Sierra Bancorp (BSRR) 10-Q 6 Aug 20 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Aug. 01, 2020
Cover [Abstract]
Entity Central Index Key	0001130144
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	000-33063
Entity Registrant Name	SIERRA BANCORP
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	33-0937517
Entity Address, Address Line One	86 North Main Street
Entity Address, City or Town	Porterville
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	93257
City Area Code	559
Local Phone Number	782-4900
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	BSRR
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		15,192,838
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Amendment Flag	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 88,705	$ 65,556
Interest-bearing deposits in banks	67,906	14,521
Total cash & cash equivalents	156,611	80,077
Securities available-for-sale	599,333	600,799
Loans and leases:
Gross loans and leases	2,212,097	1,762,565
Allowance for loan and lease losses	(13,560)	(9,923)
Deferred loan and lease (fees) costs, net	(2,617)	2,896
Net loans and leases	2,195,920	1,755,538
Foreclosed assets	2,893	800
Premises and equipment, net	27,779	27,435
Goodwill	27,357	27,357
Other intangible assets, net	4,844	5,381
Bank-owned life insurance	51,347	50,517
Other assets	43,960	45,915
Total assets	3,110,044	2,593,819
Deposits:
Non-interest bearing	949,662	690,950
Interest bearing	1,557,092	1,477,424
Total deposits	2,506,754	2,168,374
Repurchase agreements	41,449	25,711
Short-term borrowings	163,000	20,000
Subordinated debentures, net	35,035	34,945
Other liabilities	36,373	35,504
Total liabilities	2,782,611	2,284,534
Commitments and contingent liabilities (Note 7)
Shareholders' equity
Common stock, no par value; 24,000,000 shares authorized; 15,192,838 and 15,284,538 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively	112,645	113,179
Additional paid-in capital	3,462	3,307
Retained earnings	195,147	186,867
Accumulated other comprehensive gain (loss), net	16,179	5,932
Total shareholders' equity	327,433	309,285
Total liabilities and shareholder's equity	$ 3,110,044	$ 2,593,819

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Statement of Financial Position [Abstract]
Common Stock, No Par Value	$ 0	$ 0
Common Stock, Shares Authorized	24,000,000	24,000,000
Common Stock, Shares, Issued	15,192,838	15,284,538
Common Stock, Shares, Outstanding	15,192,838	15,284,538	15,332,550

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest and dividend income
Loans and leases, including fees	$ 21,683	$ 24,010	$ 43,796	$ 47,759
Taxable securities	2,250	2,591	4,710	5,207
Tax-exempt securities	1,440	1,072	2,778	2,117
Federal funds sold and other	12	115	153	188
Total interest income	25,385	27,788	51,437	55,271
Interest expense
Deposits	893	3,093	2,727	6,048
Short-term borrowings	39	26	75	97
Subordinated debentures	311	470	706	954
Total interest expense	1,243	3,589	3,508	7,099
Net interest income	24,142	24,199	47,929	48,172
Provision for loan and lease losses	2,200	400	4,000	700
Net interest income after provision for loan and lease losses	21,942	23,799	43,929	47,472
Non-interest income
Other income	4,282	2,704	7,205	5,668
Total non-interest income	6,900	5,855	13,007	11,762
Non-interest expense
Salaries and employee benefits	9,266	8,994	19,438	18,237
Occupancy and equipment	2,504	2,450	4,832	4,811
Other	6,263	6,212	11,581	12,461
Total non-interest expense	18,033	17,656	35,851	35,509
Income before taxes	10,809	11,998	21,085	23,725
Provision for income taxes	2,506	3,169	4,975	6,001
Net income	$ 8,303	$ 8,829	$ 16,110	$ 17,724
Earnings per share
Book value	$ 21.55	$ 19.36	$ 21.55	$ 19.36
Cash dividend per share	0.20	0.18	0.40	0.36
Basic	0.55	0.58	1.06	1.16
Diluted	$ 0.54	$ 0.57	$ 1.05	$ 1.15
Weighted average shares outstanding, basic	15,191,823	15,329,907	15,226,748	15,320,784
Weighted average shares outstanding, diluted	15,237,655	15,458,320	15,288,009	15,453,212
Deposit Account [Member]
Non-interest income
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2,618	$ 3,151	$ 5,802	$ 6,094
Debit Card [Member]
Non-interest income
Revenue from Contract with Customer, Excluding Assessed Tax	$ 1,723	$ 1,687	$ 3,355	$ 3,200

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 8,303	$ 8,829	$ 16,110	$ 17,724
Unrealized gains on securities:
Unrealized holding gain arising during period	4,037	9,324	14,939	15,491
Less: reclassification adjustment for (gains) losses included in net income	(390)	(22)	(390)	(28)
Other comprehensive income, before tax	3,647	9,302	14,549	15,463
Income tax expense related to items of other comprehensive income, net of tax	(1,078)	(2,750)	(4,302)	(4,571)
Other comprehensive income	2,569	6,552	10,247	10,892
Comprehensive income	$ 10,872	$ 15,381	$ 26,357	$ 28,616

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Reclassification adjustment for (losses) gains on securities available-for-sale included in net income, tax	$ 115	$ 7	$ 115	$ 8

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (loss) [Member]	Total
Balance at Dec. 31, 2018	$ 112,507	$ 3,066	$ 164,117	$ (6,666)	$ 273,024
Balance (in shares) at Dec. 31, 2018	15,300,460
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			17,724		17,724
Other comprehensive income, net of tax				10,892	10,892
Exercise of stock options	$ 554	(96)			458
Exercise of stock options (in shares)	32,090
Stock compensation costs		267			267
Cash dividends			(5,513)		(5,513)
Balance at Jun. 30, 2019	$ 113,061	3,237	176,328	4,226	296,852
Balance (in shares) at Jun. 30, 2019	15,332,550
Balance at Mar. 31, 2019	$ 113,001	3,135	170,258	(2,326)	284,068
Balance (in shares) at Mar. 31, 2019	15,328,030
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			8,829		8,829
Other comprehensive income, net of tax				6,552	6,552
Exercise of stock options	$ 60	(14)			46
Exercise of stock options (in shares)	4,520
Stock compensation costs		116			116
Cash dividends			(2,759)		(2,759)
Balance at Jun. 30, 2019	$ 113,061	3,237	176,328	4,226	296,852
Balance (in shares) at Jun. 30, 2019	15,332,550
Balance at Dec. 31, 2019	$ 113,179	3,307	186,867	5,932	309,285
Balance (in shares) at Dec. 31, 2019	15,284,538
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			16,110		16,110
Other comprehensive income, net of tax				10,247	10,247
Exercise of stock options	$ 295	(80)			215
Exercise of stock options (in shares)	20,350
Stock compensation costs		235			235
Stock repurchase	$ (829)		(1,733)		(2,562)
Stock repurchase (in shares)	(112,050)
Cash dividends			(6,097)		(6,097)
Balance at Jun. 30, 2020	$ 112,645	3,462	195,147	16,179	327,433
Balance (in shares) at Jun. 30, 2020	15,192,838
Balance at Mar. 31, 2020	$ 112,600	3,367	189,882	13,610	319,459
Balance (in shares) at Mar. 31, 2020	15,190,038
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			8,303		8,303
Other comprehensive income, net of tax				2,569	2,569
Exercise of stock options	$ 45	(11)			34
Exercise of stock options (in shares)	2,800
Stock compensation costs		106			106
Cash dividends			(3,038)		(3,038)
Balance at Jun. 30, 2020	$ 112,645	$ 3,462	$ 195,147	$ 16,179	$ 327,433
Balance (in shares) at Jun. 30, 2020	15,192,838

CONSOLIDATED STATEMENT OF CHA_2

CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Stockholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.20	$ 0.18	$ 0.40	$ 0.36

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income	$ 16,110	$ 17,724
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sales of securities	(390)	(28)
Loss on disposal of fixed assets		28
Loss (gain) on sale on foreclosed assets	2	(37)
Writedowns of foreclosed assets		69
Stock compensation costs	235	267
Provision for loan and lease losses	4,000	700
Depreciation and amortization	1,540	1,496
Net amortization on securities premiums and discounts	2,227	2,107
Accretion of discounts for loans acquired and net deferred loan fees	(331)	(505)
Increase in cash surrender value of life insurance policies	(687)	(1,027)
Amortization of core deposit intangible	537	537
Increase in interest receivable and other assets	(2,241)	(1,213)
Increase (decrease) in other liabilities	869	(2,065)
Deferred income tax benefit	(230)	(27)
Increase in equity securities	(447)	(232)
Net amortization of partnership investment	571	900
Net cash provided by operating activities	21,765	18,694
Cash flows from investing activities:
Maturities and calls of securities available for sale	6,195	4,459
Proceeds from sales of securities available for sale	20,298	22,180
Purchases of securities available for sale	(59,578)	(72,330)
Principal paydowns on securities available for sale	47,263	42,288
Net purchases of FHLB stock		(833)
Loan originations and payments, net	(446,178)	(46,315)
Purchases of premises and equipment, net	(1,794)	(330)
Proceeds from sale premises and equipment		10
Proceeds from sales of foreclosed assets	32	7,955
Purchase of bank owned life insurance	(182)	(292)
Liquidation of bank-owned life insurance	39	261
Net cash used in investing activities	(433,905)	(42,947)
Cash flows from financing activities:
Increase in deposits	338,380	62,758
Increase (decrease) in borrowed funds	143,000	(47,600)
Increase in repurchase agreements	15,738	7,808
Cash dividends paid	(6,097)	(5,513)
Repurchases of common stock	(2,562)
Stock options exercised	215	458
Net cash provided by financing activities	488,674	17,911
Increase (decrease) in cash and cash equivalents	76,534	(6,342)
Cash and cash equivalents, beginning of year	80,077	74,132
Cash and cash equivalents, end of year	156,611	67,790
Supplemental disclosure of cash flow information:
Interest paid	3,941	6,917
Income taxes paid		7,600
Supplemental noncash disclosures:
Real estate acquired through foreclosure	$ 2,127	27
Operating right-of-use asset pursuant to adoption on ASU 2016-02		9,712
Operating lease liability pursuant to adoption of ASU 2016-02		$ 10,336

The Business of Sierra Bancorp

The Business of Sierra Bancorp	6 Months Ended
	Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Business of Sierra Bancorp	Note 1 – The Business of Sierra Bancorp Sierra Bancorp (the “Company”) is a California corporation headquartered in Porterville, California, and is a registered bank holding company under federal banking laws. The Company was formed to serve as the holding company for Bank of the Sierra (the “Bank”), and has been the Bank’s sole shareholder since August 2001. The Company exists primarily for the purpose of holding the stock of the Bank and of such other subsidiaries it may acquire or establish. As of June 30, 2020, the Company’s only other subsidiaries were Sierra Statutory Trust II, Sierra Capital Trust III, and Coast Bancorp Statutory Trust II, which were formed solely to facilitate the issuance of capital trust pass-through securities (“TRUPS”). Pursuant to the Financial Accounting Standards Board (“FASB”) standard on the consolidation of variable interest entities, these trusts are not reflected on a consolidated basis in the Company’s financial statements. References herein to the “Company” include Sierra Bancorp and its consolidated subsidiary, the Bank, unless the context indicates otherwise. Bank of the Sierra, a California state-chartered bank headquartered in Porterville, California, offers a wide range of retail and commercial banking services via branch offices located throughout California’s South San Joaquin Valley, the Central Coast, Ventura County, the Sacramento area, and neighboring communities. The Bank was incorporated in September 1977, and opened for business in January 1978 as a million in capital. Our growth in the ensuing years has largely been organic in nature, but includes whole-bank acquisitions: Sierra National Bank in 2000, Santa Clara Valley Bank in 2014, Coast National Bank in 2016, and Ojai Community Bank in October 2017. As of the filing date of this report the Bank operates full service branches and an online branch, and maintains ATMs at all but one of our branch locations as well as seven non-branch locations. Moreover, the Bank has specialized lending units which focus on agricultural borrowers, SBA loans, and mortgage warehouse lending. In addition, the bank opened a loan production office in Rocklin, CA in February 2020. The Company had total assets of years we have claimed the distinction of being the largest bank headquartered in the South San Joaquin Valley. The Bank’s deposit accounts, which totaled

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2020
Basis of Presentation [Abstract]
Basis of Presentation	Note 2 – Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in a condensed format, and therefore do not include all of the information and footnotes required by U.S. generally accepted accounting principles (“GAAP”) for complete financial statements. The information furnished in these interim statements reflects all adjustments that are, in the opinion of Management, necessary for a fair statement of the results for such periods. Such adjustments can generally be considered as normal and recurring unless otherwise disclosed in this Form 10- Q. In preparing the accompanying financial statements, Management has taken subsequent events into consideration and recognized them where appropriate. The results of operations in the interim statements are not necessarily indicative of the results that may be expected for any other quarter, or for the full year. Certain amounts reported for 2019 have been reclassified to be consistent with the reporting for 2020. The interim financial information should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, as filed with the Securities and Exchange Commission (the “SEC”).

Current Accounting Developments

Current Accounting Developments	6 Months Ended
	Jun. 30, 2020
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Current Accounting Developments	Note 3 – Current Accounting Developments In September 2016 the FASB issued ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which eliminates the probable initial recognition threshold for credit losses in current U.S. GAAP, and instead requires an organization to record a current estimate of all expected credit losses over the contractual term for financial assets carried at amortized cost. This is commonly referred to as the current expected credit losses (“CECL”) methodology. Expected credit losses for financial assets held at the reporting date will be measured based on historical experience, current conditions, and reasonable and supportable forecasts. Another change from existing U.S. GAAP involves the treatment of purchased credit deteriorated assets, which are more broadly defined than purchased credit impaired assets in current accounting standards. When such assets are purchased, institutions will estimate and record an allowance for credit losses that is added to the purchase price rather than being reported as a credit loss expense. Furthermore, ASU 2016- 13 updates the measurement of credit losses on available-for-sale debt securities, by mandating that institutions record credit losses on available-for-sale debt securities through an allowance for credit losses rather than the current practice of writing down securities for other-than-temporary impairment. ASU 2016- 13 will also require the enhancement of financial statement disclosures regarding estimates used in calculating credit losses. ASU 2016- 13 does not change the existing write-off principle in U.S. GAAP or current nonaccrual practices, nor does it change accounting requirements for loans held for sale or certain other financial assets which are measured at the lower of amortized cost or fair value. As a public business entity that is an SEC filer, ASU 2016-13 became effective for the Company on . On the effective date, institutions will apply the new accounting standard as follows: for financial assets carried at amortized cost, a cumulative-effect adjustment will be recognized on the balance sheet for any change in the related allowance for loan and lease losses generated by the adoption of the new standard; financial assets classified as purchased credit impaired assets prior to the effective date will be reclassified as purchased credit deteriorated assets as of the effective date, and will be grossed up for the related allowance for expected credit losses created as of the effective date; and, debt securities on which other-than-temporary impairment had been recognized prior to the effective date will transition to the new guidance prospectively with no change in their amortized cost basis. The Company , however, the Company elected under Section 4014 of the Coronavirus Aid, Relief and Economic Security (CARES) Act to defer the implementation of CECL until the earlier of when the national emergency related to the outbreak of COVID-19 ends or December 31, 2020. Although this deferral will still require CECL to be implemented as of January 1, 2020, the Company believes that the deferral will provide time to better assess the impact of the COVID-19 pandemic on the expected lifetime credit losses. While the ultimate impact cannot be definitively determined at this time, we believe the provisions of ASU 2016-13 will have a material adverse impact on our consolidated financial statements, particularly the level of our allowance for credit losses and shareholders’ equity. In January 2017 the FASB issued ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Accounting for Goodwill Impairment . This guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation, and goodwill impairment will simply be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary. The same one-step impairment test will be applied to goodwill at all reporting units, even those with zero or negative carrying amounts. Entities will be required to disclose the amount of goodwill at reporting units with zero or negative carrying amounts. The amendments in this update were effective for public business entities for fiscal years beginning after . In accordance with ASU 2017-04, the Company performed a qualitative analysis of goodwill during the first and second quarters of 2020 , and determined that a quantitative analysis was not necessary at this time. Thus, we have not been required to record any goodwill impairment to date. In August 2018 the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement, as part of its disclosure framework project. Pursuant to this guidance, disclosures that will no longer be required include the following: transfers between Level 1 and Level 2 of the fair value hierarchy; transfers in and out of Level 3 for nonpublic entities, as well as purchases and issuances and the Level 3 roll forward; a company’s policy for determining when transfers between any of the three levels have occurred; the valuation processes used for Level 3 measurements; and, the changes in unrealized gains or losses presented in earnings for Level 3 instruments held at the balance sheet date for nonpublic entities. The following are additional disclosure requirements: for public entities, the changes in unrealized gains and losses for the period included in other comprehensive income for recurring Level 3 instruments held at the balance sheet date; for public entities, the range and weighted average of significant unobservable inputs used for Level 3 measurements, although for certain unobservable inputs the entity will be allowed to disclose other quantitative information in place of the weighted average to the extent that it would be a more reasonable and rational method to reflect the distribution of unobservable inputs; for nonpublic entities, some form of quantitative information about significant unobservable inputs used in Level 3 fair value measurements; and, for certain investments in entities that calculate the net asset value, disclosures will be required about the timing of liquidation and redemption restrictions lapsing if the latter has been communicated to the reporting entity. The guidance also clarifies that the Level 3 measurement uncertainty disclosure should communicate information about the uncertainty at the balance sheet date. ASU 2018-13 is effective for all entities in fiscal years beginning after December 15, 2019, including interim periods. is permitted. In addition, an entity may early adopt any of the removed or modified disclosures immediately and delay adoption of the new disclosures until the effective date. The Company In May 2019, the FASB issued ASU 2019-05, Financial Instruments—Credit Losses (Topic 326) , which provides transition relief for entities adopting ASU 2016-13. ASU 2019-05 amends ASU 2016-13 to allow companies to irrevocably elect, upon adoption of ASU 2016-13, the fair value option on financial instruments that (1) were previously recorded at amortized cost and (2) are within the scope of ASC 326-20 if the instruments are eligible for the fair value option under ASC 825-10. An entity will apply the amendments in this update through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective (that is, a modified-retrospective approach). A prospective transition approach is required for debt securities for which an other-than-temporary impairment had been recognized before the effective date, in order to maintain the same amortized cost basis before and after the effective date of this update. Amounts previously recognized in accumulated other comprehensive income as of the date of adoption that relate to improvements in cash flows expected to be collected should continue to be accreted into income over the remaining life of the asset. Recoveries of amounts previously written off relating to improvements in cash flows after the date of adoption should be recorded in earnings when received. The fair value option election does not apply to held-to-maturity debt securities. Entities are required to make this election on an instrument-by-instrument basis. For public business entities that are SEC filers, including the Company, the amendments in ASU 2019-05 are effective for fiscal years beginning after On March 22, 2020, a statement was issued by our banking regulators and titled the “Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus” (the “Interagency Statement”) that encourages financial institutions to work prudently with borrowers who are or may be unable to meet their contractual payment obligations due to the effects of COVID-19. Additionally, Section 4013 of the CARES Act, that passed on March 27, 2020, further provides that a qualified loan modification is exempt by law from classification as a troubled debt restructuring (“TDR”) as defined by GAAP, from the period beginning March 1, 2020 until the earlier of December 31, 2020 or the date that is 60 days after the date on which the national emergency concerning the COVID-19 outbreak declared by the President of the United States under the National Emergencies Act (50 U.S.C. 1601 et seq.) terminates. The Interagency Statement was subsequently revised in April 2020 to clarify the interaction of the original guidance with Section 4013 of the CARES Act, as well as setting forth the banking regulators’ views on consumer protection considerations. In accordance with such guidance, we are offering short-term modifications made in response to COVID-19 to borrowers who are current and otherwise not past due. These include short-term, 180 days or less, modifications in the form of payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that are insignificant. See Note 10 for further information on non-TDR loan modifications. The Interagency Guidance and Section 4013 are expected to have a material impact on the Company’s financial statements; however, this impact cannot be quantified at this time. ​

Share Based Compensation

Share Based Compensation	6 Months Ended
	Jun. 30, 2020
Share Based Compensation [Abstract]
Share Based Compensation	Note 4 – Share Based Compensation On March 16, 2017 the Company’s Board of Directors approved and adopted the 2017 Stock Incentive Plan (the “2017 Plan”), which became effective May 24, 2017, the date approved by the Company’s shareholders. The 2017 Plan replaced the Company’s 2007 Stock Incentive Plan (the “2007 Plan”), which expired by its own terms on March 15, 2017. Options to purchase shares that were granted under the 2007 Plan were still outstanding as of June 30, 2020 and remain unaffected by that plan’s expiration. The 2017 Plan provides for the issuance of both “incentive” and “nonqualified” stock options to officers and employees, and of “nonqualified” stock options to non-employee directors and consultants of the Company. The 2017 Plan also provides for the issuance of restricted stock awards to these same classes of eligible participants, although no restricted stock awards have ever been issued by the Company. The total number of shares of the Company’s authorized but unissued stock reserved for issuance pursuant to awards under the 2017 Plan was initially . The potential dilutive impact of unexercised stock options is discussed below in Note 5, Earnings per Share. Pursuant to FASB’s standards on stock compensation, the value of each stock option is reflected in our income state­ ment as employee compensation or directors’ expense by amortizing its grant date fair value over the vesting period of the option. The Company utilizes a Black-Scholes model to determine grant date fair values. A pre-tax charge of

Earnings per Share

Earnings per Share	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Earnings per Share	Note 5 – Earnings per Share The computation of earnings per share, as presented in the Consolidated Statements of Income, is based on the weighted average number of shares outstanding during each period. There were Diluted earnings per share calculations include the effect of the potential issuance of common shares, which for the Company is limited to shares that would be issued on the exercise of “in-the-money” stock options. For the second quarter of 2020, calculations under the treasury stock method resulted in the equivalent of stock options were excluded from the calculation because they were underwater and thus anti-dilutive. For the second quarter of 2019 the equivalent of anti-dilutive stock options were not factored into the computation. Likewise, for the first half of 2020 the equivalent of anti-dilutive options in calculating diluted earnings per share for first half of 2019.

