

	Value Impaired
	LessThan12Months					GreaterThan12Months					Total
Description of Securities	Estimated FairValue		Unrealized Losses				Estimated FairValue		Unrealized Losses			Estimated FairValue		Unrealized Losses
Securities Available for Sale
March31, 2013
Government agency securities	$	1,996	$	(4	)		$	-	$	-		$	1,996	$	(4	)
Obligations of state and municipal subdivisions		10,787		(537	)								10,787		(537	)
Residential Mortgage-Backed Securities Guaranteed by FNMA, GNMA, FHLMC and SBA		2		-				-		-			2		-
	$	12,785	$	(541	)		$	-	$	-		$	12,785	$	(541	)
December31, 2012
Obligations of state and municipal subdivisions	$	6,551	$	(217	)		$	-	$	-		$	6,551	$	(217	)
Corporate bonds		990		(25	)			-		-			990		(25	)
	$	7,541	$	(242	)		$	-	$	-		$	7,541	$	(242	)

Unrealized losses are generally due to changes in interest rates. The Company has the intent to hold these securities until maturity or a forecasted recovery and it is more likely than not that the Company will not have to sell the securities before the recovery of their cost basis. As such, the losses are deemed to be temporary.

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2013

Summary of Significant Accounting Policies

Note 1. Summary of Significant Accounting Policies

Nature of operations: Independent Bank Group, Inc. (“IBG”) through its subsidiary, Independent Bank (“Bank”), provides a full range of banking services to individual and corporate customers in the North and Central Texas areas through its various branch locations in those areas. The Company is engaged in traditional community banking activities, which include commercial and retail lending, deposit gathering, investment and liquidity management activities. The Company’s primary deposit products are demand deposits, money market accounts and certificates of deposit, and its primary lending products are commercial business and real estate, real estate mortgage and consumer loans.

Basis of Presentation: The accompanying consolidated financial statements include the accounts of IBG, its wholly-owned subsidiaries, the Bank and IBG Adriatica Holdings, Inc. (“Adriatica”) and the Bank’s wholly-owned subsidiaries, IBG Real Estate Holdings, Inc., and IBG Aircraft Acquisition, Inc. Adriatica was formed in 2011 to acquire a mixed use residential and retail real estate development in McKinney, Texas. All material intercompany transactions and balances have been eliminated in consolidation.

In addition, the Company wholly-owns IB Trust I (Trust I), IB Trust II (Trust II), IB Trust III (Trust III), IB Centex TrustI (Centex Trust I) and Community Group Statutory Trust I (CGI Trust I). The Trusts were formed to issue trust preferred securities and do not meet the criteria for consolidation.

The consolidated interim financial statements are unaudited, but include all adjustments, which, in the opinion of management are necessary for a fair presentation of the results of the periods presented. All such adjustments were of a normal and recurring nature. It is suggested that these financial statements be read in conjunction with the financial statements and the notes thereto in the Company’s registration statement on Form S-1. The consolidated statement of condition at December31, 2012 has been derived from the audited financial statements as of that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements.

Segment reporting: The Company has one reportable segment. The Company’s chief operating decision-maker uses consolidated results to make operating and strategic decisions.

Pro forma statements: In connection with the initial public offering discussed in Note 10, the Company terminated its S-Corporation status and became a taxable corporate entity (“C Corporation”) on April1, 2013.

In accordance with ASC 505-10-S99-3 of the FASB Accounting Standards Codification (formerly Topic 4B of the Staff Accounting Bulletins (SAB Topic 4B) issued by the Securities and Exchange Commission (SEC), the March 31, 2013 pro forma balance sheet presents a reclassification of retained earnings of the Company as a Sub-Chapter S Corporation to additional paid-in capital. That presentation assumes a constructive distribution to the owners followed by a contribution to the capital of the corporate entity. The transfer does not affect total stockholders’ equity.

In addition, the pro forma balance sheet includes the effect of recording a deferred tax asset resulting from the difference between the financial statement carrying amounts of assets and liabilities and their respective tax bases of the Company as a C Corporation. As of March31, 2013, the Company would record an estimated deferred tax asset of $581, which is reflected as an increase in retained earnings of $581.

Pro forma amounts for income tax expense and basic and diluted earnings per share have been presented assuming the Company’s effective tax rate of 32.8%, and 30.1%, for the three months ended March31, 2013 and 2012, as if it had been a C Corporation during those periods. The difference in the statutory rate of 35% and the Company’s effective rate is primarily due to nontaxable income earned on municipal securities and bank owned life insurance.

Earnings per share: Basic earnings per common share are net income divided by the weighted average number of common shares outstanding during the period. The unvested share-based payment awards that contain rights to nonforfeitable dividends are considered participating securities for this calculation. Diluted earnings per common share include the dilutive effect of additional potential common shares issuable under stock warrants. The dilutive effect of participating non vested common stock was not included as it was anti-dilutive. Proceeds from the assumed exercise of dilutive stock warrants are assumed to be used to repurchase common stock at the average market price.

	ThreemonthsendedMarch31,
	2013			2012
Basic earnings per share:
Net income	$	5,688		$	3,124
Less:
Undistributed earnings allocated to participating securities		6			36
Dividends paid on participating securities		93			31
Net income available to common shareholders	$	5,589		$	3,057
Weighted-average basic shares outstanding		8,125,279			7,027,330
Basic earnings per share	$	0.69		$	0.44
Diluted earnings per share:
Net income available to common shareholders	$	5,589		$	3,057
Total weighted-average basic shares outstanding		8,125,279			7,027,330
Add dilutive stock warrants		42,447			23,126
Total weighted-average diluted shares outstanding		8,167,726			7,050,456
Diluted earnings per share	$	0.68		$	0.43
Pro forma earnings per share:
Pro forma net income (unaudited)	$	3,822		$	2,184
Less undistributed earnings allocated to participating securities		(27	)		16
Less dividends paid on participating securities		93			31
Pro forma net income available to common shareholders after tax	$	3,756		$	2,137
Pro forma basic earnings per share	$	0.46		$	0.30
Pro forma diluted earnings per share	$	0.46		$	0.30
Anti-dilutive participating securities		118,572			98,898

Subsequent events: The Company has evaluated subsequent events through the time of filing these financial statements with the SEC and noted no subsequent events requiring financial statement recognition or disclosure, except as disclosed in Note 10.

Recent Accounting Standards: In February 2013, the FASB issued Accounting Standards Update (“ASU”) No. 2013-02, “Comprehensive Income (Topic 220)-Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income.”   ASU 2013-02 requires entities to present, either on the face of the statement of income or in the notes to the financial statements; significant amounts reclassified out of accumulated other comprehensive income.  Amntounts that are not required to be reclassified in their entirety to net income must be cross-referenced to other disclosures that provide additional detail.  The Company adopted this ASU in the first quarter of 2013, and it did not have a material impact on the financial statements.  The amount reclassified out of accumulated other comprehensive income for the three months ended March 31, 2012 was deemed insignificant and no such amount existed for the three months ended March 31, 2013.

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Aging of Past Due Loans by Loan Class (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable Recorded Investment Past Due [Line Items]
Loans 30-89 Days Past Due	$ 9,049	$ 5,374
Loans 90 or More Past Due	435	1,013
Total Past Due Loans	9,484	6,387
Current Loans	1,406,422	1,363,127
Ending balance	1,415,906	1,369,514
Commercial
Financing Receivable Recorded Investment Past Due [Line Items]
Loans 30-89 Days Past Due	1,898	845
Loans 90 or More Past Due	268
Total Past Due Loans	2,166	845
Current Loans	173,744	169,037
Ending balance	175,910	169,882
Commercial Real Estate, Land and Land Development
Financing Receivable Recorded Investment Past Due [Line Items]
Loans 30-89 Days Past Due	1,850	3,091
Loans 90 or More Past Due		62
Total Past Due Loans	1,850	3,153
Current Loans	772,408	742,670
Ending balance	774,258	745,823
Real estate, Residential
Financing Receivable Recorded Investment Past Due [Line Items]
Loans 30-89 Days Past Due	4,412	1,305
Loans 90 or More Past Due	121	360
Total Past Due Loans	4,533	1,665
Current Loans	327,996	304,522
Ending balance	332,529	306,187
Real estate, Single family interim construction
Financing Receivable Recorded Investment Past Due [Line Items]
Loans 90 or More Past Due		559
Total Past Due Loans		559
Current Loans	54,167	67,361
Ending balance	54,167	67,920
Agricultural
Financing Receivable Recorded Investment Past Due [Line Items]
Loans 30-89 Days Past Due	64	23
Loans 90 or More Past Due	16
Total Past Due Loans	80	23
Current Loans	36,726	40,104
Ending balance	36,806	40,127
Consumer
Financing Receivable Recorded Investment Past Due [Line Items]
Loans 30-89 Days Past Due	825	110
Loans 90 or More Past Due	30	32
Total Past Due Loans	855	142
Current Loans	41,177	39,360
Ending balance	42,032	39,502
Other Loan
Financing Receivable Recorded Investment Past Due [Line Items]
Current Loans	204	73
Ending balance	$ 204	$ 73

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Earning Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share [Line Items]
Net income	$ 5,688	$ 3,124
Undistributed earnings allocated to participating securities	6	36
Dividends paid on participating securities	93	31
Net income available to common shareholders	5,589	3,057
Weighted-average basic shares outstanding	8,125,279	7,027,330
Basic earnings per share	$ 0.69	$ 0.44
Diluted earnings per share:
Net income available to common shareholders	5,589	3,057
Weighted-average basic shares outstanding	8,125,279	7,027,330
Add dilutive stock warrants	42,447	23,126
Total weighted-average diluted shares outstanding	8,167,726	7,050,456
Diluted earnings per share	$ 0.68	$ 0.43
Pro forma earnings per share:
Less undistributed earnings allocated to participating securities	6	36
Less dividends paid on participating securities	93	31
Net income available to common shareholders	5,589	3,057
Anti-dilutive participating securities	118,572	98,898
Pro Forma
Earnings Per Share [Line Items]
Undistributed earnings allocated to participating securities	(27)	16
Dividends paid on participating securities	93	31
Net income available to common shareholders	3,756	2,137
Diluted earnings per share:
Net income available to common shareholders	3,756	2,137
Pro forma earnings per share:
Pro forma net income (unaudited)	3,822	2,184
Less undistributed earnings allocated to participating securities	(27)	16
Less dividends paid on participating securities	93	31
Net income available to common shareholders	$ 3,756	$ 2,137
Pro forma basic earnings per share	$ 0.46	$ 0.30
Pro forma diluted earnings per share	$ 0.46	$ 0.30

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Proceeds from Sale, Gross Gains and Losses of Securities Available for Sale (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Schedule Of Available For Sale Securities [Line Items]
Proceeds from sale		$ 2,078
Gross gains
Gross losses		$ 3

