Fair value is the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. The Corporation determines the fair value of financial instruments based on the fair value hierarchy. The Corporation maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. Observable inputs are inputs that market participants would use in pricing the asset or liability developed based on market data obtained from sources independent of the Corporation. Unobservable inputs are inputs that reflect the Corporation's assumptions that market participants would use in pricing the asset or liability based on the best information available in the circumstances, including assumptions about risk. Three levels of inputs are used to measure fair value. A financial instrument's level within the fair value hierarchy is based on the lowest level of input significant to the fair value measurement. Transfers between levels were recognized at the end of the reporting period for the year ended December 31, 2020.

Level 1: Valuations are based on quoted prices in active markets for identical assets or liabilities that the Corporation can access at the measurement date. Since valuations are based on quoted prices that are readily and regularly available in an active market, valuation of these products does not entail a significant degree of judgment.

Level 3: Valuations are based on inputs that are unobservable and significant to the overall fair value measurement. Assets and liabilities utilizing Level 3 inputs include: financial instruments whose value is determined using pricing models, discounted cash-flow methodologies, or similar techniques, as well as instruments for which the fair value calculation requires significant management judgment or estimation.

Where quoted prices are available in an active market for identical instruments, investment securities are classified within Level 1 of the valuation hierarchy. Level 1 investment securities include U.S. Treasury securities, most equity securities and money market mutual funds. Mutual funds are registered investment companies which are valued at net asset value of shares on a market exchange at the end of each trading day. Level 2 of the valuation hierarchy includes securities issued by U.S. Government sponsored enterprises, mortgage-backed securities, collateralized mortgage obligations, corporate and municipal bonds and certain equity securities. If quoted market prices are not available, then fair values are estimated by using pricing models, quoted prices of securities with similar characteristics or discounted cash flows. In cases where there is limited activity or less transparency around inputs to the valuation, investment securities are classified within Level 3 of the valuation hierarchy.

Fair values for securities are determined using independent pricing services and market-participating brokers. The Corporation's independent pricing service utilizes evaluated pricing models that vary by asset class and incorporate available trade, bid and other market information for structured securities, cash flow and, when available, loan performance data. Because many fixed income securities do not trade on a daily basis, the pricing service's evaluated pricing applications apply information as applicable through processes, such as benchmarking of like securities, sector groupings, and matrix pricing, to prepare evaluations. If at any time, the pricing service determines that it does have not sufficient verifiable information to value a particular security, the Corporation will utilize valuations from another pricing service. Management has a sufficient understanding of the third-party service's valuation models, assumptions and inputs used in determining the fair value of securities to enable management to maintain an appropriate system of internal control.

On a quarterly basis, the Corporation reviews changes, as submitted by the pricing service, in the market value of its security portfolio. Individual changes in valuations are reviewed for consistency with general interest rate movements and any known credit concerns for specific securities. If, upon the Corporation's review or in comparing with another service, a material difference between pricing evaluations were to exist, the Corporation may submit an inquiry to the current pricing service regarding the data used to determine the valuation of a particular security. If the Corporation determines there is market information that would support a different valuation than from the current pricing service's evaluation, the Corporation may utilize and change the security's valuation. There were no material differences in valuations noted at December 31, 2020.

The fair values of derivative financial instruments are based upon the estimated amount the Corporation would receive or pay to terminate the contracts or agreements, taking into account current interest rates and, when appropriate, the current creditworthiness of the counterparties. Interest rate swaps and mortgage banking derivative financial instruments are classified within Level 2 of the valuation hierarchy. Credit derivatives are valued based on credit worthiness of the underlying borrower which is a significant unobservable input and therefore classified in Level 3 of the valuation hierarchy.

One commercial loan associated with an interest rate swap is classified in Level 3 of the valuation hierarchy at December 31, 2020 since lending credit risk is not an observable input for this loan. The unrealized gain on the one loan was $8 thousand at December 31, 2020.

The Corporation estimates the fair value of the contingent consideration liability by using a discounted cash flow model of future contingent payments based on projected revenue related to the acquired business. The estimated fair value of the contingent consideration liability is reviewed on a quarterly basis and any valuation adjustments resulting from a change of estimated future contingent payments based on projected revenue of the acquired business affecting the contingent consideration liability will be recorded through noninterest expense. Due to the significant unobservable input related to the projected revenue, the contingent consideration liability is classified within Level 3 of the valuation hierarchy. An increase in the projected revenue may result in a higher fair value of the contingent consideration liability. Alternatively, a decrease in the projected revenue may result in a lower estimated fair value of the contingent consideration liability.