Comprehensive Income

Comprehensive Income	6 Months Ended
	Jun. 30, 2020
Stockholders' Equity Note [Abstract]
Comprehensive Income	Note 6 – Comprehensive Income As presented in the Consolidated Statements of Comprehensive Income, comprehensive income includes net income and other comprehensive income. The Company’s only source of other comprehensive income is unrealized gains and losses on available-for-sale investment securities. Investment gains or losses that were realized and reflected in net income of the current period, which had previously been included in other comprehensive income as unrealized holding gains or losses in the period in which they arose, are considered to be reclassification adjustments that are excluded from other comprehensive income in the current period.

Financial Instruments with Off-

Financial Instruments with Off-Balance-Sheet Risk	6 Months Ended
	Jun. 30, 2020
Financial Instruments with Off Balance Sheet Risk [Abstract]
Financial Instruments with Off-Balance-Sheet Risk	Note 7 – 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. Those financial instruments currently consist of unused commitments to extend credit and standby letters of credit. They involve, to varying degrees, elements of risk in excess of the amount recognized in the balance sheet. The Company’s exposure to credit loss in the event of nonperformance by counterparties for commitments to extend credit and letters of credit is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and issuing letters of credit as it does for originating loans included on the balance sheet. ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Commitments to extend credit ​ $ 449,045 ​ $ 492,040 Standby letters of credit ​ $ 9,435 ​ $ 8,619 ​ Commitments to extend credit consist primarily of the unused or unfunded portions of the following: home equity lines of credit; commercial real estate construction loans, where disbursements are made over the course of construction; commercial revolving lines of credit; mortgage warehouse lines of credit; unsecured personal lines of credit; and formalized (disclosed) deposit account overdraft lines. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many commitments are expected to expire without being drawn upon, the unused portions of committed amounts do not necessarily represent future cash requirements. Standby letters of credit are issued by the Company to guarantee the performance of a customer to a third party, and the credit risk involved in issuing letters of credit is essentially the same as the risk involved in extending loans to customers. At June 30, 2020, the Company was also utilizing a letter of credit in the amount of $105 million issued by the Federal Home Loan Bank on the Company’s behalf as security for certain deposits and to facilitate certain credit arrangements with the Company’s customers. That letter of credit is backed by loans which are pledged to the FHLB by the Company.

Fair Value Disclosures and Repo

Fair Value Disclosures and Reporting, the Fair Value Option and Fair Value Measurements	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value	Note 8 – Fair Value Disclosures and Reporting, the Fair Value Option and Fair Value Measurements FASB’s standards on financial instruments, and on fair value measurements and disclosures, require public business entities to disclose in their financial statement footnotes the estimated fair values of financial instruments. In addition to disclosure requirements, FASB’s standard on investments requires that our debt securities that are classified as available for sale and any equity securities which have readily determinable fair values be measured and reported at fair value in our statement of financial position. Certain impaired loans are also reported at fair value, as explained in greater detail below, and foreclosed assets are carried at the lower of cost or fair value. FASB’s standard on financial instruments permits companies to report certain other financial assets and liabilities at fair value, but we have not elected the fair value option for any of those financial instruments. Fair value measurement and disclosure standards also establish a framework for measuring fair values. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability, in an orderly transaction between market participants on the measurement date. Further, the standards establish a fair value hierarchy that encourages an entity to maximize the use of observable inputs and limit the use of unobservable inputs when measuring fair values. The standards describe three levels of inputs that may be used to measure fair values: ● Level 1 : Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date. ● Level 2 : Significant observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, and other inputs that are observable or can be corroborated by observable market data. ● Level 3 : Significant unobservable inputs that reflect a company’s own assumptions about the factors that market participants would likely consider in pricing an asset or liability. Fair value estimates are made at a specific point in time based on relevant market data and information about the financial instruments. Fair value disclosures for deposits include demand deposits, which are by definition equal to the amount payable on demand at the reporting date. Fair value calculations for loans and leases reflect exit pricing, and incorporate our assumptions with regard to the impact of prepayments on future cash flows and credit quality adjustments based on risk characteristics of various financial instruments, among other things. Since the estimates are subjective and involve uncertainties and matters of significant judgment they cannot be determined with precision, and changes in assumptions could significantly alter the fair values presented. ​ ​ ​ Estimated fair values for the Company’s financial instruments are as follows, as of the dates noted: Fair Value of Financial Instruments (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ ​ ​ ​ Fair Value Measurements ​ Carrying Quoted Prices in Significant Significant Total Financial assets: ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 156,611 ​ $ 156,611 ​ $ — ​ $ — ​ $ 156,611 Investment securities available for sale ​ ​ 599,333 ​ ​ — ​ ​ 599,333 ​ ​ — ​ ​ 599,333 Loans and leases, net held for investment ​ ​ 2,195,837 ​ ​ — ​ ​ — ​ ​ 2,240,456 ​ ​ 2,240,456 Collateral dependent impaired loans ​ ​ 83 ​ ​ — ​ ​ 83 ​ ​ — ​ ​ 83 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deposits ​ ​ 2,506,754 ​ ​ 949,662 ​ ​ 1,557,228 ​ ​ — ​ ​ 2,506,890 Repurchase agreements ​ ​ 41,449 ​ ​ — ​ ​ 41,449 ​ ​ — ​ ​ 41,449 Short term borrowings ​ ​ 163,000 ​ ​ — ​ ​ 162,981 ​ ​ — ​ ​ 162,981 Subordinated debentures ​ ​ 35,035 ​ ​ — ​ ​ 24,507 ​ ​ — ​ ​ 24,507 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ ​ ​ Fair Value Measurements ​ Carrying Quoted Prices in Significant Significant Total Financial assets: ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 80,077 ​ $ 80,076 ​ $ — ​ $ — ​ $ 80,076 Investment securities available for sale ​ ​ 600,799 ​ ​ — ​ ​ 600,799 ​ ​ — ​ ​ 600,799 Loans and leases, net held for investment ​ ​ 1,753,846 ​ ​ — ​ ​ — ​ ​ 1,761,461 ​ ​ 1,761,461 Collateral dependent impaired loans ​ ​ 1,692 ​ ​ — ​ ​ 1,692 ​ ​ — ​ ​ 1,692 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deposits ​ ​ 2,168,374 ​ ​ 690,950 ​ ​ 1,477,497 ​ ​ — ​ ​ 2,168,447 Repurchase agreements ​ ​ 25,711 ​ ​ — ​ ​ 25,711 ​ ​ — ​ ​ 25,711 Short term borrowings ​ ​ 20,000 ​ ​ — ​ ​ 2,000 ​ ​ — ​ ​ 2,000 Subordinated debentures ​ ​ 34,945 ​ ​ — ​ ​ 30,564 ​ ​ — ​ ​ 30,564 ​ For financial asset categories that were carried on our balance sheet at fair value as of June 30, 2020 and December 31, 2019, the Company used the following methods and significant assumptions: ● Investment securities : Fair values are determined by obtaining quoted prices on nationally recognized securities exchanges or by matrix pricing, which is a mathematical technique used widely in the industry to value debt securities by relying on their relationship to other benchmark quoted securities. ● Collateral-dependent impaired loans : Collateral-dependent impaired loans are carried at fair value when it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the original loan agreement and the loan has been written down to the fair value of its underlying collateral, net of expected disposition costs where applicable. ● Foreclosed assets : Repossessed real estate (known as other real estate owned, or “OREO”) and other foreclosed assets are carried at the lower of cost or fair value. Fair value is the appraised value less expected selling costs for OREO and some other assets such as mobile homes; fair values for any other foreclosed assets are represented by estimated sales proceeds as determined using reasonably available sources. Foreclosed assets for which appraisals can be feasibly obtained are periodically measured for impairment using updated appraisals. Fair values for other foreclosed assets are adjusted as necessary, subsequent to a periodic re-evaluation of expected cash flows and the timing of resolution. If impairment is determined to exist, the book value of a foreclosed asset is immediately written down to its estimated impaired value through the income statement, thus the carrying amount is equal to the fair value and there is no valuation allowance. Assets reported at fair value on a recurring basis are summarized below: Fair Value Measurements – Recurring (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at June 30, 2020, using ​ ​ ​ ​ Quoted Prices in Significant Significant Total Realized Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ — ​ $ 1,850 ​ $ — ​ $ 1,850 ​ $ — Mortgage-backed securities ​ ​ — ​ ​ 375,485 ​ ​ — ​ ​ 375,485 ​ ​ — State and political subdivisions ​ ​ — ​ ​ 221,998 ​ ​ — ​ ​ 221,998 ​ ​ — Total available-for-sale securities ​ $ — ​ $ 599,333 ​ $ — ​ $ 599,333 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019, using ​ ​ ​ ​ Quoted Prices in Significant Significant Total Realized Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ — ​ $ 12,145 ​ $ — ​ $ 12,145 ​ $ — Mortgage-backed securities ​ ​ — ​ ​ 400,389 ​ ​ — ​ ​ 400,389 ​ ​ — State and political subdivisions ​ ​ — ​ ​ 188,265 ​ ​ — ​ ​ 188,265 ​ ​ — Total available-for-sale securities ​ $ — ​ $ 600,799 ​ $ — ​ $ 600,799 ​ $ — ​ Assets reported at fair value on a nonrecurring basis are summarized below: Fair Value Measurements – Nonrecurring (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at June 30, 2020, using ​ Quoted Prices in Significant Significant Total Impaired loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ 83 ​ ​ — ​ ​ 83 Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate ​ ​ — ​ ​ 83 ​ ​ — ​ ​ 83 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total impaired loans ​ $ — ​ $ 83 ​ $ — ​ $ 83 Foreclosed assets ​ $ — ​ $ 2,893 ​ $ — ​ $ 2,893 Total assets measured on a nonrecurring basis ​ $ — ​ $ 2,976 ​ $ — ​ $ 2,976 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019, using ​ Quoted Prices in Significant Significant Total Impaired loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ 88 ​ ​ — ​ ​ 88 Commercial real estate - non-owner occupied ​ ​ — ​ ​ 1,605 ​ ​ — ​ ​ 1,605 Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate ​ ​ — ​ ​ 1,693 ​ ​ — ​ ​ 1,693 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total impaired loans ​ $ — ​ $ 1,693 ​ $ — ​ $ 1,693 Foreclosed assets ​ $ — ​ $ 800 ​ $ — ​ $ 800 Total assets measured on a nonrecurring basis ​ $ — ​ $ 2,493 ​ $ — ​ $ 2,493 ​ The table above includes collateral-dependent impaired loan balances for which a specific reserve has been established or on which a write-down has been taken. Information on the Company’s total impaired loan balances and specific loss reserves associated with those balances is included in Note 11 below. The unobservable inputs are based on Management’s best estimates of appropriate discounts in arriving at fair market value. Adjusting any of those inputs could result in a significantly lower or higher fair value measurement. For example, an increase or decrease in actual loss rates would create a directionally opposite change in the fair value of unsecured impaired loans.

Investments

Investments	6 Months Ended
	Jun. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Investments	Note 9 – Investments Investment Securities Although the Company currently has the intent and the ability to hold the securities in its investment portfolio to maturity, the securities are all marketable and are classified as “available for sale” to allow maximum flexibility with regard to interest rate risk and liquidity management. Pursuant to FASB’s guidance on accounting for debt and equity securities, available for sale securities are carried on the Company’s financial statements at their estimated fair market values, with monthly tax-effected “mark-to-market” adjustments made vis-à-vis accumulated other comprehensive income in shareholders’ equity. The amortized cost and estimated fair value of available-for-sale investment securities are as follows: Amortized Cost And Estimated Fair Value (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ Amortized Gross Gross Estimated Fair U.S. government agencies ​ $ 1,775 ​ $ 75 ​ $ — ​ $ 1,850 Mortgage-backed securities ​ ​ 364,828 ​ ​ 10,668 ​ ​ (11) ​ ​ 375,485 State and political subdivisions ​ ​ 209,760 ​ ​ 12,239 ​ ​ (1) ​ ​ 221,998 Total securities ​ $ 576,363 ​ $ 22,982 ​ $ (12) ​ $ 599,333 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ Amortized Gross Gross Estimated Fair U.S. government agencies ​ $ 12,125 ​ $ 124 ​ $ (104) ​ $ 12,145 Mortgage-backed securities ​ ​ 398,353 ​ ​ 3,354 ​ ​ (1,318) ​ ​ 400,389 State and political subdivisions ​ ​ 181,900 ​ ​ 6,478 ​ ​ (113) ​ ​ 188,265 Total securities ​ $ 592,378 ​ $ 9,956 ​ $ (1,535) ​ $ 600,799 ​ At June 30, 2020 and December 31, 2019, the Company had 7 securities and 198 securities, respectively, with gross unrealized losses. Management has evaluated those securities as of the respective dates, and does not believe that any of the unrealized losses are other than temporary. Gross unrealized losses on our investment securities as of the indicated dates are disclosed in the table below, categorized by investment type and by the duration of time that loss positions on individual securities have continuously existed (over or under twelve months). Investment Portfolio - Unrealized Losses (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ Less than twelve months ​ Twelve months or more ​ Gross Fair Value Gross Fair Value U.S. government agencies ​ $ — ​ $ — ​ $ — ​ $ — Mortgage-backed securities ​ ​ (3) ​ ​ 4,692 ​ ​ (8) ​ ​ 1,733 State and political subdivisions ​ ​ (1) ​ ​ 1,052 ​ ​ — ​ ​ — Total ​ $ (4) ​ $ 5,744 ​ $ (8) ​ $ 1,733 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ Less than twelve months ​ Twelve months or more ​ Gross Fair Value Gross Fair Value U.S. government agencies ​ $ (32) ​ $ 3,240 ​ $ (72) ​ $ 2,689 Mortgage-backed securities ​ ​ (494) ​ ​ 100,518 ​ ​ (824) ​ ​ 78,538 State and political subdivisions ​ ​ (113) ​ ​ 19,762 ​ ​ — ​ ​ — Total ​ $ (639) ​ $ 123,520 ​ $ (896) ​ $ 81,227 ​ The table below summarizes the Company’s gross realized gains and losses as well as gross proceeds from the sales of securities, for the periods indicated: Investment Portfolio - Realized Gains/(Losses) (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, ​ ​ Six months ended June 30, ​ 2020 2019 ​ 2020 ​ 2019 Proceeds from sales, calls and maturities of securities available for sale ​ $ 24,063 ​ $ 9,985 ​ $ 26,493 ​ $ 26,639 Gross gains on sales, calls and maturities of securities available for sale ​ ​ 433 ​ ​ 33 ​ ​ 433 ​ ​ 127 Gross losses on sales, calls and maturities of securities available for sale ​ ​ (43) ​ ​ (11) ​ ​ (43) ​ ​ (99) Net gains on sale of securities available for sale ​ $ 390 ​ $ $22 ​ $ 390 ​ $ 28 ​ The amortized cost and estimated fair value of investment securities available-for-sale at June 30, 2020 and December 31, 2019 are shown below, grouped by the remaining time to contractual maturity dates. The expected life of investment securities may not be consistent with contractual maturity dates, since the issuers of the securities might have the right to call or prepay obligations with or without penalties. Estimated Fair Value of Contractual Maturities (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ Amortized Cost Fair Value Maturing within one year ​ $ 4,362 ​ $ 4,388 Maturing after one year through five years ​ ​ 7,834 ​ ​ 8,104 Maturing after five years through ten years ​ ​ 29,485 ​ ​ 30,823 Maturing after ten years ​ ​ 169,854 ​ ​ 180,533 Securities not due at a single maturity date: ​ ​ ​ ​ ​ ​ Mortgage-backed securities ​ ​ 181,945 ​ ​ 186,880 Collateralized mortgage obligations ​ ​ 182,883 ​ ​ 188,605 ​ ​ $ 576,363 ​ $ 599,333 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ Amortized Cost Fair Value Maturing within one year ​ $ 7,155 ​ $ 7,244 Maturing after one year through five years ​ ​ 17,008 ​ ​ 17,171 Maturing after five years through ten years ​ ​ 33,805 ​ ​ 34,881 Maturing after ten years ​ ​ 136,057 ​ ​ 141,114 Securities not due at a single maturity date: ​ ​ ​ ​ ​ ​ Mortgage-backed securities ​ ​ 189,554 ​ ​ 190,488 Collateralized mortgage obligations ​ ​ 208,799 ​ ​ 209,901 ​ ​ $ 592,378 ​ $ 600,799 ​ At June 30, 2020, the Company’s investment portfolio included 356 “muni” bonds issued by 298 different government municipalities and agencies located within 29 different states, with an aggregate fair value of $222 million. The largest exposure to any single municipality or agency was a combined The Company’s investments in bonds issued by states, municipalities and political subdivisions are evaluated in accordance with Supervision and Regulation Letter 12- 15 issued by the Board of Governors of the Federal Reserve System, “Investing in Securities without Reliance on Nationally Recognized Statistical Rating Organization Ratings,” and other regulatory guidance. Credit ratings are considered in our analysis only as a guide to the historical default rate associated with similarly-rated bonds. There have been no significant differences in our internal analyses compared with the ratings assigned by the third party credit rating agencies. The following table summarizes the amortized cost and fair values of general obligation and revenue bonds in the Company’s investment securities portfolio at the indicated dates, identifying the state in which the issuing municipality or agency operates for our largest geographic concentrations: Revenue and General Obligation Bonds by Location (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ December 31, 2019 ​ ​ Amortized ​ Fair Market ​ Amortized ​ Fair Market General obligation bonds Cost Value Cost Value State of issuance ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Texas ​ $ 76,494 ​ $ 81,128 ​ $ 59,439 ​ $ 61,519 California ​ ​ 27,447 ​ ​ 29,067 ​ ​ 23,882 ​ ​ 25,030 Washington ​ ​ 23,330 ​ ​ 25,023 ​ ​ 23,392 ​ ​ 24,313 Other (21 & 24 states, respectively) ​ ​ 53,652 ​ ​ 56,532 ​ ​ 49,326 ​ ​ 50,725 Total general obligation bonds ​ ​ 180,923 ​ ​ 191,750 ​ ​ 156,039 ​ ​ 161,587 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenue bonds ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ State of issuance ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Texas ​ ​ 7,053 ​ ​ 7,452 ​ ​ 6,035 ​ ​ 6,298 Washington ​ ​ 2,256 ​ ​ 2,377 ​ ​ 1,737 ​ ​ 1,856 California ​ ​ 364 ​ ​ 382 ​ ​ 365 ​ ​ 380 Other (15 & 13 states, respectively) ​ ​ 19,164 ​ ​ 20,037 ​ ​ 17,724 ​ ​ 18,144 Total revenue bonds ​ ​ 28,837 ​ ​ 30,248 ​ ​ 25,861 ​ ​ 26,678 Total obligations of states and political subdivisions ​ $ 209,760 ​ $ 221,998 ​ $ 181,900 ​ $ 188,265 ​ The revenue bonds in the Company’s investment securities portfolios were issued by government municipalities and agencies to fund public services such as utilities (water, sewer, and power), educational facilities, and general public and economic improvements. The primary sources of revenue for these bonds are delineated in the table below, which shows the amortized cost and fair market values for the largest revenue concentrations as of the indicated dates. Revenue Bonds by Type (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ December 31, 2019 ​ ​ Amortized ​ Fair Market ​ Amortized ​ Fair Market Revenue bonds Cost Value Cost Value Revenue source: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Water ​ $ 10,363 ​ $ 10,949 ​ $ 7,515 ​ $ 7,775 Sewer ​ ​ 5,219 ​ ​ 5,408 ​ ​ 4,760 ​ ​ 4,811 Sales tax ​ ​ 3,572 ​ ​ 3,743 ​ ​ 1,949 ​ ​ 1,995 Lease ​ ​ 2,773 ​ ​ 2,864 ​ ​ 3,596 ​ ​ 3,678 Charter school aid ​ ​ 1,565 ​ ​ 1,689 ​ ​ 1,232 ​ ​ 1,290 Other (8 and 8 sources, respectively) ​ ​ 5,345 ​ ​ 5,595 ​ ​ 6,809 ​ ​ 7,129 Total revenue bonds ​ $ 28,837 ​ $ 30,248 ​ $ 25,861 ​ $ 26,678 ​ Low-Income Housing Tax Credit (“LIHTC”) Fund Investments The Company has the ability to invest in limited partnerships which own housing projects that qualify for federal and/or California state tax credits, by mandating a specified percentage of low-income tenants for each project. The primary investment return comes from tax credits that flow through to investors. Because rent levels are lower than standard market rents and the projects are generally highly leveraged, each project also typically generates tax-deductible operating losses that are allocated to the limited partners for tax purposes. The Company made investment commitments to nine different LIHTC fund limited partnerships from 2001 through 2017, all of which were California-focused funds that help the Company meet its obligations under the Community Reinvestment Act. We utilize the cost method of accounting for our LIHTC fund investments, under which we initially record on our balance sheet an asset that represents the total cash expected to be invested over the life of the partnership. Any commitments or contingent commitments for future investment are reflected as a liability. The income statement reflects tax credits and any other tax benefits from these investments “below the line” within our income tax provision, while the initial book value of the investment is amortized on a straight-line basis as an offset to noninterest income, over the time period in which the tax credits and tax benefits are expected to be received. As of June 30, 2020, our total LIHTC investment book balance was $3.8 million, which includes $0.2 million in remaining commitments for additional capital contributions. There were million associated with those investments was netted against pre-tax noninterest income for the same time period. The Company also recognized a million gain during the same period for the sale of a single fund property that was at the end of its tax credit life. Our LIHTC investments are evaluated annually for potential impairment, and we have concluded that the carrying value of the investments is stated fairly and is not impaired.