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Summary of Activity in Allowance for Loan Losses by Loan Class (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	$ 11,478	$ 9,060
Provision for loan losses	1,030	575
Charge-offs	(543)	(361)
Recoveries	19	54
Ending balance	11,984	9,328
Allowance for losses:
Individually evaluated for impairment	858		989
Collectively evaluated for impairment	11,126		10,489
Loans acquired with deteriorated credit quality
Ending balance	11,984	9,328
Loans:
Individually evaluated for impairment	13,023		14,806
Collectively evaluated for impairment	1,399,434		1,347,763
Acquired with deteriorated credit quality	3,449		6,945
Ending balance	1,415,906		1,369,514
Commercial
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	2,377	1,259
Provision for loan losses	(280)	(81)
Charge-offs		(6)
Recoveries	4
Ending balance	2,101	1,172
Allowance for losses:
Individually evaluated for impairment	405		165
Collectively evaluated for impairment	1,696		2,212
Loans acquired with deteriorated credit quality
Ending balance	2,101	1,172
Loans:
Individually evaluated for impairment	824		724
Collectively evaluated for impairment	173,617		166,965
Acquired with deteriorated credit quality	1,469
Ending balance	175,910		169,882
Commercial Real Estate, Land and Land Development
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	4,924	5,051
Provision for loan losses	2,082	265
Charge-offs	(531)	(203)
Recoveries	3	42
Ending balance	6,478	5,155
Allowance for losses:
Individually evaluated for impairment	325		644
Collectively evaluated for impairment	6,153		4,280
Loans acquired with deteriorated credit quality
Ending balance	6,478	5,155
Loans:
Individually evaluated for impairment	8,543		10,601
Collectively evaluated for impairment	764,857		732,581
Acquired with deteriorated credit quality	858		2,641
Ending balance	774,258		745,823
Real estate, Residential
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	2,965	1,964
Provision for loan losses	(548)	14
Charge-offs		(137)
Recoveries	3
Ending balance	2,420	1,841
Allowance for losses:
Individually evaluated for impairment	115		164
Collectively evaluated for impairment	2,305		2,801
Loans acquired with deteriorated credit quality
Ending balance	2,420	1,841
Loans:
Individually evaluated for impairment	3,576		3,376
Collectively evaluated for impairment	327,831		301,259
Acquired with deteriorated credit quality	1,122		1,552
Ending balance	332,529		306,187
Real estate, Single family interim construction
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	523	317
Provision for loan losses	(158)	17
Ending balance	365	334
Allowance for losses:
Collectively evaluated for impairment	365		523
Loans acquired with deteriorated credit quality
Ending balance	365	334
Loans:
Collectively evaluated for impairment	54,167		67,361
Acquired with deteriorated credit quality			559
Ending balance	54,167		67,920
Agricultural
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	159	209
Provision for loan losses	73	6
Ending balance	232	215
Allowance for losses:
Collectively evaluated for impairment	232		159
Loans acquired with deteriorated credit quality
Ending balance	232	215
Loans:
Collectively evaluated for impairment	36,806		40,127
Ending balance	36,806		40,127
Consumer
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	278	235
Provision for loan losses	59	80
Charge-offs	(12)	(15)
Recoveries	9	12
Ending balance	334	312
Allowance for losses:
Individually evaluated for impairment	13		16
Collectively evaluated for impairment	321		262
Loans acquired with deteriorated credit quality
Ending balance	334	312
Loans:
Individually evaluated for impairment	80		105
Collectively evaluated for impairment	41,952		39,397
Ending balance	42,032		39,502
Other Loan
Allowance for losses:
Loans acquired with deteriorated credit quality
Loans:
Collectively evaluated for impairment	204		73
Ending balance	204		73
Unallocated
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	252	25
Provision for loan losses	(198)	274
Ending balance	54	299
Allowance for losses:
Collectively evaluated for impairment	54		252
Loans acquired with deteriorated credit quality
Ending balance	$ 54	$ 299

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Stock Awards and Stock Warrants - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		1 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Apr. 30, 2013 2013 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense	$ 182	$ 141
Estimated future compensation expense	1,547
Remaining weighted average period	2 years 1 month 13 days
Common stock vesting period	5 years		5 years
Fair value of common stock awards vested	357	583
Shares reserved for future issuance			800,000
Common stock shares issued		14,240	112,320
Issuance of warrant	150,544
Purchase price of common stock, per share	$ 17.19
Warrant expiration period	2018-12
Warrant fair value	$ 475
Debt obligation, maturity year	2016

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Other Real Estate Remeasured and Reported at Fair Value (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Other Real Estate Remeasured [Line Items]
Carrying value of other real estate prior to remeasurement	$ 5,225	$ 2,282
Less charge-offs recognized in the allowance for loan losses at initial acquisition	(530)	(188)
Less subsequent write-downs included in noninterest expense	(448)	(94)
Adjusted carrying value of remeasured other real estate	$ 4,247	$ 2,000

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Financial Instruments with Off-Balance Sheet Risk (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Financial instruments with off-balance sheet risk	$ 190,606	$ 156,636
Commitments to Extend Credit
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Financial instruments with off-balance sheet risk	188,531	153,932
Standby Letters of Credit
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Financial instruments with off-balance sheet risk	$ 2,075	$ 2,704

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Securities available for sale, amortized cost	$ 112,846	$ 110,777
Allowance for loan losses	11,984	11,478
Common stock, Share Outstanding	8,278,354	8,278,354
Treasury stock, Share	8,647	8,647
Pro Forma
Securities available for sale, amortized cost	112,846
Allowance for loan losses	$ 11,984
Common stock, Share Outstanding	8,278,354
Treasury stock, Share	8,647

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2013

Commitments and Contingencies

Note 6. Commitments and Contingencies

The Company is involved in certain legal actions arising from normal business activities. Management believes that the outcome of such proceedings will not materially affect the financial position, results of operations or cash flows of the Company.

The Company leases certain branch facilities and other facilities. Rent expense related to these leases amounted to $209 and $62 for the three months ended March31, 2013 and 2012, respectively.

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Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net income	$ 5,688	$ 3,124
Other comprehensive loss:
Net change in unrealized gains on available for sale securities	(884)	(173)
Reclassification adjustment for loss on sale of securities available for sale		3
Total other comprehensive loss	(884)	(170)
Comprehensive income	$ 4,804	$ 2,954

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Reconciliation of Bank Equity Capital Under U.S. Generally Accepted Accounting Principles to Tier 1 Capital and Total Capital (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Reconciliation Of Gaap Equity To Tier One Capital And Total Capital For Regulatory Purposes [Line Items]
Equity capital	$ 124,142	$ 124,510	$ 107,845	$ 85,997
Independent Bank
Reconciliation Of Gaap Equity To Tier One Capital And Total Capital For Regulatory Purposes [Line Items]
Equity capital	165,528	166,711
Unrealized gains on securities, net	(1,694)	(2,578)
Disallowed goodwill and core deposit intangibles	(31,817)	(31,965)
Consolidated Tier 1 capital	132,017	132,168
Allowance for loan losses	11,984	11,478
Total capital	$ 144,001	$ 143,646

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and due from banks	$ 17,560	$ 30,920
Federal Reserve Excess Balance Account (“EBA”)	63,330	71,370
Cash and cash equivalents	80,890	102,290
Certificates of deposit held in other banks	4,682	7,720
Securities available for sale (amortized cost of $112,846, $112,846 and $110,777, respectively)	114,540	113,355
Loans held for sale	6,090	9,162
Loans, net of allowance for loan losses of $11,984, $11,984 and $11,478, respectively	1,403,922	1,358,036
Premises and equipment, net	72,903	70,581
Other real estate owned	8,459	6,819
Adriatica real estate	9,724	9,727
Goodwill	28,742	28,742
Core deposit intangible, net	3,075	3,251
Federal Home Loan Bank (“FHLB”) of Dallas stock and other restricted stock	8,170	8,165
Bank-owned life insurance (“BOLI”)	11,005	10,924
Deferred tax asset
Other assets	11,932	11,288
Total assets	1,764,134	1,740,060
Deposits:
Noninterest-bearing	243,235	259,664
Interest-bearing	1,171,864	1,131,076
Total deposits	1,415,099	1,390,740
FHLB advances	164,552	164,601
Notes payable	15,082	15,729
Other borrowings	12,064	12,252
Other borrowings, related parties	8,536	8,536
Junior subordinated debentures	18,147	18,147
Dividends payable	2,324
Other liabilities	4,188	5,545
Total liabilities	1,639,992	1,615,550
Commitments and contingencies
Stockholders’ equity:
Common stock (8,278,354 shares outstanding)	83	83
Additional paid-in capital	88,973	88,791
Retained earnings	33,624	33,290
Treasury stock, at cost ( 8,647 shares)	(232)	(232)
Accumulated other comprehensive income	1,694	2,578
Total stockholders’ equity	124,142	124,510
Total liabilities and stockholders’ equity	1,764,134	1,740,060
Pro Forma
Assets
Cash and due from banks	17,560
Federal Reserve Excess Balance Account (“EBA”)	63,330
Cash and cash equivalents	80,890
Certificates of deposit held in other banks	4,682
Securities available for sale (amortized cost of $112,846, $112,846 and $110,777, respectively)	114,540
Loans held for sale	6,090
Loans, net of allowance for loan losses of $11,984, $11,984 and $11,478, respectively	1,403,922
Premises and equipment, net	72,903
Other real estate owned	8,459
Adriatica real estate	9,724
Goodwill	28,742
Core deposit intangible, net	3,075
Federal Home Loan Bank (“FHLB”) of Dallas stock and other restricted stock	8,170
Bank-owned life insurance (“BOLI”)	11,005
Deferred tax asset	581
Other assets	11,932
Total assets	1,764,715
Deposits:
Noninterest-bearing	243,235
Interest-bearing	1,171,864
Total deposits	1,415,099
FHLB advances	164,552
Notes payable	15,082
Other borrowings	12,064
Other borrowings, related parties	8,536
Junior subordinated debentures	18,147
Dividends payable	2,324
Other liabilities	4,188
Total liabilities	1,639,992
Commitments and contingencies
Stockholders’ equity:
Common stock (8,278,354 shares outstanding)	83
Additional paid-in capital	122,597
Retained earnings	581
Treasury stock, at cost ( 8,647 shares)	(232)
Accumulated other comprehensive income	1,694
Total stockholders’ equity	124,723
Total liabilities and stockholders’ equity	$ 1,764,715

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Quantitative Information about Level Three Measurements (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Impaired Loans
Fair Value Of Assets And Liabilities Quantitative Disclosure [Line Items]
Assets, Fair Value	$ 2,017	$ 5,146
Valuation Technique	Collateral method
UnobservableInput(s)	Adjustments for selling costs
Other Real Estate
Fair Value Of Assets And Liabilities Quantitative Disclosure [Line Items]
Assets, Fair Value	4,247
Valuation Technique	Collateral method
UnobservableInput(s)	Adjustments for selling costs
Contingent Consideration
Fair Value Of Assets And Liabilities Quantitative Disclosure [Line Items]
Contingent consideration measured on a recurring basis	$ 290
Valuation Technique	Cash flows to be paid
UnobservableInput(s)	Expected payments

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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Summary Of Significant Accounting Policies [Line Items]
Deferred tax assets
Increase in retained earnings	581
Effective tax rates	32.80%	30.10%
Federal income tax at statutory rate	35.00%
Pro Forma
Summary Of Significant Accounting Policies [Line Items]
Deferred tax assets	$ 581

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Loans, Net and Allowance for Loan Losses (Tables)

3 Months Ended

Mar. 31, 2013

Compositions of Loans

Loans, net at March31, 2013 and December31, 2012, consisted of the following:

	March31,			December31,
	2013			2012
Commercial	$	175,910		$	169,882
Real estate:
Commercial		679,762			648,494
Commercial construction, land and land development		94,496			97,329
Residential		332,529			306,187
Single family interim construction		54,167			67,920
Agricultural		36,806			40,127
Consumer		42,032			39,502
Other		204			73
		1,415,906			1,369,514
Allowance for loan losses		(11,984	)		(11,478	)
	$	1,403,922		$	1,358,036

Summary of Activity in Allowance for Loan Losses by Loan Class

Following is a summary of the activity in the allowance for loan losses by loan class for the three months ended March31, 2013 and 2012 and total investment in loans at March31, 2013 and December31, 2012:

	Commercial			Commercial Real Estate, LandandLand Development			Residential RealEstate			Single-Family Interim Construction			Agricultural		Consumer			Other		Unallocated			Total
Three months ended March31, 2013
Balance at the beginning of period	$	2,377		$	4,924		$	2,965		$	523		$	159	$	278		$	-	$	252		$	11,478
Provision for loan losses		(280	)		2,082			(548	)		(158	)		73		59			-		(198	)		1,030
Charge-offs		-			(531	)		-			-			-		(12	)		-		-			(543	)
Recoveries		4			3			3			-			-		9			-		-			19
Balance at end of period	$	2,101		$	6,478		$	2,420		$	365		$	232	$	334		$	-	$	54		$	11,984
At March31, 2013
Allowance for losses:
Individually evaluated for impairment	$	405		$	325		$	115		$	-		$	-	$	13		$	-	$	-		$	858
Collectively evaluated for impairment		1,696			6,153			2,305			365			232		321			-		54			11,126
Loans acquired with deteriorated credit quality		-			-			-			-			-		-			-		-			-
Ending balance	$	2,101		$	6,478		$	2,420		$	365		$	232	$	334		$	-	$	54		$	11,984
Loans:
Individually evaluated for impairment	$	824		$	8,543		$	3,576		$	-		$	-	$	80		$	-	$	-		$	13,023
Collectively evaluated for impairment		173,617			764,857			327,831			54,167			36,806		41,952			204		-			1,399,434
Acquired with deteriorated credit quality		1,469			858			1,122			-			-		-			-		-			3,449
Ending balance	$	175,910		$	774,258		$	332,529		$	54,167		$	36,806	$	42,032		$	204	$	-		$	1,415,906
Three months ended March31, 2012
Balance at the beginning of period	$	1,259		$	5,051		$	1,964		$	317		$	209	$	235		$	-	$	25		$	9,060
Provision for loan losses		(81	)		265			14			17			6		80					274			575
Charge-offs		(6	)		(203	)		(137	)		-			-		(15	)		-		-			(361	)
Recoveries		-			42			-			-			-		12			-		-			54
Balance at end of period	$	1,172		$	5,155		$	1,841		$	334		$	215	$	312		$	-	$	299		$	9,328
At December31, 2012
Allowance for losses:
Individually evaluated for impairment	$	165		$	644		$	164		$	-		$	-	$	16		$	-	$	-		$	989
Collectively evaluated for impairment		2,212			4,280			2,801			523			159		262			-		252			10,489
Loans acquired with deteriorated credit quality		-			-			-			-			-		-			-		-			-
Ending balance	$	2,377		$	4,924		$	2,965		$	523		$	159	$	278		$	-	$	252		$	11,478
Loans:
Individually evaluated for impairment	$	724		$	10,601		$	3,376		$	-		$	-	$	105		$	-	$	-		$	14,806
Collectively evaluated for impairment		166,965			732,581			301,259			67,361			40,127		39,397			73		-			1,347,763
Acquired with deteriorated credit quality		-			2,641			1,552			559			-		-			-		-			6,945
Ending balance	$	169,882		$	745,823		$	306,187		$	67,920		$	40,127	$	39,502		$	73	$	-		$	1,369,514

Summary of Nonperforming Loans by Loan Class

Nonperforming loans by loan class at March31, 2013 and December31, 2012, were summarized as follows:

	Commercial		Commercial Real Estate, LandandLand Development		ResidentialRealEstate		Single-Family Interim Construction		Agricultural		Consumer			Other			Total
March 31, 2013:
Nonaccrual loans	$	657	$	235	$	781	$	-	$	-	$	54	$		-	$		1,727
Loans past due 90 days and still accruing		-		-		17		-		-		1			-			18
Troubled debt restructurings (not included in nonaccrual or loans past due and still accruing)		124		1,695		2,148		-		-		2			-			3,969
	$	781	$	1,930	$	2,946	$	-	$	-	$	57	$		-	$		5,714
December31, 2012:
Nonaccrual loans	$	218	$	4,857	$	894	$	560	$	-	$	70	$		-	$		6,599
Loans past due 90 days and still accruing		-		-		-		-		-		2			-			2
Troubled debt restructurings (not included in nonaccrual or loans past due and still accruing)		481		1,778		2,165		-		-		9			-			4,433
	$	699	$	6,635	$	3,059	$	560	$	-	$	81	$		-	$		11,034

Impaired Loans by Loan Class

Impaired loans by loan class at March31, 2013 and December31, 2012, were summarized as follows:

	Commercial		Commercial Real Estate, LandandLand Development			Residential RealEstate			Single-Family Interim Construction		Agricultural		Consumer			Other			Total
At March 31, 2013:
Impaired loans:
Impaired loans with an allowance for loan losses	$	749	$	2,787	$		1,454	$		-	$	-	$	54	$		-	$		5,044
Impaired loans with no allowance for loan losses		75		5,756			2,122			-		-		26			-			7,979
Total impaired loans	$	824	$	8,543	$		3,576	$		-	$	-	$	80	$		-	$		13,023
Unpaid principal balance of impaired loans	$	842	$	8,966	$		3,613	$		-	$	-	$	85	$		-	$		13,506
Allowance for loan losses on impaired loans	$	405	$	325	$		115	$		-	$	-	$	13	$		-	$		858
For the three months ended March 31, 2013:
Average recorded investment in impaired loans	$	774	$	9,572	$		3,476	$		-	$	-	$	93	$		-	$		13,915
Interest income recognized on impaired loans	$	9	$	106	$		46	$		-	$	-	$	2	$		-	$		163
For the three months ended March 31, 2012:
Average recorded investment in impaired loans	$	833	$	13,266	$		4,470	$		46	$	-	$	127	$		-	$		18,742
Interest income recognized on impaired loans	$	12	$	138	$		35	$		-	$	-	$	3	$		-	$		188
At December31, 2012:
Impaired loans:
Impaired loans with an allowance for loan losses	$	833	$	5,532	$		1,301	$		-	$	-	$	73	$		-	$		7,550
Impaired loans with no allowance for loan losses		80		5,069			2,075			-		-		32			-			7,256
Total impaired loans	$	724	$	10,601	$		3,376	$		-	$	-	$	105	$		-	$		14,806
Unpaid principal balance of impaired loans	$	741	$	11,140	$		3,475	$		-	$	-	$	122	$		-	$		15,478
Allowance for loan losses on impaired loans	$	165	$	644	$		164	$		-	$	-	$	16	$		-	$		989

Summary of Troubled Debt Restructurings

Following is a summary of troubled debt restructurings during the three months ended March31, 2013 and 2012 and loans that have been restructured during the previous twelve months that subsequently defaulted during the three months ended March31, 2013 and 2012:

.

	Commercial		Commercial Real Estate, LandandLand Development		Residential RealEstate		Single-Family Interim Construction			Agricultural			Consumer			Other		Total
Troubled debt restructurings during the three months ended March31, 2013:
Number of contracts		-		-		-			-			-			-		-		-
Pre-restructuring outstanding recorded investment	$	-	$	-	$	-		$	-		$	-		$	-	$	-	$	-
Post-restructuring outstanding recorded investment	$	-	$	-	$	-		$	-		$	-		$	-	$	-	$	-
Troubled debt restructurings during the previous twelve months that subsequently defaulted during the three months ended March 31, 2013:
Number of contracts		-		-		-			-			-			-		-		-
Recorded investment	$	-	$	-	$	-		$	-		$	-		$	-	$	-	$	-
Troubled debt restructurings during the three months ended March31, 2012
Number of contracts		1		-		1			-			-			1		-		3
Pre-restructuring outstanding recorded investment	$	350	$	-	$	94		$	-		$	-		$	26	$	-	$	470
Post-restructuring outstanding recorded investment	$	280	$	-	$	94		$	-		$	-		$	26	$	-	$	400
Troubled debt restructurings during the previous twelve months that subsequently defaulted during the three months ended March31, 2012:
Number of contracts		-		-		-			-			-			-		-		-
Recorded investment	$	-	$	-	$	-		$	-		$	-		$	-	$	-	$	-

Aging of Past Due Loans by Loan Class

The following table presents information regarding the aging of past due loans by loan class as of March31, 2013 and December31, 2012:

	Loans 30-89Days Past Due		Loans 90orMore Past Due		TotalPast DueLoans		Current Loans		Total Loans
March31, 2013
Commercial	$	1,898	$	268	$	2,166	$	173,744	$	175,910
Commercial real estate, land and land development		1,850		-		1,850		772,408		774,258
Residential real estate		4,412		121		4,533		327,996		332,529
Single-family Interim construction		-		-		-		54,167		54,167
Agricultural		64		16		80		36,726		36,806
Consumer		825		30		855		41,177		42,032
Other		-		-		-		204		204
	$	9,049	$	435	$	9,484	$	1,406,422	$	1,415,906
December31, 2012:
Commercial	$	845	$	-	$	845	$	169,037	$	169,882
Commercial real estate, land and land development		3,091		62		3,153		742,670		745,823
Residential real estate		1,305		360		1,665		304,522		306,187
Single-family Interim construction		-		559		559		67,361		67,920
Agricultural		23		-		23		40,104		40,127
Consumer		110		32		142		39,360		39,502
Other		-		-		-		73		73
	$	5,374	$	1,013	$	6,387	$	1,363,127	$	1,369,514

Summary of Loans by Credit Quality Indicator by Class

A summary of loans by credit quality indicator by class as of March31, 2013 and December31, 2012, is as follows:

	Pass (Rating1-4)		Pass/ Watch		OAEM		Substandard		Doubtful		Total
March31, 2013
Commercial	$	165,581	$	2,437	$	1,503	$	5,818	$	571	$	175,910
Commercial real estate, construction, land and land development		748,380		9,521		10,651		5,706		-		774,258
Residential real estate		323,587		3,731		489		4,615		107		332,529
Single-family Interim construction		54,167		-		-		-		-		54,167
Agricultural		36,461		302		-		43		-		36,806
Consumer		41,910		33		12		77		-		42,032
Other		204		-		-		-		-		204
	$	1,370,290	$	16,024	$	12,655	$	16,259	$	678	$	1,415,906
December31, 2012:
Commercial	$	165,842	$	2,824	$	203	$	1,013	$	-	$	169,882
Commercial real estate, construction, land and land development		716,243		11,502		8,804		9,274		-		745,823
Residential real estate		295,870		4,303		867		5,039		108		306,187
Single-family Interim construction		67,360		-		-		560		-		67,920
Agricultural		39,936		147		-		44		-		40,127
Consumer		39,315		60		13		114		-		39,502
Other		73		-		-		-		-		73
	$	1,324,639	$	18,836	$	9,887	$	16,044	$	108	$	1,369,514

Outstanding Balance and Related Carrying Amount of Purchased Impaired Loans

The outstanding balance and related carrying amount of purchased credit impaired loans at March31, 2013,December31, 2012, and acquisition date are as follows:

	March31, 2013			December31, 2012			Acquisition Date
Outstanding balance	$	4,546		$	9,178		$	10,839
Nonaccretable difference		(1,096	)		(2,232	)		(2,590	)
Accretable yield		(1	)		(1	)		(27	)
Carrying amount	$	3,449		$	6,945		$	8,222

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Loans Net and Allowance for Loan Losses - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Accounts Notes And Loans Receivable [Line Items]
Loan serviced for the benefit of others	$ 2,818	$ 3,775
Loans and leases receivable description	There were no concentrations of loans related to a single industry in excess of 10% of total loans.	There were no concentrations of loans related to a single industry in excess of 10% of total loans.
Troubled debt restructurings including non accrual	$ 4,559	$ 7,544
Agricultural
Accounts Notes And Loans Receivable [Line Items]
Loan to value ratio	80.00%
Loan, amortization period	20 years
Consumer | Maximum
Accounts Notes And Loans Receivable [Line Items]
Percentage of total loan portfolio	3.00%

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Nonvested Shares Activity (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Number of Shares
Nonvested shares, beginning balance	208,608	180,025
Granted during the period		14,240
Vested during the period	(16,317)	(28,698)
Nonvested shares, ending balance	192,291	165,567
Weighted Average Grant Date Price
Nonvested shares, beginning balance	$ 17.07	$ 15.64
Granted during the period		$ 20.31
Vested during the period	$ 11.94	$ 14.72
Nonvested shares, ending balance	$ 18.05	$ 16.35

