SmartFinancial (SMBK) 10-Q 9 Nov 21 2021 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Nov. 05, 2021
Cover page [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-37661
Entity Registrant Name	SMARTFINANCIAL INC.
Entity Incorporation, State or Country Code	TN
Entity Tax Identification Number	62-1173944
Entity Address, Address Line One	5401 Kingston Pike, Suite 600
Entity Address, City or Town	Knoxville
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	37919
City Area Code	865
Local Phone Number	437-5700
Title of 12(b) Security	Common Stock, par value $1.00
Trading Symbol	SMBK
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		16,802,080
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001038773
Current Fiscal Year End Date	--12-31

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
ASSETS:
Cash and due from banks	$ 79,827	$ 50,460
Interest-bearing deposits with banks	969,929	364,846
Federal funds sold	41,404	66,413
Total cash and cash equivalents	1,091,160	481,719
Securities available-for-sale, at fair value	339,343	215,634
Other investments	14,972	14,794
Loans held for sale	3,418	11,721
Loans and leases	2,652,663	2,382,243
Less: Allowance for loan and leases losses	(19,295)	(18,346)
Loans and leases, net	2,633,368	2,363,897
Premises and equipment, net	85,346	72,682
Other real estate owned	2,415	4,619
Goodwill and other intangibles, net	104,930	86,471
Bank owned life insurance	79,145	31,215
Other assets	29,934	22,197
Total assets	4,384,031	3,304,949
Deposits:
Noninterest-bearing demand	977,180	685,957
Interest-bearing demand	847,007	649,129
Money market and savings	1,389,393	919,631
Time deposits	585,692	550,498
Total deposits	3,799,272	2,805,215
Borrowings	88,748	81,199
Subordinated debt	41,909	39,346
Other liabilities	29,382	22,021
Total liabilities	3,959,311	2,947,781
Stockholders' equity:
Preferred stock, $1 par value; 2,000,000 shares authorized; No shares issued and outstanding	0	0
Common stock, $1 par value; 40,000,000 shares authorized; 16,801,447 and 15,107,214 shares issued and outstanding, respectively	16,801	15,107
Additional paid-in capital	292,760	252,693
Retained earnings	112,600	87,185
Accumulated other comprehensive income	2,559	2,183
Total stockholders' equity	424,720	357,168
Total liabilities and stockholders' equity	$ 4,384,031	$ 3,304,949

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares issued (in shares)	16,801,447	15,107,214
Common stock, shares outstanding (in shares)	16,801,447	15,107,214

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest Income:
Loans and leases, including fees	$ 31,674	$ 28,621	$ 88,015	$ 83,718
Securities available-for-sale:
Taxable	832	546	2,472	1,813
Tax-exempt	331	364	894	1,064
Federal funds sold and other earning assets	474	327	1,074	1,206
Total interest income	33,311	29,858	92,455	87,801
Interest Expense:
Deposits	2,153	2,897	6,733	11,016
Borrowings	121	334	360	674
Subordinated debt	655	584	1,823	1,751
Total interest expense	2,929	3,815	8,916	13,441
Net interest income	30,382	26,043	83,539	74,360
Provision for loan and lease losses	1,149	2,634	1,211	8,683
Net interest income after provision for loan losses	29,233	23,409	82,328	65,677
Noninterest Income:
Service charges on deposit accounts	1,220	892	3,278	2,370
Gain (loss) on sale of securities	45	(9)	45	6
Mortgage banking	994	1,029	3,238	2,544
Investment services	448	359	1,546	1,159
Insurance commissions	745	560	2,768	1,302
Interchange and debit card transaction fees, net	1,078	868	2,839	1,652
Other	1,779	422	3,429	1,417
Total noninterest income	6,309	4,121	17,143	10,450
Noninterest Expense:
Salaries and employee benefits	13,594	11,032	36,666	31,395
Occupancy and equipment	2,536	2,186	7,170	6,093
FDIC insurance	525	534	1,266	894
Other real estate and loan related expenses	407	643	1,514	1,535
Advertising and marketing	235	253	654	653
Data processing and technology	1,753	1,131	4,642	3,293
Professional services	810	594	2,300	2,172
Amortization of intangibles	711	402	1,597	1,169
Merger related and restructuring expenses	464	290	939	3,863
Other	2,274	2,102	6,822	5,699
Total noninterest expenses	23,309	19,167	63,570	56,766
Income before income tax expense	12,233	8,363	35,901	19,361
Income tax expense	2,633	1,968	7,767	4,059
Net income	$ 9,600	$ 6,395	$ 28,134	$ 15,302
Earnings per common share:
Basic (in dollars per share)	$ 0.62	$ 0.42	$ 1.85	$ 1.03
Diluted (in dollars per share)	$ 0.61	$ 0.42	$ 1.84	$ 1.02
Weighted average common shares outstanding:
Basic (in shares)	15,557,528	15,160,579	15,192,919	14,903,757
Diluted (in shares)	15,691,126	15,210,611	15,312,755	14,965,455

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 9,600	$ 6,395	$ 28,134	$ 15,302
Other comprehensive income:
Unrealized holding gains (losses) on securities available-for-sale arising during the period	284	77	(971)	2,980
Tax effect	(74)	(142)	264	(779)
Reclassification adjustment for realized (gains) losses included in net income	(45)	(9)	(45)	6
Tax effect	12	2	12	(2)
Unrealized gains (losses) on securities available-for-sale arising during the period, net of tax	177	(72)	(740)	2,205
Unrealized gains (losses) on fair value municipal security hedges	59	538	1,510	(1,843)
Tax effect	(15)	(46)	(394)	482
Unrealized gains (losses) on fair value municipal security hedge instruments arising during the period, net of tax	44	492	1,116	(1,361)
Total other comprehensive income	221	420	376	844
Comprehensive income	$ 9,821	$ 6,815	$ 28,510	$ 16,146

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
BALANCE at Dec. 31, 2019	$ 14,008	$ 232,732	$ 65,839	$ 168	$ 312,747
BALANCE (in shares) at Dec. 31, 2019	14,008,233
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			15,302		15,302
Other comprehensive income				844	844
Exercise of stock options	$ 28	254			282
Exercise of stock options (in shares)	27,858
Restricted stock	$ 36	(36)
Restricted stock (in shares)	36,113
Common stock issued to shareholders	$ 1,293	23,254			24,547
Common stock issued to shareholders (in shares)	1,292,578
Stock compensation expense		365			365
Common stock dividends			(2,223)		(2,223)
Repurchases of common stock	$ (132)	(1,943)			(2,075)
Repurchases of common stock (in shares)	(131,555)
BALANCE at Sep. 30, 2020	$ 15,233	254,626	78,918	1,012	349,789
BALANCE (in shares) at Sep. 30, 2020	15,233,227
BALANCE at Jun. 30, 2020	$ 15,217	254,396	73,283	592	343,488
BALANCE (in shares) at Jun. 30, 2020	15,216,932
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			6,395		6,395
Other comprehensive income				420	420
Exercise of stock options	$ 12	92			104
Exercise of stock options (in shares)	12,500
Restricted stock	$ 4	(4)
Restricted stock (in shares)	3,795
Stock compensation expense		142			142
Common stock dividends			(760)		(760)
BALANCE at Sep. 30, 2020	$ 15,233	254,626	78,918	1,012	349,789
BALANCE (in shares) at Sep. 30, 2020	15,233,227
BALANCE at Dec. 31, 2020	$ 15,107	252,693	87,185	2,183	357,168
BALANCE (in shares) at Dec. 31, 2020	15,107,214
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			28,134		28,134
Other comprehensive income				376	376
Exercise of stock options	$ 19	175			194
Exercise of stock options (in shares)	19,165
Restricted stock	$ 43	(43)
Restricted stock (in shares)	43,143
Common stock issued to shareholders	$ 1,691	40,563			42,254
Common stock issued to shareholders (in shares)	1,691,535
Stock compensation expense		521			521
Common stock dividends			(2,719)		(2,719)
Repurchases of common stock	$ (59)	(1,149)			(1,208)
Repurchases of common stock (in shares)	(59,610)
BALANCE at Sep. 30, 2021	$ 16,801	292,760	112,600	2,559	424,720
BALANCE (in shares) at Sep. 30, 2021	16,801,447
BALANCE at Jun. 30, 2021	$ 15,110	252,039	103,906	2,338	373,393
BALANCE (in shares) at Jun. 30, 2021	15,109,736
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			9,600		9,600
Other comprehensive income				221	221
Restricted stock (in shares)	176
Common stock issued to shareholders	$ 1,691	40,563			42,254
Common stock issued to shareholders (in shares)	1,691,535
Stock compensation expense		158			158
Common stock dividends			(906)		(906)
BALANCE at Sep. 30, 2021	$ 16,801	$ 292,760	$ 112,600	$ 2,559	$ 424,720
BALANCE (in shares) at Sep. 30, 2021	16,801,447

CONSOLIDATED STATEMENT OF CHA_2

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Stockholders' Equity [Abstract]
Common stock dividend, per share	$ 0.06	$ 0.05	$ 0.18	$ 0.15

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income	$ 28,134	$ 15,302
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,739	4,437
Accretion of fair value purchase accounting adjustments, net	(4,086)	(3,689)
Provision for loan and lease losses	1,211	8,683
Stock compensation expense	521	365
Gain from redemption and sale of securities available-for-sale	(45)	(6)
Deferred income tax expense (benefit)	731	(37)
Increase in cash surrender value of bank owned life insurance	(1,240)	(526)
Net losses from sale and write downs of other real estate owned	176	142
Net gains from mortgage banking	(3,238)	(2,544)
Origination of loans held for sale	(97,360)	(99,223)
Proceeds from sales of loans held for sale	108,901	96,330
Net (gain) from sale of branch	(137)
Net change in:
Accrued interest receivable	2,074	(3,221)
Accrued interest payable	(125)	807
Other assets	(414)	1,850
Other liabilities	5,709	3,556
Net cash provided by operating activities	45,551	22,226
Cash flows from investing activities:
Proceeds from sales of securities available-for-sale	16,771	11,759
Proceeds from maturities and calls of securities available-for-sale	43,551	45,800
Proceeds from paydowns of securities available-for-sale	21,550	18,622
Proceeds from sales of other investments	436
Purchases of securities available-for-sale	(145,316)	(81,893)
Purchase of other investments	(80)	(1,223)
Purchases of bank owned life insurance	(40,000)
Proceeds from bank owned life insurance benefits	427
Net (increase) decrease in loans and leases	4,444	(316,075)
Purchase of premises and equipment	(603)	(4,450)
Proceeds from sale of other assets owned	2,171	875
Proceeds received from branch sale	83,745
Net cash (paid) received from business combination	15,364	46,132
Net cash provided by (used in) investing activities	2,460	(280,453)
Cash flow from financing activities:
Net increase in deposits	558,410	332,319
Net (increase) decrease in securities sold under agreements to repurchase	(351)	9
Proceeds from borrowings	7,500	338,340
Repayment borrowings	(396)	(50,581)
Cash dividends paid	(2,719)	(2,223)
Issuance of common stock	194	282
Repurchases of common stock	(1,208)	(2,075)
Net cash provided by financing activities	561,430	616,071
Net change in cash and cash equivalents	609,441	357,844
Cash and cash equivalents, beginning of period	481,719	183,971
Cash and cash equivalents, end of period	1,091,160	541,815
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	8,745	12,633
Cash paid during the period for income taxes	8,223	5,778
Noncash investing and financing activities:
Acquisition of real estate through foreclosure	580	971
Change in goodwill due to acquisitions and sale of a portfolio of loans	$ 15,849	$ 9,316

Presentation of Financial Infor

Presentation of Financial Information	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Presentation of Financial Information	Note 1. Presentation of Financial Information Nature of Business: SmartFinancial, Inc. (the "Company" or “SmartFinancial”) is a bank holding company whose principal activity is the ownership and management of its wholly owned subsidiary, SmartBank (the "Bank"). The Company provides a variety of financial services to individuals and corporate customers through its offices in East and Middle Tennessee, Alabama, and the Florida Panhandle. The Bank’s primary deposit products are noninterest-bearing and interest-bearing demand deposits, savings and money market deposits, and time deposits. Its primary lending products are commercial, residential, and consumer loans. Basis of Presentation and Accounting Estimates: The accounting and financial reporting policies of the Company and its wholly owned subsidiary conform to U.S. generally accepted accounting principles (“GAAP”) and reporting guidelines of banking regulatory authorities and regulators. The accompanying interim consolidated financial statements for the Company and its wholly owned subsidiary have not been audited. All material intercompany balances and transactions have been eliminated. In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying financial statements have been made. These adjustments are normal and recurring accruals considered necessary for a fair and accurate presentation. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan and lease losses, the valuation of foreclosed assets and deferred taxes, other than temporary impairments of securities, the fair value of financial instruments, goodwill, and the fair value of assets acquired, and liabilities assumed in acquisitions. The results for interim periods are not necessarily indicative of results for the full year or any other interim periods. The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in the Company’s annual report on Form 10-K for the year ended December 31, 2020. Recently Issued and Adopted Accounting Pronouncements: In December 2019, the FASB issued ASU No. 2019-12, “Simplifying the Accounting for Income Taxes.” Recently Issued Not Yet Effective Accounting Pronouncements: During interim periods, the Company follows the accounting policies set forth in its annual audited financial statements for the year ended December 31, 2020, as filed in its Annual Report on Form 10-K with the Securities and Exchange Commission ("SEC"). The following is a summary of recent authoritative pronouncements issued but not yet effective that could impact the accounting, reporting, and/or disclosure of financial information by the Company. In October 2019, the Financial Accounting Standards Board approved a delay for the implementation of ASU 2016-13, Financial Instruments - Credit Losses periods within those fiscal years. For calendar-year-end companies that are not SRCs, this will be January 1, 2020. The determination of whether an entity is an SRC will be based on an entity’s most recent assessment in accordance with SEC regulations and the Company meets the regulations as an SRC. For SRCs and other entities, the Board decided that CECL will be effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. For all entities, early adoption will continue to be permitted; that is, early adoption is allowed for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years (that is, effective January 1, 2019, for calendar-year-end companies). The Company does not plan to adopt this standard early and being that the Company is an SRC, adoption is required for fiscal years beginning after December 15, 2022. In March 2020, the FASB issued ASU 2020-04 , Reference Rate Reform (Topic 848): Operating, Accounting and Reporting Considerations related to COVID-19: The COVID-19 pandemic has negatively impacted the global economy. In response to this crisis, the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was passed by Congress and signed into law on March 27, 2020. The CARES Act provides an estimated $2.2 trillion to fight the COVID-19 pandemic and stimulate the economy by supporting individuals and businesses through loans, grants, tax changes, and other types of relief. Some of the provisions applicable to the Company include, but are not limited to: ● Accounting for Loan Modifications – Section 4013 of the CARES Act provides that a financial institution may elect to suspend (1) the requirements under GAAP for certain loan modifications that would otherwise be categorized as a TDR, and (2) any determination that such loan modifications would be considered a TDR, including the related impairment for accounting purposes. See Note 5 - Loans and Leases and Allowance for Loan and Lease Losses for more information. ● Paycheck Protection Program - The CARES Act established the Paycheck Protection Program (“PPP”), an expansion of the Small Business Administration’s (“SBA”) 7(a) loan program and the Economic Injury Disaster Loan Program (“EIDL”), administered directly by the SBA. On December 27, 2020, the Consolidated Appropriations Act, 2021 (“CAA”) was signed into law. The CAA provides several amendments to the PPP, including additional funding for first and second draws of PPP loans up to March 31, 2021. On March 30, 2021, the PPP Extension Act of 2021 was signed into law, which extends the program to May 31, 2021. The Company is a participant in the PPP. See Note 5 - Loans and Leases and Allowance for Loan and Lease Losses for more information. Also in response to the COVID-19 pandemic, the Board of Governors of the Federal Reserve System (“FRB”), the Federal Deposit Insurance Corporation (“FDIC”), the National Credit Union Administration (“NCUA”), the Office of the Comptroller of the Currency (“OCC”), and the Consumer Financial Protection Bureau (“CFPB”), in consultation with the state financial regulators (collectively, the “agencies”) issued a joint interagency statement (issued March 22, 2020; revised statement issued April 7, 2020). Some of the provisions applicable to the Company include, but are not limited to: ● Accounting for Loan Modifications - Loan modifications that do not meet the conditions of the CARES Act may still qualify as a modification that does not need to be accounted for as a TDR. The agencies confirmed with FASB staff that short-term modifications made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief are not TDRs. This includes short-term (e.g., six months) modifications such as payment deferrals, fee waivers, extensions of repayment terms, or insignificant delays in payment. See Note 5 - Loans and Leases and Allowance for Loan and Lease Losses for more information. ● Past Due Reporting - Regarding loans not otherwise reportable as past due, financial institutions are not expected to designate loans with deferrals granted due to COVID-19 as past due because of the deferral. A loan’s payment date is governed by the due date stipulated in the legal agreement. If a financial institution agrees to a payment deferral, these loans would not be considered past due during the period of the deferral. ● Nonaccrual Status and Charge-offs - During short-term COVID-19 modifications, these loans generally should not be reported as nonaccrual. The Company began offering short-term loan modifications to assist borrowers during the COVID-19 national emergency. The Company offered deferral options of: 1) three months deferral of payment and then three months of interest only, 2) three months of interest only, 3) three months deferral of payment, 4) six months of interest only. These modifications generally meet the criteria of both Section 4013 of the CARES Act and the joint interagency statement, and therefore, the Company does not account for such loan modifications as TDRs. On August 3, 2020, the Federal Financial Institutions Examination Council on behalf of its members (collectively “the FFIEC members”) issued a joint statement on additional loan accommodations related to COVID-19. The joint statement clarifies that for loan modifications in which Section 4013 is being applied, subsequent modifications could also be eligible under Section 4013. To be eligible, each loan modification must be (1) related to the COVID event; (2) executed on a loan that was not more than 30 days past due as of December 31, 2019; and (3) executed between March 1, 2020, and the earlier of (A) 60 days after the date of termination of the National Emergency or (B) December 31, 2020. The December 31, 2020, deadline was subsequently extended to January 1, 2022, by the CAA. All of the Company’s loan modifications granted under Section 4013 of the CARES Act are in compliance with the aforementioned FFIEC requirements. Accordingly, the Company does not account for such loan modifications as TDRs. ​ ​ Reclassifications: Certain captions and amounts in the 2020 consolidated financial statements were reclassified to conform to the 2021 financial statement presentation. These reclassifications had no impact on net income or shareholders’ equity as previously reported.