Credit Quality and Nonperformin

Credit Quality and Nonperforming Assets	6 Months Ended
	Jun. 30, 2020
Credit Quality and Nonperforming Assets [Abstract]
Credit Quality and Nonperforming Assets	Note 10 – Credit Quality and Nonperforming Assets Credit Quality Classifications The Company monitors the credit quality of loans on a continuous basis using the regulatory and accounting classifications of pass, special mention, substandard and impaired to characterize the associated credit risk. Balances classified as “loss” are immediately charged off. The Company conforms to the following definitions for its risk classifications: ● Pass : Larger non-homogeneous loans not meeting the risk rating definitions below, and smaller homogeneous loans that are not assessed on an individual basis. ● Special mention : Loans which have potential issues that deserve the close attention of Management. If left uncorrected, those potential weaknesses could eventually diminish the prospects for full repayment of principal and interest according to the contractual terms of the loan agreement, or could result in deterioration of the Company’s credit position at some future date. ● Substandard : Loans that have at least one clear and well-defined weakness that could jeopardize the ultimate recoverability of all principal and interest, such as a borrower displaying a highly leveraged position, unfavorable financial operating results and/or trends, uncertain repayment sources or an otherwise deteriorated financial condition. ● Impaired : A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Impaired loans include all nonperforming loans and restructured troubled debt (“TDRs”). A TDR may be nonperforming or performing, depending on its accrual status and the demonstrated ability of the borrower to comply with restructured terms (see “Troubled Debt Restructurings” section below for additional information on TDRs). Credit quality classifications for the Company’s loan balances were as follows, as of the dates indicated: Credit Quality Classifications (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ Pass Special Substandard Impaired Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ 89,225 ​ $ — ​ $ — ​ $ — ​ $ 89,225 Other construction/land ​ ​ 87,747 ​ ​ 2,227 ​ ​ — ​ ​ 571 ​ ​ 90,545 1-4 family - closed end ​ ​ 172,085 ​ ​ 1,635 ​ ​ 146 ​ ​ 4,205 ​ ​ 178,071 Equity lines ​ ​ 38,147 ​ ​ 1,955 ​ ​ 60 ​ ​ 4,156 ​ ​ 44,318 Multi-family residential ​ ​ 55,577 ​ ​ — ​ ​ — ​ ​ 344 ​ ​ 55,921 Commercial real estate - owner occupied ​ ​ 304,684 ​ ​ 3,444 ​ ​ 3,068 ​ ​ 2,667 ​ ​ 313,863 Commercial real estate - non-owner occupied ​ ​ 689,589 ​ ​ 511 ​ ​ 565 ​ ​ 627 ​ ​ 691,292 Farmland ​ ​ 132,584 ​ ​ 1,040 ​ ​ 128 ​ ​ 702 ​ ​ 134,454 Total real estate ​ ​ 1,569,638 ​ ​ 10,812 ​ ​ 3,967 ​ ​ 13,272 ​ ​ 1,597,689 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ ​ 48,356 ​ ​ 159 ​ ​ — ​ ​ 2 ​ ​ 48,516 Commercial and industrial ​ ​ 208,434 ​ ​ 11,213 ​ ​ 471 ​ ​ 1,383 ​ ​ 221,502 Mortgage warehouse ​ ​ 338,124 ​ ​ — ​ ​ — ​ ​ — ​ ​ 338,124 Consumer loans ​ ​ 5,834 ​ ​ 54 ​ ​ 34 ​ ​ 344 ​ ​ 6,266 Total gross loans and leases ​ $ 2,170,386 ​ $ 22,238 ​ $ 4,472 ​ $ 15,001 ​ $ 2,212,097 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ Pass Special Substandard Impaired Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ 105,979 ​ $ — ​ $ — ​ $ — ​ $ 105,979 Other construction/land ​ ​ 90,761 ​ ​ 98 ​ ​ — ​ ​ 554 ​ ​ 91,413 1-4 family - closed end ​ ​ 194,572 ​ ​ 2,425 ​ ​ 164 ​ ​ 3,020 ​ ​ 200,181 Equity lines ​ ​ 43,111 ​ ​ 1,995 ​ ​ 72 ​ ​ 4,421 ​ ​ 49,599 Multi-family residential ​ ​ 54,104 ​ ​ — ​ ​ — ​ ​ 353 ​ ​ 54,457 Commercial real estate - owner occupied ​ ​ 334,460 ​ ​ 4,005 ​ ​ 3,384 ​ ​ 2,034 ​ ​ 343,883 Commercial real estate - non-owner occupied ​ ​ 409,289 ​ ​ 1,164 ​ ​ 11 ​ ​ 2,105 ​ ​ 412,569 Farmland ​ ​ 142,594 ​ ​ 1,048 ​ ​ 132 ​ ​ 259 ​ ​ 144,033 Total real estate ​ ​ 1,374,870 ​ ​ 10,735 ​ ​ 3,763 ​ ​ 12,746 ​ ​ 1,402,114 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ ​ 47,814 ​ ​ 217 ​ ​ — ​ ​ 5 ​ ​ 48,036 Commercial and industrial ​ ​ 100,584 ​ ​ 13,415 ​ ​ 556 ​ ​ 977 ​ ​ 115,532 Mortgage warehouse ​ ​ 189,103 ​ ​ — ​ ​ — ​ ​ — ​ ​ 189,103 Consumer loans ​ ​ 7,245 ​ ​ 85 ​ ​ 25 ​ ​ 425 ​ ​ 7,780 Total gross loans and leases ​ $ 1,719,616 ​ $ 24,452 ​ $ 4,344 ​ $ 14,153 ​ $ 1,762,565 ​ Past Due and Nonperforming Assets Nonperforming assets are comprised of loans for which the Company is no longer accruing interest, and foreclosed assets. The Company’s foreclosed assets can include mobile homes and/or OREO, which consists of commercial and/or residential real estate properties acquired by foreclosure or similar means that the Company is offering or will offer for sale. Foreclosed assets totaled 31, 2019. Gross nonperforming loans totaled 31, 2019. Loans and leases are classified as nonperforming when reasonable doubt surfaces with regard to the ability of the Company to collect all principal and interest. At that point, we stop accruing interest on the loan or lease in question and reverse any previously-recognized interest to the extent that it is uncollected or associated with interest-reserve loans. Any asset for which principal or interest has been in default for 90 days or more is also placed on non-accrual status even if interest is still being received, unless the asset is both well secured and in the process of collection. Not included in past due and nonperforming assets are loan modifications executed under Section 4013 of the CARES Act. There were million, with payment deferrals under these loan modifications. Approximately An aging of the Company’s loan balances is presented in the following tables, by number of days past due as of the indicated dates: Loan Portfolio Aging (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ 30-59 Days 60-89 Days 90 Days Or (1) Total Current Total Financing Non-Accrual (2) Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 89,225 ​ $ 89,225 ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 90,545 ​ ​ 90,545 ​ ​ 4 1-4 family - closed end ​ ​ 11 ​ ​ 684 ​ ​ 409 ​ ​ 1,104 ​ ​ 176,967 ​ ​ 178,071 ​ ​ 843 Equity lines ​ ​ 84 ​ ​ 1,120 ​ ​ 349 ​ ​ 1,553 ​ ​ 42,765 ​ ​ 44,318 ​ ​ 626 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 55,921 ​ ​ 55,921 ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ 989 ​ ​ 989 ​ ​ 312,874 ​ ​ 313,863 ​ ​ 1,909 Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ 628 ​ ​ 628 ​ ​ 690,664 ​ ​ 691,292 ​ ​ 627 Farmland ​ ​ 128 ​ ​ — ​ ​ 684 ​ ​ 812 ​ ​ 133,642 ​ ​ 134,454 ​ ​ 702 Total real estate ​ ​ 223 ​ ​ 1,804 ​ ​ 3,059 ​ ​ 5,086 ​ ​ 1,592,603 ​ ​ 1,597,689 ​ ​ 4,711 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 48,516 ​ ​ 48,516 ​ ​ — Commercial and industrial ​ ​ 337 ​ ​ 16 ​ ​ 772 ​ ​ 1,125 ​ ​ 220,377 ​ ​ 221,502 ​ ​ 1,086 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 338,124 ​ ​ 338,124 ​ ​ — Consumer ​ ​ 4 ​ ​ 32 ​ ​ — ​ ​ 36 ​ ​ 6,230 ​ ​ 6,266 ​ ​ 11 Total gross loans and leases ​ $ 564 ​ $ 1,852 ​ $ 3,831 ​ $ 6,247 ​ $ 2,205,850 ​ $ 2,212,097 ​ $ 5,808 (1) As of June 30, 2020 there were no loans over 90 days past due and still accruing. (2) Included in total financing receivables Loan Portfolio Aging (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ 30-59 Days 60-89 Days 90 Days Or (1) Total Current Total Financing Non-Accrual (2) Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 105,979 ​ $ 105,979 ​ $ — Other construction/land ​ ​ 16 ​ ​ — ​ ​ — ​ ​ 16 ​ ​ 91,397 ​ ​ 91,413 ​ ​ 31 1-4 family - closed end ​ ​ 485 ​ ​ 380 ​ ​ 659 ​ ​ 1,524 ​ ​ 198,657 ​ ​ 200,181 ​ ​ 741 Equity lines ​ ​ 177 ​ ​ 10 ​ ​ 78 ​ ​ 265 ​ ​ 49,334 ​ ​ 49,599 ​ ​ 480 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 54,457 ​ ​ 54,457 ​ ​ — Commercial real estate - owner occupied ​ ​ 1,552 ​ ​ — ​ ​ 88 ​ ​ 1,640 ​ ​ 342,243 ​ ​ 343,883 ​ ​ 1,440 Commercial real estate - non-owner occupied ​ ​ 500 ​ ​ — ​ ​ 1,605 ​ ​ 2,105 ​ ​ 410,464 ​ ​ 412,569 ​ ​ 2,105 Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 144,033 ​ ​ 144,033 ​ ​ 258 Total real estate ​ ​ 2,730 ​ ​ 390 ​ ​ 2,430 ​ ​ 5,550 ​ ​ 1,396,564 ​ ​ 1,402,114 ​ ​ 5,055 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 48,036 ​ ​ 48,036 ​ ​ — Commercial and industrial ​ ​ 160 ​ ​ 215 ​ ​ — ​ ​ 375 ​ ​ 115,157 ​ ​ 115,532 ​ ​ 651 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 189,103 ​ ​ 189,103 ​ ​ — Consumer ​ ​ 55 ​ ​ 12 ​ ​ 2 ​ ​ 69 ​ ​ 7,711 ​ ​ 7,780 ​ ​ 31 Total gross loans and leases ​ $ 2,945 ​ $ 617 ​ $ 2,432 ​ $ 5,994 ​ $ 1,756,571 ​ $ 1,762,565 ​ $ 5,737 (1) As of December 31, 2019 there were no loans over 90 days past due and still accruing. (2) Included in total financing receivables ​ Troubled Debt Restructurings A loan that is modified for a borrower who is experiencing financial difficulty is classified as a troubled debt restructuring (TDR) if the modification constitutes a concession, excluding loan modifications that are COVID-19 related and made in accordance with the interagency guidance and the CARES Act as described in Note 3, above. At June 30, 2020, the Company had a total of million in TDRs that were on non-accrual status. Generally, a non-accrual loan that has been modified as a TDR remains on non-accrual status for a period of at least six months to demonstrate the borrower’s ability to comply with the modified terms. However, performance prior to the modification, or significant events that coincide with the modification, could result in a loan’s return to accrual status after a shorter performance period or even at the time of loan modification. Regardless of the period of time that has elapsed, if the borrower’s ability to meet the revised payment schedule is uncertain then the loan will be kept on non-accrual status. Moreover, a TDR is generally considered to be in default when it appears that the customer will not likely be able to repay all principal and interest pursuant to restructured terms. The Company may agree to different types of concessions when modifying a loan or lease. The tables below summarize TDRs which were modified during the noted periods, by type of concession: Troubled Debt Restructurings, by Type of Loan Modification (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2020 ​ Rate Modification Term Interest Only Modification Rate & Term Modification Term & Interest Modification ​ Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ — ​ $ 85 ​ $ — ​ $ — ​ $ — ​ $ 85 1-4 family - closed-end ​ ​ — ​ ​ 1,325 ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,325 Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ 178 ​ ​ — ​ ​ — ​ ​ — ​ ​ 178 Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ — ​ ​ 1,588 ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,588 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ 28 ​ ​ — ​ ​ — ​ ​ — ​ ​ 28 Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ $ — ​ $ 1,616 ​ $ — ​ $ — ​ $ — ​ $ 1,616 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2019 ​ Rate Modification Term Interest Only Rate & Term Modification Term & Interest Modification ​ Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ 244 ​ ​ — ​ ​ — ​ ​ — ​ ​ 244 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ — ​ ​ 244 ​ ​ — ​ ​ — ​ ​ — ​ ​ 244 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ 22 ​ ​ — ​ ​ 52 ​ ​ — ​ ​ 74 Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ 50 ​ ​ — ​ ​ 50 Total ​ $ — ​ $ 266 ​ $ — ​ $ 102 ​ $ — ​ $ 368 ​ ​ Troubled Debt Restructurings, by Type of Loan Modification (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2020 ​ Rate Modification Term Interest Only Modification Rate & Term Modification Term & Interest Modification ​ Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ $ ​ Other construction/land ​ $ — ​ $ 85 ​ $ — ​ $ — ​ $ — ​ ​ 85 1-4 family - closed-end ​ ​ — ​ ​ 1,325 ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,325 Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ 178 ​ ​ — ​ ​ — ​ ​ 338 ​ ​ 516 Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ — ​ ​ 1,588 ​ ​ — ​ ​ — ​ ​ 338 ​ ​ 1,926 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ — Commercial and industrial ​ ​ — ​ ​ 28 ​ ​ — ​ ​ — ​ ​ — ​ ​ 28 Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ $ — ​ $ 1,616 ​ $ — ​ $ — ​ $ 338 ​ $ 1,954 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2019 ​ Rate Modification Term Interest Only Modification Rate & Term Modification Term & Interest Modification ​ Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ 344 ​ ​ — ​ ​ — ​ ​ — ​ ​ 344 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ — ​ ​ 344 ​ ​ — ​ ​ — ​ ​ — ​ ​ 344 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ — Commercial and industrial ​ ​ 94 ​ ​ 22 ​ ​ — ​ ​ 52 ​ ​ — ​ ​ 168 Consumer loans ​ ​ — ​ ​ 9 ​ ​ — ​ ​ 50 ​ ​ — ​ ​ 59 Total ​ $ 94 ​ $ 375 ​ $ — ​ $ 102 ​ $ — ​ $ 571 ​ Troubled Debt Restructurings (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2020 ​ ​ ​ ​ Pre- ​ Post- ​ ​ ​ ​ ​ Number of Outstanding Outstanding Reserve ⁽ ¹ ⁾ Reserve Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ 1 ​ $ 86 ​ $ 85 ​ $ 40 ​ $ 41 1-4 family - closed-end ​ 1 ​ ​ 1,325 ​ ​ 1,325 ​ ​ 10 ​ ​ 17 Equity lines ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ 1 ​ ​ 178 ​ ​ 178 ​ ​ 8 ​ ​ 9 Farmland ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ ​ ​ 1,589 ​ ​ 1,588 ​ ​ 58 ​ ​ 67 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ 1 ​ ​ 28 ​ ​ 28 ​ ​ 1 ​ ​ 2 Consumer loans ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ ​ $ 1,617 ​ $ 1,616 ​ $ 59 ​ $ 69 (1) This represents the change in the ALLL reserve for these credits measured as the difference between the specific post-modification impairment reserve and the pre-modification reserve calculated under our general allowance for loan loss methodology. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2019 ​ ​ ​ ​ Pre- ​ Post- ​ ​ ​ ​ ​ ​ ​ Number of Outstanding Outstanding Reserve ⁽ ¹ ⁾ Reserve Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ 0 ​ $ — ​ $ — ​ $ — ​ $ — 1-4 family - closed-end ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ 1 ​ ​ 244 ​ ​ 244 ​ ​ — ​ ​ 1 Multi-family residential ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ ​ ​ 244 ​ ​ 244 ​ ​ — ​ ​ 1 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ 2 ​ ​ 74 ​ ​ 74 ​ ​ — ​ ​ 45 Consumer loans ​ 1 ​ ​ 50 ​ ​ 50 ​ ​ (45) ​ ​ 2 Total ​ ​ ​ $ 368 ​ $ 368 ​ $ $(45) ​ $ 48 (1) This represents the change in the ALLL reserve for these credits measured as the difference between the specific post-modification impairment reserve and the pre-modification reserve calculated under our general allowance for loan loss methodology. ​ Troubled Debt Restructurings (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2020 ​ ​ ​ ​ Pre- ​ Post- ​ ​ ​ ​ ​ ​ ​ Number of Outstanding Outstanding Reserve ⁽ ¹ ⁾ Reserve Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ 1 ​ $ 86 ​ $ 85 ​ $ 40 ​ $ 41 1-4 family - closed-end ​ 1 ​ ​ 1,325 ​ ​ 1,325 ​ ​ 10 ​ ​ 17 Equity lines ​ 0 ​ ​ ` ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ 2 ​ ​ 516 ​ ​ 516 ​ ​ 8 ​ ​ 9 Farmland ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ ​ ​ 1,927 ​ ​ 1,926 ​ ​ 58 ​ ​ 67 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ 1 ​ ​ 28 ​ ​ 28 ​ ​ 1 ​ ​ 2 Consumer loans ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ ​ $ 1,955 ​ $ 1,954 ​ $ 59 ​ $ 69 (1) This represents the change in the ALLL reserve for these credits measured as the difference between the specific post-modification impairment reserve and the pre-modification reserve calculated under our general allowance for loan loss methodology. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2019 ​ ​ ​ ​ Pre- ​ Post- ​ ​ ​ ​ ​ ​ ​ Number of Outstanding Outstanding Reserve ⁽ ¹ ⁾ Reserve Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ 0 ​ $ — ​ $ — ​ $ — ​ $ — 1-4 family - closed-end ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ 2 ​ ​ 344 ​ ​ 344 ​ ​ — ​ ​ 1 Multi-family residential ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ ​ ​ 344 ​ ​ 344 ​ ​ — ​ ​ 1 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ 4 ​ ​ 168 ​ ​ 168 ​ ​ (20) ​ ​ 46 Consumer loans ​ 2 ​ ​ 59 ​ ​ 59 ​ ​ (47) ​ ​ 3 Total ​ ​ ​ $ 571 ​ $ 571 ​ $ $(67) ​ $ 50 (1) This represents the change in the ALLL reserve for these credits measured as the difference between the specific post-modification impairment reserve and the pre-modification reserve calculated under our general allowance for loan loss methodology. ​ The Company had no finance receivables modified as TDRs within the previous twelve months that defaulted or were charged off during the six-month periods ended June 30, 2020 and 2019. Purchased Credit Impaired Loans The Company may acquire loans which show evidence of credit deterioration since origination. These purchased credit impaired (“PCI”) loans are recorded at the amount paid, since there is no carryover of the seller’s allowance for loan losses. Potential losses on PCI loans subsequent to acquisition are recognized by an increase in the allowance for loan losses. PCI loans are accounted for individually or are aggregated into pools of loans based on common risk characteristics. The Company projects the amount and timing of expected cash flows, and expected cash receipts in excess of the amount paid for any such loans are recorded as interest income over the remaining life of the loan or pool of loans (accretable yield). The excess of contractual principal and interest over expected cash flows is not recorded (nonaccretable difference). Expected cash flows are periodically re-evaluated throughout the life of the loan or pool of loans. If the present value of the expected cash flows is determined at any time to be less than the carrying amount, a reserve is recorded. If the present value of the expected cash flows is greater than the carrying amount, it is recognized as part of future interest income. Our acquisition of Santa Clara Valley Bank in 2014 included certain loans which have shown evidence of credit deterioration since origination, and for which it was probable at acquisition that all contractually required payments would not be collected. Purchased Credit Impaired Loans: (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ Unpaid Principal Balance Carrying Value Real estate secured ​ $ 83 ​ $ 83 Total purchased credit impaired loans ​ $ 83 ​ $ $83 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ Unpaid Principal Balance Carrying Value Real estate secured ​ $ 88 ​ $ — Total purchased credit impaired loans ​ $ — ​ $ — ​ There was no allowance for loan losses allocated for PCI loans as of June 30, 2020, however, an allowance totaling $0.1 million was allocated for PCI loans as of December 31, 2019. There was