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Impaired Loans by Loan Class (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Financing Receivable Impaired [Line Items]
Impaired loans with an allowance for loan losses	$ 5,044		$ 7,550
Impaired loans with no allowance for loan losses	7,979		7,256
Total impaired loans	13,023		14,806
Unpaid principal balance of impaired loans	13,506		15,478
Allowance for loan losses on impaired loans	858		989
Average recorded investment in impaired loans	13,915	18,742
Interest income recognized on impaired loans	163	188
Commercial
Financing Receivable Impaired [Line Items]
Impaired loans with an allowance for loan losses	749		833
Impaired loans with no allowance for loan losses	75		80
Total impaired loans	824		724
Unpaid principal balance of impaired loans	842		741
Allowance for loan losses on impaired loans	405		165
Average recorded investment in impaired loans	774	833
Interest income recognized on impaired loans	9	12
Commercial Real Estate, Land and Land Development
Financing Receivable Impaired [Line Items]
Impaired loans with an allowance for loan losses	2,787		5,532
Impaired loans with no allowance for loan losses	5,756		5,069
Total impaired loans	8,543		10,601
Unpaid principal balance of impaired loans	8,966		11,140
Allowance for loan losses on impaired loans	325		644
Average recorded investment in impaired loans	9,572	13,266
Interest income recognized on impaired loans	106	138
Real estate, Residential
Financing Receivable Impaired [Line Items]
Impaired loans with an allowance for loan losses	1,454		1,301
Impaired loans with no allowance for loan losses	2,122		2,075
Total impaired loans	3,576		3,376
Unpaid principal balance of impaired loans	3,613		3,475
Allowance for loan losses on impaired loans	115		164
Average recorded investment in impaired loans	3,476	4,470
Interest income recognized on impaired loans	46	35
Real estate, Single family interim construction
Financing Receivable Impaired [Line Items]
Average recorded investment in impaired loans		46
Consumer
Financing Receivable Impaired [Line Items]
Impaired loans with an allowance for loan losses	54		73
Impaired loans with no allowance for loan losses	26		32
Total impaired loans	80		105
Unpaid principal balance of impaired loans	85		122
Allowance for loan losses on impaired loans	13		16
Average recorded investment in impaired loans	93	127
Interest income recognized on impaired loans	$ 2	$ 3

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Securities Available for Sale - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule Of Available For Sale Securities [Line Items]
Carrying value of securities pledged	$ 100,509	$ 84,117

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Composition of Loans (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Accounts Notes And Loans Receivable [Line Items]
Loans, gross	$ 1,415,906	$ 1,369,514
Allowance for loan losses	(11,984)	(11,478)	(9,328)	(9,060)
Loans, net	1,403,922	1,358,036
Commercial
Accounts Notes And Loans Receivable [Line Items]
Loans, gross	175,910	169,882
Allowance for loan losses	(2,101)	(2,377)	(1,172)	(1,259)
Real estate, Commercial
Accounts Notes And Loans Receivable [Line Items]
Loans, gross	679,762	648,494
Real estate, Commercial construction, land and land development
Accounts Notes And Loans Receivable [Line Items]
Loans, gross	94,496	97,329
Real estate, Residential
Accounts Notes And Loans Receivable [Line Items]
Loans, gross	332,529	306,187
Allowance for loan losses	(2,420)	(2,965)	(1,841)	(1,964)
Real estate, Single family interim construction
Accounts Notes And Loans Receivable [Line Items]
Loans, gross	54,167	67,920
Allowance for loan losses	(365)	(523)	(334)	(317)
Agricultural
Accounts Notes And Loans Receivable [Line Items]
Loans, gross	36,806	40,127
Allowance for loan losses	(232)	(159)	(215)	(209)
Consumer
Accounts Notes And Loans Receivable [Line Items]
Loans, gross	42,032	39,502
Allowance for loan losses	(334)	(278)	(312)	(235)
Other
Accounts Notes And Loans Receivable [Line Items]
Loans, gross	$ 204	$ 73

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Financial Instruments with Off-Balance Sheet Risk

3 Months Ended

Mar. 31, 2013

Financial Instruments with Off-Balance Sheet Risk

Note 5. Financial Instruments with Off-Balance Sheet Risk

The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. The commitments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the balance sheet.

The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit is represented by the contractual amount of this instrument. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments.

At March31, 2013 and December31, 2012, the approximate amounts of these financial instruments were as follows:

	March31,		December31,
	2013		2012
Commitments to extend credit	$	188,531	$	153,932
Standby letters of credit		2,075		2,704
	$	190,606	$	156,636

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s credit worthiness on a case-by-case basis. The amount of collateral obtained if deemed necessary by the Company upon extension of credit is based on management’s credit evaluation of the counterparty. Collateral held varies but may include accounts receivable, inventory, farm crops, property, plant and equipment and income-producing commercial properties.

Letters of credit are written conditional commitments used by the Company to guarantee the performance of a customer to a third party. The Company’s policies generally require that letter of credit arrangements contain security and debt covenants similar to those contained in loan arrangements. In the event the customer does not perform in accordance with the terms of the agreement with the third party, the Company would be required to fund the commitment. The maximum potential amount of future payments the Company could be required to make is represented by the contractual amount shown in the table above. If the commitment is funded, the Company would be entitled to seek recovery from the customer. As of March31, 2013 and December31, 2012, no amounts have been recorded as liabilities for the Company’s potential obligations under these guarantees.

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Other Supplemental Cash Flow Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash transactions:
Interest expense paid	$ 3,250	$ 3,269
Noncash transactions:
Dividends declared but not paid	2,324
Transfers of loans to other real estate owned	2,503	270
Loans to facilitate the sale of other real estate owned		$ 20

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Summary of Loans by Credit Quality Indicator by Class (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable Recorded Investment [Line Items]
Loans, gross	$ 1,415,906	$ 1,369,514
Pass
Financing Receivable Recorded Investment [Line Items]
Loans, gross	1,370,290	1,324,639
Pass Watch
Financing Receivable Recorded Investment [Line Items]
Loans, gross	16,024	18,836
OAEM
Financing Receivable Recorded Investment [Line Items]
Loans, gross	12,655	9,887
Substandard
Financing Receivable Recorded Investment [Line Items]
Loans, gross	16,259	16,044
Doubtful
Financing Receivable Recorded Investment [Line Items]
Loans, gross	678	108
Commercial
Financing Receivable Recorded Investment [Line Items]
Loans, gross	175,910	169,882
Commercial | Pass
Financing Receivable Recorded Investment [Line Items]
Loans, gross	165,581	165,842
Commercial | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Loans, gross	2,437	2,824
Commercial | OAEM
Financing Receivable Recorded Investment [Line Items]
Loans, gross	1,503	203
Commercial | Substandard
Financing Receivable Recorded Investment [Line Items]
Loans, gross	5,818	1,013
Commercial | Doubtful
Financing Receivable Recorded Investment [Line Items]
Loans, gross	571
Commercial Real Estate, Land and Land Development
Financing Receivable Recorded Investment [Line Items]
Loans, gross	774,258	745,823
Commercial Real Estate, Land and Land Development | Pass
Financing Receivable Recorded Investment [Line Items]
Loans, gross	748,380	716,243
Commercial Real Estate, Land and Land Development | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Loans, gross	9,521	11,502
Commercial Real Estate, Land and Land Development | OAEM
Financing Receivable Recorded Investment [Line Items]
Loans, gross	10,651	8,804
Commercial Real Estate, Land and Land Development | Substandard
Financing Receivable Recorded Investment [Line Items]
Loans, gross	5,706	9,274
Real estate, Residential
Financing Receivable Recorded Investment [Line Items]
Loans, gross	332,529	306,187
Real estate, Residential | Pass
Financing Receivable Recorded Investment [Line Items]
Loans, gross	323,587	295,870
Real estate, Residential | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Loans, gross	3,731	4,303
Real estate, Residential | OAEM
Financing Receivable Recorded Investment [Line Items]
Loans, gross	489	867
Real estate, Residential | Substandard
Financing Receivable Recorded Investment [Line Items]
Loans, gross	4,615	5,039
Real estate, Residential | Doubtful
Financing Receivable Recorded Investment [Line Items]
Loans, gross	107	108
Real estate, Single family interim construction
Financing Receivable Recorded Investment [Line Items]
Loans, gross	54,167	67,920
Real estate, Single family interim construction | Pass
Financing Receivable Recorded Investment [Line Items]
Loans, gross	54,167	67,360
Real estate, Single family interim construction | Substandard
Financing Receivable Recorded Investment [Line Items]
Loans, gross		560
Agricultural
Financing Receivable Recorded Investment [Line Items]
Loans, gross	36,806	40,127
Agricultural | Pass
Financing Receivable Recorded Investment [Line Items]
Loans, gross	36,461	39,936
Agricultural | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Loans, gross	302	147
Agricultural | Substandard
Financing Receivable Recorded Investment [Line Items]
Loans, gross	43	44
Consumer
Financing Receivable Recorded Investment [Line Items]
Loans, gross	42,032	39,502
Consumer | Pass
Financing Receivable Recorded Investment [Line Items]
Loans, gross	41,910	39,315
Consumer | Pass Watch
Financing Receivable Recorded Investment [Line Items]
Loans, gross	33	60
Consumer | OAEM
Financing Receivable Recorded Investment [Line Items]
Loans, gross	12	13
Consumer | Substandard
Financing Receivable Recorded Investment [Line Items]
Loans, gross	77	114
Other Loan
Financing Receivable Recorded Investment [Line Items]
Loans, gross	204	73
Other Loan | Pass
Financing Receivable Recorded Investment [Line Items]
Loans, gross	$ 204	$ 73

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Stock Awards and Stock Warrants

3 Months Ended

Mar. 31, 2013

Stock Awards and Stock Warrants

Note 8. Stock Awards and Stock Warrants

The Company grants common stock awards to certain employees of the Company. The common stock vests five years from the date the award is granted and expense is recognized over the vesting period.

The following table summarizes the activity in nonvested shares for the three months ended March31, 2013 and 2012:

	Numberof Shares		Weighted Average GrantDate Price
Nonvested shares, December31, 2012	208,608		$	17.07
Granted during the period	-			-
Vested during the period	(16,317	)		11.94
Nonvested shares, March 31, 2013	192,291		$	18.05
Nonvested shares, December31, 2011	180,025		$	15.64
Granted during the period	14,240			20.31
Vested during the period	(28,698	)		14.72
Nonvested shares, March 31, 2012	165,567		$	16.35

Compensation expense related to these awards was $182 and $141 for the three months ended March31, 2013 and 2012, respectively, and is recorded in salaries and employee benefits in the accompanying consolidated statements of income. At March31, 2013, future compensation expense is estimated to be $1,547 and will be recognized over a remaining weighted average period of 2.12 years.

The fair value of common stock awards that vested during the three months ended March31, 2013 and 2012 was $357 and $583, respectively.

Shares granted prior to 2012 were issued at the date of grant and receive dividends. Shares issued under a revised plan in 2012 are not outstanding shares of the Company until they vest and do not receive dividends.

In connection with the initial public offering in April, (Note 10) the Board of Directors adopted a new 2013 Equity Incentive Plan. The Plan reserved 800,000 shares of common stock to be awarded by the Company’s compensation committee. The Company issued 112,320 shares under the Plan in April 2013. The shares are restricted and will vest over a five year employment period.

The Company has issued warrants representing the right to purchase 150,544 shares of Company stock at $17.19 per share to certain Company directors and shareholders. The warrants were issued in return for the shareholders agreement to repurchase the subordinated debt outstanding to an unaffiliated bank in the event of Company default. The warrants expire in December 2018 and were recorded at a fair value of $475 as of the date of the warrants issuance. The Company recorded this amount as debt origination costs and is amortizing it over the term of the debt, which matures in 2016.

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Loans, Net and Allowance for Loan Losses

3 Months Ended

Mar. 31, 2013

Loans, Net and Allowance for Loan Losses

Note 4. Loans, Net and Allowance for Loan Losses

Loans, net at March31, 2013 and December31, 2012, consisted of the following:

	March31,			December31,
	2013			2012
Commercial	$	175,910			$	169,882
Real estate:
Commercial		679,762				648,494
Commercial construction, land and land development		94,496				97,329
Residential		332,529				306,187
Single family interim construction		54,167				67,920
Agricultural		36,806				40,127
Consumer		42,032				39,502
Other		204				73
		1,415,906				1,369,514
Allowance for loan losses		(11,984	)			(11,478	)
	$	1,403,922			$	1,358,036

Loans serviced for the benefit of others at March31, 2013 and December31, 2012 amounted to $2,818, and $3,775, respectively.