Business Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2021
Business Combinations [Abstract]
Business Combinations	Note 2. Business Combinations Sevier County Bancshares, Inc. On September 1, 2021, the Company completed the acquisition of Sevier County Bancshares, Inc., a Tennessee corporation (“SCB”), pursuant to an Agreement and Plan of Merger dated April 13, 2021 (the “Merger Agreement”). In connection with the merger, the Company acquired $484.9 million of assets and assumed $443.1 million of liabilities. Pursuant to the Merger Agreement, at the effective time of the merger, SCB shareholders were entitled to receive for each share of SCB common stock, no par value per share, outstanding immediately prior to the Merger, either (i) $10.17 in cash (the “Per Share Cash Consideration”), or (ii) 0.4116 shares of Company common stock, par value $1.00 (the “Per Share Stock Consideration”). Pursuant to the terms of the Merger Agreement, (i) each SCB shareholder holding 20,000 shares or more of SCB common stock will receive the Per Share Stock Consideration and (ii) each SCB shareholder holding fewer than 20,000 shares of SCB common stock may elect to receive either the Per Share Stock Consideration or the Per Share Cash Consideration. The purchased assets and assumed liabilities were recorded at their acquisition date fair values (1) and are summarized in the table below (in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Initial ​ ​ ​ ​ ​ ​ ​ As recorded Fair value ​ Subsequent As recorded ​ ​ by SCB ​ adjustments ​ Adjustments ​ by the Company Assets: ​ ​ ​ ​ ​ ​ Cash & cash equivalents ​ $ 84,313 ​ $ — ​ $ — ​ $ 84,313 Investment securities available-for-sale ​ 64,219 ​ (614) ​ ​ — ​ 63,605 Restricted investments ​ 533 ​ — ​ ​ — ​ 533 Loans ​ 304,620 ​ (4,551) ​ ​ — ​ 300,069 Allowance for loan losses ​ (3,644) ​ 3,644 ​ ​ — ​ — Premises and equipment, net ​ 15,579 ​ (295) ​ ​ — ​ 15,284 Bank owned life insurance ​ 7,116 ​ — ​ ​ — ​ 7,116 Deferred tax asset, net ​ 10,340 ​ (4,007) ​ ​ — ​ 6,333 Core deposit intangible ​ — ​ 1,550 ​ ​ — ​ 1,550 Interest Receivable ​ 884 ​ — ​ ​ — ​ 884 Other assets ​ 920 ​ (272) ​ ​ — ​ 648 Total assets acquired ​ $ 484,880 ​ $ (4,545) ​ $ — ​ $ 480,335 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Deposits ​ $ 435,036 ​ $ — ​ ​ — ​ $ 435,036 Time deposit premium ​ — ​ 888 ​ ​ — ​ 888 Subordinated debt ​ ​ 2,500 ​ ​ — ​ ​ — ​ ​ 2,500 Payables and other liabilities ​ 5,563 ​ 115 ​ ​ — ​ 5,678 Total liabilities assumed ​ 443,099 ​ 1,003 ​ — ​ 444,102 Excess of assets acquired over liabilities assumed ​ $ 41,781 ​ ​ ​ ​ ​ Aggregate fair value adjustments ​ ​ $ (5,548) ​ $ — ​ Total identifiable net assets ​ ​ ​ ​ ​ ​ 36,233 Consideration transferred: ​ ​ ​ ​ ​ ​ Cash ​ ​ ​ ​ ​ ​ 9,568 Common stock issued ( ​ ​ ​ ​ ​ ​ 42,254 Total fair value of consideration transferred ​ ​ ​ ​ ​ ​ 51,822 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Goodwill ​ ​ ​ ​ ​ ​ $ 15,589 (1) The following table presents additional information related to the purchased credit impaired loans (ASC 310-30) of the acquired loan portfolio at the acquisition date (in thousands) ​ ​ ​ ​ ​ September 1, 2021 Accounted for pursuant to ASC 310-30: ​ Contractually required principal and interest ​ $ 25,932 Non-accretable differences ​ 4,203 Cash flows expected to be collected ​ 21,729 Accretable yield ​ 3,480 Fair value ​ $ 18,249 ​ The following table discloses the impact of the merger with SCB since the acquisition date through the three and nine months ended September 30, 2021. The table also presents certain pro-forma information (net interest income plus total noninterest income (“Revenue”) and net income) as if the SCB acquisition had occurred on January 1, 2020. The pro-forma financial information is not necessarily indicative of the results of operations had the acquisitions been effective as of these dates. Merger-related costs for the three and nine months ended September 30, 2021, were $445 thousand and $683 thousand, respectively, and have been excluded from the pro-forma information presented below. The actual results and pro-forma information were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ Revenue Net Income ​ Revenue Net Income 2021: ​ ​ ​ ​ ​ ​ ​ ​ Actual SCB results included in statement of income since acquisition date ​ $ 1,090 ​ $ 343 ​ $ 1,090 ​ $ 343 Supplemental consolidation pro-forma as if SCB had been acquired January 1, 2021 ​ 39,207 ​ 10,516 ​ 110,745 ​ 30,984 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020: ​ ​ ​ ​ Supplemental consolidation pro-forma as if SCB had been acquired January 1, 2020 ​ $ 32,965 ​ $ 6,624 ​ $ 93,213 ​ $ 16,473 ​ Fountain Leasing, LLC On May 3, 2021, the Company completed the acquisition of Fountain Leasing, LLC, a Tennessee limited liability company, pursuant to the Purchase Agreement (the “Purchase Agreement”), dated May 2, 2021, by and among the Bank and the members of Fountain Leasing, LLC. Following the closing of the acquisition, on May 4, 2021, the Company changed the name of Fountain Leasing, LLC to Fountain Equipment Finance, LLC (“Fountain”). In connection with the acquisition, the Company acquired $54.1 million of assets and assumed $683 thousand of liabilities. Pursuant to the Purchase Agreement, the Company paid an aggregate amount of consideration to the Fountain members of $14.0 million in cash at closing, and the Company repaid approximately $45.8 million of Fountain’s indebtedness. In addition to the closing consideration, the Purchase Agreement contains a performance-based earnout, pursuant to which the former members of Fountain could be entitled to up to $6.0 million, which is excluded from consideration pursuant to ASC 805, in future cash payments from the Company based on future results of the acquired business over various periods through December 31, 2026. ​ The purchased assets and assumed liabilities were recorded at their acquisition date fair values (1) and are summarized in the table below (in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As recorded Fair value ​ Subsequent As recorded ​ ​ by Fountain ​ adjustments ​ Adjustments ​ by the Company Assets: ​ ​ ​ ​ ​ ​ Cash & cash equivalents ​ $ 413 ​ $ — ​ $ — ​ $ 413 Leases ​ 54,945 ​ (720) ​ ​ — ​ 54,225 Allowance for lease losses ​ (1,796) ​ 1,796 ​ ​ — ​ — Customer list intangible ​ — ​ 2,658 ​ ​ — ​ 2,658 Other repossessed assets ​ 319 ​ — ​ ​ — ​ 319 Other assets ​ 233 ​ — ​ ​ — ​ 233 Total assets acquired ​ $ 54,114 ​ $ 3,734 ​ $ — ​ $ 57,848 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Payables and other liabilities ​ 683 ​ (229) ​ ​ — ​ 454 Total liabilities assumed ​ 683 ​ (229) ​ — ​ 454 Excess of assets acquired over liabilities assumed ​ $ 53,431 ​ ​ ​ ​ ​ Aggregate fair value adjustments ​ ​ $ 3,963 ​ $ — ​ Total identifiable net assets ​ ​ ​ ​ ​ ​ 57,394 Consideration transferred: ​ ​ ​ ​ ​ ​ Cash ​ ​ ​ ​ ​ ​ 59,794 Total fair value of consideration transferred ​ ​ ​ ​ ​ ​ 59,794 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Goodwill ​ ​ ​ ​ ​ ​ $ 2,400 (1) Fair values are preliminary and are subject to refinement for a period of one year after the closing date of an acquisition as information relative to the closing date fair value becomes available. ​ The following table presents additional information related to the purchased credit impaired financing leases (ASC 310-30) of the acquired lease portfolio at the acquisition date (in thousands) ​ ​ ​ ​ ​ May 3, 2021 Accounted for pursuant to ASC 310-30: ​ Contractually required principal and interest ​ $ 6,018 Non-accretable differences ​ 447 Cash flows expected to be collected ​ 5,571 Accretable yield ​ 649 Fair value ​ $ 4,922 ​ The following table discloses the impact of the merger with Fountain since the acquisition date through the three and nine months ended September 30, 2021. The table also presents certain pro-forma information (net interest income plus total noninterest income (“Revenue”) and net income) as if the Fountain acquisition had occurred on January 1, 2020. The pro-forma financial information is not necessarily indicative of the results of operations had the acquisitions been effective as of these dates. Merger-related costs for the three and nine months ended September 30, 2021, were $18 thousand and $159 thousand, respectively, and have been excluded from the pro-forma information presented below. The actual results and pro-forma information were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ Revenue Net Income ​ Revenue Net Income 2021: ​ ​ ​ ​ ​ ​ ​ ​ Actual Fountain results included in statement of income since acquisition date ​ $ 1,696 ​ $ 357 ​ $ 2,834 ​ $ 702 Supplemental consolidation pro-forma as if Fountain had been acquired January 1, 2021 ​ 36,690 ​ 9,614 ​ 102,470 ​ 28,101 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020: ​ ​ ​ ​ Supplemental consolidation pro-forma as if Fountain had been acquired January 1, 2020 ​ $ 31,566 ​ $ 6,744 ​ $ 89,016 ​ $ 16,274 ​ Progressive Financial Inc. On March 1, 2020, the Company completed the merger of Progressive Financial Group, Inc., a Tennessee corporation (“PFG”), pursuant to an Agreement and Plan of Merger dated October 29, 2019 (the “Merger Agreement”). In connection with the merger, the Company acquired $301.0 million of assets and assumed $272.1 million of liabilities. Pursuant to the Merger Agreement, each outstanding share of Progressive common stock was converted into and cancelled in exchange to the right to receive $474.82 in cash, and 62.3808 shares of SmartFinancial common stock. SmartFinancial issued 1,292,578 shares of SmartFinancial common stock and paid $9.8 million in cash as consideration for the Merger. The fair value of consideration paid exceeded the fair value of the identifiable assets and liabilities acquired and resulted in the establishment of goodwill in the amount of $8.8 million, representing the intangible value of Progressive’s business and reputation within the markets it served. None of the goodwill recognized is expected to be deductible for income tax purposes. The Company is amortizing the related core deposit intangible of $1.4 million using the effective yield method over 120 months (10 years), which represents the expected useful life of the asset. The Company also established two intangible assets related to the insurance agency acquired as part of the PFG acquisition; 1.) Customer relationships of $1.1 million, amortizing sum-of-the-years digits over 120 months (10 years), 2.) Tradename of $63 thousand, amortizing straight-line over 60 months (5 years). The purchased assets and assumed liabilities were recorded at their acquisition date fair values and are summarized in the table below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Initial ​ ​ ​ ​ ​ ​ ​ As recorded Fair value ​ Subsequent As recorded ​ ​ by PFG ​ adjustments ​ Adjustments ​ by the Company Assets: ​ ​ ​ ​ ​ ​ Cash & cash equivalents ​ $ 55,971 ​ $ — ​ $ — ​ $ 55,971 Investment securities available-for-sale ​ 27,054 ​ 203 ​ ​ — ​ 27,257 Restricted investments ​ 692 ​ — ​ ​ — ​ 692 Loans ​ 191,672 ​ (3,691) ​ ​ — ​ 187,981 Allowance for loan losses ​ (2,832) ​ 2,832 ​ ​ — ​ — Premises and equipment, net ​ 15,681 ​ (2,919) ​ ​ — ​ 12,762 Bank owned life insurance ​ 5,560 ​ — ​ ​ — ​ 5,560 Deferred tax asset, net ​ — ​ 813 ​ ​ 193 ​ 1,006 Intangibles ​ — ​ 1,370 ​ ​ 1,127 ​ 2,497 Other real estate owned ​ 3,695 ​ (100) ​ ​ (1,862) ​ 1,733 Interest Receivable ​ 1,061 ​ (280) ​ ​ — ​ 781 Prepaids ​ 375 ​ (174) ​ ​ — ​ 201 Goodwill ​ 231 ​ (231) ​ ​ — ​ — Other assets ​ 1,881 ​ — ​ ​ — ​ 1,881 Total assets acquired ​ $ 301,041 ​ $ (2,177) ​ $ (542) ​ $ 298,322 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Deposits ​ $ 271,276 ​ $ — ​ ​ — ​ $ 271,276 Time deposit premium ​ — ​ 729 ​ ​ — ​ 729 Payables and other liabilities ​ 776 ​ — ​ ​ — ​ 776 Total liabilities assumed ​ 272,052 ​ 729 ​ — ​ 272,781 Excess of assets acquired over liabilities assumed ​ $ 28,989 ​ ​ ​ ​ ​ Aggregate fair value adjustments ​ ​ $ (2,906) ​ $ (542) ​ Total identifiable net assets ​ ​ ​ ​ ​ ​ 25,541 Consideration transferred: ​ ​ ​ ​ ​ ​ Cash ​ ​ ​ ​ ​ ​ 9,838 Common stock issued ( ​ ​ ​ ​ ​ ​ 24,547 Total fair value of consideration transferred ​ ​ ​ ​ ​ ​ 34,385 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Goodwill ​ ​ ​ ​ ​ ​ $ 8,844 ​ The following table presents additional information related to the purchased credit impaired loans (ASC 310-30) of the acquired loan portfolio at the acquisition date (in thousands) ​ ​ ​ ​ ​ ​ March 1, 2020 Accounted for pursuant to ASC 310-30: ​ Contractually required principal and interest ​ $ 21,107 Non-accretable differences ​ 4,706 Cash flows expected to be collected ​ 16,401 Accretable yield ​ 2,515 Fair value ​ $ 13,886 ​ ​

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Note 3. Earnings Per Share Basic earnings per common share is computed by dividing net income available to common shareholders by the weighted-average number of common shares outstanding. Diluted earnings per common share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding and dilutive common share equivalents using the treasury stock method. Dilutive common share equivalents include common shares issuable upon exercise of outstanding stock options and restricted stock. The effect from the stock options and restricted stock on incremental shares from the assumed conversions for net income per share-basic and net income per share-diluted are presented below. There were no antidilutive shares for the three and nine months ended September 30, 2021. There were 114 thousand and 85 thousand antidilutive shares for the three and nine months ended September 30, 2020, respectively. ​ The following is a summary of the basic and diluted earnings per share computation (dollars in thousands, except per share data) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 2020 ​ 2021 2020 Basic earnings per share computation: ​ ​ ​ ​ ​ Net income available to common shareholders ​ $ 9,600 ​ $ 6,395 ​ $ 28,134 ​ $ 15,302 Average common shares outstanding – basic ​ 15,557,528 ​ 15,160,579 ​ 15,192,919 ​ 14,903,757 Basic earnings per share ​ $ 0.62 ​ $ 0.42 ​ $ 1.85 ​ $ 1.03 Diluted earnings per share computation: ​ ​ ​ ​ Net income available to common shareholders ​ $ 9,600 ​ $ 6,395 ​ $ 28,134 ​ $ 15,302 Average common shares outstanding – basic ​ 15,557,528 ​ 15,160,579 ​ 15,192,919 ​ 14,903,757 Incremental shares from assumed conversions: ​ ​ ​ ​ Stock options and restricted stock ​ 133,598 ​ 50,032 ​ 119,836 ​ 61,698 Average common shares outstanding - diluted ​ 15,691,126 ​ 15,210,611 ​ 15,312,755 ​ 14,965,455 Diluted earnings per common share ​ $ 0.61 ​ $ 0.42 ​ $ 1.84 ​ $ 1.02 ​

Securities

Securities	9 Months Ended
	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Securities	Note 4. Securities The amortized cost, gross unrealized gains and losses and fair value of securities available-for-sale are summarized as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ ​ Gross Gross ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair ​ ​ Cost ​ Gains ​ Losses ​ Value U.S. Treasury ​ $ 93,910 ​ $ 176 ​ $ (61) ​ $ 94,025 U.S. Government-sponsored enterprises (GSEs) ​ ​ 54,175 ​ ​ 201 ​ ​ (913) ​ ​ 53,463 Municipal securities ​ 93,422 ​ 2,179 ​ (31) ​ 95,570 Other debt securities ​ 25,996 ​ 367 ​ (72) ​ 26,291 Mortgage-backed securities (GSEs) ​ 68,837 ​ 1,339 ​ (182) ​ 69,994 Total ​ $ 336,340 ​ $ 4,262 ​ $ (1,259) ​ $ 339,343 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ Gross Gross ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair ​ ​ Cost ​ Gains ​ Losses ​ Value U.S. Government-sponsored enterprises (GSEs) ​ $ 30,526 ​ $ 10 ​ $ (6) ​ $ 30,530 Municipal securities ​ 89,644 ​ 2,345 ​ — ​ 91,989 Other debt securities ​ 25,019 ​ 112 ​ (13) ​ 25,118 Mortgage-backed securities (GSEs) ​ 66,425 ​ 1,754 ​ (182) ​ 67,997 Total ​ $ 211,614 ​ $ 4,221 ​ $ (201) ​ $ 215,634 ​ At September 30, 2021 and December 31, 2020, securities with a carrying value totaling approximately $161.4 million and $80.2 million, respectively, were pledged to secure public funds and securities sold under agreements to repurchase. The Company has entered-into-various fair value hedging transactions to mitigate the impact of changing interest rates on the fair values of available for sale securities. See Note 11 – Derivatives Financial Instruments ​ Proceeds from sale of securities available-for-sale, gross gains and gross losses on sales and redemptions for the three and nine months ended September 30, 2021, and 2020 were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 2020 ​ 2021 2020 Proceeds from sales ​ $ 16,771 ​ $ 4,884 ​ $ 16,771 ​ $ 11,759 Gross gains ​ $ 64 ​ $ 17 ​ $ 64 ​ $ 43 Gross losses ​ $ (19) ​ $ (26) ​ $ (19) ​ $ (37) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Proceeds from maturities and calls ​ $ 32,275 ​ $ 30,350 ​ $ 43,551 ​ $ 45,800 ​ The amortized cost and estimated fair value of securities at September 30, 2021, by contractual maturity for non-mortgage backed securities are shown below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ Amortized Fair ​ ​ Cost ​ Value Due in one year or less ​ $ 61,259 ​ $ 61,267 Due from one year to five years ​ 3,817 ​ 3,843 Due from five years to ten years ​ 90,688 ​ 91,409 Due after ten years ​ 111,739 ​ 112,830 ​ ​ 267,503 ​ 269,349 Mortgage-backed securities ​ 68,837 ​ 69,994 Total ​ $ 336,340 ​ $ 339,343 ​ ​ The following tables present the gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities available-for-sale have been in a continuous unrealized loss position (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ Less than 12 Months ​ 12 Months or Greater ​ Total ​ ​ ​ Gross ​ Number ​ ​ Gross ​ Number ​ ​ Gross ​ Number ​ ​ Fair ​ Unrealized ​ of ​ Fair ​ Unrealized ​ of ​ Fair ​ Unrealized ​ of ​ ​ Value ​ Losses ​ Securities ​ Value ​ Losses ​ Securities ​ Value ​ Losses ​ Securities U.S. Treasury ​ $ 76,626 ​ $ (61) ​ 4 ​ $ — ​ $ — ​ — ​ $ 76,626 ​ $ (61) ​ 4 U.S. Government-sponsored enterprises (GSEs) ​ ​ 37,469 ​ ​ (910) ​ 10 ​ ​ 841 ​ ​ (3) ​ 3 ​ ​ 38,310 ​ ​ (913) ​ 13 Municipal securities ​ 3,929 ​ (31) ​ 3 ​ — ​ — ​ — ​ 3,929 ​ (31) ​ 3 Other debt securities ​ 5,982 ​ (72) ​ 6 ​ — ​ — ​ — ​ 5,982 ​ (72) ​ 6 Mortgage-backed securities (GSEs) ​ 8,891 ​ (59) ​ 8 ​ 8,780 ​ (123) ​ 6 ​ 17,671 ​ (182) ​ 14 Total ​ $ 132,897 ​ $ (1,133) ​ 31 ​ $ 9,621 ​ $ (126) ​ 9 ​ $ 142,518 ​ $ (1,259) ​ 40 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ Less than 12 Months ​ 12 Months or Greater ​ Total ​ ​ ​ Gross ​ Number ​ ​ Gross ​ Number ​ ​ Gross ​ Number ​ ​ Fair ​ Unrealized ​ of ​ Fair ​ Unrealized ​ of ​ Fair ​ Unrealized ​ of ​ ​ Value ​ Losses ​ Securities ​ Value ​ Losses ​ Securities ​ Value ​ Losses ​ Securities U.S. Government-sponsored enterprises (GSEs) ​ $ 15,510 ​ $ (5) ​ 3 ​ $ 132 ​ $ (1) ​ 1 ​ $ 15,642 ​ $ (6) ​ 4 Other debt securities ​ 1,495 ​ (5) ​ 1 ​ 977 ​ (8) ​ 1 ​ 2,472 ​ (13) ​ 2 Mortgage-backed securities (GSEs) ​ 9,790 ​ (87) ​ 6 ​ 6,083 ​ (95) ​ 3 ​ 15,873 ​ (182) ​ 9 Total ​ $ 26,795 ​ $ (97) ​ 10 ​ $ 7,192 ​ $ (104) ​ 5 ​ $ 33,987 ​ $ (201) ​ 15 ​ The Company reviews the securities portfolio on a quarterly basis to monitor its exposure to other-than-temporary impairment. A determination as to whether a security’s decline in fair value is other-than-temporary takes into consideration numerous factors and the relative significance of any single factor can vary by security. Some factors the Company may consider in the other-than-temporary impairment analysis include the length of time and extent to which the security has been in an unrealized loss position, changes in security ratings, financial condition and near-term prospects of the issuer, as well as security and industry specific economic conditions. Based on this evaluation, the Company concluded that any unrealized losses at September 30, 2021, represented a temporary impairment, as these unrealized losses are primarily attributable to changes in interest rates and current market conditions, and not credit deterioration of the issuers. As of September 30, 2021, the Company does not intend, or be required, to sell any of the securities, and expects to recover the entire amortized cost of all of the securities. The following is the amortized cost and carrying value of other investments (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, ​ December 31, ​ 2021 2020 Federal Reserve Bank stock ​ $ 8,171 $ 8,606 Federal Home Loan Bank stock ​ 6,451 ​ 5,838 First National Bankers Bank stock ​ 350 ​ 350 Total ​ $ 14,972 ​ $ 14,794 ​ Our restricted investments consist of non-marketable equity securities that have no readily determinable market value. Accordingly, when evaluating these securities for impairment, management considers the ultimate recoverability of the par value rather than recognizing temporary declines in value. As of September 30, 2021, the Company determined that there was no impairment on its other investments.