Allowance for Loan and Lease Lo

Allowance for Loan and Lease Losses	6 Months Ended
	Jun. 30, 2020
Provision for Loan and Lease Losses [Abstract]
Allowance for Loan and Lease Losses	Note 11 – Allowance for Loan and Lease Losses The Company’s allowance for loan and lease losses, a contra-asset, is established through a provision for loan and lease losses. The allowance is maintained at a level that is considered adequate to absorb probable losses on certain specifically identified impaired loans, as well as probable incurred losses inherent in the remaining loan portfolio. Specifically identifiable and quantifiable losses are immediately charged off against the allowance; recoveries are generally recorded only when cash payments are received subsequent to the charge off. We employ a systematic methodology, consistent with FASB guidelines on loss contingencies and impaired loans, for determining the appropriate level of the allowance for loan and lease losses and adjusting it to that level at least quarterly. Pursuant to our methodology, impaired loans and leases are individually analyzed and a criticized asset action plan is completed specifying the financial status of the borrower and, if applicable, the characteristics and condition of collateral and any associated liquidation plan. A specific loss allowance is created for each impaired loan, if necessary. The following tables disclose the unpaid principal balance, recorded investment, average recorded investment, and interest income recognized for impaired loans on our books as of the dates indicated. Balances are shown by loan type, and are further broken out by those that required an allowance and those that did not, with the associated allowance disclosed for those that required such. Included in the valuation allowance for impaired loans shown in the tables below are specific reserves allocated to TDRs, totaling Impaired Loans (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ Unpaid Principal (1) Recorded (2) Related Average Interest Income (3) With an allowance recorded ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ 690 ​ ​ 571 ​ ​ 173 ​ ​ 586 ​ ​ 21 1-4 family - closed-end ​ ​ 3,379 ​ ​ 3,379 ​ ​ 71 ​ ​ 3,406 ​ ​ 58 Equity lines ​ ​ 3,909 ​ ​ 3,856 ​ ​ 317 ​ ​ 3,971 ​ ​ 69 Multi-family residential ​ ​ 344 ​ ​ 344 ​ ​ 18 ​ ​ 347 ​ ​ 12 Commercial real estate- owner occupied ​ ​ 757 ​ ​ 757 ​ ​ 11 ​ ​ 763 ​ ​ 18 Commercial real estate- non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ 237 ​ ​ 237 ​ ​ 3 ​ ​ 237 ​ ​ — Total real estate ​ ​ 9,316 ​ ​ 9,144 ​ ​ 593 ​ ​ 9,310 ​ ​ 178 Agricultural ​ ​ 2 ​ ​ 2 ​ ​ — ​ ​ 4 ​ ​ — Commercial and industrial ​ ​ 1,282 ​ ​ 1,262 ​ ​ 671 ​ ​ 1,297 ​ ​ 9 Consumer loans ​ ​ 382 ​ ​ 344 ​ ​ 95 ​ ​ 361 ​ ​ 15 Subtotal ​ ​ 10,982 ​ ​ 10,752 ​ ​ 1,359 ​ ​ 10,972 ​ ​ 202 With no related allowance recorded ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1 1-4 family - closed-end ​ ​ 826 ​ ​ 826 ​ ​ — ​ ​ 845 ​ ​ — Equity lines ​ ​ 300 ​ ​ 300 ​ ​ — ​ ​ 304 ​ ​ 2 Commercial real estate- owner occupied ​ ​ 2,029 ​ ​ 1,910 ​ ​ — ​ ​ 1,937 ​ ​ — Commercial real estate- non-owner occupied ​ ​ 627 ​ ​ 627 ​ ​ — ​ ​ 634 ​ ​ — Farmland ​ ​ 465 ​ ​ 465 ​ ​ — ​ ​ 467 ​ ​ — Total real estate ​ ​ 4,247 ​ ​ 4,128 ​ ​ — ​ ​ 4,187 ​ ​ 3 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ 142 ​ ​ 121 ​ ​ — ​ ​ 206 ​ ​ — Consumer loans ​ ​ 9 ​ ​ — ​ ​ — ​ ​ 1 ​ ​ — Subtotal ​ ​ 4,398 ​ ​ 4,249 ​ ​ — ​ ​ 4,394 ​ ​ 3 Total ​ $ 15,380 ​ $ 15,001 ​ $ 1,359 ​ $ 15,366 ​ $ 205 (1) Contractual principal balance due from customer. (2) Principal balance on Company’s books, less any direct charge offs. (3) Interest income is recognized on performing balances on a regular accrual basis. Impaired Loans (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ Unpaid Principal (1) Recorded (2) Related Average Interest Income (3) With an allowance recorded ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ 656 ​ $ 537 ​ $ 157 ​ $ 563 ​ $ 32 1-4 family - closed-end ​ ​ 2,298 ​ ​ 2,298 ​ ​ 58 ​ ​ 2,365 ​ ​ 146 Equity lines ​ ​ 4,173 ​ ​ 4,120 ​ ​ 252 ​ ​ 4,185 ​ ​ 200 Multi-family residential ​ ​ 353 ​ ​ 353 ​ ​ 17 ​ ​ 361 ​ ​ 23 Commercial real estate- owner occupied ​ ​ 593 ​ ​ 593 ​ ​ 6 ​ ​ 606 ​ ​ 38 Commercial real estate- non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ 237 ​ ​ 237 ​ ​ 3 ​ ​ 256 ​ ​ — Total real estate ​ ​ 8,310 ​ ​ 8,138 ​ ​ 493 ​ ​ 8,336 ​ ​ 439 Agricultural ​ ​ 5 ​ ​ 5 ​ ​ 1 ​ ​ 6 ​ ​ — Commercial and industrial ​ ​ 915 ​ ​ 896 ​ ​ 219 ​ ​ 1,140 ​ ​ 29 Consumer loans ​ ​ 464 ​ ​ 425 ​ ​ 114 ​ ​ 469 ​ ​ 35 Subtotal ​ ​ 9,694 ​ ​ 9,464 ​ ​ 827 ​ ​ 9,951 ​ ​ 503 With no related allowance recorded ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family - closed-end ​ $ 755 ​ $ 722 ​ $ — ​ $ 726 ​ $ — Equity lines ​ ​ 326 ​ ​ 301 ​ ​ — ​ ​ 310 ​ ​ 5 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate- owner occupied ​ ​ 1,560 ​ ​ 1,440 ​ ​ — ​ ​ 1,477 ​ ​ — Commercial real estate- non-owner occupied ​ ​ 3,295 ​ ​ 2,105 ​ ​ — ​ ​ 3,267 ​ ​ — Farmland ​ ​ 22 ​ ​ 22 ​ ​ — ​ ​ 25 ​ ​ — Total real estate ​ ​ 6,010 ​ ​ 4,607 ​ ​ — ​ ​ 6,382 ​ ​ 9 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ 102 ​ ​ 81 ​ ​ — ​ ​ 162 ​ ​ — Consumer loans ​ ​ 9 ​ ​ — ​ ​ — ​ ​ 140 ​ ​ 15 Subtotal ​ ​ 6,121 ​ ​ 4,688 ​ ​ — ​ ​ 6,684 ​ ​ 24 Total ​ $ 15,815 ​ $ 14,152 ​ $ 827 ​ $ 16,635 ​ $ 527 (1) Contractual principal balance due from customer. (2) Principal balance on Company’s books, less any direct charge offs. (3) Interest income is recognized on performing balances on a regular accrual basis. The specific loss allowance for an impaired loan generally represents the difference between the book value of the loan and either the fair value of underlying collateral less estimated disposition costs, or the loan’s net present value as determined by a discounted cash flow analysis. The discounted cash flow approach is typically used to measure impairment on loans for which it is anticipated that repayment will be provided from cash flows other than those generated solely by the disposition or operation of underlying collateral. However, historical loss rates may be used by the Company to determine a specific loss allowance if those rates indicate a higher potential reserve need than the discounted cash flow analysis. Any change in impairment attributable to the passage of time is accommodated by adjusting the loss allowance accordingly. For loans where repayment is expected to be provided by the disposition or operation of the underlying collateral, impairment is measured using the fair value of the collateral. If the collateral value, net of the expected costs of disposition, is less than the loan balance, then a specific loss reserve is established for the shortfall in collateral coverage. If the discounted collateral value is greater than or equal to the loan balance, no specific loss reserve is required. At the time a collateral-dependent loan is designated as nonperforming, a new appraisal is ordered and typically received within 30 to 60 days if a recent appraisal is not already available. We generally use external appraisals to determine the fair value of the underlying collateral for nonperforming real estate loans, although the Company’s licensed staff appraisers may update older appraisals based on current market conditions and property value trends. Until an updated appraisal is received, the Company uses the existing appraisal to determine the amount of the specific loss allowance that may be required. The specific loss allowance is adjusted, as necessary, once a new appraisal is received. Updated appraisals are generally ordered at least annually for collateral-dependent loans that remain impaired, and current appraisals were available or in process for of the Company’s impaired real estate loan balances at June 30, 2020. Furthermore, the Company analyzes collateral-dependent loans on at least a quarterly basis, to determine if any portion of the recorded investment in such loans can be identified as uncollectible and would therefore constitute a confirmed loss. All amounts deemed to be uncollectible are promptly charged off against the Company’s allowance for loan and lease losses, with the loan then carried at the fair value of the collateral, as appraised, less estimated costs of disposition if applicable. Once a charge-off or write-down is recorded, it will not be restored to the loan balance on the Company’s accounting books. Our methodology also provides for the establishment of a “general” allowance for probable incurred losses inherent in loans and leases that are not impaired. Unimpaired loan balances are segregated by credit quality, and are then evaluated in pools with common characteristics. At the present time, pools are based on the same segmentation of loan types presented in our regulatory filings. While this methodology utilizes historical loss data and other measurable information, the credit classification of loans and the establishment of the allowance for loan and lease losses are both to some extent based on Management’s judgment and experience. Our methodology incorporates a variety of risk considerations, both quantitative and qualitative, in establishing an allowance for loan and lease losses that Management believes is appropriate at each reporting date. Quantitative information includes our historical loss experience, delinquency and charge-off trends, and current collateral values. Qualitative factors include the general economic environment in our markets and, in particular, the condition of the agricultural industry and other key industries. Lending policies and procedures (including underwriting standards), the experience and abilities of lending staff, the quality of loan review, credit concentrations (by geography, loan type, industry and collateral type), the rate of loan portfolio growth, and changes in legal or regulatory requirements are additional factors that are considered. The total general reserve established for probable incurred losses on unimpaired loans was There were no material changes to the methodology used to determine our allowance for loan and lease losses during the three months ended June 30, 2020, although as outlined in Note 3 to the consolidated financial statements we will substantially update our methodology upon the implementation of the CECL accounting method under Financial Accounting Standards Board (FASB) Accounting Standards Update ASU 2016-13 and related amendments, Financial Instruments – Credit Losses (Topic 326) when the earlier of the national emergency related to the outbreak of COVID-19 ends or December 31, 2020. Moreover, we will continue to enhance our methodology as needed in order to comply with regulatory and accounting requirements, keep pace with the size and complexity of our loan and lease portfolio, and respond to pressures created by external forces. We engage outside firms on a regular basis to assess our methodology and perform independent credit reviews of our loan and lease portfolio. In addition, the FDIC and the California Department of Business Oversight (DBO) review the allowance for loan and lease losses as an integral part of their audit and examination processes. Management believes deferring the implementation of “CECL” and continuing with the current incurred loss methodology is appropriate given the impact of the economic uncertainty surrounding COVID-19 and related governmental and regulatory actions taken in response thereto, such as the stimulus provisions of the CARES Act. The tables that follow detail the activity in the allowance for loan and lease losses for the periods noted: Allowance for Credit Losses and Recorded Investment in Financing Receivables (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2020 ​ ​ ​ Real Estate ​ ​ Agricultural ​ ​ Commercial and (1) ​ ​ Consumer ​ ​ Unallocated ​ ​ Total ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance ​ $ 7,315 ​ $ 235 ​ $ 2,754 ​ $ 1,137 ​ $ 12 ​ $ 11,453 Charge-offs ​ ​ — ​ ​ — ​ ​ (67) ​ ​ (286) ​ ​ — ​ ​ (353) Recoveries ​ ​ 3 ​ ​ — ​ ​ 20 ​ ​ 237 ​ ​ — ​ ​ 260 Provision ​ ​ 1,532 ​ ​ (3) ​ ​ 908 ​ ​ (239) ​ ​ 2 ​ ​ 2,200 Ending balance ​ $ 8,850 ​ $ 232 ​ $ 3,615 ​ $ 849 ​ $ 14 ​ $ 13,560 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2020 ​ Real Estate Agricultural Commercial and (1) Consumer Unallocated Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance $ 5,635 $ 193 $ 2,685 $ 1,278 $ 132 $ 9,923 Charge-offs ​ ​ — ​ ​ — ​ ​ (92) ​ ​ (903) ​ ​ — ​ ​ (995) Recoveries ​ ​ 74 ​ ​ — ​ ​ 48 ​ ​ 510 ​ ​ — ​ ​ 632 Provision ​ ​ 3,141 ​ ​ 39 ​ ​ 974 ​ ​ (36) ​ ​ (118) ​ ​ 4,000 Ending balance ​ $ 8,850 ​ $ 232 ​ $ 3,615 ​ $ 849 ​ $ 14 ​ $ 13,560 Reserves: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Specific ​ $ 593 ​ $ — ​ $ 671 ​ $ 95 ​ $ — ​ $ 1,359 General ​ ​ 8,257 ​ ​ 232 ​ ​ 2,944 ​ ​ 754 ​ ​ 14 ​ ​ 12,201 Ending balance ​ $ 8,850 ​ $ 232 ​ $ 3,615 ​ $ 849 ​ $ 14 ​ $ 13,560 Loans evaluated for impairment: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually ​ $ 13,272 ​ $ 2 ​ $ 1,383 ​ $ 344 ​ $ — ​ $ 15,001 Collectively ​ ​ 1,584,417 ​ ​ 48,514 ​ ​ 558,243 ​ ​ 5,922 ​ ​ — ​ ​ 2,197,096 Ending balance ​ $ 1,597,689 ​ $ 48,516 ​ $ 559,626 ​ $ 6,266 ​ $ — ​ $ 2,212,097 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, 2019 ​ Real Estate Agricultural Commercial and (1) Consumer Unallocated Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance ​ $ 5,831 ​ $ 256 ​ $ 2,394 ​ $ 1,239 ​ $ 30 ​ $ 9,750 Charge-offs ​ ​ (1,190) ​ ​ — ​ ​ (1,274) ​ ​ (2,409) ​ ​ — ​ ​ (4,873) Recoveries ​ ​ 647 ​ ​ — ​ ​ 690 ​ ​ 1,159 ​ ​ — ​ ​ 2,496 Provision ​ ​ 347 ​ ​ (63) ​ ​ 875 ​ ​ 1,289 ​ ​ 102 ​ ​ 2,550 Ending balance ​ $ 5,635 ​ $ 193 ​ $ 2,685 ​ $ 1,278 ​ $ 132 ​ $ 9,923 Reserves: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Specific ​ $ 493 ​ $ 1 ​ $ 219 ​ $ 114 ​ $ — ​ $ 827 General ​ ​ 5,142 ​ ​ 192 ​ ​ 2,466 ​ ​ 1,164 ​ ​ 132 ​ ​ 9,096 Ending balance ​ $ 5,635 ​ $ 193 ​ $ 2,685 ​ $ 1,278 ​ $ 132 ​ $ 9,923 Loans evaluated for impairment: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually ​ $ 12,746 ​ $ 5 ​ $ 977 ​ $ 425 ​ $ — ​ $ 14,153 Collectively ​ ​ 1,389,368 ​ ​ 48,031 ​ ​ 303,658 ​ ​ 7,355 ​ ​ — ​ ​ 1,748,412 Ending balance ​ $ 1,402,114 ​ $ 48,036 ​ $ 304,635 ​ $ 7,780 ​ $ — ​ $ 1,762,565 (1) Includes mortgage warehouse lines. ​ Allowance for Credit Losses and Recorded Investment in Financing Receivables (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2019 ​ Real Estate Agricultural Commercial and (1) Consumer Unallocated Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance ​ $ 6,094 ​ $ 219 ​ $ 1,914 ​ $ 1,129 ​ $ 82 ​ $ 9,438 Charge-offs ​ ​ — ​ ​ — ​ ​ (254) ​ ​ (562) ​ ​ — ​ ​ (816) Recoveries ​ ​ 153 ​ ​ — ​ ​ 431 ​ ​ 277 ​ ​ — ​ ​ 861 Provision ​ ​ (278) ​ ​ (18) ​ ​ 478 ​ ​ 288 ​ ​ (70) ​ ​ 400 Ending balance ​ $ 5,969 ​ $ 201 ​ $ 2,569 ​ $ 1,132 ​ $ 12 ​ $ 9,883 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2019 ​ Real Estate Agricultural Commercial and (1) Consumer Unallocated Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance ​ $ 5,831 ​ $ 256 ​ $ 2,394 ​ $ 1,239 ​ $ 30 ​ $ 9,750 Charge-offs ​ ​ — ​ ​ — ​ ​ (832) ​ ​ (1,114) ​ ​ — ​ ​ (1,946) Recoveries ​ ​ 329 ​ ​ — ​ ​ 472 ​ ​ 578 ​ ​ — ​ ​ 1,379 Provision ​ ​ (191) ​ ​ (55) ​ ​ 535 ​ ​ 429 ​ ​ (18) ​ ​ 700 Ending balance ​ $ 5,969 ​ $ 201 ​ $ 2,569 ​ $ 1,132 ​ $ 12 ​ $ 9,883 Reserves: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Specific ​ $ 881 ​ $ 1 ​ $ 303 ​ $ 137 ​ $ — ​ $ 1,322 General ​ ​ 5,088 ​ ​ 200 ​ ​ 2,266 ​ ​ 995 ​ ​ 12 ​ ​ 8,561 Ending balance ​ $ 5,969 ​ $ 201 ​ $ 2,569 ​ $ 1,132 ​ $ 12 ​ $ 9,883 Loans evaluated for impairment: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually ​ $ 11,751 ​ $ 6 ​ $ 837 ​ $ 772 ​ $ — ​ $ 13,366 Collectively ​ ​ 1,426,425 ​ ​ 51,503 ​ ​ 279,091 ​ ​ 7,514 ​ ​ — ​ ​ 1,764,533 Ending balance ​ $ 1,438,176 ​ $ 51,509 ​ $ 279,928 ​ $ 8,286 ​ $ — ​ $ 1,777,899 (1) Includes mortgage warehouse lines.

Operating Leases

Operating Leases	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Operating Leases	Note 12 – Operating Leases We lease space under non-cancelable operating leases for 21 branch locations, three off-site ATM locations, one administrative building, one loan production office and a warehouse. Many of our leases include both lease (e.g., fixed payments including rent, taxes, and insurance costs) and non-lease components (e.g., common-area or other maintenance costs). Payments for taxes and insurance as well as non-lease components are not included in the accounting of the lease component, but are separately accounted for in occupancy expense. The Company recognized lease expense of million for both six-month periods ended June 30, 2020 and 2019. Most leases include one or more renewal options available to exercise. The exercise of lease renewal options is typically at the Company’s sole discretion; therefore, the majority of renewals to extend the lease terms are not included in our right-of-use assets and lease liabilities as they are not reasonably certain of exercise. We regularly evaluate the renewal options and when they are reasonably certain of exercise, we include the renewal period in our lease term. As most of our leases do not provide an implicit rate, we used our incremental borrowing rate in determining the present value of the lease payments. There were no sale and leaseback transactions, leveraged leases, or lease transactions with related parties during the six months ended June 30, 2020. At June 30, 2020, the Company’s right-of-use assets and operating lease liabilities were $7.5 million and $8.0 million, respectively. The weighted average remaining lease term for the lease liabilities was percent. There were obtained during the six months ended June 30, 2020. Cash paid on operating leases was Maturities of our lease liabilities for all operating leases are as follows (dollars in thousands, unaudited): ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 2020 (1) $ 1,120 2021 ​ ​ 2,020 2022 ​ ​ 1,571 2023 ​ ​ 1,113 2024 ​ ​ 749 Thereafter ​ ​ 3,196 Total ​ ​ 9,769 Less: present value discount ​ ​ (1,744) Lease liability (2) ​ $ 8,025 (1) Contractual maturities for the six months remaining in 2020. (2) Lease liability is included in other liabilities. ​ The following table presents the future minimum rental payments under leases with terms in excess of one year as of December 31, 2019 presented in accordance with ASC Topic 840, “Leases”: ​ ​ ​ ​ ​ ​ ​ December 31, 2019 2020 ​ $ 2,235 2021 ​ ​ 2,023 2022 ​ ​ 1,574 2023 ​ ​ 1,113 2024 ​ ​ 749 Thereafter ​ ​ 3,196 Total undiscounted lease payments ​ $ 10,890 ​

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Note 13 – Revenue Recognition. The Company utilizes the guidance found in ASU 2014- 09, Revenue from Contracts with Customers (ASC 606), when accounting for certain noninterest income. The core principle of this guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Sufficient information should be provided to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. The Company’s revenue streams that are within the scope of and accounted for under Topic 606 include service charges on deposit accounts, debit card interchange fees, and fees levied for other services the Company provides its customers. The guidance does not apply to revenue associated with financial instruments such as loans and investments, and other noninterest income such as loan servicing fees and earnings on bank-owned life insurance, which are accounted for on an accrual basis under other provisions of GAAP. In total, approximately All of the company’s revenue from contracts within the scope of ASC 606 is recognized as noninterest income, except for gains on the sale of OREO which is classified as non-interest expense. sources of noninterest income for the three- and six-month periods ended June 30, 2020 and 2019. Items outside the scope of ASC 606 are noted as such (dollars in thousands, unaudited). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the three months ended June 30, ​ For the six months ended June 30, ​ 2020 2019 2020 2019 Non-interest income ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Service charges on deposits ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Returned item and overdraft fees $ 962 $ 1,657 $ 2,626 $ 3,223 Other service charges on deposits ​ ​ 1,656 ​ ​ 1,494 ​ ​ 3,176 ​ ​ 2,871 Debit card interchange income ​ ​ 1,723 ​ ​ 1,687 ​ ​ 3,355 ​ ​ 3,200 Loss on limited partnerships (1) ​ ​ (158) ​ ​ (450) ​ ​ (315) ​ ​ (900) Dividends on equity investments (1) ​ ​ 139 ​ ​ 175 ​ ​ 333 ​ ​ 406 Unrealized gains recognized on equity investments (1) ​ ​ — ​ ​ 232 ​ ​ 447 ​ ​ 232 Net gains on sale of securities (1) ​ ​ 390 ​ ​ 22 ​ ​ 390 ​ ​ 28 Other (1) ​ ​ 2,188 ​ ​ 1,038 ​ ​ 2,995 ​ ​ 2,702 Total non-interest income ​ $ 6,900 ​ $ 5,855 ​ $ 13,007 ​ $ 11,762 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-interest expense ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Salaries and employee benefits (1) ​ $ 9,266 ​ $ 8,994 ​ $ 19,438 ​ $ 18,237 Occupancy expense (1) ​ ​ 2,504 ​ ​ 2,450 ​ ​ 4,832 ​ ​ 4,811 Gain on sale of OREO ​ ​ — ​ ​ (21) ​ ​ 2 ​ ​ (37) Other (1) ​ ​ 6,263 ​ ​ 6,233 ​ ​ 11,579 ​ ​ 12,498 Total non-interest expense ​ $ 18,033 ​ $ 17,656 ​ $ 35,851 ​ $ 35,509 (1) Not within scope of ASC 606. Revenue streams are not related to contract with customers and are accounted for on an accrual basis under other provisions of GAAP. With regard to noninterest income associated with customer contracts, the Company has determined that transaction prices are fixed, and performance obligations are satisfied as services are rendered, thus there is little or no judgment involved in the timing of revenue recognition under contracts that are within the scope of ASC 606.