The Company has certain lending policies and procedures in place that are designed to maximize loan income within an acceptable level of risk. Management reviews and approves these policies and procedures on a regular basis. A reporting system supplements the review process by providing management with frequent reports related to loan production, loan quality, concentrations of credit, loan delinquencies and non-performing and potential problem loans.

Commercial loans are underwritten after evaluating and understanding the borrower’s ability to operate profitably and prudently expand its business. The Company’s management examines current and projected cash flows to determine the ability of the borrower to repay their obligations as agreed. Commercial loans are primarily made based on the identified cash flows of the borrower and secondarily on the underlying collateral provided by the borrower. These cash flows, however, may not be as expected and the value of collateral securing the loans may fluctuate. Most commercial loans are secured by the assets being financed or other business assets such as accounts receivable or inventory and may incorporate a personal guarantee; however, some short term loans may be made on an unsecured basis.

Commercial real estate loans are subject to underwriting standards and processes similar to commercial loans. These loans are viewed primarily as cash flow loans and secondarily as loans secured by real estate. Commercial real estate lending typically involves higher loan principal amounts and the repayment of these loans is generally largely dependent on the successful operation of the property or the business conducted on the property securing the loan. Commercial real estate loans may be more adversely affected by conditions in the real estate markets or in the general economy. The properties securing the Company’s commercial real estate portfolio are diverse in terms of type and geographic location. Management monitors the diversification of the portfolio on a quarterly basis by type and geographic location. Management also tracks the level of owner occupied property versus non owner occupied property.

Land and commercial land development loans are underwritten using feasibility studies, independent appraisal reviews and financial analysis of the developers or property owners. Generally, borrowers must have a proven track record of success. Commercial construction loans are generally based upon estimates of cost and value of the completed project. These estimates may not be accurate. Commercial construction loans often involve the disbursement of substantial funds with the repayment dependent on the success of the ultimate project. Sources of repayment for these loans may be pre-committed permanent financing or sale of the developed property. The loans in this portfolio are geographically diverse and due to the increased risk are monitored closely by management and the board of directors on a quarterly basis.

Residential real estate and single family interim construction loans are underwritten primarily based on borrowers’ credit scores, documented income and minimum collateral values. Relatively small loan amounts are spread across many individual borrowers which minimizes risk in the residential portfolio. In addition, management evaluates trends in past dues and current economic factors on a regular basis.

Agricultural loans are collateralized by real estate and/or non-real estate. Agricultural real estate loans are primarily comprised of loans for the purchase of farmland. Loan-to-value ratios on loans secured by farmland generally do not exceed 80% and have amortization periods limited to twenty years. Agricultural non-real estate loans are generally comprised of term loans to fund the purchase of equipment, livestock and seasonal operating lines to cash grain farmers to plant and harvest corn and soybeans. Specific underwriting standards have been established for agricultural-related loans including the establishment of projections for each operating year based on industry developed estimates of farm input costs and expected commodity yields and prices. Operating lines are typically written for one year and secured by the crop and other farm assets as considered necessary.

Agricultural loans carry significant credit risks as they involve larger balances concentrated with single borrowers or groups of related borrowers. In addition, repayment of such loans depends on the successful operation or management of the farm property securing the loan or for which an operating loan is utilized. Farming operations may be affected by adverse weather conditions such as drought, hail or floods that can severely limit crop yields.

Consumer loans represent less than 3% of the outstanding total loan portfolio. Collateral consists primarily of automobiles and other personal assets. Credit score analysis is used to supplement the underwriting process.

Most of the Company’s lending activity occurs within the State of Texas, primarily in the north and central Texas regions. The majority of the Company’s portfolio consists of commercial and residential real estate loans. As of March31, 2013 and December31, 2012 there were no concentrations of loans related to a single industry in excess of 10% of total loans.

The allowance for loan losses is an amount that management believes will be adequate to absorb estimated losses relating to specifically identified loans, as well as probable credit losses inherent in the balance of the loan portfolio.

The allowance is derived from the following two components: 1) allowances established on individual impaired loans, which are based on a review of the individual characteristics of each loan, including the customer’s ability to repay the loan, the underlying collateral values, and the industry the customer operates in, and 2) allowances based on actual historical loss experience for the last three years for similar types of loans in the Company’s loan portfolio adjusted for primarily changes in the lending policies and procedures; collection, charge-off and recovery practices; nature and volume of the loan portfolio; volume and severity of nonperforming loans; existence and effect of any concentrations of credit and the level of such concentrations and current, national and local economic and business conditions. This second component also includes an unallocated allowance to cover uncertainties that could affect management’s estimate of probable losses. The unallocated allowance reflects the imprecision inherent in the underlying assumptions used in the methodologies for estimating this component.

The Company’s management continually evaluates the allowance for loan losses determined from the allowances established on individual loans and the amounts determined from historical loss percentages adjusted for the qualitative factors above. Should any of the factors considered by management change, the Company’s estimate of loan losses could also change and would affect the level of future provision expense. While the calculation of the allowance for loan losses utilizes management’s best judgment and all the information available, the adequacy of the allowance for loan losses is dependent on a variety of factors beyond the Company’s control, including, among other things, the performance of the entire loan portfolio, the economy, changes in interest rates and the view of regulatory authorities towards loan classifications.

In addition, regulatory agencies, as an integral part of their examination process, periodically review the Bank’s allowance for loan losses, and may require the Bank to make additions to the allowance based on their judgment about information available to them at the time of their examinations.

Loans requiring an allocated loan loss provision are generally identified at the servicing officer level based on review of weekly past due reports and/or the loan officer’s communication with borrowers. In addition, past due loans are discussed at weekly officer loan committee meetings to determine if classification is warranted. The Company’s credit department has implemented an internal risk based loan review process to identity potential internally classified loans that supplements the annual independent external loan review. The external review generally covers all loans greater than one million dollars. These reviews include analysis of borrower’s financial condition, payment histories and collateral values to determine if a loan should be internally classified. Generally, once classified, an impaired loan analysis is completed by the credit department to determine if the loan is impaired and the amount of allocated allowance required.

The Texas economy, specifically the Company’s lending area of north and central Texas, has generally performed better and appears to be recovering faster than certain other parts of the country. However, Texas is not completely immune to the problems associated with the U.S. economy. The risk of loss associated with all segments of the loan portfolio continues to be impacted by the prolonged economic downturn. The downturn in the economy and other risk factors are minimized by the Company’s underwriting standards which include the following principles: 1) financial strength of the borrower including strong earnings, high net worth, significant liquidity and acceptable debt to worth ratio, 2) managerial business competence, 3) ability to repay, 4) loan to value, 5) projected cash flow and 6) guarantor financial statements as applicable.

Following is a summary of the activity in the allowance for loan losses by loan class for the three months ended March31, 2013 and 2012 and total investment in loans at March31, 2013 and December31, 2012:

	Commercial			Commercial Real Estate, LandandLand Development			Residential RealEstate			Single-Family Interim Construction			Agricultural		Consumer			Other		Unallocated			Total
Three months ended March31, 2013
Balance at the beginning of period	$	2,377		$	4,924		$	2,965		$	523		$	159	$	278		$	-	$	252		$	11,478
Provision for loan losses		(280	)		2,082			(548	)		(158	)		73		59			-		(198	)		1,030
Charge-offs		-			(531	)		-			-			-		(12	)		-		-			(543	)
Recoveries		4			3			3			-			-		9			-		-			19
Balance at end of period	$	2,101		$	6,478		$	2,420		$	365		$	232	$	334		$	-	$	54		$	11,984
At March31, 2013
Allowance for losses:
Individually evaluated for impairment	$	405		$	325		$	115		$	-		$	-	$	13		$	-	$	-		$	858
Collectively evaluated for impairment		1,696			6,153			2,305			365			232		321			-		54			11,126
Loans acquired with deteriorated credit quality		-			-			-			-			-		-			-		-			-
Ending balance	$	2,101		$	6,478		$	2,420		$	365		$	232	$	334		$	-	$	54		$	11,984
Loans:
Individually evaluated for impairment	$	824		$	8,543		$	3,576		$	-		$	-	$	80		$	-	$	-		$	13,023
Collectively evaluated for impairment		173,617			764,857			327,831			54,167			36,806		41,952			204		-			1,399,434
Acquired with deteriorated credit quality		1,469			858			1,122			-			-		-			-		-			3,449
Ending balance	$	175,910		$	774,258		$	332,529		$	54,167		$	36,806	$	42,032		$	204	$	-		$	1,415,906
Three months ended March31, 2012
Balance at the beginning of period	$	1,259		$	5,051		$	1,964		$	317		$	209	$	235		$	-	$	25		$	9,060
Provision for loan losses		(81	)		265			14			17			6		80					274			575
Charge-offs		(6	)		(203	)		(137	)		-			-		(15	)		-		-			(361	)
Recoveries		-			42			-			-			-		12			-		-			54
Balance at end of period	$	1,172		$	5,155		$	1,841		$	334		$	215	$	312		$	-	$	299		$	9,328
At December31, 2012
Allowance for losses:
Individually evaluated for impairment	$	165		$	644		$	164		$	-		$	-	$	16		$	-	$	-		$	989
Collectively evaluated for impairment		2,212			4,280			2,801			523			159		262			-		252			10,489
Loans acquired with deteriorated credit quality		-			-			-			-			-		-			-		-			-
Ending balance	$	2,377		$	4,924		$	2,965		$	523		$	159	$	278		$	-	$	252		$	11,478
Loans:
Individually evaluated for impairment	$	724		$	10,601		$	3,376		$	-		$	-	$	105		$	-	$	-		$	14,806
Collectively evaluated for impairment		166,965			732,581			301,259			67,361			40,127		39,397			73		-			1,347,763
Acquired with deteriorated credit quality		-			2,641			1,552			559			-		-			-		-			6,945
Ending balance	$	169,882		$	745,823		$	306,187		$	67,920		$	40,127	$	39,502		$	73	$	-		$	1,369,514

Nonperforming loans by loan class at March31, 2013 and December31, 2012, were summarized as follows:

	Commercial		Commercial Real Estate, LandandLand Development		ResidentialRealEstate		Single-Family Interim Construction		Agricultural		Consumer		Other		Total
March 31, 2013:
Nonaccrual loans	$	657	$	235	$	781	$	-	$	-	$	54	$	-	$	1,727
Loans past due 90 days and still accruing		-		-		17		-		-		1		-		18
Troubled debt restructurings (not included in nonaccrual or loans past due and still accruing)		124		1,695		2,148		-		-		2		-		3,969
	$	781	$	1,930	$	2,946	$	-	$	-	$	57	$	-	$	5,714
December31, 2012:
Nonaccrual loans	$	218	$	4,857	$	894	$	560	$	-	$	70	$	-	$	6,599
Loans past due 90 days and still accruing		-		-		-		-		-		2		-		2
Troubled debt restructurings (not included in nonaccrual or loans past due and still accruing)		481		1,778		2,165		-		-		9		-		4,433
	$	699	$	6,635	$	3,059	$	560	$	-	$	81	$	-	$	11,034

Impaired loans are those loans where it is probable that all amounts due according to contractual terms of the loan agreement will not be collected. The Company has identified these loans through its normal loan review procedures. Impaired loans are measured based on 1) the present value of expected future cash flows discounted at the loans effective interest rate; 2) the loans observable market price; or 3) the fair value of collateral if the loan is collateral dependent. Substantially all of the Company’s impaired loans are measured at the fair value of the collateral. In limited cases, the Company may use other methods to determine the level of impairment of a loan if such loan is not collateral dependent.