Loans and Leases and Allowance

Loans and Leases and Allowance for Loan and Lease Losses	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Loans and Leases and Allowance for Loan and Lease Losses	Note 5. Loans and Leases and Allowance for Loan and Lease Losses Portfolio Segmentation: Major categories of loans and leases are summarized as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ December 31, 2020 ​ ​ PCI ​ All Other ​ ​ ​ ​ PCI ​ All Other ​ ​ ​ ​ Loans and Leases 1 Loans and Leases Total Loans and Leases 1 Loans and Leases Total Commercial real estate ​ $ 23,156 ​ $ 1,290,091 ​ $ 1,313,247 ​ $ 16,123 ​ $ 996,853 ​ $ 1,012,976 Consumer real estate ​ 10,863 ​ 467,298 ​ 478,161 ​ 10,258 ​ 433,672 ​ 443,930 Construction and land development ​ 2,904 ​ 323,470 ​ 326,374 ​ 5,348 ​ 272,727 ​ 278,075 Commercial and industrial ​ 2,871 ​ 466,868 ​ 469,739 ​ 308 ​ 634,138 ​ 634,446 Leases ​ ​ 3,748 ​ ​ 49,648 ​ ​ 53,396 ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ 87 ​ 11,659 ​ 11,746 ​ 27 ​ 12,789 ​ 12,816 Total loans and leases ​ 43,629 ​ 2,609,034 ​ 2,652,663 ​ 32,064 ​ 2,350,179 ​ 2,382,243 Less: Allowance for loan and lease losses ​ (427) ​ (18,868) ​ (19,295) ​ (309) ​ (18,037) ​ (18,346) Loans and leases, net ​ $ 43,202 ​ $ 2,590,166 ​ $ 2,633,368 ​ $ 31,755 ​ $ 2,332,142 ​ $ 2,363,897 1 ​ For purposes of the disclosures required pursuant to ASC 310, the loan and lease portfolio was disaggregated into segments. A portfolio segment is defined as the level at which an entity develops and documents a systematic method for determining its allowance for credit losses. There are six loan and lease portfolio segments that include commercial real estate, consumer real estate, construction and land development, commercial and industrial, leases, and consumer and other. As previously mentioned in Note 1 – Presentation of Financial Information ​ The composition of loans and leases by loan classification for performing, impaired and PCI loan and leases status is summarized in the tables below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Real Estate ​ Development ​ Industrial ​ Leases ​ and Other ​ Total September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans and leases $ 1,289,233 ​ $ 464,881 ​ $ 323,470 ​ $ 466,769 ​ $ 49,648 ​ $ 11,659 ​ $ 2,605,660 Impaired loans and leases ​ 858 ​ 2,417 ​ — ​ 99 ​ — ​ — ​ 3,374 ​ ​ 1,290,091 ​ 467,298 ​ 323,470 ​ 466,868 ​ 49,648 ​ 11,659 ​ 2,609,034 PCI loans and leases ​ 23,156 ​ 10,863 ​ 2,904 ​ 2,871 ​ 3,748 ​ 87 ​ 43,629 Total loans and leases ​ $ 1,313,247 ​ $ 478,161 ​ $ 326,374 ​ $ 469,739 ​ $ 53,396 ​ $ 11,746 ​ $ 2,652,663 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans and leases $ 992,982 ​ $ 432,356 ​ $ 272,727 ​ $ 633,992 ​ $ — ​ $ 12,789 ​ $ 2,344,846 Impaired loans and leases ​ 3,871 ​ 1,316 ​ — ​ 146 ​ — ​ — ​ 5,333 ​ ​ 996,853 ​ 433,672 ​ 272,727 ​ 634,138 ​ — ​ 12,789 ​ 2,350,179 PCI loans and leases ​ 16,123 ​ 10,258 ​ 5,348 ​ 308 ​ — ​ 27 ​ 32,064 Total loans and leases ​ $ 1,012,976 ​ $ 443,930 ​ $ 278,075 ​ $ 634,446 ​ $ — ​ $ 12,816 ​ $ 2,382,243 ​ The following tables show the allowance for loan and lease losses allocation by loan and lease classification for impaired, PCI, and performing (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ ​ ​ ​ and ​ ​ ​ ​ ​ Real Estate ​ Real Estate ​ Development ​ Industrial ​ Leases ​ Other ​ Total September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans and leases $ 8,927 $ 3,316 $ 2,218 $ 3,493 $ 225 $ 103 $ 18,282 Impaired loans and leases ​ 417 ​ 70 ​ — ​ 99 ​ — ​ — ​ 586 ​ ​ 9,344 ​ 3,386 ​ 2,218 ​ 3,592 ​ 225 ​ 103 ​ 18,868 PCI loans and leases ​ 61 ​ 155 ​ — ​ 209 ​ — ​ 2 ​ 427 Total loans and leases ​ $ 9,405 ​ $ 3,541 ​ $ 2,218 ​ $ 3,801 ​ $ 225 ​ $ 105 ​ $ 19,295 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans and leases $ 7,579 $ 3,267 $ 2,076 $ 4,768 ​ $ — $ 110 $ 17,800 Impaired loans and leases ​ — ​ 116 ​ — ​ 121 ​ — ​ — ​ 237 ​ ​ 7,579 ​ 3,383 ​ 2,076 ​ 4,889 ​ — ​ 110 ​ 18,037 PCI loans and leases ​ — ​ 88 ​ — ​ 218 ​ — ​ 3 ​ 309 Total loans and leases ​ $ 7,579 ​ $ 3,471 ​ $ 2,076 ​ $ 5,107 ​ $ — ​ $ 113 ​ $ 18,346 ​ ​ The following tables detail the changes in the allowance for loan and lease losses by loan and lease classification (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, 2021 ​ ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Beginning balance $ 8,382 $ 3,323 $ 2,061 $ 4,442 $ — $ 102 $ 18,310 Charged-off loans and leases ​ — ​ — ​ — ​ (41) ​ (68) ​ (132) ​ (241) Recoveries of charge-offs ​ 23 ​ 13 ​ — ​ 3 ​ 5 ​ 33 ​ 77 Provision charged to expense ​ 1,000 ​ 205 ​ 157 ​ (603) ​ 288 ​ 102 ​ 1,149 Ending balance ​ $ 9,405 ​ $ 3,541 ​ $ 2,218 ​ $ 3,801 ​ $ 225 ​ $ 105 ​ $ 19,295 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, 2020 ​ ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Beginning balance $ 6,595 $ 3,313 $ 1,795 $ 4,443 $ — $ 108 $ 16,254 Charged-off loans and leases ​ — ​ (21) ​ — ​ (60) ​ — ​ (89) ​ (170) Recoveries of charge-offs ​ 11 ​ 17 ​ — ​ 55 ​ — ​ 16 ​ 99 Provision charged to expense ​ 1,123 ​ 135 ​ 265 ​ 1,025 ​ — ​ 86 ​ 2,634 Ending balance ​ $ 7,729 ​ $ 3,444 ​ $ 2,060 ​ $ 5,463 ​ $ — ​ $ 121 ​ $ 18,817 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, 2021 ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Beginning balance $ 7,579 $ 3,471 $ 2,076 $ 5,107 $ — $ 113 $ 18,346 Charged-off loans and leases ​ — ​ (60) ​ — ​ (45) ​ (68) ​ (341) ​ (514) Recoveries of charge-offs ​ 29 ​ 34 ​ — ​ 13 ​ 5 ​ 171 ​ 252 Provision charged to expense ​ 1,797 ​ 96 ​ 142 ​ (1,274) ​ 288 ​ 162 ​ 1,211 Ending balance ​ $ 9,405 ​ $ 3,541 ​ $ 2,218 ​ $ 3,801 ​ $ 225 ​ $ 105 ​ $ 19,295 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, 2020 ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Beginning balance $ 4,508 $ 2,576 $ 1,127 $ 1,957 $ — $ 75 $ 10,243 Charged-off loans and leases ​ — ​ (23) ​ — ​ (77) ​ — ​ (231) ​ (331) Recoveries of charge-offs ​ 16 ​ 34 ​ 2 ​ 103 ​ — ​ 67 ​ 222 Provision charged to expense ​ 3,205 ​ 857 ​ 931 ​ 3,480 ​ — ​ 210 ​ 8,683 Ending balance ​ $ 7,729 ​ $ 3,444 ​ $ 2,060 ​ $ 5,463 ​ $ — ​ $ 121 ​ $ 18,817 ​ We maintain the allowance at a level that we deem appropriate to adequately cover the probable losses inherent in the loan and lease portfolio. Our provision for loan and lease losses for the three and nine months ended September 30, 2021, is $1.1 million and $1.2 million, respectively, and $2.6 million $8.7 million, during the three and nine months ended September 30, 2020, respectively. As of September 30, 2021, and December 31, 2020, our allowance for loan and lease losses was $19.3 million and $18.3 million, respectively, which we deemed to be adequate at each of the respective dates. Our allowance for loan and lease losses as a percentage of total loans and leases was 0.73% at September 30, 2021 and 0.77% at December 31, 2020. ​ ​ The following tables outline the amount of each loan and lease classification and the amount categorized into each risk rating (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ Non PCI Loans and Leases: ​ Real Estate ​ Real Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Pass $ 1,245,064 $ 461,422 $ 323,156 $ 460,588 $ 49,648 $ 11,591 $ 2,551,469 Watch ​ 40,106 ​ 1,490 ​ 240 ​ 5,767 ​ — ​ 45 ​ 47,648 Special mention ​ 3,841 ​ 1,527 ​ — ​ 244 ​ — ​ — ​ 5,612 Substandard ​ 1,080 ​ 2,859 ​ 74 ​ 224 ​ — ​ 23 ​ 4,260 Doubtful ​ — ​ — ​ — ​ 45 ​ — ​ — ​ 45 Total ​ ​ 1,290,091 ​ ​ 467,298 ​ ​ 323,470 ​ ​ 466,868 ​ ​ 49,648 ​ ​ 11,659 ​ ​ 2,609,034 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ PCI Loans and Leases: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 11,769 ​ 8,473 ​ 2,344 ​ 2,824 ​ 3,748 ​ 69 ​ 29,227 Watch ​ 7,719 ​ 754 ​ 91 ​ 1 ​ — ​ 18 ​ 8,583 Special mention ​ 579 ​ 70 ​ — ​ — ​ — ​ — ​ 649 Substandard ​ 3,089 ​ 1,566 ​ 469 ​ 46 ​ — ​ — ​ 5,170 Doubtful ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ ​ 23,156 ​ ​ 10,863 ​ ​ 2,904 ​ ​ 2,871 ​ ​ 3,748 ​ ​ 87 ​ ​ 43,629 Total loans and leases ​ $ 1,313,247 ​ $ 478,161 ​ $ 326,374 ​ $ 469,739 ​ $ 53,396 ​ $ 11,746 ​ $ 2,652,663 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ Non PCI Loans and Leases: ​ Real Estate ​ Real Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Pass $ 922,153 $ 417,302 $ 269,350 $ 625,836 $ — $ 12,622 $ 2,247,263 Watch ​ 66,287 ​ 14,218 ​ 3,296 ​ 7,673 ​ — ​ 137 ​ 91,611 Special mention ​ 4,446 ​ 46 ​ — ​ 320 ​ — ​ — ​ 4,812 Substandard ​ 3,967 ​ 2,020 ​ 81 ​ 261 ​ — ​ 30 ​ 6,359 Doubtful ​ — ​ 86 ​ — ​ 48 ​ — ​ — ​ 134 Total ​ ​ 996,853 ​ ​ 433,672 ​ ​ 272,727 ​ ​ 634,138 ​ ​ — ​ ​ 12,789 ​ ​ 2,350,179 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ PCI Loans and Leases: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 11,072 ​ 8,382 ​ 1,008 ​ 262 ​ — ​ 25 ​ 20,749 Watch ​ 3,381 ​ 224 ​ 3,820 ​ — ​ — ​ 2 ​ 7,427 Special mention ​ 19 ​ 57 ​ — ​ — ​ — ​ — ​ 76 Substandard ​ 1,651 ​ 1,595 ​ 520 ​ 46 ​ — ​ — ​ 3,812 Doubtful ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ ​ 16,123 ​ ​ 10,258 ​ ​ 5,348 ​ ​ 308 ​ ​ — ​ ​ 27 ​ ​ 32,064 Total loans and leases ​ $ 1,012,976 ​ $ 443,930 ​ $ 278,075 ​ $ 634,446 ​ $ — ​ $ 12,816 ​ $ 2,382,243 ​ Past Due Loans and Leases: A loan or lease is considered past due if any required principal and interest payments have not been received as of the date such payments were required to be made under the terms of the loan or lease agreement. Generally, management places a loan or lease on nonaccrual when there is a clear indicator that the borrower’s cash flow may not be sufficient to meet payments as they become due, which is generally when a loan or lease is 90 days past due. ​ ​ The following tables present an aging analysis of our loan and lease portfolio (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ 30-60 Days 61-89 Days Past Due 90 ​ ​ Total ​ ​ ​ ​ ​ ​ ​ Past Due and Past Due and Days or More ​ ​ ​ Past Due and ​ ​ ​ ​ Accruing Accruing and Accruing ​ Nonaccrual ​ Nonaccrual ​ PCI ​ Current ​ Total Commercial real estate ​ $ 1,599 ​ $ — ​ $ — ​ $ 858 ​ $ 2,457 ​ $ 23,156 ​ $ 1,287,634 ​ $ 1,313,247 Consumer real estate ​ 170 ​ — ​ — ​ 2,564 ​ 2,734 ​ 10,863 ​ 464,564 ​ 478,161 Construction and land development ​ 45 ​ — ​ — ​ — ​ 45 ​ 2,904 ​ 323,425 ​ 326,374 Commercial and industrial ​ 342 ​ 214 ​ — ​ 125 ​ 681 ​ 2,871 ​ 466,187 ​ 469,739 Leases ​ ​ 377 ​ ​ 42 ​ ​ — ​ ​ — ​ ​ 419 ​ ​ 3,748 ​ ​ 49,229 ​ ​ 53,396 Consumer and other ​ 193 ​ — ​ — ​ 20 ​ 213 ​ 87 ​ 11,446 ​ 11,746 Total ​ $ 2,726 ​ $ 256 ​ $ — ​ $ 3,567 ​ $ 6,549 ​ $ 43,629 ​ $ 2,602,485 ​ $ 2,652,663 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ 30-60 Days 61-89 Days Past Due 90 ​ ​ Total ​ ​ ​ ​ ​ ​ ​ Past Due and Past Due and Days or More ​ ​ ​ Past Due and ​ ​ ​ ​ Accruing Accruing and Accruing ​ Nonaccrual ​ Nonaccrual ​ PCI ​ Current ​ Total Commercial real estate ​ $ 134 ​ $ — ​ $ 67 ​ $ 3,740 ​ $ 3,941 ​ $ 16,123 ​ $ 992,912 ​ $ 1,012,976 Consumer real estate ​ 1,916 ​ 51 ​ 82 ​ 1,823 ​ 3,872 ​ 10,258 ​ 429,800 ​ 443,930 Construction and land development ​ 245 ​ — ​ — ​ 12 ​ 257 ​ 5,348 ​ 272,470 ​ 278,075 Commercial and industrial ​ 12 ​ 76 ​ — ​ 36 ​ 124 ​ 308 ​ 634,014 ​ 634,446 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ 14 ​ 5 ​ — ​ 22 ​ 41 ​ 27 ​ 12,748 ​ 12,816 Total ​ $ 2,321 ​ $ 132 ​ $ 149 ​ $ 5,633 ​ $ 8,235 ​ $ 32,064 ​ $ 2,341,944 ​ $ 2,382,243 ​ Impaired Loans and Leases: The following is an analysis of the impaired loan and lease portfolio, including PCI loans and leases, detailing the related allowance recorded (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 December 31, 2020 ​ ​ ​ Unpaid ​ ​ ​ ​ Unpaid ​ ​ ​ Recorded Principal Related Recorded Principal Related ​ ​ Investment Balance ​ Allowance ​ Investment Balance ​ Allowance Impaired loans and leases without a valuation allowance: ​ ​ ​ ​ ​ ​ Commercial real estate ​ $ — ​ $ — ​ $ — ​ $ 3,871 ​ $ 3,872 ​ $ — Consumer real estate ​ 2,156 ​ 2,157 ​ — ​ 888 ​ 888 ​ — Construction and land development ​ — ​ — ​ — ​ — ​ — ​ — Commercial and industrial ​ — ​ — ​ — ​ — ​ — ​ — Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ — ​ — ​ ​ 2,156 ​ 2,157 ​ — ​ 4,759 ​ 4,760 ​ — Impaired loans and leases with a valuation allowance: ​ ​ ​ ​ ​ ​ Commercial real estate ​ 858 ​ 858 ​ 417 ​ — ​ — ​ — Consumer real estate ​ 261 ​ 263 ​ 70 ​ 428 ​ 428 ​ 116 Construction and land development ​ — ​ — ​ — ​ — ​ — ​ — Commercial and industrial ​ 99 ​ 99 ​ 99 ​ 146 ​ 146 ​ 121 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ — ​ — ​ ​ 1,218 ​ 1,220 ​ 586 ​ 574 ​ 574 ​ 237 PCI loans and leases: ​ ​ ​ ​ ​ ​ Commercial real estate ​ 1,206 ​ 1,500 ​ 61 ​ — ​ — ​ — Consumer real estate ​ 1,196 ​ 1,318 ​ 155 ​ 1,827 ​ 2,086 ​ 88 Construction and land development ​ — ​ — ​ — ​ — ​ — ​ — Commercial and industrial ​ 255 ​ 228 ​ 209 ​ 270 ​ 234 ​ 218 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ 6 ​ 5 ​ 2 ​ 21 ​ 20 ​ 3 ​ ​ 2,663 ​ 3,051 ​ 427 ​ 2,118 ​ 2,340 ​ 309 Total impaired loans and leases ​ $ 6,037 ​ $ 6,428 ​ $ 1,013 ​ $ 7,451 ​ $ 7,674 ​ $ 546 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ ​ 2021 ​ 2020 ​ Average Interest Average Interest ​ Recorded Income Recorded Income ​ ​ Investment ​ Recognized Investment Recognized Impaired loans and leases without a valuation allowance: ​ ​ ​ ​ Commercial real estate ​ $ — ​ $ — ​ $ 552 ​ $ 3 Consumer real estate ​ 2,171 ​ 19 ​ 758 ​ 3 Construction and land development ​ — ​ — ​ — ​ — Commercial and industrial ​ — ​ — ​ — ​ — Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ ​ 2,171 ​ 19 ​ 1,310 ​ 6 Impaired loans and leases with a valuation allowance: ​ ​ ​ ​ Commercial real estate ​ 858 ​ — ​ 198 ​ — Consumer real estate ​ 261 ​ 3 ​ 440 ​ 4 Construction and land development ​ — ​ — ​ — ​ — Commercial and industrial ​ 154 ​ 2 ​ 379 ​ 2 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ ​ 1,273 ​ 5 ​ 1,017 ​ 6 PCI loans and leases: ​ ​ ​ ​ Commercial real estate ​ 1,230 ​ 27 ​ 8 ​ — Consumer real estate ​ 1,176 ​ 21 ​ 1,869 ​ 38 Construction and land development ​ — ​ — ​ — ​ — Commercial and industrial ​ 258 ​ 1 ​ 305 ​ 2 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ 10 ​ — ​ 27 ​ — ​ ​ 2,674 ​ 49 ​ 2,209 ​ 40 Total impaired loans and leases ​ $ 6,118 ​ $ 73 ​ $ 4,536 ​ $ 52 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, ​ ​ 2021 ​ 2020 ​ Average Interest Average Interest ​ Recorded Income Recorded Income ​ ​ Investment ​ Recognized Investment Recognized Impaired loans and leases without a valuation allowance: ​ ​ ​ ​ Commercial real estate ​ $ 1,000 ​ $ 1 ​ $ 374 ​ $ 7 Consumer real estate ​ 1,778 ​ 39 ​ 653 ​ 17 Construction and land development ​ — ​ — ​ 289 ​ — Commercial and industrial ​ — ​ — ​ — ​ — Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ ​ 2,778 ​ 40 ​ 1,316 ​ 24 Impaired loans and leases with a valuation allowance: ​ ​ ​ ​ ​ Commercial real estate ​ 1,218 ​ 104 ​ 198 ​ 2 Consumer real estate ​ 352 ​ 11 ​ 712 ​ 18 Construction and land development ​ — ​ — ​ — ​ — Commercial and industrial ​ 141 ​ 7 ​ 269 ​ 7 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ ​ 1,711 ​ 122 ​ 1,179 ​ 27 PCI loans and leases: ​ ​ ​ ​ Commercial real estate ​ 410 ​ 27 ​ 250 ​ 1 Consumer real estate ​ 1,169 ​ 64 ​ 1,344 ​ 77 Construction and land development ​ — ​ — ​ 58 ​ — Commercial and industrial ​ 263 ​ 3 ​ 343 ​ 5 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ 15 ​ — ​ 29 ​ — ​ ​ 1,857 ​ 94 ​ 2,024 ​ 83 Total impaired loans and leases ​ $ 6,346 ​ $ 256 ​ $ 4,519 ​ $ 134 ​ Troubled Debt Restructurings: For the periods presented, impaired loans included loans that were classified as TDRs. The restructuring of a loan is considered a TDR if both (i) the borrower is experiencing financial difficulties and (ii) the creditor has granted a concession. In assessing whether or not a borrower is experiencing financial difficulties, the Company considers information currently available regarding the financial condition of the borrower. This information includes, but is not limited to, whether (i) the debtor is currently in payment default on any of its debt; (ii) a payment default is probable in the foreseeable future without the modification; (iii) the debtor has declared or is in the process of declaring bankruptcy; and (iv) the debtor’s projected cash flow is sufficient to satisfy contractual payments due under the original terms of the loan without a modification. The Company considers all aspects of the modification to loan terms to determine whether or not a concession has been granted to the borrower. Key factors considered by the Company include the debtor’s ability to access funds at a market rate for debt with similar risk characteristics, the significance of the modification relative to unpaid principal balance or collateral value of the debt, and the significance of a delay in the timing of payments relative to the original contractual terms of the loan. The most common concessions granted by the Company generally include one or more modifications to the terms of the debt, such as (i) a reduction in the interest rate for the remaining life of the debt; (ii) an extension of the maturity date at an interest rate lower than the current market rate for new debt with similar risk; (iii) a temporary period of interest-only payments; and (iv) a reduction in the contractual payment amount for either a short period or remaining term of the loan. As of September 30, 2021 and December 31, 2020, management had approximately $212 thousand and $257 thousand, respectively, in loans that met the criteria for TDR, none of which were on nonaccrual. A loan is placed back on accrual status when both principal and interest are current, and it is probable that the Company will be able to collect all amounts due (both principal and interest) according to the terms of the loan agreement. There were no loans that were modified as a TDR during the nine months ended September 30, 2021, and one loan that was modified during the nine months ended September 30, 2020. There were no loans that were modified as TDRs during the past nine months and for which there was a subsequent payment default. The Company began offering short-term loan modifications to assist borrowers during the COVID-19 national emergency. CARES Act along with a joint agency statement issued by banking agencies, provides that short-term modifications made in response to COVID-19 does not need to be accounted for as a TDR. Accordingly, the Company does not account for such loan modifications as TDRs. See Note 1 Presentation of Financial Information Foreclosure Proceedings and Balances : As of September 30, 2021, there were no residential properties secured by real estate included in other real estate owned and there was one residential real estate loan totaling $33 thousand in the process of foreclosure. ​ Purchased Credit Impaired Loans and Leases: The Company has acquired loans and leases where there was, at acquisition, evidence of deterioration of credit quality since origination and it was probable, at acquisition, that all contractually required payments would not be collected. The carrying amount of those loans and leases are as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, December 31, ​ 2021 2020 Commercial real estate ​ $ 31,664 ​ $ 23,787 Consumer real estate ​ 13,211 ​ 12,692 Construction and land development ​ 3,686 ​ 1,812 Commercial and industrial ​ 3,794 ​ 6,521 Leases ​ ​ 4,133 ​ ​ — Consumer and other ​ 154 ​ 161 Total loans and leases ​ 56,642 ​ 44,973 Less: Remaining purchase discount ​ (13,013) ​ (12,909) Total loans and leases, net of purchase discount ​ 43,629 ​ 32,064 Less: Allowance for loan and leases losses ​ (427) ​ (309) Carrying amount, net of allowance ​ $ 43,202 ​ $ 31,755 ​ Activity related to the accretable yield on loans and leases acquired with deteriorated credit quality is as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 2020 2021 2020 Accretable yield, beginning of period ​ $ 14,522 ​ $ 11,777 ​ $ 16,889 ​ $ 8,454 Additions ​ 4,072 ​ — ​ 4,721 ​ 2,515 Accretion income ​ (2,151) ​ (1,267) ​ (5,180) ​ (4,401) Reclassification ​ 254 ​ 265 ​ 1,931 ​ 2,428 Other changes, net ​ (1,034) ​ 7,405 ​ (2,698) ​ 9,184 Accretable yield, end of period ​ $ 15,663 ​ $ 18,180 ​ $ 15,663 ​ $ 18,180 ​

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Note 6. Goodwill and Intangible Assets In accordance with FASB ASC 350, Goodwill and Other On September 30, 2021, the Company entered into a Purchase and Assumption Agreement and completed the sale of a portfolio of loans and certain assets associated (the “Sale”) with its branch office located in Richmond, Virginia to Strasburg, Virginia-based First Bank. In accordance with GAAP, the Company allocated a proportionate share of its goodwill balance to the Sale on a relative fair value basis. Based on a relative fair value analysis performed through the date of the sale, goodwill adjustment in the amount of $2.5 million related to the Sale was recorded during the third quarter of 2021. ​ The Company’s other intangible assets consist of core deposit, customer relationships and tradename. They are initially recognized based on a valuation performed as of the consummation date. The core deposit intangible is amortized over the average remaining life of the acquired customer deposits, the customer relationships are amortized over a weighted average of 8.6 years The carrying amount of goodwill and other intangible assets as of the dates indicated is summarized below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, December 31, ​ ​ 2021 ​ 2020 Goodwill: ​ ​ Balance, beginning of period ​ $ 74,135 ​ $ 65,614 Acquisition of PFG ​ 323 ​ 8,521 Acquisition of Fountain ​ 2,400 ​ — Acquisition of SCB ​ ​ 15,589 ​ ​ — Adjustment, due to Sale ​ ​ (2,463) ​ ​ — Balance, end of the period ​ $ 89,984 ​ $ 74,135 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Core Deposit Customer Relationships Tradename ​ ​ Amortized other intangible assets: ​ Intangibles ​ Intangibles ​ Intangibles ​ Total ​ Beginning balance January 1, 2021, gross ​ $ 15,920 ​ $ 1,064 ​ $ 63 ​ $ 17,047 ​ Acquisition of Fountain ​ ​ - ​ ​ 2,658 ​ ​ - ​ ​ 2,658 ​ Acquisition of SCB ​ ​ 1,550 ​ ​ - ​ ​ - ​ ​ 1,550 ​ Balance, September 30, 2021, other intangible assets, gross ​ ​ 17,470 ​ ​ 3,722 ​ ​ 63 ​ ​ 21,255 ​ Less: accumulated amortization ​ ​ (5,748) ​ ​ (541) ​ ​ (20) ​ ​ (6,309) ​ Balance, September 30, 2021, other intangible assets, net ​ $ 11,722 ​ $ 3,181 ​ $ 43 ​ $ 14,946 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance January 1, 2020, gross ​ $ 14,550 ​ $ - ​ $ - ​ $ 14,550 ​ Acquisition of PFG ​ ​ 1,370 ​ ​ 1,064 ​ ​ 63 ​ ​ 2,497 ​ Balance, December 31, 2020, other intangible assets, gross ​ ​ 15,920 ​ ​ 1,064 ​ ​ 63 ​ ​ 17,047 ​ Less: accumulated amortization ​ ​ (4,540) ​ ​ (161) ​ ​ (10) ​ ​ (4,711) ​ Balance, December 31, 2020, other intangible assets, net ​ $ 11,380 ​ $ 903 ​ $ 53 ​ $ 12,336 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The aggregate amortization expense for other intangible assets for the three and nine months ended September 30, 2021, was $711 thousand and $1.6 million, respectively, and for the three and nine months ended September 30, 2020, was $402 thousand and $1.2 million, respectively. The estimated aggregate amortization expense for future periods for intangibles is as follows (in thousands) ​ ​ ​ ​ ​ Remainder of 2021 $ 660 2022 ​ 2,521 2023 ​ 2,356 2024 ​ 2,203 2025 ​ ​ 2,041 Thereafter ​ 5,165 Total ​ $ 14,946 ​

Borrowings, Line of Credit and

Borrowings, Line of Credit and Subordinated Debt	9 Months Ended
	Sep. 30, 2021
Borrowings, Line of Credit and Subordinated Debt [Abstract]
Borrowings, Line of Credit and Subordinated Debt	Note 7. Borrowings, Line of Credit and Subordinated Debt Borrowings: At September 30, 2021, total borrowings were $88.7 million compared to $81.2 million at December 31, 2020. Borrowings consist of the following (dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, ​ December 31, ​ ​ 2021 ​ 2020 Securities sold under customer repurchase agreements $ 6,248 ​ $ 5,803 FHLB borrowings ​ ​ 75,000 ​ ​ 75,000 Other borrowings ​ ​ 7,500 ​ ​ 396 Total $ 88,748 ​ $ 81,199 ​ Securities Sold Under Agreements to Repurchase: The Company had securities sold under agreements to repurchase with commercial checking customers which were secured by government agency securities. The carrying value of investment securities pledged as collateral under repurchase agreements was $5.6 million and $7.6 million at September 30, 2021 and December 31, 2020, respectively. Line of Credit: The Company has a Loan and Security Agreement and revolving note with ServisFirst Bank, pursuant to which ServisFirst Bank has made a $25.0 million revolving line of credit available to the Company. The maturity of the line of credit is March 24, 2023. At September 30, 2021, $7.5 million was outstanding under the line of credit, and $17.5 million of the line of credit remained available to the Company. Subordinated Debit: On September 28, 2018, the Company issued $40 million of 5.625% fixed-to-floating rate subordinated notes (the "Notes"), which was outstanding as of September 30, 2021 and December 31, 2020. Unamortized debt issuance cost was $591 thousand and $654 thousand at September 30, 2021 and December 31, 2020, respectively. The Notes initially bears interest at a rate of 5.625% per annum from and including September 28, 2018, to but excluding October 2, 2023, with interest during this period payable semi-annually in arrears. From and including October 2, 2023, to but excluding the maturity date or early redemption date, the interest rate will reset quarterly to an annual floating rate equal to three-month LIBOR, or an alternative rate determined in accordance with the terms of the Notes if three-month LIBOR cannot be determined, plus 255 basis points, with interest during this period payable quarterly in arrears. The Notes are redeemable by the Company, in whole or in part, on or after October 2, 2023, and at any time, in whole but not in part, upon the occurrence of certain events. The Notes have been structured to qualify initially as Tier 2 capital for the Company for regulatory capital purposes. The Notes debt issuance costs totaled $842 thousand and will be amortized through the Notes’ maturity date. Amortization expense totaled $21 thousand and $63 thousand for the three and nine months ended September 30, 2021 and September 30, 2020, respectively On September 1, 2021, the Company acquired $2.5 million of subordinated notes (“sub-debt”) from the acquisition of SCB. The sub-debt bears interest at a rate of 6.75% per annum until August 14, 2024, with the interest during this period payable semi-annually in arrears. From and including August 14, 2024, to but excluding the maturity date or early redemption date, the interest rate will reset quarterly to an annual floating rate equal to three-month LIBOR, or an alternative rate determined in accordance with the terms of the sub-debt if three-month LIBOR cannot be determined, plus 530.25 basis points, with interest during this period payable quarterly in arrears. The sub-debt is redeemable by the Company, in whole or in part, on or after August 14, 2024, and at any time, in whole but not in part, upon the occurrence of certain events. The sub-debt has been structured to qualify initially as Tier 2 capital for the Company for regulatory capital purposes.