Financial Instruments with Of_2

Financial Instruments with Off-Balance-Sheet Risk (Tables)	6 Months Ended
	Jun. 30, 2020
Financial Instruments with Off Balance Sheet Risk [Abstract]
Schedule of Financial Instruments	​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 December 31, 2019 Commitments to extend credit ​ $ 449,045 ​ $ 492,040 Standby letters of credit ​ $ 9,435 ​ $ 8,619

Fair Value Disclosures and Re_2

Fair Value Disclosures and Reporting, the Fair Value Option and Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Schedule of carrying amount and estimated fair values of financial instruments	Estimated fair values for the Company’s financial instruments are as follows, as of the dates noted: Fair Value of Financial Instruments (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ ​ ​ ​ Fair Value Measurements ​ Carrying Quoted Prices in Significant Significant Total Financial assets: ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 156,611 ​ $ 156,611 ​ $ — ​ $ — ​ $ 156,611 Investment securities available for sale ​ ​ 599,333 ​ ​ — ​ ​ 599,333 ​ ​ — ​ ​ 599,333 Loans and leases, net held for investment ​ ​ 2,195,837 ​ ​ — ​ ​ — ​ ​ 2,240,456 ​ ​ 2,240,456 Collateral dependent impaired loans ​ ​ 83 ​ ​ — ​ ​ 83 ​ ​ — ​ ​ 83 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deposits ​ ​ 2,506,754 ​ ​ 949,662 ​ ​ 1,557,228 ​ ​ — ​ ​ 2,506,890 Repurchase agreements ​ ​ 41,449 ​ ​ — ​ ​ 41,449 ​ ​ — ​ ​ 41,449 Short term borrowings ​ ​ 163,000 ​ ​ — ​ ​ 162,981 ​ ​ — ​ ​ 162,981 Subordinated debentures ​ ​ 35,035 ​ ​ — ​ ​ 24,507 ​ ​ — ​ ​ 24,507 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ ​ ​ Fair Value Measurements ​ Carrying Quoted Prices in Significant Significant Total Financial assets: ​ ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 80,077 ​ $ 80,076 ​ $ — ​ $ — ​ $ 80,076 Investment securities available for sale ​ ​ 600,799 ​ ​ — ​ ​ 600,799 ​ ​ — ​ ​ 600,799 Loans and leases, net held for investment ​ ​ 1,753,846 ​ ​ — ​ ​ — ​ ​ 1,761,461 ​ ​ 1,761,461 Collateral dependent impaired loans ​ ​ 1,692 ​ ​ — ​ ​ 1,692 ​ ​ — ​ ​ 1,692 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deposits ​ ​ 2,168,374 ​ ​ 690,950 ​ ​ 1,477,497 ​ ​ — ​ ​ 2,168,447 Repurchase agreements ​ ​ 25,711 ​ ​ — ​ ​ 25,711 ​ ​ — ​ ​ 25,711 Short term borrowings ​ ​ 20,000 ​ ​ — ​ ​ 2,000 ​ ​ — ​ ​ 2,000 Subordinated debentures ​ ​ 34,945 ​ ​ — ​ ​ 30,564 ​ ​ — ​ ​ 30,564
Schedule of assets reported at fair value on a recurring basis	Assets reported at fair value on a recurring basis are summarized below: Fair Value Measurements – Recurring (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at June 30, 2020, using ​ ​ ​ ​ Quoted Prices in Significant Significant Total Realized Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ — ​ $ 1,850 ​ $ — ​ $ 1,850 ​ $ — Mortgage-backed securities ​ ​ — ​ ​ 375,485 ​ ​ — ​ ​ 375,485 ​ ​ — State and political subdivisions ​ ​ — ​ ​ 221,998 ​ ​ — ​ ​ 221,998 ​ ​ — Total available-for-sale securities ​ $ — ​ $ 599,333 ​ $ — ​ $ 599,333 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019, using ​ ​ ​ ​ Quoted Prices in Significant Significant Total Realized Securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. government agencies ​ $ — ​ $ 12,145 ​ $ — ​ $ 12,145 ​ $ — Mortgage-backed securities ​ ​ — ​ ​ 400,389 ​ ​ — ​ ​ 400,389 ​ ​ — State and political subdivisions ​ ​ — ​ ​ 188,265 ​ ​ — ​ ​ 188,265 ​ ​ — Total available-for-sale securities ​ $ — ​ $ 600,799 ​ $ — ​ $ 600,799 ​ $ —
Schedule of assets reported at fair value on a nonrecurring basis	Assets reported at fair value on a nonrecurring basis are summarized below: Fair Value Measurements – Nonrecurring (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at June 30, 2020, using ​ Quoted Prices in Significant Significant Total Impaired loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ 83 ​ ​ — ​ ​ 83 Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate ​ ​ — ​ ​ 83 ​ ​ — ​ ​ 83 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total impaired loans ​ $ — ​ $ 83 ​ $ — ​ $ 83 Foreclosed assets ​ $ — ​ $ 2,893 ​ $ — ​ $ 2,893 Total assets measured on a nonrecurring basis ​ $ — ​ $ 2,976 ​ $ — ​ $ 2,976 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements at December 31, 2019, using ​ Quoted Prices in Significant Significant Total Impaired loans ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ 88 ​ ​ — ​ ​ 88 Commercial real estate - non-owner occupied ​ ​ — ​ ​ 1,605 ​ ​ — ​ ​ 1,605 Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate ​ ​ — ​ ​ 1,693 ​ ​ — ​ ​ 1,693 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total impaired loans ​ $ — ​ $ 1,693 ​ $ — ​ $ 1,693 Foreclosed assets ​ $ — ​ $ 800 ​ $ — ​ $ 800 Total assets measured on a nonrecurring basis ​ $ — ​ $ 2,493 ​ $ — ​ $ 2,493

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jun. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Amortized Cost and Estimated Fair Value of Available-For-Sale Investment Securities	The amortized cost and estimated fair value of available-for-sale investment securities are as follows: Amortized Cost And Estimated Fair Value (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ Amortized Gross Gross Estimated Fair U.S. government agencies ​ $ 1,775 ​ $ 75 ​ $ — ​ $ 1,850 Mortgage-backed securities ​ ​ 364,828 ​ ​ 10,668 ​ ​ (11) ​ ​ 375,485 State and political subdivisions ​ ​ 209,760 ​ ​ 12,239 ​ ​ (1) ​ ​ 221,998 Total securities ​ $ 576,363 ​ $ 22,982 ​ $ (12) ​ $ 599,333 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ Amortized Gross Gross Estimated Fair U.S. government agencies ​ $ 12,125 ​ $ 124 ​ $ (104) ​ $ 12,145 Mortgage-backed securities ​ ​ 398,353 ​ ​ 3,354 ​ ​ (1,318) ​ ​ 400,389 State and political subdivisions ​ ​ 181,900 ​ ​ 6,478 ​ ​ (113) ​ ​ 188,265 Total securities ​ $ 592,378 ​ $ 9,956 ​ $ (1,535) ​ $ 600,799
Realized Gain (Loss) on Investments	The table below summarizes the Company’s gross realized gains and losses as well as gross proceeds from the sales of securities, for the periods indicated: Investment Portfolio - Realized Gains/(Losses) (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, ​ ​ Six months ended June 30, ​ 2020 2019 ​ 2020 ​ 2019 Proceeds from sales, calls and maturities of securities available for sale ​ $ 24,063 ​ $ 9,985 ​ $ 26,493 ​ $ 26,639 Gross gains on sales, calls and maturities of securities available for sale ​ ​ 433 ​ ​ 33 ​ ​ 433 ​ ​ 127 Gross losses on sales, calls and maturities of securities available for sale ​ ​ (43) ​ ​ (11) ​ ​ (43) ​ ​ (99) Net gains on sale of securities available for sale ​ $ 390 ​ $ $22 ​ $ 390 ​ $ 28
Information Pertaining to Investment Securities Aggregated by Investment Category and Length of Time that Individual Securities in a Continuous Loss Position	Investment Portfolio - Unrealized Losses (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ ​ Less than twelve months ​ Twelve months or more ​ Gross Fair Value Gross Fair Value U.S. government agencies ​ $ — ​ $ — ​ $ — ​ $ — Mortgage-backed securities ​ ​ (3) ​ ​ 4,692 ​ ​ (8) ​ ​ 1,733 State and political subdivisions ​ ​ (1) ​ ​ 1,052 ​ ​ — ​ ​ — Total ​ $ (4) ​ $ 5,744 ​ $ (8) ​ $ 1,733 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ Less than twelve months ​ Twelve months or more ​ Gross Fair Value Gross Fair Value U.S. government agencies ​ $ (32) ​ $ 3,240 ​ $ (72) ​ $ 2,689 Mortgage-backed securities ​ ​ (494) ​ ​ 100,518 ​ ​ (824) ​ ​ 78,538 State and political subdivisions ​ ​ (113) ​ ​ 19,762 ​ ​ — ​ ​ — Total ​ $ (639) ​ $ 123,520 ​ $ (896) ​ $ 81,227
Investments Classified by Contractual Maturity Date	Estimated Fair Value of Contractual Maturities (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ Amortized Cost Fair Value Maturing within one year ​ $ 4,362 ​ $ 4,388 Maturing after one year through five years ​ ​ 7,834 ​ ​ 8,104 Maturing after five years through ten years ​ ​ 29,485 ​ ​ 30,823 Maturing after ten years ​ ​ 169,854 ​ ​ 180,533 Securities not due at a single maturity date: ​ ​ ​ ​ ​ ​ Mortgage-backed securities ​ ​ 181,945 ​ ​ 186,880 Collateralized mortgage obligations ​ ​ 182,883 ​ ​ 188,605 ​ ​ $ 576,363 ​ $ 599,333 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ Amortized Cost Fair Value Maturing within one year ​ $ 7,155 ​ $ 7,244 Maturing after one year through five years ​ ​ 17,008 ​ ​ 17,171 Maturing after five years through ten years ​ ​ 33,805 ​ ​ 34,881 Maturing after ten years ​ ​ 136,057 ​ ​ 141,114 Securities not due at a single maturity date: ​ ​ ​ ​ ​ ​ Mortgage-backed securities ​ ​ 189,554 ​ ​ 190,488 Collateralized mortgage obligations ​ ​ 208,799 ​ ​ 209,901 ​ ​ $ 592,378 ​ $ 600,799
Summary of Amortized Cost and Fair Values of General Obligation and Revenue Bonds	The following table summarizes the amortized cost and fair values of general obligation and revenue bonds in the Company’s investment securities portfolio at the indicated dates, identifying the state in which the issuing municipality or agency operates for our largest geographic concentrations: Revenue and General Obligation Bonds by Location (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ December 31, 2019 ​ ​ Amortized ​ Fair Market ​ Amortized ​ Fair Market General obligation bonds Cost Value Cost Value State of issuance ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Texas ​ $ 76,494 ​ $ 81,128 ​ $ 59,439 ​ $ 61,519 California ​ ​ 27,447 ​ ​ 29,067 ​ ​ 23,882 ​ ​ 25,030 Washington ​ ​ 23,330 ​ ​ 25,023 ​ ​ 23,392 ​ ​ 24,313 Other (21 & 24 states, respectively) ​ ​ 53,652 ​ ​ 56,532 ​ ​ 49,326 ​ ​ 50,725 Total general obligation bonds ​ ​ 180,923 ​ ​ 191,750 ​ ​ 156,039 ​ ​ 161,587 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenue bonds ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ State of issuance ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Texas ​ ​ 7,053 ​ ​ 7,452 ​ ​ 6,035 ​ ​ 6,298 Washington ​ ​ 2,256 ​ ​ 2,377 ​ ​ 1,737 ​ ​ 1,856 California ​ ​ 364 ​ ​ 382 ​ ​ 365 ​ ​ 380 Other (15 & 13 states, respectively) ​ ​ 19,164 ​ ​ 20,037 ​ ​ 17,724 ​ ​ 18,144 Total revenue bonds ​ ​ 28,837 ​ ​ 30,248 ​ ​ 25,861 ​ ​ 26,678 Total obligations of states and political subdivisions ​ $ 209,760 ​ $ 221,998 ​ $ 181,900 ​ $ 188,265 ​ The revenue bonds in the Company’s investment securities portfolios were issued by government municipalities and agencies to fund public services such as utilities (water, sewer, and power), educational facilities, and general public and economic improvements. The primary sources of revenue for these bonds are delineated in the table below, which shows the amortized cost and fair market values for the largest revenue concentrations as of the indicated dates. Revenue Bonds by Type (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ December 31, 2019 ​ ​ Amortized ​ Fair Market ​ Amortized ​ Fair Market Revenue bonds Cost Value Cost Value Revenue source: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Water ​ $ 10,363 ​ $ 10,949 ​ $ 7,515 ​ $ 7,775 Sewer ​ ​ 5,219 ​ ​ 5,408 ​ ​ 4,760 ​ ​ 4,811 Sales tax ​ ​ 3,572 ​ ​ 3,743 ​ ​ 1,949 ​ ​ 1,995 Lease ​ ​ 2,773 ​ ​ 2,864 ​ ​ 3,596 ​ ​ 3,678 Charter school aid ​ ​ 1,565 ​ ​ 1,689 ​ ​ 1,232 ​ ​ 1,290 Other (8 and 8 sources, respectively) ​ ​ 5,345 ​ ​ 5,595 ​ ​ 6,809 ​ ​ 7,129 Total revenue bonds ​ $ 28,837 ​ $ 30,248 ​ $ 25,861 ​ $ 26,678