	At December 31, 2020
(Dollars in thousands)	Level 1		Level 2		Level 3		Assets/ Liabilities at Fair Value
Assets:
Available-for-sale securities:


State and political subdivisions	$	—	$	13,537	$	—	$	13,537
Residential mortgage-backed securities	—		114,163		—		114,163
Collateralized mortgage obligations	—		5,321		—		5,321
Corporate bonds	—		76,019		9,600		85,619
Total available-for-sale securities	—		209,040		9,600		218,640
Equity securities:
Equity securities - financial services industry	818		—		—		818
Money market mutual funds	2,461		—		—		2,461
Total equity securities	3,279		—		—		3,279
Loans*	—		—		187		187
Loans held for sale	—		37,039		—		37,039

Interest rate locks with customers*	—		2,894		—		2,894

Total assets	$	3,279	$	248,973	$	9,787	$	262,039
Liabilities:
Contingent consideration liability	$	—	$	—	$	55	$	55
Interest rate swaps*	—		541		—		541
Credit derivatives*	—		—		535		535
Forward loan sale commitments*	—		752		—		752
Total liabilities	$	—	$	1,293	$	590	$	1,883

The $9.6 million of Corporate bonds is comprised of one investment grade bond and the Corporation utilizes a third party to estimate the value. The value is derived from a discounted cash flow analysis which utilizes a probability of default input. The $535 thousand of credit derivatives liability represents the Credit Valuation Adjustment (CVA), which is obtained from real-time financial market data, of ninety-four interest rate swaps with a current notional amount of $643.6 million. The December 31, 2020 CVA assumes a zero-deal recovery percentage based on the most recent index credit curve.


	At December 31, 2019
(Dollars in thousands)	Level 1		Level 2		Level 3		Assets/ Liabilities at Fair Value
Assets:
Available-for-sale securities:

U.S. government corporations and agencies	$	—	$	300	$	—	$	300
State and political subdivisions	—		34,595		—		34,595
Residential mortgage-backed securities	—		118,460		—		118,460
Collateralized mortgage obligations	—		2,361		—		2,361
Corporate bonds	—		91,208		—		91,208
Total available-for-sale securities	—		246,924		—		246,924
Equity securities:
Equity securities - financial services industry	1,004		—		—		1,004
Money market mutual funds	1,619		—		—		1,619
Total equity securities	2,623		—		—		2,623
Loans*	—		—		317		317

Interest rate locks with customers*	—		399		—		399

Total assets	$	2,623	$	247,323	$	317	$	250,263
Liabilities:
Contingent consideration liability	$	—	$	—	$	160	$	160
Interest rate swaps*	—		249		—		249
Credit derivatives*	—		—		176		176
Forward loan sale commitments*	—		19		—		19
Total liabilities	$	—	$	268	$	336	$	604


	For the Year Ended December 31, 2020
(Dollars in thousands)	Balance at December 31, 2019		Additions		Payments received		(Decrease) Increase in value		Transfer from Level 3		Transfer into Level 3		Balance at December 31, 2020
Corporate bonds	$	—	$	—	$	—	$	(400)	$	—	$	10,000	$	9,600
Loans	317		—		(123)		(7)		—		—		187
Credit derivatives	(176)		(6,092)		—		5,733		—		—		(535)
Net total	$	141	$	(6,092)	$	(123)	$	5,326	$	—	$	10,000	$	9,252


	For the Year Ended December 31, 2019
(Dollars in thousands)	Balance at December 31, 2018		Additions		Payments received		Increase (decrease) in value		Transfer from Level 3		Transfer into Level 3		Balance at December 31, 2019
Corporate bonds	$	25,729	$	—	$	—	$	675	$	(26,404)	—		$	—
Loans	1,779		—		(1,461)		(1)		—		—		317
Credit derivatives	(72)		(1,454)		—		1,350		—		—		(176)
Net total	$	27,436	$	(1,454)	$	(1,461)	$	2,024	$	(26,404)	$	—	$	141

The following table presents the change in the balance of the contingent consideration liability related to acquisitions for which the Corporation utilized Level 3 inputs to determine fair value on a recurring basis for the years ended December 31, 2020 and 2019:


	For the Year Ended December 31, 2020
(Dollars in thousands)	Balance at December 31, 2019		Contingent Consideration from New Acquisition		Payment of Contingent Consideration		Adjustment of Contingent Consideration		Balance at December 31, 2020