Employee Benefit Plans

Employee Benefit Plans	9 Months Ended
	Sep. 30, 2021
Defined Benefit Plan [Abstract]
Employee Benefit Plans	Note 8. Employee Benefit Plans 401(k) Plan: The Company provides a deferred salary reduction plan (“Plan”) under Section 401(k) of the Internal Revenue Code covering substantially all employees. After 90 days of service, the Company matches 100% of employee contributions up to 3% of compensation and 50% of employee contributions on the next 2% of compensation. The Company’s contribution to the Plan for the three and nine months ending September 30, 2021, was $287 thousand and $925 thousand, respectively. The Company’s contribution to the Plan for the three and nine months ending September 30, 2020, was $282 thousand and $840 thousand, respectively. Equity Incentive Plans: The Compensation Committee of the Company’s Board of Directors may grant or award eligible participants stock options, restricted stock, restricted stock units, stock appreciation rights, and other stock-based awards or any combination of awards (collectively referred to herein as "Rights"). At September 30, 2021, the Company had one active equity incentive plan available for future grants, the 2015 Stock Incentive Plan, which has 1,830,260 Rights available for future grants or awards. In addition, the Company has 19,250 Rights issued from the Cornerstone Bancshares, Inc. 2002 Long Term Incentive Plan, 40,250 Rights issued from the Cornerstone Non-Qualified Plan Options, and 2,266 Rights issued from the Capstone Stock Option Plan. These plans do not have any Rights available for future grants or awards. Stock Options: A summary of the status of stock option plans is presented in the following table: ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ ​ Exercisable ​ ​ Number ​ Price Outstanding at December 31, 2020 99,617 ​ $ 10.19 Granted — ​ — Exercised (19,040) ​ 10.18 Forfeited — ​ — Outstanding at September 30, 2021 80,577 ​ $ 10.19 ​ The Company did not recognize any stock option-based compensation expense during the three and nine months ended September 30, 2021 and 2020, respectively, as all stock options issued are fully vested. ​ Information pertaining to stock options outstanding at September 30, 2021, is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options Outstanding ​ Options Exercisable ​ ​ ​ Weighted- ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Average ​ Weighted- ​ ​ ​ Weighted- ​ ​ ​ ​ ​ Remaining ​ Average ​ ​ ​ Average Exercise ​ Number ​ Contractual ​ Exercise ​ Number ​ Exercise Prices ​ Outstanding ​ Life ​ Price ​ Exercisable ​ Price $ 6.60 19,250 0.45 years ​ $ 6.60 19,250 ​ $ 6.60 ​ 9.48 18,000 1.45 years ​ 9.48 18,000 ​ 9.48 ​ 9.60 22,250 2.25 years ​ 9.60 22,250 ​ 9.60 ​ 11.76 2,266 0.75 years ​ 11.76 2,266 ​ 11.76 ​ 15.05 18,811 3.75 years ​ 15.05 18,811 ​ 15.05 Outstanding, end of period 80,577 1.95 years ​ $ 10.19 ​ 80,577 ​ $ 10.19 ​ No stock options were exercised during the three months ended September 30, 2021. The intrinsic value of options exercised during nine months ended September 30, 2021, was $220 thousand, and $75 thousand and $141 thousand, during the three and nine months ended September 30, 2020, respectively. The aggregate intrinsic value of total options outstanding and exercisable options at September 30, 2021, was $1.3 million. Cash received from options exercised under all share-based payment arrangements for the nine months ended September 30, 2021 was $194 thousand. No options vested during the nine months ended September 30, 2021 and 2020, respectively. No stock options were exercised during the three months ended September 30, 2021. The income tax expense/benefit recognized for the exercise of options during the nine months ended September 30, 2021, was a benefit of $9 thousand and for the three and nine months ended September 30, 2020, was an expense of $3 thousand and a benefit of $19 thousand, respectively. As of September 30, 2021, all options were fully vested and currently no future compensation cost will be recognized related to nonvested stock-based compensation arrangements granted under the Plans. Restricted Stock Awards: A summary of the activity of the Company’s unvested restricted stock awards for the period ended September 30, 2021 is presented below: ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ ​ Grant-Date ​ ​ Number ​ Fair Value Balance at December 31, 2020 100,218 ​ $ 19.07 Granted 53,134 ​ 20.43 Vested (7,185) ​ 21.42 Forfeited/expired (1,800) ​ 16.37 Balance at September 30, 2021 144,367 ​ $ 19.49 ​ The Company measures the fair value of restricted stock awards based on the price of the Company’s common stock on the grant date, and compensation expense is recorded over the vesting period. The compensation expense for restricted stock awards during the three and nine months ended September 30, 2021, was $163 thousand and $525 thousand, respectively, and was $142 thousand and $365 thousand, during the three and nine months ended September 30, 2020, respectively. As of September 30, 2021, there was $1.6 million of unrecognized compensation cost related to non-vested restricted stock awards granted under the plan. The cost is expected to be recognized over a weighted average period of 2.74 years ​ Stock Appreciation Rights ("SARs"): A summary of the status of SARs plans is presented in the following table: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ Number Exercisable Price Outstanding at December 31, 2020 ​ 73,000 ​ $ 19.02 Granted ​ 22,000 ​ ​ 20.70 Exercised (23,500) ​ 21.61 Forfeited (6,000) ​ 18.00 Outstanding at September 30, 2021 65,500 ​ $ 18.75 ​ Information pertaining to SARs outstanding at September 30, 2021, is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SARs Outstanding ​ SARs Exercisable ​ ​ ​ ​ ​ Weighted- ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Average ​ Weighted- ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Remaining ​ Average ​ ​ ​ Weighted- Average Exercise ​ Number ​ Contractual ​ Exercise ​ Number ​ Exercise Prices Outstanding Life ​ ​ Price ​ Exercisable ​ Price $ 15.19 16,000 2.25 years $ 15.19 — $ — ​ 18.12 19,000 1.25 years ​ 18.12 — ​ — ​ 20.70 20,000 3.25 years ​ 20.70 — ​ — ​ 21.61 10,500 0.25 years ​ 21.61 10,500 ​ 21.61 ​ Outstanding, end of period 65,500 1.95 years ​ $ 18.75 10,500 ​ $ 21.61 ​ SARs compensation expense of $49 thousand and $162 thousand was recognized for the three and nine months ended September 30, 2021, respectively, and ($63) thousand and ($89) thousand for the three and nine months ended September 30, 2020. The credit in expense for the three and nine months ended September 30, 2020, was due to adjustments related to the fair value evaluation of SARs.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 9. Commitments and Contingent Liabilities The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing and depository needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. Such commitments involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amount recognized on the balance sheet. The majority of all commitments to extend credit are variable rate instruments while the standby letters of credit are primarily fixed rate instruments. The Company’s exposure to credit loss is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments as it does for on-balance sheet instruments. A summary of the Company’s total contractual amount for all off-balance sheet commitments are as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, ​ December 31, ​ ​ 2021 ​ 2020 Commitments to extend credit $ 616,271 ​ $ 476,841 Standby letters of credit ​ 10,439 ​ 5,261 ​ Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the customer. Collateral held varies, but may include accounts receivable, inventory, property and equipment, residential real estate, and income-producing commercial properties. Standby letters of credit issued by the Company are conditional commitments to guarantee the performance of a customer to a third party. Those letters of credit are primarily issued to support public and private borrowing arrangements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers. Collateral held varies and is required in instances which the Company deems necessary. At September 30, 2021 and December 31, 2020, the carrying amount of liabilities related to the Company’s obligation to perform under standby letters of credit was insignificant. The Company is subject in the normal course of business to various pending and threatened legal proceedings in which claims for monetary damages are asserted. Management, after consultation with legal counsel, does not anticipate that the aggregate ultimate liability arising out of litigation pending or threatened against the Company will be material to the Company’s consolidated financial position. On an on-going basis, the Company assesses any potential liabilities or contingencies in connection with such legal proceedings. For those matters where it is deemed probable that the Company will incur losses and the amount of the losses can be reasonably estimated, the Company would record an expense and corresponding liability in its consolidated financial statements.

Fair Value Disclosures

Fair Value Disclosures	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value Disclosures	Note 10. Fair Value Disclosures Determination of Fair Value: The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. In accordance with the “Fair Value Measurements and Disclosures” ASC Topic 820, the fair value of a financial instrument is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined based upon quoted market prices. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. ASC Topic 820 provides a consistent definition of fair value, which focuses on exit price in an orderly transaction between market participants at the measurement date under current market conditions. If there has been a significant decrease in the volume and level of activity for the asset or liability, a change in valuation technique or the use of multiple valuation techniques may be appropriate. In such instances, determining the price at which willing market participants would transact business at the measurement date under current market conditions depends on the facts and circumstances and requires the use of significant judgment. The fair value is a reasonable point within the range that is most representative of fair value under current market conditions. Fair Value Hierarchy: In accordance with this guidance, the Company groups its financial assets and financial liabilities generally measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. Level 1 Level 2 - Level 3 - A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Recurring Measurements of Fair Value: The tables below present the recorded amount of assets and liabilities measured at fair value on a recurring basis (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices in Significant Significant ​ ​ ​ ​ ​ Active Markets ​ Other ​ Other ​ ​ ​ ​ ​ for Identical ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Assets ​ Inputs ​ Inputs Description ​ Fair Value ​ (Level 1) ​ (Level 2) ​ (Level 3) September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities available-for-sale: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury ​ ​ 94,025 ​ ​ — ​ ​ 94,025 ​ ​ — U.S. Government-sponsored enterprises (GSEs) ​ $ 53,463 ​ $ — ​ $ 53,463 ​ $ — Municipal securities ​ 95,570 ​ — ​ 95,570 ​ — Other debt securities ​ 26,291 ​ — ​ 26,291 ​ — Mortgage-backed securities (GSEs) ​ 69,994 ​ — ​ 69,994 ​ — Total securities available-for-sale ​ $ 339,343 ​ $ — ​ $ 339,343 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Derivative financial instruments ​ $ 4,180 ​ $ — ​ $ 4,180 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ Assets: ​ ​ ​ ​ Securities available-for-sale: ​ ​ ​ ​ U.S. Government-sponsored enterprises (GSEs) ​ $ 30,530 ​ $ — ​ $ 30,530 ​ $ — Municipal securities ​ 91,989 ​ — ​ 91,989 ​ — Other debt securities ​ 25,118 ​ — ​ 25,118 ​ — Mortgage-backed securities (GSEs) ​ 67,997 ​ — ​ 67,997 ​ — Total securities available-for-sale ​ $ 215,634 ​ $ — ​ $ 215,634 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ Derivative financial instruments ​ $ 6,174 ​ ​ — ​ $ 6,174 ​ ​ — ​ During the nine months ending September 30, 2021, there were no transfers Level 1 Level 2 Securities available-for-sale Derivative financial instruments Assets Measured at Fair Value on a Nonrecurring Basis: ​ Under certain circumstances management adjusts fair value for assets and liabilities although they are not measured at fair value on an ongoing basis. The following tables present the financial instruments carried on the consolidated balance sheets by caption and by level in the fair value hierarchy, for which a nonrecurring change in fair value has been recorded (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices in Significant Significant ​ ​ ​ ​ ​ Active Markets ​ Other ​ Other ​ ​ ​ ​ ​ for Identical ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Assets ​ Inputs ​ Inputs ​ ​ Fair Value ​ (Level 1) ​ (Level 2) ​ (Level 3) September 30, 2021: ​ ​ ​ ​ Collateral dependent loans ​ $ 2,868 ​ $ — ​ $ — ​ $ 2,868 Other real estate owned ​ 2,415 ​ — ​ — ​ 2,415 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ Collateral dependent loans ​ $ 2,455 ​ $ — ​ $ — ​ $ 2,455 Other real estate owned ​ 4,619 ​ — ​ — ​ 4,619 ​ For Level 3 assets measured at fair value on a non-recurring basis, the significant unobservable inputs used in the fair value measurements are presented below (dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ Valuation ​ Significant Other ​ Average of ​ ​ ​ Fair Value ​ Technique ​ Unobservable Input ​ Input ​ September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Collateral dependent loans ​ $ 2,868 Appraisal Appraisal discounts 26 % Other real estate owned ​ 2,415 Appraisal Appraisal discounts 10 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Collateral dependent loans ​ $ 2,455 Appraisal Appraisal discounts 9 % Other real estate owned ​ 4,619 Appraisal Appraisal discounts 22 % ​ Collateral dependent loans: ​ Other real estate owned: Carrying value and estimated fair value: The carrying amount and estimated fair value of the Company’s financial instruments are as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements Using ​ Carrying ​ ​ ​ ​ ​ ​ Estimated ​ ​ Amount ​ Level 1 ​ Level 2 ​ Level 3 ​ Fair Value September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 1,091,160 $ 1,091,160 $ — $ — ​ $ 1,091,160 Securities available-for-sale ​ 339,343 ​ — ​ 339,343 ​ — ​ 339,343 Other investments ​ 14,972 ​ N/A ​ N/A ​ N/A ​ N/A Loans and leases, net and loans held for sale ​ 2,636,786 ​ — ​ — ​ 2,630,239 ​ 2,630,239 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Noninterest-bearing demand deposits ​ 977,180 ​ — ​ 977,180 ​ — ​ 977,180 Interest-bearing demand deposits ​ 847,007 ​ — ​ 847,007 ​ — ​ 847,007 Money market and savings deposits ​ 1,389,393 ​ — ​ 1,389,393 ​ — ​ 1,389,393 Time deposits ​ 585,692 ​ — ​ 587,954 ​ — ​ 587,954 Borrowings ​ ​ 88,748 ​ ​ — ​ ​ 89,669 ​ ​ — ​ ​ 89,669 Subordinated debt ​ 41,909 ​ — ​ — ​ 43,645 ​ 43,645 Derivative financial instruments ​ 4,180 ​ — ​ 4,180 ​ — ​ 4,180 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 481,719 $ 481,719 $ — $ — ​ $ 481,719 Securities available-for-sale ​ 215,634 ​ — ​ 215,634 ​ — ​ 215,634 Other investments ​ 14,794 ​ N/A ​ N/A ​ N/A ​ N/A Loans and leases, net and loans held for sale ​ 2,375,618 ​ — ​ — ​ 2,377,581 ​ 2,377,581 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Noninterest-bearing demand deposits ​ 685,957 ​ — ​ 685,957 ​ — ​ 685,957 Interest-bearing demand deposits ​ 649,129 ​ — ​ 649,129 ​ — ​ 649,129 Money market and savings deposits ​ 919,631 ​ — ​ 919,631 ​ — ​ 919,631 Time deposits ​ 550,498 ​ — ​ 554,120 ​ — ​ 554,120 Borrowings ​ ​ 81,199 ​ ​ — ​ ​ 82,892 ​ ​ — ​ ​ 82,892 Subordinated debt ​ 39,346 ​ — ​ — ​ 40,550 ​ 40,550 Derivative financial instruments ​ 6,174 ​ — ​ 6,174 ​ — ​ 6,174 ​ Limitations: Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates. Fair value estimates are based on existing on and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. Significant assets and liabilities that are not considered financial instruments include deferred income taxes and premises and equipment. In addition, the tax ramifications related to the realization of unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.

Derivatives Financial Instrumen

Derivatives Financial Instruments	9 Months Ended
	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives Financial Instruments	Note 11. Derivatives designated as fair value hedges: Financial derivatives are reported at fair value in other assets or other liabilities. The accounting for changes in the fair value of a derivative depends on whether it has been designated and qualifies as part of a hedging relationship. For derivative instruments that are designated and qualify as a fair value hedge, the gain or loss on the derivative net investment hedge instrument, as well as the offsetting gain or loss on the hedged asset or liability attributable to the hedged risk, are recognized in current earnings. The gain or loss on the derivative instrument is presented on the same income statement line item as the earnings effect of the hedged item. The Company utilizes interest rate swaps designated as fair value hedges to mitigate the effect of changing interest rates on the fair values of fixed rate tax-exempt callable securities available-for-sale. The hedging strategy on securities converts the fixed interest rates to LIBOR-based variable interest rates. These derivatives are designated as partial term hedges of selected cash flows covering specified periods of time prior to the call dates of the hedged securities. The Company has elected early adoption of ASU 2017-12, Derivatives and Hedging (Topic 815) - Targeted Improvements to Accounting for Hedging Activities, A summary of the Company’s fair value hedge relationships for the periods presented are as follows (dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ ​ ​ ​ Average ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance ​ Remaining ​ Weighted ​ ​ ​ ​ ​ ​ ​ ​ ​ Sheet ​ Maturity ​ Average ​ Receive ​ Notional ​ Estimated Liability derivatives ​ Location ​ (In Years) ​ Pay Rate ​ Rate ​ Amount ​ Fair Value September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements - securities Other liabilities 5.74 3.09 % 3 month LIBOR ​ $ 36,000 $ (4,180) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements - securities Other liabilities 7.13 3.08 % 3 month LIBOR ​ $ 36,000 ​ $ (6,174) ​ ​ The effects of the Company’s fair value hedge relationships reported in interest income on tax-exempt available-for-sale securities on the consolidated income statement were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 ​ 2020 ​ 2021 ​ 2020 Interest income on tax-exempt securities $ 549 ​ $ 565 ​ $ 1,675 ​ $ 1,586 Effects of fair value hedge relationships ​ (218) ​ (201) ​ (781) ​ (522) Reported interest income on tax-exempt securities ​ $ 331 ​ $ 364 ​ $ 894 ​ $ 1,064 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, Gain (loss) on fair value hedging relationship 2021 ​ 2020 ​ 2021 ​ 2020 Interest rate swap agreements - securities: ​ ​ ​ ​ ​ Hedged items $ 288 ​ $ 299 ​ $ 1,994 ​ $ (3,345) Derivative designated as hedging instruments ​ $ (288) ​ $ (299) ​ $ (1,994) ​ $ 3,345 ​ The following amounts were recorded on the balance sheet related to cumulative basis adjustments for fair value hedges (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cumulative Amount of Fair ​ ​ ​ ​ ​ Value Hedging Adjustment ​ ​ Carrying Amount ​ Included in Other Comprehensive Line item on the balance sheet of the Hedged Assets Income September 30, 2021: ​ ​ Securities available-for-sale $ 43,258 ​ $ 448 December 31, 2020: ​ ​ Securities available-for-sale ​ $ 44,017 ​ $ (1,063) ​ ​ Non-hedged derivatives: ​ During the second quarter of 2021, the Company initiated a loan hedging program to certain loan customers. Through this program, the Company originates a variable rate loan with the customer. The Company and the customer will then enter into a fixed interest rate swap. Lastly, an identical offsetting swap is entered into by the Company with a dealer bank. These “back-to-back” swap arrangements are intended to offset each other and allow the Company to book a variable rate loan, while providing the customer with a contract for fixed interest payments. In these arrangements, the Company’s net cash flow is equal to the interest income received from the variable rate loan originated with the customer. These customer swaps are not designated as hedging ​ At September 30, 2021 and December 31, 2020, interest rate swaps related to the Company’s loan hedging program that were outstanding are presented in the following table (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ December 31, 2020 ​ ​ ​ Notional ​ ​ Estimated ​ ​ Notional ​ ​ Estimated ​ ​ ​ Amount ​ ​ Fair Value ​ ​ Amount ​ ​ Fair Value Interest rate swap agreements: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets ​ $ 14,718 ​ $ 250 ​ $ - ​ $ - Liabilities ​ ​ 14,718 ​ ​ (250) ​ ​ - ​ ​ - Total ​ $ 29,436 ​ $ - ​ $ - ​ $ - ​ The Company establishes limits and monitors exposures for customer swap positions. Any fees received to enter the swap agreements at inception are recognized in earnings when received and is included in noninterest income. Such fees were as follows (in thousands) : ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 ​ 2020 ​ 2021 ​ 2020 Interest rate swap agreements $ 479 ​ $ — ​ $ 489 ​ $ — ​