Impaired loans by loan class at March31, 2013 and December31, 2012, were summarized as follows:

	Commercial		Commercial Real Estate, LandandLand Development		Residential RealEstate		Single-Family Interim Construction		Agricultural		Consumer		Other		Total
At March 31, 2013:
Impaired loans:
Impaired loans with an allowance for loan losses	$	749	$	2,787	$	1,454	$	-	$	-	$	54	$	-	$	5,044
Impaired loans with no allowance for loan losses		75		5,756		2,122		-		-		26		-		7,979
Total impaired loans	$	824	$	8,543	$	3,576	$	-	$	-	$	80	$	-	$	13,023
Unpaid principal balance of impaired loans	$	842	$	8,966	$	3,613	$	-	$	-	$	85	$	-	$	13,506
Allowance for loan losses on impaired loans	$	405	$	325	$	115	$	-	$	-	$	13	$	-	$	858
For the three months ended March 31, 2013:
Average recorded investment in impaired loans	$	774	$	9,572	$	3,476	$	-	$	-	$	93	$	-	$	13,915
Interest income recognized on impaired loans	$	9	$	106	$	46	$	-	$	-	$	2	$	-	$	163
For the three months ended March 31, 2012:
Average recorded investment in impaired loans	$	833	$	13,266	$	4,470	$	46	$	-	$	127	$	-	$	18,742
Interest income recognized on impaired loans	$	12	$	138	$	35	$	-	$	-	$	3	$	-	$	188
At December31, 2012:
Impaired loans:
Impaired loans with an allowance for loan losses	$	833	$	5,532	$	1,301	$	-	$	-	$	73	$	-	$	7,550
Impaired loans with no allowance for loan losses		80		5,069		2,075		-		-		32		-		7,256
Total impaired loans	$	724	$	10,601	$	3,376	$	-	$	-	$	105	$	-	$	14,806
Unpaid principal balance of impaired loans	$	741	$	11,140	$	3,475	$	-	$	-	$	122	$	-	$	15,478
Allowance for loan losses on impaired loans	$	165	$	644	$	164	$	-	$	-	$	16	$	-	$	989

Certain impaired loans have adequate collateral and do not require a related allowance for loan loss.

The Company will charge off that portion of any loan which management considers a loss. Commercial and real estate loans are generally considered for charge off when exposure beyond collateral coverage is apparent and when no further collection of the loss portion is anticipated based on the borrower’s financial condition.

The restructuring of a loan is considered a “troubled debt restructuring” if both 1) the borrower is experiencing financial difficulties and 2) the creditor has granted a concession. Concessions may include interest rate reductions or below market interest rates, principal forgiveness, extending amortization and other actions intended to minimize potential losses. A “troubled debt restructured” loan is identified as impaired and measured for credit impairment as of each reporting period in accordance with the guidance in
ASC 310-10-35.

Following is a summary of troubled debt restructurings during the three months ended March31, 2013 and 2012 and loans that have been restructured during the previous twelve months that subsequently defaulted during the three months ended March31, 2013 and 2012:

.

	Commercial		Commercial Real Estate, LandandLand Development		Residential RealEstate		Single-Family Interim Construction		Agricultural		Consumer		Other		Total
Troubled debt restructurings during the three months ended March31, 2013:
Number of contracts		-		-		-		-		-		-		-		-
Pre-restructuring outstanding recorded investment	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Post-restructuring outstanding recorded investment	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Troubled debt restructurings during the previous twelve months that subsequently defaulted during the three months ended March 31, 2013:
Number of contracts		-		-		-		-		-		-		-		-
Recorded investment	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-
Troubled debt restructurings during the three months ended March31, 2012
Number of contracts		1		-		1		-		-		1		-		3
Pre-restructuring outstanding recorded investment	$	350	$	-	$	94	$	-	$	-	$	26	$	-	$	470
Post-restructuring outstanding recorded investment	$	280	$	-	$	94	$	-	$	-	$	26	$	-	$	400
Troubled debt restructurings during the previous twelve months that subsequently defaulted during the three months ended March31, 2012:
Number of contracts		-		-		-		-		-		-		-		-
Recorded investment	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-

The recorded investment in troubled debt restructurings, including those on non accrual, was $4,559 and $7,544 as of March31, 2013 and December31, 2012.

Modifications primarily relate to extending the amortization periods of the loans and interest rate concessions. The majority of these loans were identified as impaired prior to restructuring; therefore the modifications did not materially impact the Company’s determination of the allowance for loan loss.

Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due.

The following table presents information regarding the aging of past due loans by loan class as of March31, 2013 and December31, 2012:

	Loans 30-89Days Past Due		Loans 90orMore Past Due		TotalPast DueLoans		Current Loans		Total Loans
March31, 2013
Commercial	$	1,898	$	268	$	2,166	$	173,744	$	175,910
Commercial real estate, land and land development		1,850		-		1,850		772,408		774,258
Residential real estate		4,412		121		4,533		327,996		332,529
Single-family Interim construction		-		-		-		54,167		54,167
Agricultural		64		16		80		36,726		36,806
Consumer		825		30		855		41,177		42,032
Other		-		-		-		204		204
	$	9,049	$	435	$	9,484	$	1,406,422	$	1,415,906
December31, 2012:
Commercial	$	845	$	-	$	845	$	169,037	$	169,882
Commercial real estate, land and land development		3,091		62		3,153		742,670		745,823
Residential real estate		1,305		360		1,665		304,522		306,187
Single-family Interim construction		-		559		559		67,361		67,920
Agricultural		23		-		23		40,104		40,127
Consumer		110		32		142		39,360		39,502
Other		-		-		-		73		73
	$	5,374	$	1,013	$	6,387	$	1,363,127	$	1,369,514

The Company’s internal classified report is segregated into the following categories: 1) Pass/Watch, 2)Other Assets Especially Mentioned (OAEM), 3) Substandard and 4) Doubtful. The loans placed in the Pass/Watch category reflect the Company’s opinion that the loans reflect potential weakness which requires monitoring on a more frequent basis. The loans in the OAEM category reflect the Company’s opinion that the credit contains weaknesses which represent a greater degree of risk and warrant extra attention. These loans are reviewed monthly in the officers and directors loan committee meetings to determine if a change in category is warranted. The loans placed in the Substandard category are considered to be potentially inadequately protected by the current debt service capacity of the borrower and/or the pledged collateral. These credits, even if apparently protected by collateral value, have shown weakness related to adverse financial, managerial, economic, market or political conditions which may jeopardize repayment of principal and interest. There is possibility that some future loss could be sustained by the Company if such weakness is not corrected. The Doubtful category includes loans that are in default or principal exposure is probable. Substandard and Doubtful loans are individually evaluated to determine if they should be classified as impaired and an allowance is allocated if deemed necessary under ASC 310-10.

The loans that are not impaired are included with the remaining “pass” credits in determining the portion of the allowance for loan loss based on historical loss experience and other qualitative factors. The portfolio is segmented into categories including: commercial loans, consumer loans, commercial real estate loans, residential real estate loans and agricultural loans. The adjusted historical loss percentage is applied to each category. Each category is then added together to determine the allowance allocated under ASC 450-20.

A summary of loans by credit quality indicator by class as of March31, 2013 and December31, 2012, is as follows:

	Pass (Rating1-4)		Pass/ Watch		OAEM		Substandard		Doubtful		Total
March31, 2013
Commercial	$	165,581	$	2,437	$	1,503	$	5,818	$	571	$	175,910
Commercial real estate, construction, land and land development		748,380		9,521		10,651		5,706		-		774,258
Residential real estate		323,587		3,731		489		4,615		107		332,529
Single-family Interim construction		54,167		-		-		-		-		54,167
Agricultural		36,461		302		-		43		-		36,806
Consumer		41,910		33		12		77		-		42,032
Other		204		-		-		-		-		204
	$	1,370,290	$	16,024	$	12,655	$	16,259	$	678	$	1,415,906
December31, 2012:
Commercial	$	165,842	$	2,824	$	203	$	1,013	$	-	$	169,882
Commercial real estate, construction, land and land development		716,243		11,502		8,804		9,274		-		745,823
Residential real estate		295,870		4,303		867		5,039		108		306,187
Single-family Interim construction		67,360		-		-		560		-		67,920
Agricultural		39,936		147		-		44		-		40,127
Consumer		39,315		60		13		114		-		39,502
Other		73		-		-		-		-		73
	$	1,324,639	$	18,836	$	9,887	$	16,044	$	108	$	1,369,514

The Company acquired certain loans which experienced credit deterioration since origination (“purchased credit impaired (PCI) loans”). Accretion on PCI loans is based on estimated future cash flows, regardless of contractual maturity.

The outstanding balance and related carrying amount of purchased credit impaired loans at March31, 2013,December31, 2012, and acquisition date are as follows:

	March31, 2013			December31, 2012			Acquisition Date
Outstanding balance	$	4,546		$	9,178		$	10,839
Nonaccretable difference		(1,096	)		(2,232	)		(2,590	)
Accretable yield		(1	)		(1	)		(27	)
Carrying amount	$	3,449		$	6,945		$	8,222

There was no provision for loan losses or activity in the allowance for loan losses established after the acquisition date through March31, 2013 for purchased credit impaired loans.

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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Dividends paid, Per share	$ 0.65	$ 0.20

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Carrying Amount and Estimated Fair Value of Financial Instruments (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk	$ 190,606	$ 156,636
Carrying (Reported) Amount, Fair Value Disclosure
Financial assets:
Cash and cash equivalents	80,890	102,290
Certificates of deposit held in other banks	4,682	7,720
Securities available for sale	114,540	113,355
Loans held for sale	6,090	9,162
Loans, net	1,403,922	1,358,036
FHLB of Dallas stock and other restricted stock	8,170	8,165
Accrued interest receivable	4,639	4,647
Financial liabilities:
Deposits	1,415,099	1,390,740
Accrued interest payable	696	740
FHLB advances	164,552	164,601
Notes payable	15,082	15,729
Other borrowings	20,600	20,788
Junior subordinated debentures	18,147	18,147
Contingent consideration	290	290
Estimate of Fair Value, Fair Value Disclosure
Financial assets:
Cash and cash equivalents	80,890	102,290
Certificates of deposit held in other banks	4,682	7,720
Securities available for sale	114,540	113,355
Loans held for sale	6,090	9,162
Loans, net	1,438,072	1,420,577
FHLB of Dallas stock and other restricted stock	8,170	8,165
Accrued interest receivable	4,639	4,647
Financial liabilities:
Deposits	1,417,265	1,399,373
Accrued interest payable	696	740
FHLB advances	167,343	170,239
Notes payable	15,082	15,729
Other borrowings	20,758	20,970
Junior subordinated debentures	18,114	18,114
Contingent consideration	290	290
Commitments to Extend Credit
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk	188,531	153,932
Commitments to Extend Credit | Carrying (Reported) Amount, Fair Value Disclosure
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk
Commitments to Extend Credit | Estimate of Fair Value, Fair Value Disclosure
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk
Standby Letters of Credit
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk	2,075	2,704
Standby Letters of Credit | Carrying (Reported) Amount, Fair Value Disclosure
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk
Standby Letters of Credit | Estimate of Fair Value, Fair Value Disclosure
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	80,890	102,290
Certificates of deposit held in other banks
Securities available for sale
Loans held for sale
Loans, net
FHLB of Dallas stock and other restricted stock
Accrued interest receivable
Financial liabilities:
Deposits
Accrued interest payable
FHLB advances
Notes payable
Other borrowings
Junior subordinated debentures
Contingent consideration
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commitments to Extend Credit
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk
Quoted Prices in Active Markets for Identical Assets (Level 1) | Standby Letters of Credit
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk
Significant Other Observable Inputs (Level 2)
Financial assets:
Cash and cash equivalents
Certificates of deposit held in other banks	4,682	7,720
Securities available for sale	114,540	113,355
Loans held for sale	6,090	9,162
Loans, net	1,433,886	1,414,016
FHLB of Dallas stock and other restricted stock	8,170	8,165
Accrued interest receivable	4,639	4,647
Financial liabilities:
Deposits	1,417,265	1,399,373
Accrued interest payable	696	740
FHLB advances	167,343	170,239
Notes payable	15,082	15,729
Other borrowings	20,758	20,970
Junior subordinated debentures	18,114	18,114
Contingent consideration
Significant Other Observable Inputs (Level 2) | Commitments to Extend Credit
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk
Significant Other Observable Inputs (Level 2) | Standby Letters of Credit
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk
Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents
Certificates of deposit held in other banks
Securities available for sale
Loans held for sale
Loans, net	4,186	6,561
FHLB of Dallas stock and other restricted stock
Accrued interest receivable
Financial liabilities:
Deposits
Accrued interest payable
FHLB advances
Notes payable
Other borrowings
Junior subordinated debentures
Contingent consideration	290	290
Significant Unobservable Inputs (Level 3) | Commitments to Extend Credit
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk
Significant Unobservable Inputs (Level 3) | Standby Letters of Credit
Off-balance sheet assets (liabilities):
Financial instruments with off-balance sheet risk