Girard Partners	$	160	$	—	$	121	$	16	$	55

Total contingent consideration liability	$	160	$	—	$	121	$	16	$	55


	For the Year Ended December 31, 2019
(Dollars in thousands)	Balance at December 31, 2018		Contingent Consideration from New Acquisition		Payment of Contingent Consideration		Adjustment of Contingent Consideration		Balance at December 31, 2019

Girard Partners	$	259	$	—	$	129	$	30	$	160

Total contingent consideration liability	$	259	$	—	$	129	$	30	$	160

The Corporation may be required to periodically measure certain assets and liabilities at fair value on a non-recurring basis in accordance with GAAP. These adjustments to fair value usually result from the application of lower of cost or market accounting or changes in the value of loans held for investment analyzed on an individual basis. The following table represents assets measured at fair value on a non-recurring basis at December 31, 2020 and 2019:


	At December 31, 2019
(Dollars in thousands)	Level 1		Level 2		Level 3		Assets at Fair Value
Impaired loans held for investment	$	—	$	—	$	36,018	$	36,018
Impaired leases held for investment	—		—		277		277
Other real estate owned	—		—		516		516
Total	$	—	$	—	$	36,811	$	36,811

The following table presents assets and liabilities not measured at fair value on a recurring or non-recurring basis in the Corporation's consolidated balance sheet but for which the fair value is required to be disclosed at December 31, 2020 and 2019. The disclosed fair values are classified using the fair value hierarchy.


	At December 31, 2020
(Dollars in thousands)	Level 1		Level 2		Level 3		Fair Value		Carrying Amount
Assets:
Cash and short-term interest-earning assets	$	219,858	$	—	$	—	$	219,858	$	219,858
Held-to-maturity securities	—		156,325		—		156,325		151,257
Federal Home Loan Bank, Federal Reserve Bank and other stock	N/A		N/A		N/A		N/A		28,183
Net loans and leases held for investment	—		—		5,338,782		5,338,782		5,192,710
Servicing rights	—		—		6,783		6,783		6,408

Total assets	$	219,858	$	156,325	$	5,345,565	$	5,721,748	$	5,598,416
Liabilities:
Deposits:
Demand and savings deposits, non-maturity	$	4,678,940	$	—	$	—	$	4,678,940	$	4,678,940
Time deposits	—		574,018		—		574,018		563,775
Total deposits	4,678,940		574,018		—		5,252,958		5,242,715
Short-term borrowings	—		17,906		—		17,906		17,906
Long-term debt	—		112,968		—		112,968		110,000
Subordinated notes	—		190,045		—		190,045		183,515
Total liabilities	$	4,678,940	$	894,937	$	—	$	5,573,877	$	5,554,136


	At December 31, 2019
(Dollars in thousands)	Level 1		Level 2		Level 3		Fair Value		Carrying Amount
Assets:
Cash and short-term interest-earning assets	$	125,128	$	—	$	—	$	125,128	$	125,128
Held-to-maturity securities	—		194,886		—		194,886		192,052
Federal Home Loan Bank, Federal Reserve Bank and other stock	N/A		N/A		N/A		N/A		28,254
Loans held for sale	—		5,560		—		5,560		5,504
Net loans and leases held for investment	—		—		4,309,208		4,309,208		4,314,893
Servicing rights	—		—		9,340		9,340		6,626

Total assets	$	125,128	$	200,446	$	4,318,548	$	4,644,122	$	4,672,457
Liabilities:
Deposits:
Demand and savings deposits, non-maturity	$	3,754,065	$	—	$	—	$	3,754,065	$	3,754,065
Time deposits	—		609,387		—		609,387		606,010
Total deposits	3,754,065		609,387		—		4,363,452		4,360,075
Short-term borrowings	—		18,680		—		18,680		18,680
Long-term debt	—		151,343		—		151,343		150,098
Subordinated notes	—		96,663		—		96,663		94,818
Total liabilities	$	3,754,065	$	876,073	$	—	$	4,630,138	$	4,623,671

The following valuation methods and assumptions were used by the Corporation in estimating the fair value for financial instruments measured at fair value on a non-recurring basis and financial instruments not measured at fair value on a recurring or non-recurring basis in the Corporation's consolidated balance sheets but for which the fair value is required to be disclosed:

Cash and short-term interest-earning assets: The carrying amounts reported in the balance sheet for cash and due from banks, interest-earning deposits with other banks and other short-term investments is their stated value. Cash and short-term interest-earning assets are classified within Level 1 in the fair value hierarchy.