Leases

Leases	9 Months Ended
	Sep. 30, 2021
Leases [Abstract]
Leases	Note 12. Leases A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. On January 1, 2019, the Company adopted ASU No. 2016-02 and all subsequent ASUs that modified this topic (collectively referred to as "Topic 842"). For the Company, Topic 842 primarily affected the accounting treatment for operating lease agreements in which the Company is the lessee. Substantially all of the leases in which the Company is the lessee are comprised of real estate for branches and office space with terms extending through 2034. All of our leases are classified as operating leases, and therefore, were previously not recognized on the Company’s consolidated balance sheet. With the adoption of Topic 842, operating lease agreements are required to be recognized on the consolidated balance sheet as a right-of-use (“ROU”) asset and a corresponding lease liability. The following table represents the consolidated balance sheet classification of the Company’s ROU assets and lease liabilities. The Company elected not to include short-term leases (i.e., leases with initial terms of twelve months or less), or equipment leases (deemed immaterial) on the consolidated balance sheet (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, ​ December 31, ​ ​ Classification ​ 2021 ​ 2020 Assets: ​ ​ ​ Operating lease right-of-use assets Other assets ​ $ 6,104 ​ $ 4,797 Liabilities: ​ ​ ​ Operating lease liabilities Other liabilities ​ $ 6,154 ​ $ 4,827 ​ The calculated amount of the ROU assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used to present value the minimum lease payments. The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If, at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. Regarding the discount rate, Topic 842 requires the use of the rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception, on a collateralized basis, over a similar term. For operating leases existing prior to January 1, 2019, the rate for the remaining lease term as of January 1, 2019, was used. As of September 30, 2021, the weighted average remaining lease term was 10.80 years and the weighted average discount rate was 2.39%. The following table represents lease costs and other lease information. As the Company elected, for all classes of underlying assets, not to separate lease and non-lease components and instead to account for them as a single lease component, the variable lease cost primarily represents variable payments such as common area maintenance (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 ​ 2020 ​ 2021 ​ 2020 Lease costs: ​ ​ ​ ​ ​ ​ ​ Operating lease costs ​ $ 270 ​ $ 272 ​ $ 764 ​ $ 779 Variable lease costs ​ 18 ​ 29 ​ 66 ​ 84 Total ​ $ 288 ​ $ 301 ​ $ 830 ​ $ 863 Other information: ​ ​ ​ ​ Cash paid for amounts included in the measurement of lease liabilities: ​ ​ ​ ​ Operating cash flows from operating leases ​ $ 257 ​ $ 264 ​ $ 740 ​ $ 759 ​ Future minimum payments for operating leases with initial or remaining terms of one year or more as of September 30, 2021, were as follows (in thousands) ​ ​ ​ ​ ​ ​ Amounts September 30, 2022 $ 253 September 30, 2023 ​ 985 September 30, 2024 ​ 744 September 30, 2025 ​ 528 September 30, 2026 ​ 515 Thereafter ​ 4,059 Total future minimum lease payments ​ 7,084 Amounts representing interest ​ (930) Present value of net future minimum lease payments ​ $ 6,154 ​

Regulatory Matters

Regulatory Matters	9 Months Ended
	Sep. 30, 2021
Banking and Thrift [Abstract]
Regulatory Matters	Note 13. Regulatory Matters Regulatory Capital Requirements: The final rules implementing the Basel Committee on Banking Supervision's capital guidelines for U.S. banks (Basel III rules) became effective January 1, 2015. In order to avoid restrictions on capital distributions and discretionary bonus payments to executives, under the new rules a covered banking organization is also required to maintain a “capital conservation buffer” in addition to its minimum risk-based capital requirements. This buffer is required to consist solely of common equity Tier 1, and the buffer applies to all three risk-based measurements (CET1, Tier 1 capital and total capital). As of January 1, 2019, an additional amount of Tier 1 common equity equal to 2.5% of risk-weighted assets is required for compliance with the capital conservation buffer. The ratios for the Company and the Bank are currently sufficient to satisfy the fully phased-in conservation buffer. At September 30, 2021, the Company and the Bank exceeded the minimum regulatory requirements and exceeded the threshold for the "well capitalized" regulatory classification. ​ Regulatory Restrictions on Dividends: Pursuant to Tennessee banking law, the Bank may not, without the prior consent of the Commissioner of the Tennessee Department of Financial Institutions (the “TDFI”), pay any dividends to the Company in a calendar year in excess of the total of the Bank’s retained net income for that year plus the retained net income for the preceding two years. Because this test involves a measure of net income, any charge on the Bank’s income statement, such as an impairment of goodwill, could impair the Bank’s ability to pay dividends to the Company. Under Tennessee corporate law, the Company is not permitted to pay dividends if, after giving effect to such payment, it would not be able to pay its debts as they become due in the usual course of business, or its total assets would be less than the sum of its total liabilities plus any amounts needed to satisfy any preferential rights if it were dissolving. In addition, in deciding whether to declare a dividend of any particular size, the Company’s board of directors must consider its and the Bank’s current and prospective capital, liquidity, and other needs. In addition to state law limitations on the Company’s ability to pay dividends, the Federal Reserve imposes limitations on the Company’s ability to pay dividends. Federal Reserve regulations limit dividends, stock repurchases and discretionary bonuses to executive officers if the Company’s regulatory capital is below the level of regulatory minimums plus the applicable capital conservation buffer. During the three months ended September 30, 2021, the Bank did not pay a dividend to the Company and the Company paid a quarterly common stock dividend of $0.06 per share. During the nine months ended September 30, 2021, the Bank paid $10.0 million in dividends to the Company. Since the first quarter of 2021, the Company has paid a quarterly common stock dividend of $0.06 per share. The amount and timing of all future dividend payments by the Company, if any, is subject to discretion of the Company’s board of directors and will depend on the Company’s earnings, capital position, financial condition and other factors, including new regulatory capital requirements, as they become known to the Company. Regulatory Capital Levels: Actual and required capital levels at September 30, 2021, and December 31, 2020 are presented below (dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Minimum to be ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ well ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ capitalized under ​ ​ ​ ​ ​ ​ ​ ​ Minimum for ​ prompt ​ ​ ​ ​ ​ ​ ​ ​ capital ​ corrective action ​ ​ ​ ​ Actual ​ adequacy purposes ​ provisions 1 ​ ​ Amount Ratio Amount Ratio Amount Ratio ​ September 30, 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartFinancial: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 381,766 12.92 % $ 236,367 8.00 % ​ N/A N/A ​ Tier 1 Capital (to Risk Weighted Assets) ​ 320,562 10.85 % 177,275 6.00 % ​ N/A N/A ​ Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 320,562 10.85 % 132,956 4.50 % ​ N/A N/A ​ Tier 1 Capital (to Average Assets) 2 ​ 320,562 8.36 % 153,417 4.00 % ​ N/A N/A ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartBank: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 371,740 12.59 % $ 236,244 8.00 % $ 295,304 10.00 % Tier 1 Capital (to Risk Weighted Assets) ​ 352,445 11.94 % 177,183 6.00 % 236,244 8.00 % Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 352,445 11.94 % 132,887 4.50 % 191,948 6.50 % Tier 1 Capital (to Average Assets) 2 ​ 352,445 9.20 % 153,185 4.00 % 191,481 5.00 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartFinancial: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 329,431 14.07 % $ 187,303 8.00 % N/A N/A ​ Tier 1 Capital (to Risk Weighted Assets) ​ 271,739 11.61 % 140,477 6.00 % N/A N/A ​ Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 271,739 11.61 % 105,358 4.50 % N/A N/A ​ Tier 1 Capital (to Average Assets) ​ 271,739 8.70 % 125,002 4.00 % N/A N/A ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartBank: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 317,660 13.57 % $ 187,294 8.00 % $ 234,117 10.00 % Tier 1 Capital (to Risk Weighted Assets) ​ 299,314 12.78 % 140,470 6.00 % 187,294 8.00 % Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 299,314 12.78 % 105,353 4.50 % 152,176 6.50 % Tier 1 Capital (to Average Assets) ​ 299,314 9.58 % 124,969 4.00 % 156,212 5.00 % 1 2

Other comprehensive income (los

Other comprehensive income (loss)	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Other comprehensive income (loss)	Note 14. Other Comprehensive Income (Loss) The changes in each component of accumulated other comprehensive income (loss), net of tax, were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, 2021 ​ ​ ​ ​ ​ Accumulated ​ ​ Securities ​ Fair Value ​ Other ​ ​ Available-for- ​ Municipal ​ Comprehensive ​ Sale Security Hedges Income (Loss) Beginning balance, June 30, 2021 $ 2,051 ​ $ 287 ​ $ 2,338 ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income ​ 210 ​ 44 ​ 254 Reclassification of amounts included in net income ​ (33) ​ — ​ (33) Net other comprehensive income during period ​ 177 ​ 44 ​ 221 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, September 30, 2021 ​ $ 2,228 ​ $ 331 ​ $ 2,559 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, 2020 ​ ​ ​ ​ ​ Accumulated ​ ​ Securities ​ Fair Value ​ Other ​ ​ Available-for- ​ Municipal ​ Comprehensive ​ Sale Security Hedges Income (Loss) Beginning balance, June 30, 2020 ​ $ 2,668 ​ $ (2,076) ​ $ 592 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income ​ (65) ​ 492 ​ 427 Reclassification of amounts included in net income ​ (7) ​ — ​ (7) Net other comprehensive income during period ​ (72) ​ 492 ​ 420 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, September 30, 2020 ​ $ 2,596 ​ $ (1,584) ​ $ 1,012 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, 2021 ​ ​ ​ ​ ​ Accumulated ​ ​ Securities ​ Fair Value ​ Other ​ ​ Available-for- ​ Municipal ​ Comprehensive ​ Sale Security Hedges Income (Loss) Beginning balance, December 31, 2020 $ 2,968 ​ $ (785) ​ $ 2,183 ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) ​ (707) ​ 1,116 ​ 409 Reclassification of amounts included in net income ​ (33) ​ — ​ (33) Net other comprehensive income (loss) during period ​ (740) ​ 1,116 ​ 376 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, September 30, 2021 ​ $ 2,228 ​ $ 331 ​ $ 2,559 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, 2020 ​ ​ ​ ​ ​ Accumulated ​ ​ Securities ​ Fair Value ​ Other ​ ​ Available-for- ​ Municipal ​ Comprehensive ​ Sale Security Hedges Income (Loss) Beginning balance, December 31, 2019 ​ $ 391 ​ $ (223) ​ $ 168 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) ​ 2,201 ​ (1,361) ​ 840 Reclassification of amounts included in net income ​ 4 ​ — ​ 4 Net other comprehensive income (loss) during period ​ 2,205 ​ (1,361) ​ 844 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, September 30, 2020 ​ $ 2,596 ​ $ (1,584) ​ $ 1,012 ​

Presentation of Financial Inf_2

Presentation of Financial Information (Policies)	9 Months Ended
	Sep. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business	Nature of Business: SmartFinancial, Inc. (the "Company" or “SmartFinancial”) is a bank holding company whose principal activity is the ownership and management of its wholly owned subsidiary, SmartBank (the "Bank"). The Company provides a variety of financial services to individuals and corporate customers through its offices in East and Middle Tennessee, Alabama, and the Florida Panhandle. The Bank’s primary deposit products are noninterest-bearing and interest-bearing demand deposits, savings and money market deposits, and time deposits. Its primary lending products are commercial, residential, and consumer loans.
Basis of Presentation and Accounting Estimates	Basis of Presentation and Accounting Estimates: The accounting and financial reporting policies of the Company and its wholly owned subsidiary conform to U.S. generally accepted accounting principles (“GAAP”) and reporting guidelines of banking regulatory authorities and regulators. The accompanying interim consolidated financial statements for the Company and its wholly owned subsidiary have not been audited. All material intercompany balances and transactions have been eliminated. In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying financial statements have been made. These adjustments are normal and recurring accruals considered necessary for a fair and accurate presentation. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan and lease losses, the valuation of foreclosed assets and deferred taxes, other than temporary impairments of securities, the fair value of financial instruments, goodwill, and the fair value of assets acquired, and liabilities assumed in acquisitions. The results for interim periods are not necessarily indicative of results for the full year or any other interim periods. The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in the Company’s annual report on Form 10-K for the year ended December 31, 2020.
Recently Issued Not Yet Effective Accounting Pronouncements	Recently Issued and Adopted Accounting Pronouncements: In December 2019, the FASB issued ASU No. 2019-12, “Simplifying the Accounting for Income Taxes.” Recently Issued Not Yet Effective Accounting Pronouncements: During interim periods, the Company follows the accounting policies set forth in its annual audited financial statements for the year ended December 31, 2020, as filed in its Annual Report on Form 10-K with the Securities and Exchange Commission ("SEC"). The following is a summary of recent authoritative pronouncements issued but not yet effective that could impact the accounting, reporting, and/or disclosure of financial information by the Company. In October 2019, the Financial Accounting Standards Board approved a delay for the implementation of ASU 2016-13, Financial Instruments - Credit Losses periods within those fiscal years. For calendar-year-end companies that are not SRCs, this will be January 1, 2020. The determination of whether an entity is an SRC will be based on an entity’s most recent assessment in accordance with SEC regulations and the Company meets the regulations as an SRC. For SRCs and other entities, the Board decided that CECL will be effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. For all entities, early adoption will continue to be permitted; that is, early adoption is allowed for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years (that is, effective January 1, 2019, for calendar-year-end companies). The Company does not plan to adopt this standard early and being that the Company is an SRC, adoption is required for fiscal years beginning after December 15, 2022. In March 2020, the FASB issued ASU 2020-04 , Reference Rate Reform (Topic 848):
Operating, Accounting and Reporting Considerations related to COVID-19	Operating, Accounting and Reporting Considerations related to COVID-19: The COVID-19 pandemic has negatively impacted the global economy. In response to this crisis, the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was passed by Congress and signed into law on March 27, 2020. The CARES Act provides an estimated $2.2 trillion to fight the COVID-19 pandemic and stimulate the economy by supporting individuals and businesses through loans, grants, tax changes, and other types of relief. Some of the provisions applicable to the Company include, but are not limited to: ● Accounting for Loan Modifications – Section 4013 of the CARES Act provides that a financial institution may elect to suspend (1) the requirements under GAAP for certain loan modifications that would otherwise be categorized as a TDR, and (2) any determination that such loan modifications would be considered a TDR, including the related impairment for accounting purposes. See Note 5 - Loans and Leases and Allowance for Loan and Lease Losses for more information. ● Paycheck Protection Program - The CARES Act established the Paycheck Protection Program (“PPP”), an expansion of the Small Business Administration’s (“SBA”) 7(a) loan program and the Economic Injury Disaster Loan Program (“EIDL”), administered directly by the SBA. On December 27, 2020, the Consolidated Appropriations Act, 2021 (“CAA”) was signed into law. The CAA provides several amendments to the PPP, including additional funding for first and second draws of PPP loans up to March 31, 2021. On March 30, 2021, the PPP Extension Act of 2021 was signed into law, which extends the program to May 31, 2021. The Company is a participant in the PPP. See Note 5 - Loans and Leases and Allowance for Loan and Lease Losses for more information. Also in response to the COVID-19 pandemic, the Board of Governors of the Federal Reserve System (“FRB”), the Federal Deposit Insurance Corporation (“FDIC”), the National Credit Union Administration (“NCUA”), the Office of the Comptroller of the Currency (“OCC”), and the Consumer Financial Protection Bureau (“CFPB”), in consultation with the state financial regulators (collectively, the “agencies”) issued a joint interagency statement (issued March 22, 2020; revised statement issued April 7, 2020). Some of the provisions applicable to the Company include, but are not limited to: ● Accounting for Loan Modifications - Loan modifications that do not meet the conditions of the CARES Act may still qualify as a modification that does not need to be accounted for as a TDR. The agencies confirmed with FASB staff that short-term modifications made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief are not TDRs. This includes short-term (e.g., six months) modifications such as payment deferrals, fee waivers, extensions of repayment terms, or insignificant delays in payment. See Note 5 - Loans and Leases and Allowance for Loan and Lease Losses for more information. ● Past Due Reporting - Regarding loans not otherwise reportable as past due, financial institutions are not expected to designate loans with deferrals granted due to COVID-19 as past due because of the deferral. A loan’s payment date is governed by the due date stipulated in the legal agreement. If a financial institution agrees to a payment deferral, these loans would not be considered past due during the period of the deferral. ● Nonaccrual Status and Charge-offs - During short-term COVID-19 modifications, these loans generally should not be reported as nonaccrual. The Company began offering short-term loan modifications to assist borrowers during the COVID-19 national emergency. The Company offered deferral options of: 1) three months deferral of payment and then three months of interest only, 2) three months of interest only, 3) three months deferral of payment, 4) six months of interest only. These modifications generally meet the criteria of both Section 4013 of the CARES Act and the joint interagency statement, and therefore, the Company does not account for such loan modifications as TDRs. On August 3, 2020, the Federal Financial Institutions Examination Council on behalf of its members (collectively “the FFIEC members”) issued a joint statement on additional loan accommodations related to COVID-19. The joint statement clarifies that for loan modifications in which Section 4013 is being applied, subsequent modifications could also be eligible under Section 4013. To be eligible, each loan modification must be (1) related to the COVID event; (2) executed on a loan that was not more than 30 days past due as of December 31, 2019; and (3) executed between March 1, 2020, and the earlier of (A) 60 days after the date of termination of the National Emergency or (B) December 31, 2020. The December 31, 2020, deadline was subsequently extended to January 1, 2022, by the CAA. All of the Company’s loan modifications granted under Section 4013 of the CARES Act are in compliance with the aforementioned FFIEC requirements. Accordingly, the Company does not account for such loan modifications as TDRs. ​
Reclassifications	Reclassifications: Certain captions and amounts in the 2020 consolidated financial statements were reclassified to conform to the 2021 financial statement presentation. These reclassifications had no impact on net income or shareholders’ equity as previously reported.
Earnings Per Share	Basic earnings per common share is computed by dividing net income available to common shareholders by the weighted-average number of common shares outstanding. Diluted earnings per common share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding and dilutive common share equivalents using the treasury stock method. Dilutive common share equivalents include common shares issuable upon exercise of outstanding stock options and restricted stock.

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Sep. 30, 2021
Sevier County Bancshares Inc [Member]
Business Acquisition [Line Items]
Schedule of Business Acquisitions	The purchased assets and assumed liabilities were recorded at their acquisition date fair values (1) and are summarized in the table below (in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Initial ​ ​ ​ ​ ​ ​ ​ As recorded Fair value ​ Subsequent As recorded ​ ​ by SCB ​ adjustments ​ Adjustments ​ by the Company Assets: ​ ​ ​ ​ ​ ​ Cash & cash equivalents ​ $ 84,313 ​ $ — ​ $ — ​ $ 84,313 Investment securities available-for-sale ​ 64,219 ​ (614) ​ ​ — ​ 63,605 Restricted investments ​ 533 ​ — ​ ​ — ​ 533 Loans ​ 304,620 ​ (4,551) ​ ​ — ​ 300,069 Allowance for loan losses ​ (3,644) ​ 3,644 ​ ​ — ​ — Premises and equipment, net ​ 15,579 ​ (295) ​ ​ — ​ 15,284 Bank owned life insurance ​ 7,116 ​ — ​ ​ — ​ 7,116 Deferred tax asset, net ​ 10,340 ​ (4,007) ​ ​ — ​ 6,333 Core deposit intangible ​ — ​ 1,550 ​ ​ — ​ 1,550 Interest Receivable ​ 884 ​ — ​ ​ — ​ 884 Other assets ​ 920 ​ (272) ​ ​ — ​ 648 Total assets acquired ​ $ 484,880 ​ $ (4,545) ​ $ — ​ $ 480,335 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Deposits ​ $ 435,036 ​ $ — ​ ​ — ​ $ 435,036 Time deposit premium ​ — ​ 888 ​ ​ — ​ 888 Subordinated debt ​ ​ 2,500 ​ ​ — ​ ​ — ​ ​ 2,500 Payables and other liabilities ​ 5,563 ​ 115 ​ ​ — ​ 5,678 Total liabilities assumed ​ 443,099 ​ 1,003 ​ — ​ 444,102 Excess of assets acquired over liabilities assumed ​ $ 41,781 ​ ​ ​ ​ ​ Aggregate fair value adjustments ​ ​ $ (5,548) ​ $ — ​ Total identifiable net assets ​ ​ ​ ​ ​ ​ 36,233 Consideration transferred: ​ ​ ​ ​ ​ ​ Cash ​ ​ ​ ​ ​ ​ 9,568 Common stock issued ( ​ ​ ​ ​ ​ ​ 42,254 Total fair value of consideration transferred ​ ​ ​ ​ ​ ​ 51,822 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Goodwill ​ ​ ​ ​ ​ ​ $ 15,589 (1)
Loans Acquired in Acquisition	The following table presents additional information related to the purchased credit impaired loans (ASC 310-30) of the acquired loan portfolio at the acquisition date (in thousands) ​ ​ ​ ​ ​ September 1, 2021 Accounted for pursuant to ASC 310-30: ​ Contractually required principal and interest ​ $ 25,932 Non-accretable differences ​ 4,203 Cash flows expected to be collected ​ 21,729 Accretable yield ​ 3,480 Fair value ​ $ 18,249
Business Acquisition, Pro Forma Information	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ Revenue Net Income ​ Revenue Net Income 2021: ​ ​ ​ ​ ​ ​ ​ ​ Actual SCB results included in statement of income since acquisition date ​ $ 1,090 ​ $ 343 ​ $ 1,090 ​ $ 343 Supplemental consolidation pro-forma as if SCB had been acquired January 1, 2021 ​ 39,207 ​ 10,516 ​ 110,745 ​ 30,984 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020: ​ ​ ​ ​ Supplemental consolidation pro-forma as if SCB had been acquired January 1, 2020 ​ $ 32,965 ​ $ 6,624 ​ $ 93,213 ​ $ 16,473
Fountain [Member]
Business Acquisition [Line Items]
Schedule of Business Acquisitions	The purchased assets and assumed liabilities were recorded at their acquisition date fair values (1) and are summarized in the table below (in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As recorded Fair value ​ Subsequent As recorded ​ ​ by Fountain ​ adjustments ​ Adjustments ​ by the Company Assets: ​ ​ ​ ​ ​ ​ Cash & cash equivalents ​ $ 413 ​ $ — ​ $ — ​ $ 413 Leases ​ 54,945 ​ (720) ​ ​ — ​ 54,225 Allowance for lease losses ​ (1,796) ​ 1,796 ​ ​ — ​ — Customer list intangible ​ — ​ 2,658 ​ ​ — ​ 2,658 Other repossessed assets ​ 319 ​ — ​ ​ — ​ 319 Other assets ​ 233 ​ — ​ ​ — ​ 233 Total assets acquired ​ $ 54,114 ​ $ 3,734 ​ $ — ​ $ 57,848 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Payables and other liabilities ​ 683 ​ (229) ​ ​ — ​ 454 Total liabilities assumed ​ 683 ​ (229) ​ — ​ 454 Excess of assets acquired over liabilities assumed ​ $ 53,431 ​ ​ ​ ​ ​ Aggregate fair value adjustments ​ ​ $ 3,963 ​ $ — ​ Total identifiable net assets ​ ​ ​ ​ ​ ​ 57,394 Consideration transferred: ​ ​ ​ ​ ​ ​ Cash ​ ​ ​ ​ ​ ​ 59,794 Total fair value of consideration transferred ​ ​ ​ ​ ​ ​ 59,794 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Goodwill ​ ​ ​ ​ ​ ​ $ 2,400 (1) Fair values are preliminary and are subject to refinement for a period of one year after the closing date of an acquisition as information relative to the closing date fair value becomes available. ​
Loans Acquired in Acquisition	The following table presents additional information related to the purchased credit impaired financing leases (ASC 310-30) of the acquired lease portfolio at the acquisition date (in thousands) ​ ​ ​ ​ ​ May 3, 2021 Accounted for pursuant to ASC 310-30: ​ Contractually required principal and interest ​ $ 6,018 Non-accretable differences ​ 447 Cash flows expected to be collected ​ 5,571 Accretable yield ​ 649 Fair value ​ $ 4,922
Business Acquisition, Pro Forma Information	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ Revenue Net Income ​ Revenue Net Income 2021: ​ ​ ​ ​ ​ ​ ​ ​ Actual Fountain results included in statement of income since acquisition date ​ $ 1,696 ​ $ 357 ​ $ 2,834 ​ $ 702 Supplemental consolidation pro-forma as if Fountain had been acquired January 1, 2021 ​ 36,690 ​ 9,614 ​ 102,470 ​ 28,101 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020: ​ ​ ​ ​ Supplemental consolidation pro-forma as if Fountain had been acquired January 1, 2020 ​ $ 31,566 ​ $ 6,744 ​ $ 89,016 ​ $ 16,274
Progressive Financial Group Inc. [Member]
Business Acquisition [Line Items]
Schedule of Business Acquisitions	The purchased assets and assumed liabilities were recorded at their acquisition date fair values and are summarized in the table below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Initial ​ ​ ​ ​ ​ ​ ​ As recorded Fair value ​ Subsequent As recorded ​ ​ by PFG ​ adjustments ​ Adjustments ​ by the Company Assets: ​ ​ ​ ​ ​ ​ Cash & cash equivalents ​ $ 55,971 ​ $ — ​ $ — ​ $ 55,971 Investment securities available-for-sale ​ 27,054 ​ 203 ​ ​ — ​ 27,257 Restricted investments ​ 692 ​ — ​ ​ — ​ 692 Loans ​ 191,672 ​ (3,691) ​ ​ — ​ 187,981 Allowance for loan losses ​ (2,832) ​ 2,832 ​ ​ — ​ — Premises and equipment, net ​ 15,681 ​ (2,919) ​ ​ — ​ 12,762 Bank owned life insurance ​ 5,560 ​ — ​ ​ — ​ 5,560 Deferred tax asset, net ​ — ​ 813 ​ ​ 193 ​ 1,006 Intangibles ​ — ​ 1,370 ​ ​ 1,127 ​ 2,497 Other real estate owned ​ 3,695 ​ (100) ​ ​ (1,862) ​ 1,733 Interest Receivable ​ 1,061 ​ (280) ​ ​ — ​ 781 Prepaids ​ 375 ​ (174) ​ ​ — ​ 201 Goodwill ​ 231 ​ (231) ​ ​ — ​ — Other assets ​ 1,881 ​ — ​ ​ — ​ 1,881 Total assets acquired ​ $ 301,041 ​ $ (2,177) ​ $ (542) ​ $ 298,322 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Deposits ​ $ 271,276 ​ $ — ​ ​ — ​ $ 271,276 Time deposit premium ​ — ​ 729 ​ ​ — ​ 729 Payables and other liabilities ​ 776 ​ — ​ ​ — ​ 776 Total liabilities assumed ​ 272,052 ​ 729 ​ — ​ 272,781 Excess of assets acquired over liabilities assumed ​ $ 28,989 ​ ​ ​ ​ ​ Aggregate fair value adjustments ​ ​ $ (2,906) ​ $ (542) ​ Total identifiable net assets ​ ​ ​ ​ ​ ​ 25,541 Consideration transferred: ​ ​ ​ ​ ​ ​ Cash ​ ​ ​ ​ ​ ​ 9,838 Common stock issued ( ​ ​ ​ ​ ​ ​ 24,547 Total fair value of consideration transferred ​ ​ ​ ​ ​ ​ 34,385 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Goodwill ​ ​ ​ ​ ​ ​ $ 8,844
Loans Acquired in Acquisition	The following table presents additional information related to the purchased credit impaired loans (ASC 310-30) of the acquired loan portfolio at the acquisition date (in thousands) ​ ​ ​ ​ ​ ​ March 1, 2020 Accounted for pursuant to ASC 310-30: ​ Contractually required principal and interest ​ $ 21,107 Non-accretable differences ​ 4,706 Cash flows expected to be collected ​ 16,401 Accretable yield ​ 2,515 Fair value ​ $ 13,886