Credit Quality and Nonperform_2

Credit Quality and Nonperforming Assets (Tables)	6 Months Ended
	Jun. 30, 2020
Credit Quality and Nonperforming Assets [Abstract]
Credit Quality Classifications for Loan Balances	Credit quality classifications for the Company’s loan balances were as follows, as of the dates indicated: Credit Quality Classifications (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ Pass Special Substandard Impaired Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ 89,225 ​ $ — ​ $ — ​ $ — ​ $ 89,225 Other construction/land ​ ​ 87,747 ​ ​ 2,227 ​ ​ — ​ ​ 571 ​ ​ 90,545 1-4 family - closed end ​ ​ 172,085 ​ ​ 1,635 ​ ​ 146 ​ ​ 4,205 ​ ​ 178,071 Equity lines ​ ​ 38,147 ​ ​ 1,955 ​ ​ 60 ​ ​ 4,156 ​ ​ 44,318 Multi-family residential ​ ​ 55,577 ​ ​ — ​ ​ — ​ ​ 344 ​ ​ 55,921 Commercial real estate - owner occupied ​ ​ 304,684 ​ ​ 3,444 ​ ​ 3,068 ​ ​ 2,667 ​ ​ 313,863 Commercial real estate - non-owner occupied ​ ​ 689,589 ​ ​ 511 ​ ​ 565 ​ ​ 627 ​ ​ 691,292 Farmland ​ ​ 132,584 ​ ​ 1,040 ​ ​ 128 ​ ​ 702 ​ ​ 134,454 Total real estate ​ ​ 1,569,638 ​ ​ 10,812 ​ ​ 3,967 ​ ​ 13,272 ​ ​ 1,597,689 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ ​ 48,356 ​ ​ 159 ​ ​ — ​ ​ 2 ​ ​ 48,516 Commercial and industrial ​ ​ 208,434 ​ ​ 11,213 ​ ​ 471 ​ ​ 1,383 ​ ​ 221,502 Mortgage warehouse ​ ​ 338,124 ​ ​ — ​ ​ — ​ ​ — ​ ​ 338,124 Consumer loans ​ ​ 5,834 ​ ​ 54 ​ ​ 34 ​ ​ 344 ​ ​ 6,266 Total gross loans and leases ​ $ 2,170,386 ​ $ 22,238 ​ $ 4,472 ​ $ 15,001 ​ $ 2,212,097 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ Pass Special Substandard Impaired Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ 105,979 ​ $ — ​ $ — ​ $ — ​ $ 105,979 Other construction/land ​ ​ 90,761 ​ ​ 98 ​ ​ — ​ ​ 554 ​ ​ 91,413 1-4 family - closed end ​ ​ 194,572 ​ ​ 2,425 ​ ​ 164 ​ ​ 3,020 ​ ​ 200,181 Equity lines ​ ​ 43,111 ​ ​ 1,995 ​ ​ 72 ​ ​ 4,421 ​ ​ 49,599 Multi-family residential ​ ​ 54,104 ​ ​ — ​ ​ — ​ ​ 353 ​ ​ 54,457 Commercial real estate - owner occupied ​ ​ 334,460 ​ ​ 4,005 ​ ​ 3,384 ​ ​ 2,034 ​ ​ 343,883 Commercial real estate - non-owner occupied ​ ​ 409,289 ​ ​ 1,164 ​ ​ 11 ​ ​ 2,105 ​ ​ 412,569 Farmland ​ ​ 142,594 ​ ​ 1,048 ​ ​ 132 ​ ​ 259 ​ ​ 144,033 Total real estate ​ ​ 1,374,870 ​ ​ 10,735 ​ ​ 3,763 ​ ​ 12,746 ​ ​ 1,402,114 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ ​ 47,814 ​ ​ 217 ​ ​ — ​ ​ 5 ​ ​ 48,036 Commercial and industrial ​ ​ 100,584 ​ ​ 13,415 ​ ​ 556 ​ ​ 977 ​ ​ 115,532 Mortgage warehouse ​ ​ 189,103 ​ ​ — ​ ​ — ​ ​ — ​ ​ 189,103 Consumer loans ​ ​ 7,245 ​ ​ 85 ​ ​ 25 ​ ​ 425 ​ ​ 7,780 Total gross loans and leases ​ $ 1,719,616 ​ $ 24,452 ​ $ 4,344 ​ $ 14,153 ​ $ 1,762,565
Aging of Loan Balances by Number of Days Past Due	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ 30-59 Days 60-89 Days 90 Days Or (1) Total Current Total Financing Non-Accrual (2) Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 89,225 ​ $ 89,225 ​ $ — Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 90,545 ​ ​ 90,545 ​ ​ 4 1-4 family - closed end ​ ​ 11 ​ ​ 684 ​ ​ 409 ​ ​ 1,104 ​ ​ 176,967 ​ ​ 178,071 ​ ​ 843 Equity lines ​ ​ 84 ​ ​ 1,120 ​ ​ 349 ​ ​ 1,553 ​ ​ 42,765 ​ ​ 44,318 ​ ​ 626 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 55,921 ​ ​ 55,921 ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ 989 ​ ​ 989 ​ ​ 312,874 ​ ​ 313,863 ​ ​ 1,909 Commercial real estate - non-owner occupied ​ ​ — ​ ​ — ​ ​ 628 ​ ​ 628 ​ ​ 690,664 ​ ​ 691,292 ​ ​ 627 Farmland ​ ​ 128 ​ ​ — ​ ​ 684 ​ ​ 812 ​ ​ 133,642 ​ ​ 134,454 ​ ​ 702 Total real estate ​ ​ 223 ​ ​ 1,804 ​ ​ 3,059 ​ ​ 5,086 ​ ​ 1,592,603 ​ ​ 1,597,689 ​ ​ 4,711 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 48,516 ​ ​ 48,516 ​ ​ — Commercial and industrial ​ ​ 337 ​ ​ 16 ​ ​ 772 ​ ​ 1,125 ​ ​ 220,377 ​ ​ 221,502 ​ ​ 1,086 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 338,124 ​ ​ 338,124 ​ ​ — Consumer ​ ​ 4 ​ ​ 32 ​ ​ — ​ ​ 36 ​ ​ 6,230 ​ ​ 6,266 ​ ​ 11 Total gross loans and leases ​ $ 564 ​ $ 1,852 ​ $ 3,831 ​ $ 6,247 ​ $ 2,205,850 ​ $ 2,212,097 ​ $ 5,808 (1) As of June 30, 2020 there were no loans over 90 days past due and still accruing. (2) Included in total financing receivables Loan Portfolio Aging (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ 30-59 Days 60-89 Days 90 Days Or (1) Total Current Total Financing Non-Accrual (2) Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family residential construction ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 105,979 ​ $ 105,979 ​ $ — Other construction/land ​ ​ 16 ​ ​ — ​ ​ — ​ ​ 16 ​ ​ 91,397 ​ ​ 91,413 ​ ​ 31 1-4 family - closed end ​ ​ 485 ​ ​ 380 ​ ​ 659 ​ ​ 1,524 ​ ​ 198,657 ​ ​ 200,181 ​ ​ 741 Equity lines ​ ​ 177 ​ ​ 10 ​ ​ 78 ​ ​ 265 ​ ​ 49,334 ​ ​ 49,599 ​ ​ 480 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 54,457 ​ ​ 54,457 ​ ​ — Commercial real estate - owner occupied ​ ​ 1,552 ​ ​ — ​ ​ 88 ​ ​ 1,640 ​ ​ 342,243 ​ ​ 343,883 ​ ​ 1,440 Commercial real estate - non-owner occupied ​ ​ 500 ​ ​ — ​ ​ 1,605 ​ ​ 2,105 ​ ​ 410,464 ​ ​ 412,569 ​ ​ 2,105 Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 144,033 ​ ​ 144,033 ​ ​ 258 Total real estate ​ ​ 2,730 ​ ​ 390 ​ ​ 2,430 ​ ​ 5,550 ​ ​ 1,396,564 ​ ​ 1,402,114 ​ ​ 5,055 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 48,036 ​ ​ 48,036 ​ ​ — Commercial and industrial ​ ​ 160 ​ ​ 215 ​ ​ — ​ ​ 375 ​ ​ 115,157 ​ ​ 115,532 ​ ​ 651 Mortgage warehouse lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 189,103 ​ ​ 189,103 ​ ​ — Consumer ​ ​ 55 ​ ​ 12 ​ ​ 2 ​ ​ 69 ​ ​ 7,711 ​ ​ 7,780 ​ ​ 31 Total gross loans and leases ​ $ 2,945 ​ $ 617 ​ $ 2,432 ​ $ 5,994 ​ $ 1,756,571 ​ $ 1,762,565 ​ $ 5,737 (1) As of December 31, 2019 there were no loans over 90 days past due and still accruing. (2) Included in total financing receivables ​
Troubled Debt Restructurings, by Type of Loan Modification	Troubled Debt Restructurings, by Type of Loan Modification (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2020 ​ Rate Modification Term Interest Only Modification Rate & Term Modification Term & Interest Modification ​ Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ — ​ $ 85 ​ $ — ​ $ — ​ $ — ​ $ 85 1-4 family - closed-end ​ ​ — ​ ​ 1,325 ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,325 Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ 178 ​ ​ — ​ ​ — ​ ​ — ​ ​ 178 Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ — ​ ​ 1,588 ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,588 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ 28 ​ ​ — ​ ​ — ​ ​ — ​ ​ 28 Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ $ — ​ $ 1,616 ​ $ — ​ $ — ​ $ — ​ $ 1,616 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2019 ​ Rate Modification Term Interest Only Rate & Term Modification Term & Interest Modification ​ Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ 244 ​ ​ — ​ ​ — ​ ​ — ​ ​ 244 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ — ​ ​ 244 ​ ​ — ​ ​ — ​ ​ — ​ ​ 244 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ — ​ ​ 22 ​ ​ — ​ ​ 52 ​ ​ — ​ ​ 74 Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ 50 ​ ​ — ​ ​ 50 Total ​ $ — ​ $ 266 ​ $ — ​ $ 102 ​ $ — ​ $ 368 ​ ​ Troubled Debt Restructurings, by Type of Loan Modification (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2020 ​ Rate Modification Term Interest Only Modification Rate & Term Modification Term & Interest Modification ​ Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ $ ​ Other construction/land ​ $ — ​ $ 85 ​ $ — ​ $ — ​ $ — ​ ​ 85 1-4 family - closed-end ​ ​ — ​ ​ 1,325 ​ ​ — ​ ​ — ​ ​ — ​ ​ 1,325 Equity lines ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ 178 ​ ​ — ​ ​ — ​ ​ 338 ​ ​ 516 Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ — ​ ​ 1,588 ​ ​ — ​ ​ — ​ ​ 338 ​ ​ 1,926 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ — Commercial and industrial ​ ​ — ​ ​ 28 ​ ​ — ​ ​ — ​ ​ — ​ ​ 28 Consumer loans ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ $ — ​ $ 1,616 ​ $ — ​ $ — ​ $ 338 ​ $ 1,954 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2019 ​ Rate Modification Term Interest Only Modification Rate & Term Modification Term & Interest Modification ​ Total Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — 1-4 family - closed-end ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ ​ — ​ ​ 344 ​ ​ — ​ ​ — ​ ​ — ​ ​ 344 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ — ​ ​ 344 ​ ​ — ​ ​ — ​ ​ — ​ ​ 344 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ — Commercial and industrial ​ ​ 94 ​ ​ 22 ​ ​ — ​ ​ 52 ​ ​ — ​ ​ 168 Consumer loans ​ ​ — ​ ​ 9 ​ ​ — ​ ​ 50 ​ ​ — ​ ​ 59 Total ​ $ 94 ​ $ 375 ​ $ — ​ $ 102 ​ $ — ​ $ 571 ​ Troubled Debt Restructurings (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2020 ​ ​ ​ ​ Pre- ​ Post- ​ ​ ​ ​ ​ Number of Outstanding Outstanding Reserve ⁽ ¹ ⁾ Reserve Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ 1 ​ $ 86 ​ $ 85 ​ $ 40 ​ $ 41 1-4 family - closed-end ​ 1 ​ ​ 1,325 ​ ​ 1,325 ​ ​ 10 ​ ​ 17 Equity lines ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ 1 ​ ​ 178 ​ ​ 178 ​ ​ 8 ​ ​ 9 Farmland ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ ​ ​ 1,589 ​ ​ 1,588 ​ ​ 58 ​ ​ 67 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ 1 ​ ​ 28 ​ ​ 28 ​ ​ 1 ​ ​ 2 Consumer loans ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ ​ $ 1,617 ​ $ 1,616 ​ $ 59 ​ $ 69 (1) This represents the change in the ALLL reserve for these credits measured as the difference between the specific post-modification impairment reserve and the pre-modification reserve calculated under our general allowance for loan loss methodology. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2019 ​ ​ ​ ​ Pre- ​ Post- ​ ​ ​ ​ ​ ​ ​ Number of Outstanding Outstanding Reserve ⁽ ¹ ⁾ Reserve Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ 0 ​ $ — ​ $ — ​ $ — ​ $ — 1-4 family - closed-end ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ 1 ​ ​ 244 ​ ​ 244 ​ ​ — ​ ​ 1 Multi-family residential ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ ​ ​ 244 ​ ​ 244 ​ ​ — ​ ​ 1 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ 2 ​ ​ 74 ​ ​ 74 ​ ​ — ​ ​ 45 Consumer loans ​ 1 ​ ​ 50 ​ ​ 50 ​ ​ (45) ​ ​ 2 Total ​ ​ ​ $ 368 ​ $ 368 ​ $ $(45) ​ $ 48 (1) This represents the change in the ALLL reserve for these credits measured as the difference between the specific post-modification impairment reserve and the pre-modification reserve calculated under our general allowance for loan loss methodology. ​ Troubled Debt Restructurings (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2020 ​ ​ ​ ​ Pre- ​ Post- ​ ​ ​ ​ ​ ​ ​ Number of Outstanding Outstanding Reserve ⁽ ¹ ⁾ Reserve Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ 1 ​ $ 86 ​ $ 85 ​ $ 40 ​ $ 41 1-4 family - closed-end ​ 1 ​ ​ 1,325 ​ ​ 1,325 ​ ​ 10 ​ ​ 17 Equity lines ​ 0 ​ ​ ` ​ ​ — ​ ​ — ​ ​ — Multi-family residential ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ 2 ​ ​ 516 ​ ​ 516 ​ ​ 8 ​ ​ 9 Farmland ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ ​ ​ 1,927 ​ ​ 1,926 ​ ​ 58 ​ ​ 67 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ 1 ​ ​ 28 ​ ​ 28 ​ ​ 1 ​ ​ 2 Consumer loans ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ ​ ​ $ 1,955 ​ $ 1,954 ​ $ 59 ​ $ 69 (1) This represents the change in the ALLL reserve for these credits measured as the difference between the specific post-modification impairment reserve and the pre-modification reserve calculated under our general allowance for loan loss methodology. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2019 ​ ​ ​ ​ Pre- ​ Post- ​ ​ ​ ​ ​ ​ ​ Number of Outstanding Outstanding Reserve ⁽ ¹ ⁾ Reserve Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ 0 ​ $ — ​ $ — ​ $ — ​ $ — 1-4 family - closed-end ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Equity lines ​ 2 ​ ​ 344 ​ ​ 344 ​ ​ — ​ ​ 1 Multi-family residential ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate - owner occupied ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total real estate loans ​ ​ ​ ​ 344 ​ ​ 344 ​ ​ — ​ ​ 1 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Agricultural ​ 0 ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ 4 ​ ​ 168 ​ ​ 168 ​ ​ (20) ​ ​ 46 Consumer loans ​ 2 ​ ​ 59 ​ ​ 59 ​ ​ (47) ​ ​ 3 Total ​ ​ ​ $ 571 ​ $ 571 ​ $ $(67) ​ $ 50 (1) This represents the change in the ALLL reserve for these credits measured as the difference between the specific post-modification impairment reserve and the pre-modification reserve calculated under our general allowance for loan loss methodology. ​
Schedule of Debtor Troubled Debt Restructuring, Subsequent Periods	Purchased Credit Impaired Loans: (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ Unpaid Principal Balance Carrying Value Real estate secured ​ $ 83 ​ $ 83 Total purchased credit impaired loans ​ $ 83 ​ $ $83 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ Unpaid Principal Balance Carrying Value Real estate secured ​ $ 88 ​ $ — Total purchased credit impaired loans ​ $ — ​ $ —

Allowance for Loan and Lease _2

Allowance for Loan and Lease Losses (Tables)	6 Months Ended
	Jun. 30, 2020
Provision for Loan and Lease Losses [Abstract]
Impaired Financing Receivables	Impaired Loans (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 ​ Unpaid Principal (1) Recorded (2) Related Average Interest Income (3) With an allowance recorded ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ 690 ​ ​ 571 ​ ​ 173 ​ ​ 586 ​ ​ 21 1-4 family - closed-end ​ ​ 3,379 ​ ​ 3,379 ​ ​ 71 ​ ​ 3,406 ​ ​ 58 Equity lines ​ ​ 3,909 ​ ​ 3,856 ​ ​ 317 ​ ​ 3,971 ​ ​ 69 Multi-family residential ​ ​ 344 ​ ​ 344 ​ ​ 18 ​ ​ 347 ​ ​ 12 Commercial real estate- owner occupied ​ ​ 757 ​ ​ 757 ​ ​ 11 ​ ​ 763 ​ ​ 18 Commercial real estate- non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ 237 ​ ​ 237 ​ ​ 3 ​ ​ 237 ​ ​ — Total real estate ​ ​ 9,316 ​ ​ 9,144 ​ ​ 593 ​ ​ 9,310 ​ ​ 178 Agricultural ​ ​ 2 ​ ​ 2 ​ ​ — ​ ​ 4 ​ ​ — Commercial and industrial ​ ​ 1,282 ​ ​ 1,262 ​ ​ 671 ​ ​ 1,297 ​ ​ 9 Consumer loans ​ ​ 382 ​ ​ 344 ​ ​ 95 ​ ​ 361 ​ ​ 15 Subtotal ​ ​ 10,982 ​ ​ 10,752 ​ ​ 1,359 ​ ​ 10,972 ​ ​ 202 With no related allowance recorded ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 1 1-4 family - closed-end ​ ​ 826 ​ ​ 826 ​ ​ — ​ ​ 845 ​ ​ — Equity lines ​ ​ 300 ​ ​ 300 ​ ​ — ​ ​ 304 ​ ​ 2 Commercial real estate- owner occupied ​ ​ 2,029 ​ ​ 1,910 ​ ​ — ​ ​ 1,937 ​ ​ — Commercial real estate- non-owner occupied ​ ​ 627 ​ ​ 627 ​ ​ — ​ ​ 634 ​ ​ — Farmland ​ ​ 465 ​ ​ 465 ​ ​ — ​ ​ 467 ​ ​ — Total real estate ​ ​ 4,247 ​ ​ 4,128 ​ ​ — ​ ​ 4,187 ​ ​ 3 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ 142 ​ ​ 121 ​ ​ — ​ ​ 206 ​ ​ — Consumer loans ​ ​ 9 ​ ​ — ​ ​ — ​ ​ 1 ​ ​ — Subtotal ​ ​ 4,398 ​ ​ 4,249 ​ ​ — ​ ​ 4,394 ​ ​ 3 Total ​ $ 15,380 ​ $ 15,001 ​ $ 1,359 ​ $ 15,366 ​ $ 205 (1) Contractual principal balance due from customer. (2) Principal balance on Company’s books, less any direct charge offs. (3) Interest income is recognized on performing balances on a regular accrual basis. Impaired Loans (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ Unpaid Principal (1) Recorded (2) Related Average Interest Income (3) With an allowance recorded ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other construction/land ​ $ 656 ​ $ 537 ​ $ 157 ​ $ 563 ​ $ 32 1-4 family - closed-end ​ ​ 2,298 ​ ​ 2,298 ​ ​ 58 ​ ​ 2,365 ​ ​ 146 Equity lines ​ ​ 4,173 ​ ​ 4,120 ​ ​ 252 ​ ​ 4,185 ​ ​ 200 Multi-family residential ​ ​ 353 ​ ​ 353 ​ ​ 17 ​ ​ 361 ​ ​ 23 Commercial real estate- owner occupied ​ ​ 593 ​ ​ 593 ​ ​ 6 ​ ​ 606 ​ ​ 38 Commercial real estate- non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Farmland ​ ​ 237 ​ ​ 237 ​ ​ 3 ​ ​ 256 ​ ​ — Total real estate ​ ​ 8,310 ​ ​ 8,138 ​ ​ 493 ​ ​ 8,336 ​ ​ 439 Agricultural ​ ​ 5 ​ ​ 5 ​ ​ 1 ​ ​ 6 ​ ​ — Commercial and industrial ​ ​ 915 ​ ​ 896 ​ ​ 219 ​ ​ 1,140 ​ ​ 29 Consumer loans ​ ​ 464 ​ ​ 425 ​ ​ 114 ​ ​ 469 ​ ​ 35 Subtotal ​ ​ 9,694 ​ ​ 9,464 ​ ​ 827 ​ ​ 9,951 ​ ​ 503 With no related allowance recorded ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Real estate: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1-4 family - closed-end ​ $ 755 ​ $ 722 ​ $ — ​ $ 726 ​ $ — Equity lines ​ ​ 326 ​ ​ 301 ​ ​ — ​ ​ 310 ​ ​ 5 Multi-family residential ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial real estate- owner occupied ​ ​ 1,560 ​ ​ 1,440 ​ ​ — ​ ​ 1,477 ​ ​ — Commercial real estate- non-owner occupied ​ ​ 3,295 ​ ​ 2,105 ​ ​ — ​ ​ 3,267 ​ ​ — Farmland ​ ​ 22 ​ ​ 22 ​ ​ — ​ ​ 25 ​ ​ — Total real estate ​ ​ 6,010 ​ ​ 4,607 ​ ​ — ​ ​ 6,382 ​ ​ 9 Agricultural ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Commercial and industrial ​ ​ 102 ​ ​ 81 ​ ​ — ​ ​ 162 ​ ​ — Consumer loans ​ ​ 9 ​ ​ — ​ ​ — ​ ​ 140 ​ ​ 15 Subtotal ​ ​ 6,121 ​ ​ 4,688 ​ ​ — ​ ​ 6,684 ​ ​ 24 Total ​ $ 15,815 ​ $ 14,152 ​ $ 827 ​ $ 16,635 ​ $ 527 (1) Contractual principal balance due from customer. (2) Principal balance on Company’s books, less any direct charge offs. (3) Interest income is recognized on performing balances on a regular accrual basis.
Allowance for Credit Losses on Financing Receivables	Allowance for Credit Losses and Recorded Investment in Financing Receivables (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2020 ​ ​ ​ Real Estate ​ ​ Agricultural ​ ​ Commercial and (1) ​ ​ Consumer ​ ​ Unallocated ​ ​ Total ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance ​ $ 7,315 ​ $ 235 ​ $ 2,754 ​ $ 1,137 ​ $ 12 ​ $ 11,453 Charge-offs ​ ​ — ​ ​ — ​ ​ (67) ​ ​ (286) ​ ​ — ​ ​ (353) Recoveries ​ ​ 3 ​ ​ — ​ ​ 20 ​ ​ 237 ​ ​ — ​ ​ 260 Provision ​ ​ 1,532 ​ ​ (3) ​ ​ 908 ​ ​ (239) ​ ​ 2 ​ ​ 2,200 Ending balance ​ $ 8,850 ​ $ 232 ​ $ 3,615 ​ $ 849 ​ $ 14 ​ $ 13,560 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2020 ​ Real Estate Agricultural Commercial and (1) Consumer Unallocated Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance $ 5,635 $ 193 $ 2,685 $ 1,278 $ 132 $ 9,923 Charge-offs ​ ​ — ​ ​ — ​ ​ (92) ​ ​ (903) ​ ​ — ​ ​ (995) Recoveries ​ ​ 74 ​ ​ — ​ ​ 48 ​ ​ 510 ​ ​ — ​ ​ 632 Provision ​ ​ 3,141 ​ ​ 39 ​ ​ 974 ​ ​ (36) ​ ​ (118) ​ ​ 4,000 Ending balance ​ $ 8,850 ​ $ 232 ​ $ 3,615 ​ $ 849 ​ $ 14 ​ $ 13,560 Reserves: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Specific ​ $ 593 ​ $ — ​ $ 671 ​ $ 95 ​ $ — ​ $ 1,359 General ​ ​ 8,257 ​ ​ 232 ​ ​ 2,944 ​ ​ 754 ​ ​ 14 ​ ​ 12,201 Ending balance ​ $ 8,850 ​ $ 232 ​ $ 3,615 ​ $ 849 ​ $ 14 ​ $ 13,560 Loans evaluated for impairment: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually ​ $ 13,272 ​ $ 2 ​ $ 1,383 ​ $ 344 ​ $ — ​ $ 15,001 Collectively ​ ​ 1,584,417 ​ ​ 48,514 ​ ​ 558,243 ​ ​ 5,922 ​ ​ — ​ ​ 2,197,096 Ending balance ​ $ 1,597,689 ​ $ 48,516 ​ $ 559,626 ​ $ 6,266 ​ $ — ​ $ 2,212,097 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, 2019 ​ Real Estate Agricultural Commercial and (1) Consumer Unallocated Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance ​ $ 5,831 ​ $ 256 ​ $ 2,394 ​ $ 1,239 ​ $ 30 ​ $ 9,750 Charge-offs ​ ​ (1,190) ​ ​ — ​ ​ (1,274) ​ ​ (2,409) ​ ​ — ​ ​ (4,873) Recoveries ​ ​ 647 ​ ​ — ​ ​ 690 ​ ​ 1,159 ​ ​ — ​ ​ 2,496 Provision ​ ​ 347 ​ ​ (63) ​ ​ 875 ​ ​ 1,289 ​ ​ 102 ​ ​ 2,550 Ending balance ​ $ 5,635 ​ $ 193 ​ $ 2,685 ​ $ 1,278 ​ $ 132 ​ $ 9,923 Reserves: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Specific ​ $ 493 ​ $ 1 ​ $ 219 ​ $ 114 ​ $ — ​ $ 827 General ​ ​ 5,142 ​ ​ 192 ​ ​ 2,466 ​ ​ 1,164 ​ ​ 132 ​ ​ 9,096 Ending balance ​ $ 5,635 ​ $ 193 ​ $ 2,685 ​ $ 1,278 ​ $ 132 ​ $ 9,923 Loans evaluated for impairment: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually ​ $ 12,746 ​ $ 5 ​ $ 977 ​ $ 425 ​ $ — ​ $ 14,153 Collectively ​ ​ 1,389,368 ​ ​ 48,031 ​ ​ 303,658 ​ ​ 7,355 ​ ​ — ​ ​ 1,748,412 Ending balance ​ $ 1,402,114 ​ $ 48,036 ​ $ 304,635 ​ $ 7,780 ​ $ — ​ $ 1,762,565 (1) Includes mortgage warehouse lines. ​ Allowance for Credit Losses and Recorded Investment in Financing Receivables (dollars in thousands, unaudited) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three months ended June 30, 2019 ​ Real Estate Agricultural Commercial and (1) Consumer Unallocated Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance ​ $ 6,094 ​ $ 219 ​ $ 1,914 ​ $ 1,129 ​ $ 82 ​ $ 9,438 Charge-offs ​ ​ — ​ ​ — ​ ​ (254) ​ ​ (562) ​ ​ — ​ ​ (816) Recoveries ​ ​ 153 ​ ​ — ​ ​ 431 ​ ​ 277 ​ ​ — ​ ​ 861 Provision ​ ​ (278) ​ ​ (18) ​ ​ 478 ​ ​ 288 ​ ​ (70) ​ ​ 400 Ending balance ​ $ 5,969 ​ $ 201 ​ $ 2,569 ​ $ 1,132 ​ $ 12 ​ $ 9,883 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Six months ended June 30, 2019 ​ Real Estate Agricultural Commercial and (1) Consumer Unallocated Total Allowance for credit losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance ​ $ 5,831 ​ $ 256 ​ $ 2,394 ​ $ 1,239 ​ $ 30 ​ $ 9,750 Charge-offs ​ ​ — ​ ​ — ​ ​ (832) ​ ​ (1,114) ​ ​ — ​ ​ (1,946) Recoveries ​ ​ 329 ​ ​ — ​ ​ 472 ​ ​ 578 ​ ​ — ​ ​ 1,379 Provision ​ ​ (191) ​ ​ (55) ​ ​ 535 ​ ​ 429 ​ ​ (18) ​ ​ 700 Ending balance ​ $ 5,969 ​ $ 201 ​ $ 2,569 ​ $ 1,132 ​ $ 12 ​ $ 9,883 Reserves: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Specific ​ $ 881 ​ $ 1 ​ $ 303 ​ $ 137 ​ $ — ​ $ 1,322 General ​ ​ 5,088 ​ ​ 200 ​ ​ 2,266 ​ ​ 995 ​ ​ 12 ​ ​ 8,561 Ending balance ​ $ 5,969 ​ $ 201 ​ $ 2,569 ​ $ 1,132 ​ $ 12 ​ $ 9,883 Loans evaluated for impairment: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually ​ $ 11,751 ​ $ 6 ​ $ 837 ​ $ 772 ​ $ — ​ $ 13,366 Collectively ​ ​ 1,426,425 ​ ​ 51,503 ​ ​ 279,091 ​ ​ 7,514 ​ ​ — ​ ​ 1,764,533 Ending balance ​ $ 1,438,176 ​ $ 51,509 ​ $ 279,928 ​ $ 8,286 ​ $ — ​ $ 1,777,899 (1) Includes mortgage warehouse lines.