Loans held for sale: Loans held for sale are carried at the lower of cost or estimated fair value. The fair value of the Corporation's mortgage loans held for sale are generally determined using a pricing model based on current market information obtained from external sources, including interest rates, bids or indications provided by market participants on specific loans that are actively marketed for sale. These loans are primarily residential mortgage loans and are generally classified in Level 2 due to the observable pricing data.

Loans and leases held for investment: The fair values for loans and leases held for investment are estimated using discounted cash flow analyses, using a discount rate based on current interest rates at which similar loans with similar terms would be made to borrowers, adjusted as appropriate to consider credit, liquidity and marketability factors to arrive at a fair value that represents the Corporation's exit price at which these instruments would be sold or transferred. Loans and leases are classified within Level 3 in the fair value hierarchy since credit risk is not an observable input.

Individually analyzed loans and leases held for investment: For individually analyzed loans and leases, the Corporation uses a variety of techniques to measure fair value, such as using the current appraised value of the collateral, agreements of sale, discounting the contractual cash flows, and analyzing market data that the Corporation may adjust due to specific characteristics of the loan/lease or collateral. At December 31, 2020, individually analyzed loans held for investment had a carrying amount of $31.5 million with a valuation allowance of $585 thousand. At December 31, 2019, impaired loans held for investment had a carrying amount of $38.1 million with a valuation allowance of $2.1 million. The Corporation had no individually analyzed leases at December 31, 2020. The Corporation had impaired leases of $277 thousand with no reserve at December 31, 2019.

Servicing rights: The Corporation estimates the fair value of servicing rights using discounted cash flow models that calculate the present value of estimated future net servicing income. The model uses readily available prepayment speed assumptions for the interest rates of the portfolios serviced. Servicing rights are classified within Level 3 in the fair value hierarchy based upon management's assessment of the inputs. The Corporation reviews the servicing rights portfolio on a quarterly basis for impairment and the servicing rights are carried at the lower of amortized cost or estimated fair value. At December 31, 2020, servicing rights had a net carrying amount of $6.5 million which included a valuation allowance of $87 thousand. At December 31, 2019, servicing rights had a carrying amount of $6.6 million with no valuation allowance.

Goodwill and other identifiable assets: Certain non-financial assets subject to measurement at fair value on a non-recurring basis include goodwill and other identifiable intangible assets. In accordance with ASC Topic 350, goodwill is tested at least annually for impairment at a the reporting unit level. The Corporation performed its annual test of goodwill for impairment during the fourth quarter of 2020 and concluded there was no impairment of goodwill. There was no impairment of goodwill recorded during 2018 through 2019. The Corporation also completed an impairment test for other intangible assets during the fourth quarter of 2020 and concluded there was no impairment of other intangible assets. There was no impairment of other identifiable intangible assets recorded during 2018 through 2019.

Other real estate owned: Other real estate owned (OREO) represents properties that the Corporation has acquired through foreclosure by either accepting a deed in lieu of foreclosure, or by taking possession of assets that were used as loan collateral. The Corporation reports OREO at the lower of cost or fair value less cost to sell, adjusted periodically based on current appraisals. Capital improvement expenses associated with the construction or repair of the property are capitalized as part of the cost of the OREO asset. Write-downs and any gain or loss upon the sale of OREO is recorded in other noninterest income. OREO is reported in other assets on the consolidated balance sheet. During 2020, two property were transferred into OREO with a fair value of $8.4 million, one property had a write-down totaling $300 thousand, and two properties were sold with total proceeds of $325 thousand for a net gain of $106 thousand. Additionally, the Bank received $1.1 million in earnest deposits on the pending sale of land. At December 31, 2020 and 2019, OREO had a carrying amount of $7.4 million and $516 thousand, respectively. Other real estate owned is classified within Level 3 of the valuation hierarchy due to the unique characteristics of the collateral for each loan.

Deposit liabilities: The fair values for demand and savings accounts, with no stated maturities, is the amount payable on demand at the reporting date (carrying value) and are classified within Level 1 in the fair value hierarchy. The fair values for time deposits with fixed maturities are estimated by discounting the final maturity using interest rates currently offered for deposits with similar remaining maturities. Time deposits are classified within Level 2 in the fair value hierarchy.

Long-term debt: The fair value of long-term debt is estimated by using discounted cash flow analysis, based on current market rates for debt with similar terms and remaining maturities. Long-term debt is classified within Level 2 in the fair value hierarchy.

Subordinated notes: The fair value of subordinated notes are estimated by discounting the principal balance using the treasury yield curve for the term to the call date as the Corporation has the option to call the subordinated notes. The subordinated notes are classified within Level 2 in the fair value hierarchy.