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 2020 ​ 2021 2020 Basic earnings per share computation: ​ ​ ​ ​ ​ Net income available to common shareholders ​ $ 9,600 ​ $ 6,395 ​ $ 28,134 ​ $ 15,302 Average common shares outstanding – basic ​ 15,557,528 ​ 15,160,579 ​ 15,192,919 ​ 14,903,757 Basic earnings per share ​ $ 0.62 ​ $ 0.42 ​ $ 1.85 ​ $ 1.03 Diluted earnings per share computation: ​ ​ ​ ​ Net income available to common shareholders ​ $ 9,600 ​ $ 6,395 ​ $ 28,134 ​ $ 15,302 Average common shares outstanding – basic ​ 15,557,528 ​ 15,160,579 ​ 15,192,919 ​ 14,903,757 Incremental shares from assumed conversions: ​ ​ ​ ​ Stock options and restricted stock ​ 133,598 ​ 50,032 ​ 119,836 ​ 61,698 Average common shares outstanding - diluted ​ 15,691,126 ​ 15,210,611 ​ 15,312,755 ​ 14,965,455 Diluted earnings per common share ​ $ 0.61 ​ $ 0.42 ​ $ 1.84 ​ $ 1.02

Securities (Tables)

Securities (Tables)	9 Months Ended
	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities Reconciliation	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ ​ Gross Gross ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair ​ ​ Cost ​ Gains ​ Losses ​ Value U.S. Treasury ​ $ 93,910 ​ $ 176 ​ $ (61) ​ $ 94,025 U.S. Government-sponsored enterprises (GSEs) ​ ​ 54,175 ​ ​ 201 ​ ​ (913) ​ ​ 53,463 Municipal securities ​ 93,422 ​ 2,179 ​ (31) ​ 95,570 Other debt securities ​ 25,996 ​ 367 ​ (72) ​ 26,291 Mortgage-backed securities (GSEs) ​ 68,837 ​ 1,339 ​ (182) ​ 69,994 Total ​ $ 336,340 ​ $ 4,262 ​ $ (1,259) ​ $ 339,343 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ Gross Gross ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair ​ ​ Cost ​ Gains ​ Losses ​ Value U.S. Government-sponsored enterprises (GSEs) ​ $ 30,526 ​ $ 10 ​ $ (6) ​ $ 30,530 Municipal securities ​ 89,644 ​ 2,345 ​ — ​ 91,989 Other debt securities ​ 25,019 ​ 112 ​ (13) ​ 25,118 Mortgage-backed securities (GSEs) ​ 66,425 ​ 1,754 ​ (182) ​ 67,997 Total ​ $ 211,614 ​ $ 4,221 ​ $ (201) ​ $ 215,634 ​
Proceeds from sale of securities available for sale, gains losses and proceeds from redemption	Proceeds from sale of securities available-for-sale, gross gains and gross losses on sales and redemptions for the three and nine months ended September 30, 2021, and 2020 were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 2020 ​ 2021 2020 Proceeds from sales ​ $ 16,771 ​ $ 4,884 ​ $ 16,771 ​ $ 11,759 Gross gains ​ $ 64 ​ $ 17 ​ $ 64 ​ $ 43 Gross losses ​ $ (19) ​ $ (26) ​ $ (19) ​ $ (37) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Proceeds from maturities and calls ​ $ 32,275 ​ $ 30,350 ​ $ 43,551 ​ $ 45,800
Investments Classified by Contractual Maturity Date	The amortized cost and estimated fair value of securities at September 30, 2021, by contractual maturity for non-mortgage backed securities are shown below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ Amortized Fair ​ ​ Cost ​ Value Due in one year or less ​ $ 61,259 ​ $ 61,267 Due from one year to five years ​ 3,817 ​ 3,843 Due from five years to ten years ​ 90,688 ​ 91,409 Due after ten years ​ 111,739 ​ 112,830 ​ ​ 267,503 ​ 269,349 Mortgage-backed securities ​ 68,837 ​ 69,994 Total ​ $ 336,340 ​ $ 339,343 ​
Schedule of Unrealized Loss on Investments	​ The following tables present the gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities available-for-sale have been in a continuous unrealized loss position (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ Less than 12 Months ​ 12 Months or Greater ​ Total ​ ​ ​ Gross ​ Number ​ ​ Gross ​ Number ​ ​ Gross ​ Number ​ ​ Fair ​ Unrealized ​ of ​ Fair ​ Unrealized ​ of ​ Fair ​ Unrealized ​ of ​ ​ Value ​ Losses ​ Securities ​ Value ​ Losses ​ Securities ​ Value ​ Losses ​ Securities U.S. Treasury ​ $ 76,626 ​ $ (61) ​ 4 ​ $ — ​ $ — ​ — ​ $ 76,626 ​ $ (61) ​ 4 U.S. Government-sponsored enterprises (GSEs) ​ ​ 37,469 ​ ​ (910) ​ 10 ​ ​ 841 ​ ​ (3) ​ 3 ​ ​ 38,310 ​ ​ (913) ​ 13 Municipal securities ​ 3,929 ​ (31) ​ 3 ​ — ​ — ​ — ​ 3,929 ​ (31) ​ 3 Other debt securities ​ 5,982 ​ (72) ​ 6 ​ — ​ — ​ — ​ 5,982 ​ (72) ​ 6 Mortgage-backed securities (GSEs) ​ 8,891 ​ (59) ​ 8 ​ 8,780 ​ (123) ​ 6 ​ 17,671 ​ (182) ​ 14 Total ​ $ 132,897 ​ $ (1,133) ​ 31 ​ $ 9,621 ​ $ (126) ​ 9 ​ $ 142,518 ​ $ (1,259) ​ 40 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ Less than 12 Months ​ 12 Months or Greater ​ Total ​ ​ ​ Gross ​ Number ​ ​ Gross ​ Number ​ ​ Gross ​ Number ​ ​ Fair ​ Unrealized ​ of ​ Fair ​ Unrealized ​ of ​ Fair ​ Unrealized ​ of ​ ​ Value ​ Losses ​ Securities ​ Value ​ Losses ​ Securities ​ Value ​ Losses ​ Securities U.S. Government-sponsored enterprises (GSEs) ​ $ 15,510 ​ $ (5) ​ 3 ​ $ 132 ​ $ (1) ​ 1 ​ $ 15,642 ​ $ (6) ​ 4 Other debt securities ​ 1,495 ​ (5) ​ 1 ​ 977 ​ (8) ​ 1 ​ 2,472 ​ (13) ​ 2 Mortgage-backed securities (GSEs) ​ 9,790 ​ (87) ​ 6 ​ 6,083 ​ (95) ​ 3 ​ 15,873 ​ (182) ​ 9 Total ​ $ 26,795 ​ $ (97) ​ 10 ​ $ 7,192 ​ $ (104) ​ 5 ​ $ 33,987 ​ $ (201) ​ 15 ​
Schedule of Other Investments	The following is the amortized cost and carrying value of other investments (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, ​ December 31, ​ 2021 2020 Federal Reserve Bank stock ​ $ 8,171 $ 8,606 Federal Home Loan Bank stock ​ 6,451 ​ 5,838 First National Bankers Bank stock ​ 350 ​ 350 Total ​ $ 14,972 ​ $ 14,794 ​

Loans and Leases and Allowanc_2

Loans and Leases and Allowance for Loan and Lease Losses (Tables)	9 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Schedule of Loans	Major categories of loans and leases are summarized as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ December 31, 2020 ​ ​ PCI ​ All Other ​ ​ ​ ​ PCI ​ All Other ​ ​ ​ ​ Loans and Leases 1 Loans and Leases Total Loans and Leases 1 Loans and Leases Total Commercial real estate ​ $ 23,156 ​ $ 1,290,091 ​ $ 1,313,247 ​ $ 16,123 ​ $ 996,853 ​ $ 1,012,976 Consumer real estate ​ 10,863 ​ 467,298 ​ 478,161 ​ 10,258 ​ 433,672 ​ 443,930 Construction and land development ​ 2,904 ​ 323,470 ​ 326,374 ​ 5,348 ​ 272,727 ​ 278,075 Commercial and industrial ​ 2,871 ​ 466,868 ​ 469,739 ​ 308 ​ 634,138 ​ 634,446 Leases ​ ​ 3,748 ​ ​ 49,648 ​ ​ 53,396 ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ 87 ​ 11,659 ​ 11,746 ​ 27 ​ 12,789 ​ 12,816 Total loans and leases ​ 43,629 ​ 2,609,034 ​ 2,652,663 ​ 32,064 ​ 2,350,179 ​ 2,382,243 Less: Allowance for loan and lease losses ​ (427) ​ (18,868) ​ (19,295) ​ (309) ​ (18,037) ​ (18,346) Loans and leases, net ​ $ 43,202 ​ $ 2,590,166 ​ $ 2,633,368 ​ $ 31,755 ​ $ 2,332,142 ​ $ 2,363,897 1 ​
Schedule of Impaired and Performing Loans Receivable	​ The composition of loans and leases by loan classification for performing, impaired and PCI loan and leases status is summarized in the tables below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Real Estate ​ Development ​ Industrial ​ Leases ​ and Other ​ Total September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans and leases $ 1,289,233 ​ $ 464,881 ​ $ 323,470 ​ $ 466,769 ​ $ 49,648 ​ $ 11,659 ​ $ 2,605,660 Impaired loans and leases ​ 858 ​ 2,417 ​ — ​ 99 ​ — ​ — ​ 3,374 ​ ​ 1,290,091 ​ 467,298 ​ 323,470 ​ 466,868 ​ 49,648 ​ 11,659 ​ 2,609,034 PCI loans and leases ​ 23,156 ​ 10,863 ​ 2,904 ​ 2,871 ​ 3,748 ​ 87 ​ 43,629 Total loans and leases ​ $ 1,313,247 ​ $ 478,161 ​ $ 326,374 ​ $ 469,739 ​ $ 53,396 ​ $ 11,746 ​ $ 2,652,663 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans and leases $ 992,982 ​ $ 432,356 ​ $ 272,727 ​ $ 633,992 ​ $ — ​ $ 12,789 ​ $ 2,344,846 Impaired loans and leases ​ 3,871 ​ 1,316 ​ — ​ 146 ​ — ​ — ​ 5,333 ​ ​ 996,853 ​ 433,672 ​ 272,727 ​ 634,138 ​ — ​ 12,789 ​ 2,350,179 PCI loans and leases ​ 16,123 ​ 10,258 ​ 5,348 ​ 308 ​ — ​ 27 ​ 32,064 Total loans and leases ​ $ 1,012,976 ​ $ 443,930 ​ $ 278,075 ​ $ 634,446 ​ $ — ​ $ 12,816 ​ $ 2,382,243 ​
Schedule of Allowance for Loan Losses for Impaired and Performing Loans Receivable	The following tables show the allowance for loan and lease losses allocation by loan and lease classification for impaired, PCI, and performing (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ ​ ​ ​ and ​ ​ ​ ​ ​ Real Estate ​ Real Estate ​ Development ​ Industrial ​ Leases ​ Other ​ Total September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans and leases $ 8,927 $ 3,316 $ 2,218 $ 3,493 $ 225 $ 103 $ 18,282 Impaired loans and leases ​ 417 ​ 70 ​ — ​ 99 ​ — ​ — ​ 586 ​ ​ 9,344 ​ 3,386 ​ 2,218 ​ 3,592 ​ 225 ​ 103 ​ 18,868 PCI loans and leases ​ 61 ​ 155 ​ — ​ 209 ​ — ​ 2 ​ 427 Total loans and leases ​ $ 9,405 ​ $ 3,541 ​ $ 2,218 ​ $ 3,801 ​ $ 225 ​ $ 105 ​ $ 19,295 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans and leases $ 7,579 $ 3,267 $ 2,076 $ 4,768 ​ $ — $ 110 $ 17,800 Impaired loans and leases ​ — ​ 116 ​ — ​ 121 ​ — ​ — ​ 237 ​ ​ 7,579 ​ 3,383 ​ 2,076 ​ 4,889 ​ — ​ 110 ​ 18,037 PCI loans and leases ​ — ​ 88 ​ — ​ 218 ​ — ​ 3 ​ 309 Total loans and leases ​ $ 7,579 ​ $ 3,471 ​ $ 2,076 ​ $ 5,107 ​ $ — ​ $ 113 ​ $ 18,346
Schedule of Allowance for Loan Losses	The following tables detail the changes in the allowance for loan and lease losses by loan and lease classification (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, 2021 ​ ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Beginning balance $ 8,382 $ 3,323 $ 2,061 $ 4,442 $ — $ 102 $ 18,310 Charged-off loans and leases ​ — ​ — ​ — ​ (41) ​ (68) ​ (132) ​ (241) Recoveries of charge-offs ​ 23 ​ 13 ​ — ​ 3 ​ 5 ​ 33 ​ 77 Provision charged to expense ​ 1,000 ​ 205 ​ 157 ​ (603) ​ 288 ​ 102 ​ 1,149 Ending balance ​ $ 9,405 ​ $ 3,541 ​ $ 2,218 ​ $ 3,801 ​ $ 225 ​ $ 105 ​ $ 19,295 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, 2020 ​ ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Beginning balance $ 6,595 $ 3,313 $ 1,795 $ 4,443 $ — $ 108 $ 16,254 Charged-off loans and leases ​ — ​ (21) ​ — ​ (60) ​ — ​ (89) ​ (170) Recoveries of charge-offs ​ 11 ​ 17 ​ — ​ 55 ​ — ​ 16 ​ 99 Provision charged to expense ​ 1,123 ​ 135 ​ 265 ​ 1,025 ​ — ​ 86 ​ 2,634 Ending balance ​ $ 7,729 ​ $ 3,444 ​ $ 2,060 ​ $ 5,463 ​ $ — ​ $ 121 ​ $ 18,817 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, 2021 ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Beginning balance $ 7,579 $ 3,471 $ 2,076 $ 5,107 $ — $ 113 $ 18,346 Charged-off loans and leases ​ — ​ (60) ​ — ​ (45) ​ (68) ​ (341) ​ (514) Recoveries of charge-offs ​ 29 ​ 34 ​ — ​ 13 ​ 5 ​ 171 ​ 252 Provision charged to expense ​ 1,797 ​ 96 ​ 142 ​ (1,274) ​ 288 ​ 162 ​ 1,211 Ending balance ​ $ 9,405 ​ $ 3,541 ​ $ 2,218 ​ $ 3,801 ​ $ 225 ​ $ 105 ​ $ 19,295 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, 2020 ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Beginning balance $ 4,508 $ 2,576 $ 1,127 $ 1,957 $ — $ 75 $ 10,243 Charged-off loans and leases ​ — ​ (23) ​ — ​ (77) ​ — ​ (231) ​ (331) Recoveries of charge-offs ​ 16 ​ 34 ​ 2 ​ 103 ​ — ​ 67 ​ 222 Provision charged to expense ​ 3,205 ​ 857 ​ 931 ​ 3,480 ​ — ​ 210 ​ 8,683 Ending balance ​ $ 7,729 ​ $ 3,444 ​ $ 2,060 ​ $ 5,463 ​ $ — ​ $ 121 ​ $ 18,817 ​
Loan Credit Quality Indicators	The following tables outline the amount of each loan and lease classification and the amount categorized into each risk rating (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ Non PCI Loans and Leases: ​ Real Estate ​ Real Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Pass $ 1,245,064 $ 461,422 $ 323,156 $ 460,588 $ 49,648 $ 11,591 $ 2,551,469 Watch ​ 40,106 ​ 1,490 ​ 240 ​ 5,767 ​ — ​ 45 ​ 47,648 Special mention ​ 3,841 ​ 1,527 ​ — ​ 244 ​ — ​ — ​ 5,612 Substandard ​ 1,080 ​ 2,859 ​ 74 ​ 224 ​ — ​ 23 ​ 4,260 Doubtful ​ — ​ — ​ — ​ 45 ​ — ​ — ​ 45 Total ​ ​ 1,290,091 ​ ​ 467,298 ​ ​ 323,470 ​ ​ 466,868 ​ ​ 49,648 ​ ​ 11,659 ​ ​ 2,609,034 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ PCI Loans and Leases: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 11,769 ​ 8,473 ​ 2,344 ​ 2,824 ​ 3,748 ​ 69 ​ 29,227 Watch ​ 7,719 ​ 754 ​ 91 ​ 1 ​ — ​ 18 ​ 8,583 Special mention ​ 579 ​ 70 ​ — ​ — ​ — ​ — ​ 649 Substandard ​ 3,089 ​ 1,566 ​ 469 ​ 46 ​ — ​ — ​ 5,170 Doubtful ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ ​ 23,156 ​ ​ 10,863 ​ ​ 2,904 ​ ​ 2,871 ​ ​ 3,748 ​ ​ 87 ​ ​ 43,629 Total loans and leases ​ $ 1,313,247 ​ $ 478,161 ​ $ 326,374 ​ $ 469,739 ​ $ 53,396 ​ $ 11,746 ​ $ 2,652,663 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ ​ ​ ​ Consumer ​ ​ ​ Non PCI Loans and Leases: ​ Real Estate ​ Real Estate Development ​ Industrial ​ Leases ​ and Other ​ Total Pass $ 922,153 $ 417,302 $ 269,350 $ 625,836 $ — $ 12,622 $ 2,247,263 Watch ​ 66,287 ​ 14,218 ​ 3,296 ​ 7,673 ​ — ​ 137 ​ 91,611 Special mention ​ 4,446 ​ 46 ​ — ​ 320 ​ — ​ — ​ 4,812 Substandard ​ 3,967 ​ 2,020 ​ 81 ​ 261 ​ — ​ 30 ​ 6,359 Doubtful ​ — ​ 86 ​ — ​ 48 ​ — ​ — ​ 134 Total ​ ​ 996,853 ​ ​ 433,672 ​ ​ 272,727 ​ ​ 634,138 ​ ​ — ​ ​ 12,789 ​ ​ 2,350,179 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ PCI Loans and Leases: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 11,072 ​ 8,382 ​ 1,008 ​ 262 ​ — ​ 25 ​ 20,749 Watch ​ 3,381 ​ 224 ​ 3,820 ​ — ​ — ​ 2 ​ 7,427 Special mention ​ 19 ​ 57 ​ — ​ — ​ — ​ — ​ 76 Substandard ​ 1,651 ​ 1,595 ​ 520 ​ 46 ​ — ​ — ​ 3,812 Doubtful ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ ​ 16,123 ​ ​ 10,258 ​ ​ 5,348 ​ ​ 308 ​ ​ — ​ ​ 27 ​ ​ 32,064 Total loans and leases ​ $ 1,012,976 ​ $ 443,930 ​ $ 278,075 ​ $ 634,446 ​ $ — ​ $ 12,816 ​ $ 2,382,243 ​
Past Due Loans and Leases	The following tables present an aging analysis of our loan and lease portfolio (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ 30-60 Days 61-89 Days Past Due 90 ​ ​ Total ​ ​ ​ ​ ​ ​ ​ Past Due and Past Due and Days or More ​ ​ ​ Past Due and ​ ​ ​ ​ Accruing Accruing and Accruing ​ Nonaccrual ​ Nonaccrual ​ PCI ​ Current ​ Total Commercial real estate ​ $ 1,599 ​ $ — ​ $ — ​ $ 858 ​ $ 2,457 ​ $ 23,156 ​ $ 1,287,634 ​ $ 1,313,247 Consumer real estate ​ 170 ​ — ​ — ​ 2,564 ​ 2,734 ​ 10,863 ​ 464,564 ​ 478,161 Construction and land development ​ 45 ​ — ​ — ​ — ​ 45 ​ 2,904 ​ 323,425 ​ 326,374 Commercial and industrial ​ 342 ​ 214 ​ — ​ 125 ​ 681 ​ 2,871 ​ 466,187 ​ 469,739 Leases ​ ​ 377 ​ ​ 42 ​ ​ — ​ ​ — ​ ​ 419 ​ ​ 3,748 ​ ​ 49,229 ​ ​ 53,396 Consumer and other ​ 193 ​ — ​ — ​ 20 ​ 213 ​ 87 ​ 11,446 ​ 11,746 Total ​ $ 2,726 ​ $ 256 ​ $ — ​ $ 3,567 ​ $ 6,549 ​ $ 43,629 ​ $ 2,602,485 ​ $ 2,652,663 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ 30-60 Days 61-89 Days Past Due 90 ​ ​ Total ​ ​ ​ ​ ​ ​ ​ Past Due and Past Due and Days or More ​ ​ ​ Past Due and ​ ​ ​ ​ Accruing Accruing and Accruing ​ Nonaccrual ​ Nonaccrual ​ PCI ​ Current ​ Total Commercial real estate ​ $ 134 ​ $ — ​ $ 67 ​ $ 3,740 ​ $ 3,941 ​ $ 16,123 ​ $ 992,912 ​ $ 1,012,976 Consumer real estate ​ 1,916 ​ 51 ​ 82 ​ 1,823 ​ 3,872 ​ 10,258 ​ 429,800 ​ 443,930 Construction and land development ​ 245 ​ — ​ — ​ 12 ​ 257 ​ 5,348 ​ 272,470 ​ 278,075 Commercial and industrial ​ 12 ​ 76 ​ — ​ 36 ​ 124 ​ 308 ​ 634,014 ​ 634,446 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ 14 ​ 5 ​ — ​ 22 ​ 41 ​ 27 ​ 12,748 ​ 12,816 Total ​ $ 2,321 ​ $ 132 ​ $ 149 ​ $ 5,633 ​ $ 8,235 ​ $ 32,064 ​ $ 2,341,944 ​ $ 2,382,243
Impaired Loans	The following is an analysis of the impaired loan and lease portfolio, including PCI loans and leases, detailing the related allowance recorded (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 December 31, 2020 ​ ​ ​ Unpaid ​ ​ ​ ​ Unpaid ​ ​ ​ Recorded Principal Related Recorded Principal Related ​ ​ Investment Balance ​ Allowance ​ Investment Balance ​ Allowance Impaired loans and leases without a valuation allowance: ​ ​ ​ ​ ​ ​ Commercial real estate ​ $ — ​ $ — ​ $ — ​ $ 3,871 ​ $ 3,872 ​ $ — Consumer real estate ​ 2,156 ​ 2,157 ​ — ​ 888 ​ 888 ​ — Construction and land development ​ — ​ — ​ — ​ — ​ — ​ — Commercial and industrial ​ — ​ — ​ — ​ — ​ — ​ — Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ — ​ — ​ ​ 2,156 ​ 2,157 ​ — ​ 4,759 ​ 4,760 ​ — Impaired loans and leases with a valuation allowance: ​ ​ ​ ​ ​ ​ Commercial real estate ​ 858 ​ 858 ​ 417 ​ — ​ — ​ — Consumer real estate ​ 261 ​ 263 ​ 70 ​ 428 ​ 428 ​ 116 Construction and land development ​ — ​ — ​ — ​ — ​ — ​ — Commercial and industrial ​ 99 ​ 99 ​ 99 ​ 146 ​ 146 ​ 121 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ — ​ — ​ ​ 1,218 ​ 1,220 ​ 586 ​ 574 ​ 574 ​ 237 PCI loans and leases: ​ ​ ​ ​ ​ ​ Commercial real estate ​ 1,206 ​ 1,500 ​ 61 ​ — ​ — ​ — Consumer real estate ​ 1,196 ​ 1,318 ​ 155 ​ 1,827 ​ 2,086 ​ 88 Construction and land development ​ — ​ — ​ — ​ — ​ — ​ — Commercial and industrial ​ 255 ​ 228 ​ 209 ​ 270 ​ 234 ​ 218 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ 6 ​ 5 ​ 2 ​ 21 ​ 20 ​ 3 ​ ​ 2,663 ​ 3,051 ​ 427 ​ 2,118 ​ 2,340 ​ 309 Total impaired loans and leases ​ $ 6,037 ​ $ 6,428 ​ $ 1,013 ​ $ 7,451 ​ $ 7,674 ​ $ 546 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, ​ ​ 2021 ​ 2020 ​ Average Interest Average Interest ​ Recorded Income Recorded Income ​ ​ Investment ​ Recognized Investment Recognized Impaired loans and leases without a valuation allowance: ​ ​ ​ ​ Commercial real estate ​ $ — ​ $ — ​ $ 552 ​ $ 3 Consumer real estate ​ 2,171 ​ 19 ​ 758 ​ 3 Construction and land development ​ — ​ — ​ — ​ — Commercial and industrial ​ — ​ — ​ — ​ — Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ ​ 2,171 ​ 19 ​ 1,310 ​ 6 Impaired loans and leases with a valuation allowance: ​ ​ ​ ​ Commercial real estate ​ 858 ​ — ​ 198 ​ — Consumer real estate ​ 261 ​ 3 ​ 440 ​ 4 Construction and land development ​ — ​ — ​ — ​ — Commercial and industrial ​ 154 ​ 2 ​ 379 ​ 2 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ ​ 1,273 ​ 5 ​ 1,017 ​ 6 PCI loans and leases: ​ ​ ​ ​ Commercial real estate ​ 1,230 ​ 27 ​ 8 ​ — Consumer real estate ​ 1,176 ​ 21 ​ 1,869 ​ 38 Construction and land development ​ — ​ — ​ — ​ — Commercial and industrial ​ 258 ​ 1 ​ 305 ​ 2 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ 10 ​ — ​ 27 ​ — ​ ​ 2,674 ​ 49 ​ 2,209 ​ 40 Total impaired loans and leases ​ $ 6,118 ​ $ 73 ​ $ 4,536 ​ $ 52 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, ​ ​ 2021 ​ 2020 ​ Average Interest Average Interest ​ Recorded Income Recorded Income ​ ​ Investment ​ Recognized Investment Recognized Impaired loans and leases without a valuation allowance: ​ ​ ​ ​ Commercial real estate ​ $ 1,000 ​ $ 1 ​ $ 374 ​ $ 7 Consumer real estate ​ 1,778 ​ 39 ​ 653 ​ 17 Construction and land development ​ — ​ — ​ 289 ​ — Commercial and industrial ​ — ​ — ​ — ​ — Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ ​ 2,778 ​ 40 ​ 1,316 ​ 24 Impaired loans and leases with a valuation allowance: ​ ​ ​ ​ ​ Commercial real estate ​ 1,218 ​ 104 ​ 198 ​ 2 Consumer real estate ​ 352 ​ 11 ​ 712 ​ 18 Construction and land development ​ — ​ — ​ — ​ — Commercial and industrial ​ 141 ​ 7 ​ 269 ​ 7 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ — ​ — ​ — ​ — ​ ​ 1,711 ​ 122 ​ 1,179 ​ 27 PCI loans and leases: ​ ​ ​ ​ Commercial real estate ​ 410 ​ 27 ​ 250 ​ 1 Consumer real estate ​ 1,169 ​ 64 ​ 1,344 ​ 77 Construction and land development ​ — ​ — ​ 58 ​ — Commercial and industrial ​ 263 ​ 3 ​ 343 ​ 5 Leases ​ ​ — ​ ​ — ​ ​ — ​ ​ — Consumer and other ​ 15 ​ — ​ 29 ​ — ​ ​ 1,857 ​ 94 ​ 2,024 ​ 83 Total impaired loans and leases ​ $ 6,346 ​ $ 256 ​ $ 4,519 ​ $ 134 ​
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Acquired During Period Carrying Amount Of Loans	The Company has acquired loans and leases where there was, at acquisition, evidence of deterioration of credit quality since origination and it was probable, at acquisition, that all contractually required payments would not be collected. The carrying amount of those loans and leases are as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, December 31, ​ 2021 2020 Commercial real estate ​ $ 31,664 ​ $ 23,787 Consumer real estate ​ 13,211 ​ 12,692 Construction and land development ​ 3,686 ​ 1,812 Commercial and industrial ​ 3,794 ​ 6,521 Leases ​ ​ 4,133 ​ ​ — Consumer and other ​ 154 ​ 161 Total loans and leases ​ 56,642 ​ 44,973 Less: Remaining purchase discount ​ (13,013) ​ (12,909) Total loans and leases, net of purchase discount ​ 43,629 ​ 32,064 Less: Allowance for loan and leases losses ​ (427) ​ (309) Carrying amount, net of allowance ​ $ 43,202 ​ $ 31,755 ​
Schedule of Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement	Activity related to the accretable yield on loans and leases acquired with deteriorated credit quality is as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 2020 2021 2020 Accretable yield, beginning of period ​ $ 14,522 ​ $ 11,777 ​ $ 16,889 ​ $ 8,454 Additions ​ 4,072 ​ — ​ 4,721 ​ 2,515 Accretion income ​ (2,151) ​ (1,267) ​ (5,180) ​ (4,401) Reclassification ​ 254 ​ 265 ​ 1,931 ​ 2,428 Other changes, net ​ (1,034) ​ 7,405 ​ (2,698) ​ 9,184 Accretable yield, end of period ​ $ 15,663 ​ $ 18,180 ​ $ 15,663 ​ $ 18,180