Operating Leases (Tables)

Operating Leases (Tables)	6 Months Ended
	Jun. 30, 2020
Leases [Abstract]
Schedule of Maturities for Operating Lease Liabilities - ASC 842	​ ​ ​ ​ ​ ​ ​ ​ ​ June 30, 2020 2020 (1) $ 1,120 2021 ​ ​ 2,020 2022 ​ ​ 1,571 2023 ​ ​ 1,113 2024 ​ ​ 749 Thereafter ​ ​ 3,196 Total ​ ​ 9,769 Less: present value discount ​ ​ (1,744) Lease liability (2) ​ $ 8,025 (1) Contractual maturities for the six months remaining in 2020. (2) Lease liability is included in other liabilities. ​
Schedule of Future Minimum Rental Payments - ASC 840	​ ​ ​ ​ ​ ​ ​ December 31, 2019 2020 ​ $ 2,235 2021 ​ ​ 2,023 2022 ​ ​ 1,574 2023 ​ ​ 1,113 2024 ​ ​ 749 Thereafter ​ ​ 3,196 Total undiscounted lease payments ​ $ 10,890

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Schedule of Sources of Non-interest Income	The following table presents the Company’s sources of noninterest income for the three- and six-month periods ended June 30, 2020 and 2019. Items outside the scope of ASC 606 are noted as such (dollars in thousands, unaudited). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For the three months ended June 30, ​ For the six months ended June 30, ​ 2020 2019 2020 2019 Non-interest income ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Service charges on deposits ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Returned item and overdraft fees $ 962 $ 1,657 $ 2,626 $ 3,223 Other service charges on deposits ​ ​ 1,656 ​ ​ 1,494 ​ ​ 3,176 ​ ​ 2,871 Debit card interchange income ​ ​ 1,723 ​ ​ 1,687 ​ ​ 3,355 ​ ​ 3,200 Loss on limited partnerships (1) ​ ​ (158) ​ ​ (450) ​ ​ (315) ​ ​ (900) Dividends on equity investments (1) ​ ​ 139 ​ ​ 175 ​ ​ 333 ​ ​ 406 Unrealized gains recognized on equity investments (1) ​ ​ — ​ ​ 232 ​ ​ 447 ​ ​ 232 Net gains on sale of securities (1) ​ ​ 390 ​ ​ 22 ​ ​ 390 ​ ​ 28 Other (1) ​ ​ 2,188 ​ ​ 1,038 ​ ​ 2,995 ​ ​ 2,702 Total non-interest income ​ $ 6,900 ​ $ 5,855 ​ $ 13,007 ​ $ 11,762 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-interest expense ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Salaries and employee benefits (1) ​ $ 9,266 ​ $ 8,994 ​ $ 19,438 ​ $ 18,237 Occupancy expense (1) ​ ​ 2,504 ​ ​ 2,450 ​ ​ 4,832 ​ ​ 4,811 Gain on sale of OREO ​ ​ — ​ ​ (21) ​ ​ 2 ​ ​ (37) Other (1) ​ ​ 6,263 ​ ​ 6,233 ​ ​ 11,579 ​ ​ 12,498 Total non-interest expense ​ $ 18,033 ​ $ 17,656 ​ $ 35,851 ​ $ 35,509 (1) Not within scope of ASC 606. Revenue streams are not related to contract with customers and are accounted for on an accrual basis under other provisions of GAAP.

The Business of Sierra Bancorp

The Business of Sierra Bancorp - Branches (Details) - store	6 Months Ended
	Jun. 30, 2020	Jan. 31, 1978
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of branches		1
Number of acquired banks	4
Number of full service branch offices	40

The Business of Sierra Bancor_2

The Business of Sierra Bancorp - Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jan. 31, 1978
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Capital			$ 1,500
Assets	$ 3,110,044	$ 2,593,819
Cash, FDIC Insured Amount	$ 2,500,000

Current Accounting Developmen_2

Current Accounting Developments (Details)	Jun. 30, 2020
Accounting Standards Update 2016-13 [Member]
New Accounting Pronouncements or Change in Accounting Principle
Change in Accounting Principle, Accounting Standards Update, Adopted	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 1, 2020
Change in Accounting Principle, Accounting Standards Update, Early Adoption	false
Accounting Standards Update 2017-04 [Member]
New Accounting Pronouncements or Change in Accounting Principle
Change in Accounting Principle, Accounting Standards Update, Adopted	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 1, 2020
Change in Accounting Principle, Accounting Standards Update, Early Adoption	false
Accounting Standards Update 2018-13 [Member]
New Accounting Pronouncements or Change in Accounting Principle
Change in Accounting Principle, Accounting Standards Update, Adopted	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 1, 2020
Change in Accounting Principle, Accounting Standards Update, Early Adoption	false
Accounting Standards Update 2019-05 [Member]
New Accounting Pronouncements or Change in Accounting Principle
Change in Accounting Principle, Accounting Standards Update, Adopted	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 1, 2020
Change in Accounting Principle, Accounting Standards Update, Early Adoption	false

Share Based Compensation - Gene

Share Based Compensation - General Information (Details)	Jun. 30, 2020shares
2007 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options outstanding	257,789
2017 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	850,000
Number of shares remained available for grant	551,800

Share Based Compensation - Shar

Share Based Compensation - Share-based Compensation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Pre-tax charge	$ 0.1	$ 0.1	$ 0.2	$ 0.3

Earnings per Share (Details)

Earnings per Share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Weighted average shares outstanding	15,191,823	15,329,907	15,226,748	15,320,784
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Weighted Average Number Diluted Shares Outstanding Adjustment	45,832	128,413	61,261	132,428
Earnings Per Share, Diluted, Other Disclosures [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	367,884	258,202	336,123	228,824

Financial Instruments with Of_3

Financial Instruments with Off-Balance-Sheet Risk - Off-Balance-Sheet Risk (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Commitments to Extend Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure Offbalance Sheet Risks Amount Asset	$ 449,045	$ 492,040
Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value Disclosure Offbalance Sheet Risks Amount Asset	$ 9,435	$ 8,619

Financial Instruments with Of_4

Financial Instruments with Off-Balance-Sheet Risk - Additional Information (Details) $ in Millions	Jun. 30, 2020USD ($)
Financial Instruments with Off Balance Sheet Risk [Abstract]
Letters of Credit Outstanding, Amount	$ 105

Fair Value Disclosures and Re_3

Fair Value Disclosures and Reporting, the Fair Value Option and Fair Value Measurements - Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financial Assets:
Securities available-for-sale	$ 599,333	$ 600,799
Financial liabilities:
Repurchase agreements	41,449	25,711
Carrying Amount [Member]
Financial Assets:
Cash and cash equivalents	156,611	80,077
Securities available-for-sale	599,333	600,799
Loans and leases, net held for investment	2,195,837	1,753,846
Collateral dependent impaired loans	83	1,692
Financial liabilities:
Deposits	2,506,754	2,168,374
Repurchase agreements	41,449	25,711
Short term borrowings	163,000	20,000
Subordinated debentures	35,035	34,945
Fair Value [Member]
Financial Assets:
Cash and cash equivalents	156,611	80,076
Securities available-for-sale	599,333	600,799
Loans and leases, net held for investment	2,240,456	1,761,461
Collateral dependent impaired loans	83	1,692
Financial liabilities:
Deposits	2,506,890	2,168,447
Repurchase agreements	41,449	25,711
Short term borrowings	162,981	2,000
Subordinated debentures	24,507	30,564
Fair Value [Member] | Fair Value, Inputs, Level 1 [Member]
Financial Assets:
Cash and cash equivalents	156,611	80,076
Securities available-for-sale	0	0
Loans and leases, net held for investment	0	0
Collateral dependent impaired loans	0	0
Financial liabilities:
Deposits	949,662	690,950
Repurchase agreements	0	0
Short term borrowings	0	0
Subordinated debentures	0	0
Fair Value [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Assets:
Cash and cash equivalents	0	0
Securities available-for-sale	599,333	600,799
Loans and leases, net held for investment	0	0
Collateral dependent impaired loans	83	1,692
Financial liabilities:
Deposits	1,557,228	1,477,497
Repurchase agreements	41,449	25,711
Short term borrowings	162,981	2,000
Subordinated debentures	24,507	30,564
Fair Value [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Assets:
Cash and cash equivalents	0	0
Securities available-for-sale	0	0
Loans and leases, net held for investment	2,240,456	1,761,461
Collateral dependent impaired loans	0	0
Financial liabilities:
Deposits	0	0
Repurchase agreements	0	0
Short term borrowings	0	0
Subordinated debentures	$ 0	$ 0

Fair Value Disclosures and Re_4

Fair Value Disclosures and Reporting, the Fair Value Option and Fair Value Measurements - Fair Value Measurements - Recurring (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	$ 599,333	$ 600,799
U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	1,850	12,145
Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	375,485	400,389
States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	221,998	188,265
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	599,333	600,799
Other-than-temporary impairment losses on equity securities	0	0
Fair Value, Measurements, Recurring [Member] | U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	1,850	12,145
Other-than-temporary impairment losses on equity securities	0	0
Fair Value, Measurements, Recurring [Member] | Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	375,485	400,389
Other-than-temporary impairment losses on equity securities	0	0
Fair Value, Measurements, Recurring [Member] | States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	221,998	188,265
Other-than-temporary impairment losses on equity securities	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	599,333	600,799
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	1,850	12,145
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	375,485	400,389
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	221,998	188,265
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Mortgage-backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	$ 0	$ 0

Fair Value Disclosures and Re_5

Fair Value Disclosures and Reporting, the Fair Value Option and Fair Value Measurements - Fair Value Measurements - Nonrecurring (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	$ 15,001	$ 14,152
Foreclosed assets	2,893	800
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	83	1,693
Foreclosed assets	2,893	800
Total assets measured on a nonrecurring basis	2,976	2,493
Fair Value, Measurements, Nonrecurring [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	83	1,693
Fair Value, Measurements, Nonrecurring [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	83	88
Fair Value, Measurements, Nonrecurring [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	1,605
Fair Value, Measurements, Nonrecurring [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Consumer Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Foreclosed assets	0	0
Total assets measured on a nonrecurring basis	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Consumer Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	83	1,693
Foreclosed assets	2,893	800
Total assets measured on a nonrecurring basis	2,976	2,493
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	83	1,693
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	83	88
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	1,605
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Consumer Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Foreclosed assets	0	0
Total assets measured on a nonrecurring basis	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	0	0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Consumer Portfolio Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total impaired loans	$ 0	$ 0

Investments - Amortized Cost an

Investments - Amortized Cost and Estimated Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	$ 576,363	$ 592,378
Gross Unrealized Gains	22,982	9,956
Gross Unrealized Losses	(12)	(1,535)
Estimated Fair Value	599,333	600,799
U.S. Government Agencies [Member]
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	1,775	12,125
Gross Unrealized Gains	75	124
Gross Unrealized Losses		(104)
Estimated Fair Value	1,850	12,145
Mortgage-backed Securities [Member]
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	364,828	398,353
Gross Unrealized Gains	10,668	3,354
Gross Unrealized Losses	(11)	(1,318)
Estimated Fair Value	375,485	400,389
States and Political Subdivisions [Member]
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	209,760	181,900
Gross Unrealized Gains	12,239	6,478
Gross Unrealized Losses	(1)	(113)
Estimated Fair Value	$ 221,998	$ 188,265

Investments - Gross Unrealized

Investments - Gross Unrealized Losses - General Information (Details) - security	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract]
Available-for-sale, securities in unrealized loss positions, qualitative disclosure, number of positions, total	7	198

Investments - Gross Unrealize_2

Investments - Gross Unrealized Losses - Tabular Disclosure (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Gross Unrealized Losses, Less than twelve months	$ (4)	$ (639)
Fair Value, Less than twelve months	5,744	123,520
Gross Unrealized Losses, Twelve months or more	(8)	(896)
Fair Value, Twelve months or more	1,733	81,227
U.S. Government Agencies [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Gross Unrealized Losses, Less than twelve months		(32)
Fair Value, Less than twelve months		3,240
Gross Unrealized Losses, Twelve months or more		(72)
Fair Value, Twelve months or more		2,689
Mortgage-backed Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Gross Unrealized Losses, Less than twelve months	(3)	(494)
Fair Value, Less than twelve months	4,692	100,518
Gross Unrealized Losses, Twelve months or more	(8)	(824)
Fair Value, Twelve months or more	1,733	78,538
States and Political Subdivisions [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Gross Unrealized Losses, Less than twelve months	(1)	(113)
Fair Value, Less than twelve months	$ 1,052	$ 19,762

Investments - Realized Gains (L

Investments - Realized Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Proceeds from Sale and Maturity of Debt Securities, Available-for-sale [Abstract]
Proceeds from sales of securities available for sale	$ 24,063	$ 9,985	$ 26,493	$ 26,639
Debt Securities, Available-for-sale, Realized Gain (Loss) [Abstract]
Gross gains on sales, calls and maturities of securities available for sale	433	33	433	127
Gross losses on sales, calls and maturities of securities available for sale	(43)	(11)	(43)	(99)
Net gains on sale of securities available for sale	$ 390	$ 22	$ 390	$ 28

Investments - Estimated Fair Va

Investments - Estimated Fair Value of Contractual Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract]
Maturing within one year (remainder of year), Amortized Cost	$ 4,362
Maturing within one year, Amortized Cost	0	$ 7,155
Maturing after one year through five years, Amortized Cost	7,834	17,008
Maturing after five years through ten years, Amortized Cost	29,485	33,805
Maturing after ten years, Amortized Cost	169,854	136,057
Amortized Cost	576,363	592,378
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Maturing within one year (remainder of year), Fair Value	4,388
Maturing within one year, Fair Value	0	7,244
Maturing after one year through five years, Fair Value	8,104	17,171
Maturing after five years through ten years, Fair Value	30,823	34,881
Maturing after ten years, Fair Value	180,533	141,114
Fair Value, Total	599,333	600,799
States and Political Subdivisions [Member]
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract]
Amortized Cost	209,760	181,900
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Fair Value, Total	221,998	188,265
Mortgage-backed Securities [Member]
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract]
Investment securities not due at a single maturity date, Amortized Cost	181,945	189,554
Amortized Cost	364,828	398,353
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Investment securities not due at a single maturity date, Fair Value	186,880	190,488
Fair Value, Total	375,485	400,389
Collateralized Mortgage Obligations [Member]
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract]
Investment securities not due at a single maturity date, Amortized Cost	182,883	208,799
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Investment securities not due at a single maturity date, Fair Value	$ 188,605	$ 209,901

Investments - Revenue and Gener

Investments - Revenue and General Obligation Bonds (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale	$ 599,333	$ 600,799
States and Political Subdivisions [Member]
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale	221,998	188,265
General Obligation Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale	191,750	$ 161,587
General Obligation Bonds [Member] | Lindsay, California Unified School District [Member]
Debt Securities, Available-for-sale [Line Items]
Securities available-for-sale	$ 4,000

Investments - Revenue and Gen_2

Investments - Revenue and General Obligation Bonds by Location (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 576,363	$ 592,378
Fair Market Value	599,333	600,799
States and Political Subdivisions [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	209,760	181,900
Fair Market Value	221,998	188,265
General Obligation Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	180,923	156,039
Fair Market Value	191,750	161,587
General Obligation Bonds [Member] | Texas [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	76,494	59,439
Fair Market Value	81,128	61,519
General Obligation Bonds [Member] | California [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	27,447	23,882
Fair Market Value	29,067	25,030
General Obligation Bonds [Member] | Washington [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	23,330	23,392
Fair Market Value	25,023	24,313
General Obligation Bonds [Member] | Other [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	53,652	49,326
Fair Market Value	56,532	50,725
Revenue Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	28,837	25,861
Fair Market Value	30,248	26,678
Revenue Bonds [Member] | Texas [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,053	6,035
Fair Market Value	7,452	6,298
Revenue Bonds [Member] | California [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	364	365
Fair Market Value	382	380
Revenue Bonds [Member] | Washington [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,256	1,737
Fair Market Value	2,377	1,856
Revenue Bonds [Member] | Other [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	19,164	17,724
Fair Market Value	$ 20,037	$ 18,144

Investments - Revenue Bonds by

Investments - Revenue Bonds by Type (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 576,363	$ 592,378
Fair Market Value	599,333	600,799
States and Political Subdivisions [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	209,760	181,900
Fair Market Value	221,998	188,265
Revenue Bonds [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	28,837	25,861
Fair Market Value	30,248	26,678
Revenue Bonds [Member] | Water [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	10,363	7,515
Fair Market Value	10,949	7,775
Revenue Bonds [Member] | Sewer [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	5,219	4,760
Fair Market Value	5,408	4,811
Revenue Bonds [Member] | Sales Tax [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,572	1,949
Fair Market Value	3,743	1,995
Revenue Bonds [Member] | Lease [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,773	3,596
Fair Market Value	2,864	3,678
Revenue Bonds [Member] | Charter School Aid [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,565	1,232
Fair Market Value	1,689	1,290
Revenue Bonds [Member] | Other Revenue Source [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	5,345	6,809
Fair Market Value	$ 5,595	$ 7,129

Investments - Low-Income Housin

Investments - Low-Income Housing Tax Credit Fund Investments (Details) - Low Income Housing Tax Credit Fund Investments [Member] $ in Thousands	6 Months Ended
	Jun. 30, 2020USD ($)
Schedule of Equity Method Investments [Line Items]
Investment, book balance	$ 3,800
Investment, remaining commitments for additional capital contributions	200
Investment, tax credit	300
Investment, amortization expense	300
Investment, gain on sale of single fund property	$ 700

Credit Quality and Nonperform_3

Credit Quality and Nonperforming Assets - Credit Quality Classifications (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	$ 2,212,097	$ 1,762,565	$ 1,777,899
Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	2,170,386	1,719,616
Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	22,238	24,452
Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	4,472	4,344
Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	15,001	14,153
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	1,597,689	1,402,114	1,438,176
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	1,569,638	1,374,870
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	10,812	10,735
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	3,967	3,763
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	13,272	12,746
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	89,225	105,979
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	89,225	105,979
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	90,545	91,413
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	87,747	90,761
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	2,227	98
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	571	554
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	178,071	200,181
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	172,085	194,572
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	1,635	2,425
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	146	164
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	4,205	3,020
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	44,318	49,599
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	38,147	43,111
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	1,955	1,995
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	60	72
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	4,156	4,421
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	55,921	54,457
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	55,577	54,104
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	344	353
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	313,863	343,883
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	304,684	334,460
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	3,444	4,005
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	3,068	3,384
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	2,667	2,034
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	691,292	412,569
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	689,589	409,289
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	511	1,164
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	565	11
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	627	2,105
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	134,454	144,033
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	132,584	142,594
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	1,040	1,048
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	128	132
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	702	259
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	48,516	48,036	51,509
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	48,356	47,814
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	159	217
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	0	0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	2	5
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	559,626	304,635	279,928
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	221,502	115,532
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	208,434	100,584
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	11,213	13,415
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	471	556
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	1,383	977
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	338,124	189,103
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	338,124	189,103
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	0	0
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	0	0
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	0	0
Consumer Portfolio Segment [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	6,266	7,780	$ 8,286
Consumer Portfolio Segment [Member] | Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	5,834	7,245
Consumer Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	54	85
Consumer Portfolio Segment [Member] | Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	34	25
Consumer Portfolio Segment [Member] | Impaired [Member]
Financing Receivable Recorded Investment [Line Items]
Total gross loans and leases	$ 344	$ 425

Credit Quality and Nonperform_4

Credit Quality and Nonperforming Assets - Past Due and Nonperforming Assets (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020USD ($)item	Dec. 31, 2019USD ($)
Financing Receivable, Past Due [Line Items]
Foreclosed assets	$ 2,893	$ 800
Gross nonperforming loans	$ 5,808	$ 5,737
Payment Deferral [Member]
Financing Receivable, Past Due [Line Items]
Number of Customers | item	313
Financing Receivable, Modifications Recorded Investment, Non TDRs	$ 386,200
Interest Receivable	$ 4,900

Credit Quality and Nonperform_5

Credit Quality and Nonperforming Assets - Past Due and Nonaccrual Loans - Tabular Disclosure (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	$ 6,247	$ 5,994
Current	2,205,850	1,756,571
Total Financing Receivables	2,212,097	1,762,565	$ 1,777,899
Non-Accrual Loans	5,808	5,737
30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	564	2,945
60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	1,852	617
90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	3,831	2,432
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	5,086	5,550
Current	1,592,603	1,396,564
Total Financing Receivables	1,597,689	1,402,114	1,438,176
Non-Accrual Loans	4,711	5,055
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	223	2,730
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	1,804	390
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	3,059	2,430
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Current	89,225	105,979
Total Financing Receivables	89,225	105,979
Non-Accrual Loans	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family Residential Construction [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	16
Current	90,545	91,397
Total Financing Receivables	90,545	91,413
Non-Accrual Loans	4	31
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	16
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	1,104	1,524
Current	176,967	198,657
Total Financing Receivables	178,071	200,181
Non-Accrual Loans	843	741
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	11	485
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	684	380
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	409	659
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	1,553	265
Current	42,765	49,334
Total Financing Receivables	44,318	49,599
Non-Accrual Loans	626	480
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	84	177
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	1,120	10
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	349	78
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Current	55,921	54,457
Total Financing Receivables	55,921	54,457
Non-Accrual Loans	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	989	1,640
Current	312,874	342,243
Total Financing Receivables	313,863	343,883
Non-Accrual Loans	1,909	1,440
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	1,552
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	989	88
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	628	2,105
Current	690,664	410,464
Total Financing Receivables	691,292	412,569
Non-Accrual Loans	627	2,105
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	500
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	628	1,605
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	812	0
Current	133,642	144,033
Total Financing Receivables	134,454	144,033
Non-Accrual Loans	702	258
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	128	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	684	0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Current	48,516	48,036
Total Financing Receivables	48,516	48,036	51,509
Non-Accrual Loans	0	0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Financing Receivables	559,626	304,635	279,928
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	1,125	375
Current	220,377	115,157
Total Financing Receivables	221,502	115,532
Non-Accrual Loans	1,086	651
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	337	160
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	16	215
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Commercial and Industrial Loans and Leases [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	772	0
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Current	338,124	189,103
Total Financing Receivables	338,124	189,103
Non-Accrual Loans	0	0
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Mortgage Warehouse Lines [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	0	0
Consumer Portfolio Segment [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	36	69
Current	6,230	7,711
Total Financing Receivables	6,266	7,780	$ 8,286
Non-Accrual Loans	11	31
Consumer Portfolio Segment [Member] | 30-59 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	4	55
Consumer Portfolio Segment [Member] | 60-89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	32	12
Consumer Portfolio Segment [Member] | 90 Days Or More Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due	$ 0	$ 2