XML

Assets and Liabilities at Fair Value on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
U.S. treasuries
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis	$ 3,542	$ 3,547
Government agency securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis	69,108	70,211
Obligations of state and municipal subdivisions
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis	39,102	36,814
Corporate bonds
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis	2,113	2,103
Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis	675	680
Contingent Consideration
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Contingent consideration measured on a recurring basis	290	290
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Contingent consideration measured on a recurring basis
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. treasuries
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis
Quoted Prices in Active Markets for Identical Assets (Level 1) | Government agency securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis
Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of state and municipal subdivisions
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis
Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate bonds
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis
Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis
Quoted Prices in Active Markets for Identical Assets (Level 1) | Contingent Consideration
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Contingent consideration measured on a recurring basis
Significant Other Observable Inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Contingent consideration measured on a recurring basis
Significant Other Observable Inputs (Level 2) | U.S. treasuries
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis	3,542	3,547
Significant Other Observable Inputs (Level 2) | Government agency securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis	69,108	70,211
Significant Other Observable Inputs (Level 2) | Obligations of state and municipal subdivisions
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis	39,102	36,814
Significant Other Observable Inputs (Level 2) | Corporate bonds
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis	2,113	2,103
Significant Other Observable Inputs (Level 2) | Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis	675	680
Significant Other Observable Inputs (Level 2) | Contingent Consideration
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Contingent consideration measured on a recurring basis
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Contingent consideration measured on a recurring basis	290	290
Significant Unobservable Inputs (Level 3) | U.S. treasuries
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis
Significant Unobservable Inputs (Level 3) | Government agency securities
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis
Significant Unobservable Inputs (Level 3) | Obligations of state and municipal subdivisions
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis
Significant Unobservable Inputs (Level 3) | Corporate bonds
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis
Significant Unobservable Inputs (Level 3) | Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities available for sale measured on a recurring basis
Significant Unobservable Inputs (Level 3) | Contingent Consideration
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Contingent consideration measured on a recurring basis	$ 290	$ 290

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Amortized Cost and Estimated Fair Value of Securities Available for Sale by Contractual Maturity (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule Of Available For Sale Securities [Line Items]
Due in one year or less, securities available for sale, amortized cost	$ 3,497
Due from one year to five years, securities available for sale, amortized cost	51,452
Due from five to ten years, securities available for sale, amortized cost	23,906
Thereafter, securities available for sale, amortized cost	33,362
Available-for-sale Debt Securities, Amortized Cost Basis, Total	112,217
Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA, amortized cost	629
Securities available for sale, amortized cost	112,846	110,777
Due in one year or less, securities available for sale, fair value	3,534
Due from one year to five years, securities available for sale, fair value	51,776
Due from five to ten years, securities available for sale, fair value	24,290
Due after ten years, securities available for sale, fair value	34,265
Available-for-sale Debt Securities, Fair Value, Total	113,865
Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA, fair value	675
Fair Value	$ 114,540	$ 113,355

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Subsequent Events - Stock Offering - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended			1 Months Ended
	Feb. 28, 2013	Mar. 31, 2012	Mar. 31, 2013	Dec. 31, 2012	Apr. 30, 2013 Subsequent Event	Apr. 30, 2013 Subsequent Event Commercial Bank	Apr. 30, 2013 Subsequent Event Individual Counterparty
Subsequent Event [Line Items]
Stock issued (in shares)					3,680,000
Common stock shares issued, price per share					$ 26
Proceeds from sale of common stock		$ 20,150			$ 87,000
Deferred transaction costs			998
Stock split ratio	3.2
Common stock, par value	$ 0.01			$ 1
Repayment of notes payable from Adriatica					3,457
Senior notes repaid					11,625
Subordinate debt repaid						2,812	1,223
Total debt repaid					$ 19,117

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2013

Basis of Presentation

Basis of Presentation: The accompanying consolidated financial statements include the accounts of IBG, its wholly-owned subsidiaries, the Bank and IBG Adriatica Holdings, Inc. (“Adriatica”) and the Bank’s wholly-owned subsidiaries, IBG Real Estate Holdings, Inc., and IBG Aircraft Acquisition, Inc. Adriatica was formed in 2011 to acquire a mixed use residential and retail real estate development in McKinney, Texas. All material intercompany transactions and balances have been eliminated in consolidation.

In addition, the Company wholly-owns IB Trust I (Trust I), IB Trust II (Trust II), IB Trust III (Trust III), IB Centex TrustI (Centex Trust I) and Community Group Statutory Trust I (CGI Trust I). The Trusts were formed to issue trust preferred securities and do not meet the criteria for consolidation.

The consolidated interim financial statements are unaudited, but include all adjustments, which, in the opinion of management are necessary for a fair presentation of the results of the periods presented. All such adjustments were of a normal and recurring nature. It is suggested that these financial statements be read in conjunction with the financial statements and the notes thereto in the Company’s registration statement on Form S-1. The consolidated statement of condition at December31, 2012 has been derived from the audited financial statements as of that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements.

Segment Reporting

Segment reporting: The Company has one reportable segment. The Company’s chief operating decision-maker uses consolidated results to make operating and strategic decisions.

Pro Forma Statements

Pro forma statements: In connection with the initial public offering discussed in Note 10, the Company terminated its S-Corporation status and became a taxable corporate entity (“C Corporation”) on April1, 2013.

In accordance with ASC 505-10-S99-3 of the FASB Accounting Standards Codification (formerly Topic 4B of the Staff Accounting Bulletins (SAB Topic 4B) issued by the Securities and Exchange Commission (SEC), the March 31, 2013 pro forma balance sheet presents a reclassification of retained earnings of the Company as a Sub-Chapter S Corporation to additional paid-in capital. That presentation assumes a constructive distribution to the owners followed by a contribution to the capital of the corporate entity. The transfer does not affect total stockholders’ equity.

In addition, the pro forma balance sheet includes the effect of recording a deferred tax asset resulting from the difference between the financial statement carrying amounts of assets and liabilities and their respective tax bases of the Company as a C Corporation. As of March31, 2013, the Company would record an estimated deferred tax asset of $581, which is reflected as an increase in retained earnings of $581.

Pro forma amounts for income tax expense and basic and diluted earnings per share have been presented assuming the Company’s effective tax rate of 32.8%, and 30.1%, for the three months ended March31, 2013 and 2012, as if it had been a C Corporation during those periods. The difference in the statutory rate of 35% and the Company’s effective rate is primarily due to nontaxable income earned on municipal securities and bank owned life insurance.

Earnings Per Share

Earnings per share: Basic earnings per common share are net income divided by the weighted average number of common shares outstanding during the period. The unvested share-based payment awards that contain rights to nonforfeitable dividends are considered participating securities for this calculation. Diluted earnings per common share include the dilutive effect of additional potential common shares issuable under stock warrants. The dilutive effect of participating non vested common stock was not included as it was anti-dilutive. Proceeds from the assumed exercise of dilutive stock warrants are assumed to be used to repurchase common stock at the average market price.

Subsequent Events

Subsequent events: The Company has evaluated subsequent events through the time of filing these financial statements with the SEC and noted no subsequent events requiring financial statement recognition or disclosure, except as disclosed in Note 10.

Recent Accounting Standards

Recent Accounting Standards: In February 2013, the FASB issued Accounting Standards Update (“ASU”) No. 2013-02, “Comprehensive Income (Topic 220)-Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income.”   ASU 2013-02 requires entities to present, either on the face of the statement of income or in the notes to the financial statements; significant amounts reclassified out of accumulated other comprehensive income.  Amntounts that are not required to be reclassified in their entirety to net income must be cross-referenced to other disclosures that provide additional detail.  The Company adopted this ASU in the first quarter of 2013, and it did not have a material impact on the financial statements.  The amount reclassified out of accumulated other comprehensive income for the three months ended March 31, 2012 was deemed insignificant and no such amount existed for the three months ended March 31, 2013.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2013

Fair Value Measurements

Note 7. Fair Value Measurements

The fair value of an asset or liability is the price that would be received to sell that asset or paid to transfer that liability in an orderly transaction occurring in the principal market (or most advantageous market in the absence of a principal market) for such asset or liability. In estimating fair value, the Company utilizes valuation techniques that are consistent with the market approach, the income approach and/or the cost approach. Such valuation techniques are consistently applied. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability. ASC Topic 820, Fair Value Measurements and Disclosures, establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows:

Level1 Inputs – Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date.

Level2 Inputs – Inputs other than quoted prices included in Level1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, volatilities, prepayment speeds, credit risks, etc.) or inputs that are derived principally from or corroborated by market data by correlation or other means.

Level3 Inputs – Unobservable inputs for determining the fair values of assets or liabilities that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities.

The following table represents assets and liabilities reported on the consolidated balance sheets at their fair value on a recurring basis as of March31, 2013 and December31, 2012 by level within the ASC Topic820 fair value measurement hierarchy:

			Fair Value Measurements at ReportingDate Using
	Assets/ Liabilities Measuredat FairValue		QuotedPrices inActive Marketsfor IdenticalAssets (Level1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level3)
March31, 2013
Measured on a recurring basis:
Assets:
Investment securities available for sale:
U.S. treasuries	$	3,542	$	-	$	3,542		$	-
Government agency securities		69,108		-		69,108			-
Obligations of state and municipal subdivisions		39,102		-		39,102			-
Corporate bonds…………………………………………..		2,113		-		2,113			-
Residential mortgage backed securities guaranteed by FNMA, GNMA, FHLMC and SBA		675		-		675			-
Liabilities:
Contingent consideration		290							290
December31, 2012:
Measured on a recurring basis:
Assets:
Investment securities available for sale:
U.S. treasuries	$	3,547	$	-	$	3,547		$	-
Government agency securities		70,211		-		70,211			-
Obligations of state and municipal subdivisions		36,814		-		36,814			-
Corporate bonds……………………………………………		2,103		-		2,103			-
Residential mortgage backed securities guaranteed by FNMA, GNMA, FHLMC and SBA		680		-		680			-
Liabilities:
Contingent consideration		290							290

There were no transfers between Level 1 and Level 2 categorizations for the periods presented.

A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below.

Securities classified as available for sale are reported at fair value utilizing Level 2 inputs. For these securities, the Company obtains fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury and other yield curves, live trading levels, trade execution data, market consensus prepayment speeds, credit information and the security’s terms and conditions, among other things.

Contingent consideration, related to the acquisition of Town Center Bank in 2010, is reported at fair value using Level 3 inputs. The contingent consideration is remeasured on a recurring basis based on the expected present value of cash flows to be paid to the shareholders of the acquired institution using a market discount rate. The maximum amount payable at March31, 2013 is $290.

Balance as of December31, 2011	$	821
Settlements		-
Change in estimated payments to be made		6
Balance as of March31, 2012	$	827
Balance at December31, 2012	$	290
Settlements		-
Change in estimated payments to be made		-
Balance as of March31, 2013	$	290

In accordance with ASC Topic 820, certain assets and liabilities are measured at fair value on a nonrecurring basis; that is, the assets and liabilities are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment).

Impaired loans (loans which are not expected to repay all principal and interest amounts due in accordance with the original contractual terms) are measured at an observable market price (if available) or at the fair value of the loan’s collateral (if collateral dependent). Fair value of the loan’s collateral is determined by appraisals or independent valuation which is then adjusted for the estimated costs related to liquidation of the collateral. Management’s ongoing review of appraisal information may result in additional discounts or adjustments to valuation based upon more recent market sales activity or more current appraisal information derived from properties of similar type and/or locale. Therefore, the Company has categorized its impaired loans as Level3.