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The carrying amount of goodwill and other intangible assets as of the dates indicated is summarized below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, December 31, ​ ​ 2021 ​ 2020 Goodwill: ​ ​ Balance, beginning of period ​ $ 74,135 ​ $ 65,614 Acquisition of PFG ​ 323 ​ 8,521 Acquisition of Fountain ​ 2,400 ​ — Acquisition of SCB ​ ​ 15,589 ​ ​ — Adjustment, due to Sale ​ ​ (2,463) ​ ​ — Balance, end of the period ​ $ 89,984 ​ $ 74,135
Finite-lived Intangible Assets Amortization Expense	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Core Deposit Customer Relationships Tradename ​ ​ Amortized other intangible assets: ​ Intangibles ​ Intangibles ​ Intangibles ​ Total ​ Beginning balance January 1, 2021, gross ​ $ 15,920 ​ $ 1,064 ​ $ 63 ​ $ 17,047 ​ Acquisition of Fountain ​ ​ - ​ ​ 2,658 ​ ​ - ​ ​ 2,658 ​ Acquisition of SCB ​ ​ 1,550 ​ ​ - ​ ​ - ​ ​ 1,550 ​ Balance, September 30, 2021, other intangible assets, gross ​ ​ 17,470 ​ ​ 3,722 ​ ​ 63 ​ ​ 21,255 ​ Less: accumulated amortization ​ ​ (5,748) ​ ​ (541) ​ ​ (20) ​ ​ (6,309) ​ Balance, September 30, 2021, other intangible assets, net ​ $ 11,722 ​ $ 3,181 ​ $ 43 ​ $ 14,946 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance January 1, 2020, gross ​ $ 14,550 ​ $ - ​ $ - ​ $ 14,550 ​ Acquisition of PFG ​ ​ 1,370 ​ ​ 1,064 ​ ​ 63 ​ ​ 2,497 ​ Balance, December 31, 2020, other intangible assets, gross ​ ​ 15,920 ​ ​ 1,064 ​ ​ 63 ​ ​ 17,047 ​ Less: accumulated amortization ​ ​ (4,540) ​ ​ (161) ​ ​ (10) ​ ​ (4,711) ​ Balance, December 31, 2020, other intangible assets, net ​ $ 11,380 ​ $ 903 ​ $ 53 ​ $ 12,336 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The estimated aggregate amortization expense for future periods for intangibles is as follows (in thousands) ​ ​ ​ ​ ​ Remainder of 2021 $ 660 2022 ​ 2,521 2023 ​ 2,356 2024 ​ 2,203 2025 ​ ​ 2,041 Thereafter ​ 5,165 Total ​ $ 14,946

Borrowings, Line of Credit an_2

Borrowings, Line of Credit and Subordinated Debt (Tables)	9 Months Ended
	Sep. 30, 2021
Borrowings, Line of Credit and Subordinated Debt [Abstract]
Schedule of debt	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, ​ December 31, ​ ​ 2021 ​ 2020 Securities sold under customer repurchase agreements $ 6,248 ​ $ 5,803 FHLB borrowings ​ ​ 75,000 ​ ​ 75,000 Other borrowings ​ ​ 7,500 ​ ​ 396 Total $ 88,748 ​ $ 81,199

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	9 Months Ended
	Sep. 30, 2021
Defined Benefit Plan [Abstract]
Schedule of Option Activity	​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ ​ Exercisable ​ ​ Number ​ Price Outstanding at December 31, 2020 99,617 ​ $ 10.19 Granted — ​ — Exercised (19,040) ​ 10.18 Forfeited — ​ — Outstanding at September 30, 2021 80,577 ​ $ 10.19
Schedule of Options Outstanding by Exercise Price Range	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Options Outstanding ​ Options Exercisable ​ ​ ​ Weighted- ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Average ​ Weighted- ​ ​ ​ Weighted- ​ ​ ​ ​ ​ Remaining ​ Average ​ ​ ​ Average Exercise ​ Number ​ Contractual ​ Exercise ​ Number ​ Exercise Prices ​ Outstanding ​ Life ​ Price ​ Exercisable ​ Price $ 6.60 19,250 0.45 years ​ $ 6.60 19,250 ​ $ 6.60 ​ 9.48 18,000 1.45 years ​ 9.48 18,000 ​ 9.48 ​ 9.60 22,250 2.25 years ​ 9.60 22,250 ​ 9.60 ​ 11.76 2,266 0.75 years ​ 11.76 2,266 ​ 11.76 ​ 15.05 18,811 3.75 years ​ 15.05 18,811 ​ 15.05 Outstanding, end of period 80,577 1.95 years ​ $ 10.19 ​ 80,577 ​ $ 10.19
Schedule of Non-vested Restricted Stock Awards	​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ ​ Grant-Date ​ ​ Number ​ Fair Value Balance at December 31, 2020 100,218 ​ $ 19.07 Granted 53,134 ​ 20.43 Vested (7,185) ​ 21.42 Forfeited/expired (1,800) ​ 16.37 Balance at September 30, 2021 144,367 ​ $ 19.49
Share-based Payment Arrangement, Stock Appreciation Right, Activity	A summary of the status of SARs plans is presented in the following table: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ Number Exercisable Price Outstanding at December 31, 2020 ​ 73,000 ​ $ 19.02 Granted ​ 22,000 ​ ​ 20.70 Exercised (23,500) ​ 21.61 Forfeited (6,000) ​ 18.00 Outstanding at September 30, 2021 65,500 ​ $ 18.75 ​ Information pertaining to SARs outstanding at September 30, 2021, is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SARs Outstanding ​ SARs Exercisable ​ ​ ​ ​ ​ Weighted- ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Average ​ Weighted- ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Remaining ​ Average ​ ​ ​ Weighted- Average Exercise ​ Number ​ Contractual ​ Exercise ​ Number ​ Exercise Prices Outstanding Life ​ ​ Price ​ Exercisable ​ Price $ 15.19 16,000 2.25 years $ 15.19 — $ — ​ 18.12 19,000 1.25 years ​ 18.12 — ​ — ​ 20.70 20,000 3.25 years ​ 20.70 — ​ — ​ 21.61 10,500 0.25 years ​ 21.61 10,500 ​ 21.61 ​ Outstanding, end of period 65,500 1.95 years ​ $ 18.75 10,500 ​ $ 21.61 ​

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Other Commitments	A summary of the Company’s total contractual amount for all off-balance sheet commitments are as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, ​ December 31, ​ ​ 2021 ​ 2020 Commitments to extend credit $ 616,271 ​ $ 476,841 Standby letters of credit ​ 10,439 ​ 5,261

Fair Value Disclosures (Tables)

Fair Value Disclosures (Tables)	9 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The tables below present the recorded amount of assets and liabilities measured at fair value on a recurring basis (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices in Significant Significant ​ ​ ​ ​ ​ Active Markets ​ Other ​ Other ​ ​ ​ ​ ​ for Identical ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Assets ​ Inputs ​ Inputs Description ​ Fair Value ​ (Level 1) ​ (Level 2) ​ (Level 3) September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Securities available-for-sale: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ U.S. Treasury ​ ​ 94,025 ​ ​ — ​ ​ 94,025 ​ ​ — U.S. Government-sponsored enterprises (GSEs) ​ $ 53,463 ​ $ — ​ $ 53,463 ​ $ — Municipal securities ​ 95,570 ​ — ​ 95,570 ​ — Other debt securities ​ 26,291 ​ — ​ 26,291 ​ — Mortgage-backed securities (GSEs) ​ 69,994 ​ — ​ 69,994 ​ — Total securities available-for-sale ​ $ 339,343 ​ $ — ​ $ 339,343 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Derivative financial instruments ​ $ 4,180 ​ $ — ​ $ 4,180 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ Assets: ​ ​ ​ ​ Securities available-for-sale: ​ ​ ​ ​ U.S. Government-sponsored enterprises (GSEs) ​ $ 30,530 ​ $ — ​ $ 30,530 ​ $ — Municipal securities ​ 91,989 ​ — ​ 91,989 ​ — Other debt securities ​ 25,118 ​ — ​ 25,118 ​ — Mortgage-backed securities (GSEs) ​ 67,997 ​ — ​ 67,997 ​ — Total securities available-for-sale ​ $ 215,634 ​ $ — ​ $ 215,634 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ Derivative financial instruments ​ $ 6,174 ​ ​ — ​ $ 6,174 ​ ​ —
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices in Significant Significant ​ ​ ​ ​ ​ Active Markets ​ Other ​ Other ​ ​ ​ ​ ​ for Identical ​ Observable ​ Unobservable ​ ​ ​ ​ ​ Assets ​ Inputs ​ Inputs ​ ​ Fair Value ​ (Level 1) ​ (Level 2) ​ (Level 3) September 30, 2021: ​ ​ ​ ​ Collateral dependent loans ​ $ 2,868 ​ $ — ​ $ — ​ $ 2,868 Other real estate owned ​ 2,415 ​ — ​ — ​ 2,415 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ Collateral dependent loans ​ $ 2,455 ​ $ — ​ $ — ​ $ 2,455 Other real estate owned ​ 4,619 ​ — ​ — ​ 4,619
Fair Value Measurement Inputs and Valuation Techniques	For Level 3 assets measured at fair value on a non-recurring basis, the significant unobservable inputs used in the fair value measurements are presented below (dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ Valuation ​ Significant Other ​ Average of ​ ​ ​ Fair Value ​ Technique ​ Unobservable Input ​ Input ​ September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Collateral dependent loans ​ $ 2,868 Appraisal Appraisal discounts 26 % Other real estate owned ​ 2,415 Appraisal Appraisal discounts 10 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Collateral dependent loans ​ $ 2,455 Appraisal Appraisal discounts 9 % Other real estate owned ​ 4,619 Appraisal Appraisal discounts 22 % ​ Collateral dependent loans:
Fair Value, by Balance Sheet Grouping	The carrying amount and estimated fair value of the Company’s financial instruments are as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements Using ​ Carrying ​ ​ ​ ​ ​ ​ Estimated ​ ​ Amount ​ Level 1 ​ Level 2 ​ Level 3 ​ Fair Value September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 1,091,160 $ 1,091,160 $ — $ — ​ $ 1,091,160 Securities available-for-sale ​ 339,343 ​ — ​ 339,343 ​ — ​ 339,343 Other investments ​ 14,972 ​ N/A ​ N/A ​ N/A ​ N/A Loans and leases, net and loans held for sale ​ 2,636,786 ​ — ​ — ​ 2,630,239 ​ 2,630,239 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Noninterest-bearing demand deposits ​ 977,180 ​ — ​ 977,180 ​ — ​ 977,180 Interest-bearing demand deposits ​ 847,007 ​ — ​ 847,007 ​ — ​ 847,007 Money market and savings deposits ​ 1,389,393 ​ — ​ 1,389,393 ​ — ​ 1,389,393 Time deposits ​ 585,692 ​ — ​ 587,954 ​ — ​ 587,954 Borrowings ​ ​ 88,748 ​ ​ — ​ ​ 89,669 ​ ​ — ​ ​ 89,669 Subordinated debt ​ 41,909 ​ — ​ — ​ 43,645 ​ 43,645 Derivative financial instruments ​ 4,180 ​ — ​ 4,180 ​ — ​ 4,180 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 481,719 $ 481,719 $ — $ — ​ $ 481,719 Securities available-for-sale ​ 215,634 ​ — ​ 215,634 ​ — ​ 215,634 Other investments ​ 14,794 ​ N/A ​ N/A ​ N/A ​ N/A Loans and leases, net and loans held for sale ​ 2,375,618 ​ — ​ — ​ 2,377,581 ​ 2,377,581 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Noninterest-bearing demand deposits ​ 685,957 ​ — ​ 685,957 ​ — ​ 685,957 Interest-bearing demand deposits ​ 649,129 ​ — ​ 649,129 ​ — ​ 649,129 Money market and savings deposits ​ 919,631 ​ — ​ 919,631 ​ — ​ 919,631 Time deposits ​ 550,498 ​ — ​ 554,120 ​ — ​ 554,120 Borrowings ​ ​ 81,199 ​ ​ — ​ ​ 82,892 ​ ​ — ​ ​ 82,892 Subordinated debt ​ 39,346 ​ — ​ — ​ 40,550 ​ 40,550 Derivative financial instruments ​ 6,174 ​ — ​ 6,174 ​ — ​ 6,174 ​