Credit Quality and Nonperform_6

Credit Quality and Nonperforming Assets - Past Due and Nonaccrual Loans - Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Credit Quality and Nonperforming Assets [Abstract]
Financing Receivable, 90 Days or More Past Due, Still Accruing	$ 0	$ 0

Credit Quality and Nonperform_7

Credit Quality and Nonperforming Assets - Troubled Debt Restructurings - General Information (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Credit Quality and Nonperforming Assets [Abstract]
Troubled debt restructurings, total amount	$ 10
Troubled debt restructurings on non-accrual status	$ 0.8

Credit Quality and Nonperform_8

Credit Quality and Nonperforming Assets - Troubled Debt Restructurings, by Type of Loan Modification (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	$ 1,616	$ 368	$ 1,954	$ 571
Troubled Debt Restructurings Rate Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0		94
Troubled Debt Restructurings Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	1,616	266	1,616	375
Troubled Debt Restructurings Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Troubled Debt Restructurings Rate And Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	102		102
Troubled Debt Restructurings Term And Interest Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period			338
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	1,588	244	1,926	344
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Troubled Debt Restructurings Rate Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Troubled Debt Restructurings Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	1,588	244	1,588	344
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Troubled Debt Restructurings Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Troubled Debt Restructurings Rate And Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Troubled Debt Restructurings Term And Interest Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period			338
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	85	0	85
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | Troubled Debt Restructurings Rate Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | Troubled Debt Restructurings Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	85	0	85
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | Troubled Debt Restructurings Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member] | Troubled Debt Restructurings Rate And Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	1,325	0	1,325
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Troubled Debt Restructurings Rate Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Troubled Debt Restructurings Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	1,325	0	1,325
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Troubled Debt Restructurings Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member] | Troubled Debt Restructurings Rate And Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	244		344
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Troubled Debt Restructurings Rate Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Troubled Debt Restructurings Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	244		344
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Troubled Debt Restructurings Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member] | Troubled Debt Restructurings Rate And Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | Troubled Debt Restructurings Rate Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | Troubled Debt Restructurings Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | Troubled Debt Restructurings Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member] | Troubled Debt Restructurings Rate And Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	178	0	516
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Troubled Debt Restructurings Rate Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Troubled Debt Restructurings Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	178	0	178
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Troubled Debt Restructurings Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Troubled Debt Restructurings Rate And Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member] | Troubled Debt Restructurings Term And Interest Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period			338
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Troubled Debt Restructurings Rate Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Troubled Debt Restructurings Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Troubled Debt Restructurings Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member] | Troubled Debt Restructurings Rate And Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | Troubled Debt Restructurings Rate Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | Troubled Debt Restructurings Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | Troubled Debt Restructurings Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member] | Troubled Debt Restructurings Rate And Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	28	74	28	168
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Troubled Debt Restructurings Rate Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0		94
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Troubled Debt Restructurings Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	28	22	$ 28	22
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Troubled Debt Restructurings Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Troubled Debt Restructurings Rate And Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	52		52
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	50		59
Consumer Portfolio Segment [Member] | Troubled Debt Restructurings Rate Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Consumer Portfolio Segment [Member] | Troubled Debt Restructurings Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0		9
Consumer Portfolio Segment [Member] | Troubled Debt Restructurings Interest Only Modification [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	0	0
Consumer Portfolio Segment [Member] | Troubled Debt Restructurings Rate And Term Modifications [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Post Modification Recorded Investment During Period	$ 0	$ 50		$ 50

Credit Quality and Nonperform_9

Credit Quality and Nonperforming Assets - Troubled Debt Restructurings - Tabular Disclosure (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020USD ($)item	Jun. 30, 2019USD ($)item	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)item
Financing Receivable, Modifications [Line Items]
Pre-Modification Outstanding Recorded Investment	$ 1,617,000	$ 368,000	$ 1,955,000	$ 571,000
Post-Modification Outstanding Recorded Investment	1,616,000	368,000	1,954,000	571,000
Reserve Difference	59,000	(45,000)	59,000	(67,000)
Reserve	69,000	48,000	69,000	50,000
Finance receivables modified as TDRs within the previous twelve months			0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable, Modifications [Line Items]
Pre-Modification Outstanding Recorded Investment	1,589,000	244,000	1,927,000	344,000
Post-Modification Outstanding Recorded Investment	1,588,000	244,000	1,926,000	344,000
Reserve Difference	58,000	0	58,000
Reserve	$ 67,000	$ 1,000	$ 67,000	$ 1,000
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1	0	1	0
Pre-Modification Outstanding Recorded Investment	$ 86,000	$ 0	$ 86,000
Post-Modification Outstanding Recorded Investment	85,000	0	85,000
Reserve Difference	40,000	0	40,000
Reserve	$ 41,000	$ 0	$ 41,000
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1	0	1	0
Pre-Modification Outstanding Recorded Investment	$ 1,325,000	$ 0	$ 1,325,000
Post-Modification Outstanding Recorded Investment	1,325,000	0	1,325,000
Reserve Difference	10,000	0	10,000
Reserve	$ 17,000	$ 0	$ 17,000
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0	1	0	2
Pre-Modification Outstanding Recorded Investment	$ 0	$ 244,000		$ 344,000
Post-Modification Outstanding Recorded Investment	0	244,000		344,000
Reserve Difference	0	0
Reserve	$ 0	$ 1,000		$ 1,000
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0	0	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	0	0
Reserve Difference	0	0
Reserve	$ 0	$ 0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1	0	2	0
Pre-Modification Outstanding Recorded Investment	$ 178,000	$ 0	$ 516,000
Post-Modification Outstanding Recorded Investment	178,000	0	516,000
Reserve Difference	8,000	0	8,000
Reserve	$ 9,000	$ 0	$ 9,000
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0	0	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	0	0
Reserve Difference	0	0
Reserve	$ 0	$ 0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0	0	0	0
Pre-Modification Outstanding Recorded Investment	$ 0	$ 0
Post-Modification Outstanding Recorded Investment	0	0
Reserve Difference	0	0
Reserve	$ 0	$ 0
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1	2	1	4
Pre-Modification Outstanding Recorded Investment	$ 28,000	$ 74,000	$ 28,000	$ 168,000
Post-Modification Outstanding Recorded Investment	28,000	74,000	28,000	168,000
Reserve Difference	1,000	0	1,000	(20,000)
Reserve	$ 2,000	$ 45,000	$ 2,000	$ 46,000
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	0	1	0	2
Pre-Modification Outstanding Recorded Investment	$ 0	$ 50,000		$ 59,000
Post-Modification Outstanding Recorded Investment	0	50,000		59,000
Reserve Difference	0	(45,000)		(47,000)
Reserve	$ 0	$ 2,000		$ 3,000

Credit Quality and Nonperfor_10

Credit Quality and Nonperforming Assets - Purchased Credit Impaired Loans - Tabular Disclosure (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance, Total	$ 15,380	$ 15,815
Impaired Financing Receivable, Carrying Value, Total	15,001	14,152
Nonperforming Financial Instruments [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance, Total	83
Impaired Financing Receivable, Carrying Value, Total	83
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Nonperforming Financial Instruments [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, Unpaid Principal Balance, Total	83	$ 88
Impaired Financing Receivable, Carrying Value, Total	$ 83

Credit Quality and Nonperfor_11

Credit Quality and Nonperforming Assets - Purchased Credit Impaired Loans - Additional Information (Details) - USD ($)	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Credit Quality and Nonperforming Assets [Abstract]
Purchase credit impaired loans, allowance for loan losses	$ 0	$ 100,000
Certain loans acquired in transfer accounted for as debt securities, accretable yield, accretion	$ 0

Allowance for Loan and Lease _3

Allowance for Loan and Lease Losses - General Information (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Provision for Loan and Lease Losses [Abstract]
Impaired Financing Receivable With Specific Reserves	$ 700	$ 600
Percentage Of Impaired Loans With Appraisal	59.00%
General	$ 12,200

Allowance for Loan and Lease _4

Allowance for Loan and Lease Losses - Individually Impaired Loans (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	$ 10,982	$ 9,694
With an Allowance Recorded Recorded Investment	10,752	9,464
With an Allowance Recorded Related Allowance	1,359	827
With an Allowance Recorded Average Recorded Investment	10,972	9,951
With an Allowance Recorded Interest Income Recognized	202	503
With no Related Allowance Recorded Unpaid Principal Balance	4,398	6,121
With no Related Allowance Recorded Recorded Investment	4,249	4,688
With no Related Allowance Recorded Average Recorded Investment	4,394	6,684
With no Related Allowance Recorded Interest Income Recognized	3	24
Individually impaired loans Unpaid Principal Balance	15,380	15,815
Total impaired loans	15,001	14,152
Individually impaired loans Related Allowance		827
Individually impaired loans Average Recorded Investment	15,366	16,635
Individually impaired loans Interest Income Recognized	205	527
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	9,316	8,310
With an Allowance Recorded Recorded Investment	9,144	8,138
With an Allowance Recorded Related Allowance	593	493
With an Allowance Recorded Average Recorded Investment	9,310	8,336
With an Allowance Recorded Interest Income Recognized	178	439
With no Related Allowance Recorded Unpaid Principal Balance	4,247	6,010
With no Related Allowance Recorded Recorded Investment	4,128	4,607
With no Related Allowance Recorded Average Recorded Investment	4,187	6,382
With no Related Allowance Recorded Interest Income Recognized	3	9
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Other construction/land [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	690	656
With an Allowance Recorded Recorded Investment	571	537
With an Allowance Recorded Related Allowance	173	157
With an Allowance Recorded Average Recorded Investment	586	563
With an Allowance Recorded Interest Income Recognized	21	32
With no Related Allowance Recorded Unpaid Principal Balance	0
With no Related Allowance Recorded Recorded Investment	0
With no Related Allowance Recorded Average Recorded Investment	0
With no Related Allowance Recorded Interest Income Recognized	1
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	3,379	2,298
With an Allowance Recorded Recorded Investment	3,379	2,298
With an Allowance Recorded Related Allowance	71	58
With an Allowance Recorded Average Recorded Investment	3,406	2,365
With an Allowance Recorded Interest Income Recognized	58	146
With no Related Allowance Recorded Unpaid Principal Balance	826	755
With no Related Allowance Recorded Recorded Investment	826	722
With no Related Allowance Recorded Average Recorded Investment	845	726
With no Related Allowance Recorded Interest Income Recognized	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Equity Lines [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	3,909	4,173
With an Allowance Recorded Recorded Investment	3,856	4,120
With an Allowance Recorded Related Allowance	317	252
With an Allowance Recorded Average Recorded Investment	3,971	4,185
With an Allowance Recorded Interest Income Recognized	69	200
With no Related Allowance Recorded Unpaid Principal Balance	300	326
With no Related Allowance Recorded Recorded Investment	300	301
With no Related Allowance Recorded Average Recorded Investment	304	310
With no Related Allowance Recorded Interest Income Recognized	2	5
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Multi-Family Residential [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	344	353
With an Allowance Recorded Recorded Investment	344	353
With an Allowance Recorded Related Allowance	18	17
With an Allowance Recorded Average Recorded Investment	347	361
With an Allowance Recorded Interest Income Recognized	12	23
With no Related Allowance Recorded Unpaid Principal Balance		0
With no Related Allowance Recorded Recorded Investment		0
With no Related Allowance Recorded Average Recorded Investment		0
With no Related Allowance Recorded Interest Income Recognized		0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	757	593
With an Allowance Recorded Recorded Investment	757	593
With an Allowance Recorded Related Allowance	11	6
With an Allowance Recorded Average Recorded Investment	763	606
With an Allowance Recorded Interest Income Recognized	18	38
With no Related Allowance Recorded Unpaid Principal Balance	2,029	1,560
With no Related Allowance Recorded Recorded Investment	1,910	1,440
With no Related Allowance Recorded Average Recorded Investment	1,937	1,477
With no Related Allowance Recorded Interest Income Recognized	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	0	0
With an Allowance Recorded Recorded Investment	0	0
With an Allowance Recorded Related Allowance	0	0
With an Allowance Recorded Average Recorded Investment	0	0
With an Allowance Recorded Interest Income Recognized	0	0
With no Related Allowance Recorded Unpaid Principal Balance	627	3,295
With no Related Allowance Recorded Recorded Investment	627	2,105
With no Related Allowance Recorded Average Recorded Investment	634	3,267
With no Related Allowance Recorded Interest Income Recognized	0	0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member] | Farmland [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	237	237
With an Allowance Recorded Recorded Investment	237	237
With an Allowance Recorded Related Allowance	3	3
With an Allowance Recorded Average Recorded Investment	237	256
With an Allowance Recorded Interest Income Recognized	0	0
With no Related Allowance Recorded Unpaid Principal Balance	465	22
With no Related Allowance Recorded Recorded Investment	465	22
With no Related Allowance Recorded Average Recorded Investment	467	25
With no Related Allowance Recorded Interest Income Recognized	0	0
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	2	5
With an Allowance Recorded Recorded Investment	2	5
With an Allowance Recorded Related Allowance	0	1
With an Allowance Recorded Average Recorded Investment	4	6
With an Allowance Recorded Interest Income Recognized	0	0
With no Related Allowance Recorded Unpaid Principal Balance	0	0
With no Related Allowance Recorded Recorded Investment	0	0
With no Related Allowance Recorded Average Recorded Investment	0	0
With no Related Allowance Recorded Interest Income Recognized	0	0
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	1,282	915
With an Allowance Recorded Recorded Investment	1,262	896
With an Allowance Recorded Related Allowance	671	219
With an Allowance Recorded Average Recorded Investment	1,297	1,140
With an Allowance Recorded Interest Income Recognized	9	29
With no Related Allowance Recorded Unpaid Principal Balance	142	102
With no Related Allowance Recorded Recorded Investment	121	81
With no Related Allowance Recorded Average Recorded Investment	206	162
With no Related Allowance Recorded Interest Income Recognized	0	0
Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	382	464
With an Allowance Recorded Recorded Investment	344	425
With an Allowance Recorded Related Allowance	95	114
With an Allowance Recorded Average Recorded Investment	361	469
With an Allowance Recorded Interest Income Recognized	15	35
With no Related Allowance Recorded Unpaid Principal Balance	9	9
With no Related Allowance Recorded Recorded Investment	0	0
With no Related Allowance Recorded Average Recorded Investment	1	140
With no Related Allowance Recorded Interest Income Recognized	$ 0	$ 15

Allowance for Loan and Lease _5

Allowance for Loan and Lease Losses - Allowance for Credit Losses - Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 11,453	$ 9,438	$ 9,923	$ 9,750	$ 9,750
Charge-offs	(353)	(816)	(995)	(1,946)	(4,873)
Recoveries	260	861	632	1,379	2,496
Provision	2,200	400	4,000	700	2,550
Ending balance	13,560	9,883	13,560	9,883	9,923
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	7,315	6,094	5,635	5,831	5,831
Charge-offs					(1,190)
Recoveries	3	153	74	329	647
Provision	1,532	(278)	3,141	(191)	347
Ending balance	8,850	5,969	8,850	5,969	5,635
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	235	219	193	256	256
Provision	(3)	(18)	39	(55)	(63)
Ending balance	232	201	232	201	193
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2,754	1,914	2,685	2,394	2,394
Charge-offs	(67)	(254)	(92)	(832)	(1,274)
Recoveries	20	431	48	472	690
Provision	908	478	974	535	875
Ending balance	3,615	2,569	3,615	2,569	2,685
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	1,137	1,129	1,278	1,239	1,239
Charge-offs	(286)	(562)	(903)	(1,114)	(2,409)
Recoveries	237	277	510	578	1,159
Provision	(239)	288	(36)	429	1,289
Ending balance	849	1,132	849	1,132	1,278
Unallocated [Member]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	12	82	132	30	30
Provision	2	(70)	(118)	(18)	102
Ending balance	$ 14	$ 12	$ 14	$ 12	$ 132

Allowance for Loan and Lease _6

Allowance for Loan and Lease Losses - Allowance for Credit Losses - Reserves (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable Allowance For Credit Losses [Line Items]
Specific	$ 1,359		$ 827	$ 1,322
General	12,201		9,096	8,561
Ending balance	13,560	$ 11,453	9,923	9,883	$ 9,438	$ 9,750
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Specific	593		493	881
General	8,257		5,142	5,088
Ending balance	8,850	7,315	5,635	5,969	6,094	5,831
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Specific			1	1
General	232		192	200
Ending balance	232	235	193	201	219	256
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Specific	671		219	303
General	2,944		2,466	2,266
Ending balance	3,615	2,754	2,685	2,569	1,914	2,394
Consumer Portfolio Segment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Specific	95		114	137
General	754		1,164	995
Ending balance	849	1,137	1,278	1,132	1,129	1,239
Unallocated [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
General	14		132	12
Ending balance	$ 14	$ 12	$ 132	$ 12	$ 82	$ 30

Allowance for Loan and Lease _7

Allowance for Loan and Lease Losses - Activity in Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually	$ 15,001	$ 14,153	$ 13,366
Collectively	2,197,096	1,748,412	1,764,533
Total Financing Receivables	2,212,097	1,762,565	1,777,899
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] | Real Estate Sector [Member]
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually	13,272	12,746	11,751
Collectively	1,584,417	1,389,368	1,426,425
Total Financing Receivables	1,597,689	1,402,114	1,438,176
Agricultural Portfolio Segment [Member] | Agricultural Sector [Member]
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually	2	5	6
Collectively	48,514	48,031	51,503
Total Financing Receivables	48,516	48,036	51,509
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually	1,383	977	837
Collectively	558,243	303,658	279,091
Total Financing Receivables	559,626	304,635	279,928
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually	344	425	772
Collectively	5,922	7,355	7,514
Total Financing Receivables	$ 6,266	$ 7,780	$ 8,286

Operating Leases - General Info

Operating Leases - General Information (Details)	Jun. 30, 2020storeOffice
Lessee Disclosure [Abstract]
Number of branch locations	21
Number of ATM locations	3
Number of administration offices | Office	1

Operating Leases - Lease Expens

Operating Leases - Lease Expense (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Income and Expenses, Lessee [Abstract]
Operating lease, expense	$ 1,100	$ 1,100

Operating Leases - Assets and L

Operating Leases - Assets and Liabilities (Details) $ in Thousands	Jun. 30, 2020USD ($)
Assets and Liabilities, Lessee [Abstract]
Right-of-use assets	$ 7,500
Operating lease liabilities	$ 8,025

Operating Leases - Lease Cost (

Operating Leases - Lease Cost (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Lessee Disclosure [Abstract]
Weighted average lease term (in years)	7 years
Weighted average discount rate (as a percent)	5.50%
Lease liabilities from new right-of-use assets obtained during the year	$ 0
Cash paid on operating leases	$ 0.9

Operating Leases - Schedule of

Operating Leases - Schedule of Future Undiscounted Lease Payments for Operating Leases (Details) $ in Thousands	Jun. 30, 2020USD ($)
Leases [Abstract]
2020	$ 1,120
2021	2,020
2022	1,571
2023	1,113
2024	749
Thereafter	3,196
Total undiscounted lease payments	$ 9,769

Operating Leases - Lease Liabil

Operating Leases - Lease Liability (Details) $ in Thousands	Jun. 30, 2020USD ($)
Operating Lease Liabilities, Gross Difference, Amount [Abstract]
Total undiscounted lease payments	$ 9,769
Less: imputed interest	(1,744)
Operating lease liabilities	$ 8,025

Operating Leases - Schedule o_2

Operating Leases - Schedule of Future Minimum Rental Payments (Details) $ in Thousands	Dec. 31, 2019USD ($)
Leases [Abstract]
2020	$ 2,235
2021	2,023
2022	1,574
2023	1,113
2024	749
Thereafter	3,196
Total	$ 10,890

Revenue Recognition - General I

Revenue Recognition - General Information (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Percentage of revenue outside of scope of ASC 606 (as a percent)	37.10%	29.60%

Revenue Recognition - Non-inter

Revenue Recognition - Non-interest Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Non-interest income
Loss on limited partnerships	$ (158)	$ (450)	$ (315)	$ (900)
Dividends on equity investments	139	175	333	406
Unrealized gains recognized on equity investments		232	447	232
Net gains on sale of securities	390	22	390	28
Other	2,188	1,038	2,995	2,702
Total non-interest income	6,900	5,855	13,007	11,762
Non-interest expense
Salaries and employee benefits	9,266	8,994	19,438	18,237
Occupancy expense	2,504	2,450	4,832	4,811
Loss (gain) on sale on foreclosed assets			2	(37)
Gain on sale of OREO		(21)	2	(37)
Other	6,263	6,233	11,579	12,498
Total non-interest expense	18,033	17,656	35,851	35,509
Deposit Account [Member]
Non-interest income
Revenue from Contract with Customer, Excluding Assessed Tax	2,618	3,151	5,802	6,094
Returned Item and Overdraft Fees [Member]
Non-interest income
Revenue from Contract with Customer, Excluding Assessed Tax	962	1,657	2,626	3,223
Other Service Charges on Deposits [Member]
Non-interest income
Revenue from Contract with Customer, Excluding Assessed Tax	1,656	1,494	3,176	2,871
Debit Card [Member]
Non-interest income
Revenue from Contract with Customer, Excluding Assessed Tax	$ 1,723	$ 1,687	$ 3,355	$ 3,200