The following table presents the assets carried on the consolidated balance sheet by caption and by level in the fair value hierarchy at March31, 2013 and December31, 2012, for which a nonrecurring change in fair value has been recorded:

			FairValueMeasurementsatReportingDateUsing
	Assets/ Liabilities Measured atFairValue		QuotedPrices inActive Marketsfor IdenticalAssets (Level1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level3)			PeriodEnded TotalLosses
March31, 2013:
Measured on a nonrecurring basis:
Assets:
Impaired loans	$	2,017	$	-	$	-	$	2,017	$		241
December31, 2012:
Measured on a nonrecurring basis:
Assets:
Impaired loans	$	5,146	$	-	$	-	$	5,146	$		187

The Company has no nonfinancial assets or nonfinancial liabilities measured at fair value on a recurring basis. Other real estate is measured at fair value on a nonrecurring basis (upon initial recognition or subsequent impairment). Other real estate is classified within Level 3 of the valuation hierarchy. When transferred from the loan portfolio, other real estate is adjusted to fair value less estimated selling costs and is subsequently carried at the lower of carrying value or fair value less estimated selling costs. The fair value is determined using an external appraisal process, discounted based on internal criteria.

The following table presents other real estate that was remeasured and reported at fair value:

	March31,			December31,
	2013			2012
Carrying value of other real estate prior to remeasurement	$	5,225		$	2,282
Less charge-offs recognized in the allowance for loan losses at initial acquisition		(530	)		(188	)
Less subsequent write-downs included in noninterest expense		(448	)		(94	)
Adjusted carrying value of remeasured other real estate	$	4,247		$	2,000

There were no transfers into or out of Level 3 categorization for the periods presented.

For Level 3 financial and nonfinancial assets measured at fair value at March 31, 2013, the significant unobservable inputs used in the fair value measurements are as follows:

Assets	FairValue	ValuationTechnique	Unobservable Input(s)	Range(Weighted Average)
Impaired loans	$2,017	Collateral method	Adjustments for selling costs	N/A
Other real estate	4,247	Collateral method	Adjustments for selling costs	N/A
Contingent consideration	290	Cash flows to be paid	Expected payments	N/A

The methods and assumptions used by the Company in estimating fair values of financial instruments as disclosed herein in accordance with ASC Topic 825, Financial Instruments, other than for those measured at fair value on a recurring and nonrecurring basis discussed above, are as follows:

Cash and cash equivalents: The carrying amounts of cash and cash equivalents approximate their fair value.

Certificates of deposit held in other banks: The carrying amount of certificates of deposit in other banks, which mature within one year, approximates fair value.

Securities available for sale: Fair values for securities are based on quoted market prices or other observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment spreads, credit information and the bond’s terms and conditions, among other things.

Loans and loans held for sale: For variable-rate loans that reprice frequently and have no significant changes in credit risk, fair values are based on carrying values. Fair values for certain mortgage loans (for example, one-to-four family residential), commercial real estate and commercial loans are estimated using discounted cash flow analyses, using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality.

Federal Home Loan Bank of Dallas and other restricted stock: The carrying value of restricted securities such as stock in the Federal Home Loan Bank of Dallas and Independent Bankers Financial Corporation approximates fair value.

Deposits: The fair values disclosed for demand deposits are, by definition, equal to the amount payable on demand at the reporting date (that is their carrying amounts). The carrying amounts of variable-rate certificates of deposit (CD’s) approximate their fair values at the reporting date. Fair values for fixed-rate CD’s are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits.

Federal Home Loan Bank advances, line of credit and federal funds purchased: The fair value of advances maturing within 90 days approximates carrying value. Fair value of other advances is based on the Company’s current borrowing rate for similar arrangements.

Notes payable and other borrowings: The fair values are based upon prevailing rates on similar debt in the market place.

Junior subordinated debentures: The fair value of junior subordinated debentures is estimated using discounted cash flow analyses based on the Company’s current incremental borrowing rates for similar types of borrowing arrangements.

Accrued interest: The carrying amounts of accrued interest approximate their fair values.

Contingent Consideration: The contingent consideration liability related to an acquisition is based on the expected present value of cash flows to be paid to the shareholders of the acquired institution using a market discount rate.

Off-balance sheet instruments: Commitments to extend credit and standby letters of credit have short maturities and therefore have no significant fair value.

The carrying amount, estimated fair value and the financial hierarchy of the Company’s financial instruments were as follows at March31, 2013 and December31, 2012:

						FairValueMeasurementsat ReportingDateUsing
	Carrying Amount		Estimated Fair Value			QuotedPrices in Active Marketsfor IdenticalAssets (Level 1)			Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level3)
March 31, 2013:
Financial assets:
Cash and cash equivalents	$	80,890	$	80,890	$		80,890	$		-	$		-
Certificates of deposit held in other banks		4,682		4,682			-			4,682			-
Securities available for sale		114,540		114,540			-			114,540			-
Loans held for sale		6,090		6,090			-			6,090			-
Loans, net		1,403,922		1,438,072			-			1,433,886			4,186
FHLB of Dallas stock and other restricted stock		8,170		8,170			-			8,170			-
Accrued interest receivable		4,639		4,639			-			4,639			-
Financial liabilities:													-
Deposits		1,415,099		1,417,265			-			1,417,265			-
Accrued interest payable		696		696			-			696			-
FHLB advances		164,552		167,343			-			167,343			-
Notes payable		15,082		15,082			-			15,082			-
Other borrowings		20,600		20,758			-			20,758			-
Junior subordinated debentures		18,147		18,114			-			18,114			-
Contingent consideration		290		290			-			-			290
Off-balance sheet assets (liabilities):
Commitments to extend credit		-		-			-			-			-
Standby letters of credit		-		-			-			-			-
December31, 2012:
Financial assets:
Cash and cash equivalents	$	102,290	$	102,290	$		102,290	$		-	$		-
Certificates of deposit held in other banks		7,720		7,720			-			7,720			-
Securities available for sale		113,355		113,355			-			113,355			-
Loans held for sale		9,162		9,162			-			9,162			-
Loans, net		1,358,036		1,420,577			-			1,414,016			6,561
FHLB of Dallas stock and other restricted stock		8,165		8,165			-			8,165			-
Accrued interest receivable		4,647		4,647			-			4,647			-
Financial liabilities:													-
Deposits		1,390,740		1,399,373			-			1,399,373			-
Accrued interest payable		740		740			-			740			-
FHLB advances		164,601		170,239			-			170,239			-
Notes payable		15,729		15,729			-			15,729			-
Other borrowings		20,788		20,970			-			20,970			-
Junior subordinated debentures		18,147		18,114			-			18,114			-
Contingent consideration		290		290			-			-			290
Off-balance sheet assets (liabilities):
Commitments to extend credit		-		-			-			-			-
Standby letters of credit		-		-			-			-			-

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Securities Available for Sale (Tables)

3 Months Ended

Mar. 31, 2013

Amortized Cost of Securities and Approximate Fair Values

The amortized cost of securities and their approximate fair values at March31, 2013 and December31, 2012, are as follows:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Securities Available for Sale
March31, 2013:
U.S. treasuries	$	3,495	$	47	$	-		$	3,542
Government agency securities		68,635		477		(4	)		69,108
Obligations of state and municipal subdivisions		37,989		1,650		(537	)		39,102
Corporate bonds		2,098		15		-			2,113
Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA		629		46		-			675
	$	112,846	$	2,235	$	(541	)	$	114,540
December31, 2012:
U.S. treasuries	$	3,493	$	54	$	-		$	3,547
Government agency securities		69,636		575		-			70,211
Obligations of state and municipal subdivisions		34,908		2,123		(217	)		36,814
Corporate bonds		2,105		23		(25	)		2,103
Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA		635		45		-			680
	$	110,777	$	2,820	$	(242	)	$	113,355

Proceeds from Sale, Gross Gains and Losses of Securities Available for Sale

Proceeds from sale of securities available for sale and gross gains and losses for the three months ended March31, 2013 and 2012 were as follows:

	ThreemonthsendedMarch31,
	2013		2012
Proceeds from sale	$	-	$	2,078
Gross gains	$	-	$	-
Gross losses	$	-	$	3

Amortized Cost and Estimated Fair Value of Securities Available for Sale by Contractual Maturity

The amortized cost and estimated fair value of securities available for sale at March31, 2013, by contractual maturity, are shown below. Maturities of pass-through certificates will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

	March31, 2013
	SecuritiesAvailableforSale
	Amortized Cost		Fair Value
Due in one year or less	$	3,497	$	3,534
Due from one year to five years		51,452		51,776
Due from five to ten years		23,906		24,290
Thereafter		33,362		34,265
		112,217		113,865
Residential mortgage-backed securities guaranteed by FNMA, GNMA, FHLMC and SBA		629		675
	$	112,846	$	114,540

Summary of Unrealized Losses and Fair Value Securities in Continuous Unrealized Loss Position

Unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, as of March31, 2013 and December31, 2012, are summarized as follows:

	Value Impaired
	LessThan12Months					GreaterThan12Months					Total
Description of Securities	Estimated FairValue		Unrealized Losses				Estimated FairValue		Unrealized Losses			Estimated FairValue		Unrealized Losses
Securities Available for Sale
March31, 2013
Government agency securities	$	1,996	$	(4	)		$	-	$	-		$	1,996	$	(4	)
Obligations of state and municipal subdivisions		10,787		(537	)								10,787		(537	)
Residential Mortgage-Backed Securities Guaranteed by FNMA, GNMA, FHLMC and SBA		2		-				-		-			2		-
	$	12,785	$	(541	)		$	-	$	-		$	12,785	$	(541	)
December31, 2012
Obligations of state and municipal subdivisions	$	6,551	$	(217	)		$	-	$	-		$	6,551	$	(217	)
Corporate bonds		990		(25	)			-		-			990		(25	)
	$	7,541	$	(242	)		$	-	$	-		$	7,541	$	(242	)

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Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2013

Earning Per Share

	ThreemonthsendedMarch31,
	2013			2012
Basic earnings per share:
Net income	$	5,688		$	3,124
Less:
Undistributed earnings allocated to participating securities		6			36
Dividends paid on participating securities		93			31
Net income available to common shareholders	$	5,589		$	3,057
Weighted-average basic shares outstanding		8,125,279			7,027,330
Basic earnings per share	$	0.69		$	0.44
Diluted earnings per share:
Net income available to common shareholders	$	5,589		$	3,057
Total weighted-average basic shares outstanding		8,125,279			7,027,330
Add dilutive stock warrants		42,447			23,126
Total weighted-average diluted shares outstanding		8,167,726			7,050,456
Diluted earnings per share	$	0.68		$	0.43
Pro forma earnings per share:
Pro forma net income (unaudited)	$	3,822		$	2,184
Less undistributed earnings allocated to participating securities		(27	)		16
Less dividends paid on participating securities		93			31
Pro forma net income available to common shareholders after tax	$	3,756		$	2,137
Pro forma basic earnings per share	$	0.46		$	0.30
Pro forma diluted earnings per share	$	0.46		$	0.30
Anti-dilutive participating securities		118,572			98,898

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Document and Entity Information	3 Months Ended
	Mar. 31, 2013	May 15, 2013
Document Information [Line Items]
Document Type	10-Q/A
Amendment Flag	false
Document Period End Date	Mar. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q1
Trading Symbol	IBTX
Entity Registrant Name	Independent Bank Group, Inc.
Entity Central Index Key	0001564618
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		12,062,027

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Statement of Cash Flows (Tables)

3 Months Ended

Mar. 31, 2013

Other Supplemental Cash Flow Information

Other supplemental cash flow information is presented below:

	ThreemonthsendedMarch31,
	2013		2012
Cash transactions:
Interest expense paid	$	3,250	$	3,269	0
Noncash transactions:
Dividends declared but not paid…………………………………………………….	$	2,324	$	-	0
Transfers of loans to other real estate owned	$	2,503	$	270	0
Loans to facilitate the sale of other real estate owned	$	-	$	20	0