Derivatives Financial Instrum_2

Derivatives Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Value Hedge Relationships in Balance Sheet	A summary of the Company’s fair value hedge relationships for the periods presented are as follows (dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ ​ ​ ​ Average ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance ​ Remaining ​ Weighted ​ ​ ​ ​ ​ ​ ​ ​ ​ Sheet ​ Maturity ​ Average ​ Receive ​ Notional ​ Estimated Liability derivatives ​ Location ​ (In Years) ​ Pay Rate ​ Rate ​ Amount ​ Fair Value September 30, 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements - securities Other liabilities 5.74 3.09 % 3 month LIBOR ​ $ 36,000 $ (4,180) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements - securities Other liabilities 7.13 3.08 % 3 month LIBOR ​ $ 36,000 ​ $ (6,174)
Schedule of Fair Value Hedge Relationships on Income Statement	​ The effects of the Company’s fair value hedge relationships reported in interest income on tax-exempt available-for-sale securities on the consolidated income statement were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 ​ 2020 ​ 2021 ​ 2020 Interest income on tax-exempt securities $ 549 ​ $ 565 ​ $ 1,675 ​ $ 1,586 Effects of fair value hedge relationships ​ (218) ​ (201) ​ (781) ​ (522) Reported interest income on tax-exempt securities ​ $ 331 ​ $ 364 ​ $ 894 ​ $ 1,064 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, Gain (loss) on fair value hedging relationship 2021 ​ 2020 ​ 2021 ​ 2020 Interest rate swap agreements - securities: ​ ​ ​ ​ ​ Hedged items $ 288 ​ $ 299 ​ $ 1,994 ​ $ (3,345) Derivative designated as hedging instruments ​ $ (288) ​ $ (299) ​ $ (1,994) ​ $ 3,345 ​
Schedule of Fair Value Hedges	The following amounts were recorded on the balance sheet related to cumulative basis adjustments for fair value hedges (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cumulative Amount of Fair ​ ​ ​ ​ ​ Value Hedging Adjustment ​ ​ Carrying Amount ​ Included in Other Comprehensive Line item on the balance sheet of the Hedged Assets Income September 30, 2021: ​ ​ Securities available-for-sale $ 43,258 ​ $ 448 December 31, 2020: ​ ​ Securities available-for-sale ​ $ 44,017 ​ $ (1,063)
Schedule of interest rate swaps related to loan hedging program	At September 30, 2021 and December 31, 2020, interest rate swaps related to the Company’s loan hedging program that were outstanding are presented in the following table (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, 2021 ​ December 31, 2020 ​ ​ ​ Notional ​ ​ Estimated ​ ​ Notional ​ ​ Estimated ​ ​ ​ Amount ​ ​ Fair Value ​ ​ Amount ​ ​ Fair Value Interest rate swap agreements: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets ​ $ 14,718 ​ $ 250 ​ $ - ​ $ - Liabilities ​ ​ 14,718 ​ ​ (250) ​ ​ - ​ ​ - Total ​ $ 29,436 ​ $ - ​ $ - ​ $ -
Schedule of interest rate swap to facilitate customer's transactions	The Company establishes limits and monitors exposures for customer swap positions. Any fees received to enter the swap agreements at inception are recognized in earnings when received and is included in noninterest income. Such fees were as follows (in thousands) : ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 ​ 2020 ​ 2021 ​ 2020 Interest rate swap agreements $ 479 ​ $ — ​ $ 489 ​ $ —

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2021
Leases [Abstract]
Summary of Lease Assets and Liabilities	The following table represents the consolidated balance sheet classification of the Company’s ROU assets and lease liabilities. The Company elected not to include short-term leases (i.e., leases with initial terms of twelve months or less), or equipment leases (deemed immaterial) on the consolidated balance sheet (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ September 30, ​ December 31, ​ ​ Classification ​ 2021 ​ 2020 Assets: ​ ​ ​ Operating lease right-of-use assets Other assets ​ $ 6,104 ​ $ 4,797 Liabilities: ​ ​ ​ Operating lease liabilities Other liabilities ​ $ 6,154 ​ $ 4,827
Summary of Lease Costs and Other Information	The following table represents lease costs and other lease information. As the Company elected, for all classes of underlying assets, not to separate lease and non-lease components and instead to account for them as a single lease component, the variable lease cost primarily represents variable payments such as common area maintenance (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended ​ Nine Months Ended ​ ​ September 30, ​ September 30, ​ 2021 ​ 2020 ​ 2021 ​ 2020 Lease costs: ​ ​ ​ ​ ​ ​ ​ Operating lease costs ​ $ 270 ​ $ 272 ​ $ 764 ​ $ 779 Variable lease costs ​ 18 ​ 29 ​ 66 ​ 84 Total ​ $ 288 ​ $ 301 ​ $ 830 ​ $ 863 Other information: ​ ​ ​ ​ Cash paid for amounts included in the measurement of lease liabilities: ​ ​ ​ ​ Operating cash flows from operating leases ​ $ 257 ​ $ 264 ​ $ 740 ​ $ 759
Schedule of Remaining Minimum Lease Payments	Future minimum payments for operating leases with initial or remaining terms of one year or more as of September 30, 2021, were as follows (in thousands) ​ ​ ​ ​ ​ ​ Amounts September 30, 2022 $ 253 September 30, 2023 ​ 985 September 30, 2024 ​ 744 September 30, 2025 ​ 528 September 30, 2026 ​ 515 Thereafter ​ 4,059 Total future minimum lease payments ​ 7,084 Amounts representing interest ​ (930) Present value of net future minimum lease payments ​ $ 6,154

Regulatory Matters (Tables)

Regulatory Matters (Tables)	9 Months Ended
	Sep. 30, 2021
Banking and Thrift [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	Actual and required capital levels at September 30, 2021, and December 31, 2020 are presented below (dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Minimum to be ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ well ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ capitalized under ​ ​ ​ ​ ​ ​ ​ ​ Minimum for ​ prompt ​ ​ ​ ​ ​ ​ ​ ​ capital ​ corrective action ​ ​ ​ ​ Actual ​ adequacy purposes ​ provisions 1 ​ ​ Amount Ratio Amount Ratio Amount Ratio ​ September 30, 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartFinancial: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 381,766 12.92 % $ 236,367 8.00 % ​ N/A N/A ​ Tier 1 Capital (to Risk Weighted Assets) ​ 320,562 10.85 % 177,275 6.00 % ​ N/A N/A ​ Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 320,562 10.85 % 132,956 4.50 % ​ N/A N/A ​ Tier 1 Capital (to Average Assets) 2 ​ 320,562 8.36 % 153,417 4.00 % ​ N/A N/A ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartBank: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 371,740 12.59 % $ 236,244 8.00 % $ 295,304 10.00 % Tier 1 Capital (to Risk Weighted Assets) ​ 352,445 11.94 % 177,183 6.00 % 236,244 8.00 % Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 352,445 11.94 % 132,887 4.50 % 191,948 6.50 % Tier 1 Capital (to Average Assets) 2 ​ 352,445 9.20 % 153,185 4.00 % 191,481 5.00 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartFinancial: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 329,431 14.07 % $ 187,303 8.00 % N/A N/A ​ Tier 1 Capital (to Risk Weighted Assets) ​ 271,739 11.61 % 140,477 6.00 % N/A N/A ​ Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 271,739 11.61 % 105,358 4.50 % N/A N/A ​ Tier 1 Capital (to Average Assets) ​ 271,739 8.70 % 125,002 4.00 % N/A N/A ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartBank: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 317,660 13.57 % $ 187,294 8.00 % $ 234,117 10.00 % Tier 1 Capital (to Risk Weighted Assets) ​ 299,314 12.78 % 140,470 6.00 % 187,294 8.00 % Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 299,314 12.78 % 105,353 4.50 % 152,176 6.50 % Tier 1 Capital (to Average Assets) ​ 299,314 9.58 % 124,969 4.00 % 156,212 5.00 % 1 2

Other comprehensive income (l_2

Other comprehensive income (loss) (Tables)	9 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Summary of Accumulated Other Comprehensive Income (Loss)	The changes in each component of accumulated other comprehensive income (loss), net of tax, were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, 2021 ​ ​ ​ ​ ​ Accumulated ​ ​ Securities ​ Fair Value ​ Other ​ ​ Available-for- ​ Municipal ​ Comprehensive ​ Sale Security Hedges Income (Loss) Beginning balance, June 30, 2021 $ 2,051 ​ $ 287 ​ $ 2,338 ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income ​ 210 ​ 44 ​ 254 Reclassification of amounts included in net income ​ (33) ​ — ​ (33) Net other comprehensive income during period ​ 177 ​ 44 ​ 221 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, September 30, 2021 ​ $ 2,228 ​ $ 331 ​ $ 2,559 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Three Months Ended September 30, 2020 ​ ​ ​ ​ ​ Accumulated ​ ​ Securities ​ Fair Value ​ Other ​ ​ Available-for- ​ Municipal ​ Comprehensive ​ Sale Security Hedges Income (Loss) Beginning balance, June 30, 2020 ​ $ 2,668 ​ $ (2,076) ​ $ 592 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income ​ (65) ​ 492 ​ 427 Reclassification of amounts included in net income ​ (7) ​ — ​ (7) Net other comprehensive income during period ​ (72) ​ 492 ​ 420 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, September 30, 2020 ​ $ 2,596 ​ $ (1,584) ​ $ 1,012 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, 2021 ​ ​ ​ ​ ​ Accumulated ​ ​ Securities ​ Fair Value ​ Other ​ ​ Available-for- ​ Municipal ​ Comprehensive ​ Sale Security Hedges Income (Loss) Beginning balance, December 31, 2020 $ 2,968 ​ $ (785) ​ $ 2,183 ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) ​ (707) ​ 1,116 ​ 409 Reclassification of amounts included in net income ​ (33) ​ — ​ (33) Net other comprehensive income (loss) during period ​ (740) ​ 1,116 ​ 376 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, September 30, 2021 ​ $ 2,228 ​ $ 331 ​ $ 2,559 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Nine Months Ended September 30, 2020 ​ ​ ​ ​ ​ Accumulated ​ ​ Securities ​ Fair Value ​ Other ​ ​ Available-for- ​ Municipal ​ Comprehensive ​ Sale Security Hedges Income (Loss) Beginning balance, December 31, 2019 ​ $ 391 ​ $ (223) ​ $ 168 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) ​ 2,201 ​ (1,361) ​ 840 Reclassification of amounts included in net income ​ 4 ​ — ​ 4 Net other comprehensive income (loss) during period ​ 2,205 ​ (1,361) ​ 844 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, September 30, 2020 ​ $ 2,596 ​ $ (1,584) ​ $ 1,012

Business Combinations (Narrativ

Business Combinations (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	Sep. 01, 2021	May 03, 2021	Mar. 01, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Common stock, par value (in dollars per share)	$ 1			$ 1		$ 1		$ 1
Goodwill				$ 89,984		$ 89,984		$ 74,135	$ 65,614
Merger-related costs				464	$ 290	939	$ 3,863
Sevier County Bancshares Inc [Member]
Business Acquisition [Line Items]
Common stock, par value (in dollars per share)	0
Sevier County Bancshares Inc [Member]
Business Acquisition [Line Items]
Cash to be paid upon conversion (in dollars per share)	$ 10.17
Common shares to be converted (in shares)	0.4116
Number of shares issued (in shares)	1,691,535
Cash consideration paid	$ 9,600					9,568
Pro forma, revenue of acquiree since acquisition date, actual				1,090		1,090
Pro forma information, earnings (loss) since acquisition date, actual				343		343
Pro forma revenue				39,207	32,965	110,745	93,213
Pro forma net income (loss)				10,516	6,624	30,984	16,473
Assets acquired	484,880			480,335		480,335
Liabilities assumed	443,099			444,102		444,102
Goodwill	15,600			15,589		15,589
Merger-related costs				445		683
Sevier County Bancshares Inc [Member] | Core Deposits [Member]
Business Acquisition [Line Items]
Intangible assets acquired	$ 1,600
Useful life	10 years
Sevier County Bancshares Inc [Member] | Sevier County Bancshares Inc [Member]
Business Acquisition [Line Items]
Threshold number of shares to be held by a shareholder to receive the per share stock consideration	20,000
Fountain [Member]
Business Acquisition [Line Items]
Cash consideration paid		$ 14,000				59,794
Repayment of indebtedness		45,800
Future cash payments of performance-based earnout		6,000
Pro forma, revenue of acquiree since acquisition date, actual				1,696		2,834
Pro forma information, earnings (loss) since acquisition date, actual				357		702
Pro forma revenue				36,690	31,566	102,470	89,016
Pro forma net income (loss)				9,614	$ 6,744	28,101	$ 16,274
Assets acquired		54,114		57,848		57,848
Liabilities assumed		683		454		454
Goodwill		2,400		2,400		2,400
Merger-related costs				18		159
Fountain [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets acquired		$ 2,700
Useful life		8 years
Progressive Financial Group Inc. [Member]
Business Acquisition [Line Items]
Cash to be paid upon conversion (in dollars per share)			$ 474.82
Common shares to be converted (in shares)			62.3808
Number of shares issued (in shares)			1,292,578
Cash consideration paid			$ 9,800			9,838
Assets acquired			301,041	298,322		298,322
Liabilities assumed			272,052	272,781		272,781
Goodwill			8,800	$ 8,844		$ 8,844
Progressive Financial Group Inc. [Member] | Core Deposits [Member]
Business Acquisition [Line Items]
Intangible assets acquired			$ 1,400
Useful life			10 years
Progressive Financial Group Inc. [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets acquired			$ 1,100
Useful life			10 years
Progressive Financial Group Inc. [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Intangible assets acquired			$ 63
Useful life			5 years

Business Combinations (Allocati

Business Combinations (Allocation of Purchase Price) (Details) - USD ($)	Sep. 01, 2021	May 03, 2021	Mar. 01, 2020	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Consideration transferred:
Goodwill				$ 89,984,000	$ 74,135,000	$ 65,614,000
Sevier County Bancshares Inc [Member]
Assets:
Cash and cash equivalents	$ 84,313,000			84,313,000
Investment securities available-for-sale	64,219,000			63,605,000
Restricted investments	533,000			533,000
Loans	304,620,000			300,069,000
Allowance for loan losses	(3,644,000)
Premises and equipment	15,579,000			15,284,000
Core deposit intangible				1,550,000
Bank owned life insurance	7,116,000			7,116,000
Deferred tax asset, net	10,340,000			6,333,000
Interest Receivable	884,000			884,000
Other assets	920,000			648,000
Total assets acquired	484,880,000			480,335,000
Liabilities:
Deposits	435,036,000			435,036,000
Time deposit premium				888,000
Subordinated debt	2,500,000			2,500,000
Payables and other liabilities	5,563,000			5,678,000
Total liabilities assumed	443,099,000			444,102,000
Total fair value of net assets acquired	41,781,000			36,233,000
Cash consideration paid	$ 9,600,000			9,568,000
Common stock issued				42,254,000
Number of shares issued (in shares)	1,691,535
Business Combination, Consideration Transferred, Total				51,822,000
Assets:
Investment securities available-for-sale	$ (614,000)
Loans	(4,551,000)
Allowance for loan losses	3,644,000
Premises and equipment, net	(295,000)
Deferred tax asset, net	(4,007,000)
Core deposit intangible	1,550,000
Other assets	(272,000)
Total assets acquired	(4,545,000)
Liabilities:
Time deposit premium	888,000
Payables and other liabilities	115,000
Total liabilities assumed	1,003,000
Consideration transferred:
Aggregate fair value adjustments	(5,548,000)
Goodwill	$ 15,600,000			15,589,000
Fountain [Member]
Assets:
Cash and cash equivalents		$ 413,000		413,000
Leases		54,945,000		54,225,000
Allowance for loan losses		(1,796,000)
Intangibles				2,658,000
Other repossessed assets		319,000		319,000
Other assets		233,000		233,000
Total assets acquired		54,114,000		57,848,000
Liabilities:
Payables and other liabilities		683,000		454,000
Total liabilities assumed		683,000		454,000
Total fair value of net assets acquired		53,431,000		57,394,000
Cash consideration paid		14,000,000		59,794,000
Business Combination, Consideration Transferred, Total				59,794,000
Assets:
Leases		(720,000)
Allowance for loan losses		1,796,000
Intangibles		2,658,000
Total assets acquired		3,734,000
Liabilities:
Payables and other liabilities		(229,000)
Total liabilities assumed		(229,000)
Consideration transferred:
Aggregate fair value adjustments		3,963,000
Goodwill		$ 2,400,000		2,400,000
Progressive Financial Group Inc. [Member]
Assets:
Cash and cash equivalents			$ 55,971,000	55,971,000
Investment securities available-for-sale			27,054,000	27,257,000
Restricted investments			692,000	692,000
Loans			191,672,000	187,981,000
Allowance for loan losses			(2,832,000)
Premises and equipment			15,681,000	12,762,000
Bank owned life insurance			5,560,000	5,560,000
Deferred tax asset, net				1,006,000
Intangibles				2,497,000
Other real estate owned			3,695,000	1,733,000
Interest Receivable			1,061,000	781,000
Prepaids			375,000	201,000
Goodwill			231,000
Other assets			1,881,000	1,881,000
Total assets acquired			301,041,000	298,322,000
Liabilities:
Deposits			271,276,000	271,276,000
Time deposit premium				729,000
Payables and other liabilities			776,000	776,000
Total liabilities assumed			272,052,000	272,781,000
Total fair value of net assets acquired			28,989,000	25,541,000
Cash consideration paid			9,800,000	9,838,000
Common stock issued			$ 1,292,578	24,547,000
Number of shares issued (in shares)			1,292,578
Business Combination, Consideration Transferred, Total				34,385,000
Assets:
Investment securities available-for-sale			$ 203,000
Loans			(3,691,000)
Allowance for loan losses			2,832,000
Premises and equipment, net			(2,919,000)
Deferred tax asset, net			813,000	193,000
Intangibles			1,370,000	1,127,000
Other real estate owned			(100,000)	(1,862,000)
Interest Receivable			(280,000)
Prepaids			(174,000)
Goodwill			(231,000)
Total assets acquired			(2,177,000)	(542,000)
Liabilities:
Time deposit premium			729,000
Total liabilities assumed			729,000
Consideration transferred:
Aggregate fair value adjustments			(2,906,000)	(542,000)
Goodwill			$ 8,800,000	$ 8,844,000

Business Combinations (Loans Ac

Business Combinations (Loans Acquired) (Details) - Purchased Credit Impaired Loans [Member] - USD ($) $ in Thousands	Sep. 01, 2021	May 03, 2021	Mar. 01, 2020
Sevier County Bancshares Inc [Member]
Business Acquisition [Line Items]
Contractual principal and interest at acquisition	$ 25,932
Nonaccretable difference	4,203
Expected cash flows at acquisition	21,729
Accretable yield	3,480
Basis in PCI loans at acquisition-estimated fair value	$ 18,249
Fountain [Member]
Business Acquisition [Line Items]
Contractual principal and interest at acquisition		$ 6,018
Nonaccretable difference		447
Expected cash flows at acquisition		5,571
Accretable yield		649
Basis in PCI loans at acquisition-estimated fair value		$ 4,922
Progressive Financial Group Inc. [Member]
Business Acquisition [Line Items]
Contractual principal and interest at acquisition			$ 21,107
Nonaccretable difference			4,706
Expected cash flows at acquisition			16,401
Accretable yield			2,515
Basis in PCI loans at acquisition-estimated fair value			$ 13,886

Business Combinations (Pro Form

Business Combinations (Pro Forma Information) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Sevier County Bancshares Inc [Member]
Business Acquisition [Line Items]
Pro forma, revenue of acquiree since acquisition date, actual	$ 1,090		$ 1,090
Pro forma revenue	39,207	$ 32,965	110,745	$ 93,213
Pro forma information, earnings (loss) since acquisition date, actual	343		343
Pro forma net income (loss)	10,516	6,624	30,984	16,473
Fountain [Member]
Business Acquisition [Line Items]
Pro forma, revenue of acquiree since acquisition date, actual	1,696		2,834
Pro forma revenue	36,690	31,566	102,470	89,016
Pro forma information, earnings (loss) since acquisition date, actual	357		702
Pro forma net income (loss)	$ 9,614	$ 6,744	$ 28,101	$ 16,274

Earnings per Share (Narrative)

Earnings per Share (Narrative) (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Anti-dilutive securities excluded from computation of earnings per share (in shares)	0	114,000	0	85,000

Earnings per Share (Schedule of

Earnings per Share (Schedule of Earnings Per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Basic earnings per share computation:
Net income available to common shareholders	$ 9,600	$ 6,395	$ 28,134	$ 15,302
Average common shares outstanding - basic (in shares)	15,557,528	15,160,579	15,192,919	14,903,757
Basic earnings per share (in dollars per share)	$ 0.62	$ 0.42	$ 1.85	$ 1.03
Diluted earnings per share computation:
Net income available to common shareholders	$ 9,600	$ 6,395	$ 28,134	$ 15,302
Average common shares outstanding - basic (in shares)	15,557,528	15,160,579	15,192,919	14,903,757
Incremental shares from assumed conversions:
Stock options and restricted stock (in shares)	133,598	50,032	119,836	61,698
Average common shares outstanding - diluted	15,691,126	15,210,611	15,312,755	14,965,455
Diluted earnings per share (in dollars per share)	$ 0.61	$ 0.42	$ 1.84	$ 1.02

Securities (Narrative) (Details

Securities (Narrative) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Impairment on other investments	$ 0
Collateral Pledged [Member]
Loans and Leases Receivable Disclosure [Line Items]
Available-for-sale securities pledged as collateral	$ 161,400,000	$ 80,200,000

Securities (Schedule of Availab

Securities (Schedule of Available-for-sale Securities Reconciliation) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Total	$ 336,340	$ 211,614
Gross Unrealized Gains	4,262	4,221
Gross Unrealized Losses	(1,259)	(201)
Fair Value	339,343	215,634
US Treasury Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Total	93,910
Gross Unrealized Gains	176
Gross Unrealized Losses	(61)
Fair Value	94,025
US Government-sponsored Enterprises Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Total	54,175	30,526
Gross Unrealized Gains	201	10
Gross Unrealized Losses	(913)	(6)
Fair Value	53,463	30,530
Municipal securities [Member]
Debt Securities, Available-for-sale [Line Items]
Total	93,422	89,644
Gross Unrealized Gains	2,179	2,345
Gross Unrealized Losses	(31)
Fair Value	95,570	91,989
Other Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Total	25,996	25,019
Gross Unrealized Gains	367	112
Gross Unrealized Losses	(72)	(13)
Fair Value	26,291	25,118
Mortgage-backed securities (GSEs) [Member]
Debt Securities, Available-for-sale [Line Items]
Total	68,837	66,425
Gross Unrealized Gains	1,339	1,754
Gross Unrealized Losses	(182)	(182)
Fair Value	$ 69,994	$ 67,997

Securities (Proceeds from sale

Securities (Proceeds from sale of securities available for sale, gains losses and proceeds from redemption) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales of securities available-for-sale	$ 16,771	$ 4,884	$ 16,771	$ 11,759
Gross gains	64	17	64	43
Losses realized	(19)	(26)	(19)	(37)
Proceeds from maturities and calls	$ 32,275	$ 30,350	$ 43,551	$ 45,800

Securities (Investments Classif

Securities (Investments Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Amortized Cost
Due in one year or less	$ 61,259
Due from one year to five years	3,817
Due from five years to ten years	90,688
Due after ten years	111,739
Securities available for sale, amortized cost	267,503
Total	336,340	$ 211,614
Fair Value
Due in one year or less	61,267
Due from one year to five years	3,843
Due from five years to ten years	91,409
Due after ten years	112,830
Securities available for sale, fair value	269,349
Total	339,343	$ 215,634
Mortgage-backed securities [Member]
Amortized Cost
Mortgage-backed securities	68,837
Fair Value
Mortgage-backed securities	$ 69,994

Securities (Schedule of Unreali

Securities (Schedule of Unrealized Loss on Investments) (Details) $ in Thousands	Sep. 30, 2021USD ($)security	Dec. 31, 2020USD ($)security
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 132,897	$ 26,795
Less than 12 Months, Gross Unrealized Losses	$ (1,133)	$ (97)
Available-for-sale, less than 12 months, number of securities | security	31	10
Available-for-sale, fair value, 12 months or greater	$ 9,621	$ 7,192
12 Months or Greater, Gross Unrealized Losses	$ (126)	$ (104)
Available-for-sale, 12 months or greater, number of securities | security	9	5
Total, Fair Value	$ 142,518	$ 33,987
Total, Gross Unrealized Losses	$ (1,259)	$ (201)
Available-for-sale, total, number of securities | security	40	15
US Treasury Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 76,626
Less than 12 Months, Gross Unrealized Losses	$ (61)
Available-for-sale, less than 12 months, number of securities | security	4
Total, Fair Value	$ 76,626
Total, Gross Unrealized Losses	$ (61)
Available-for-sale, total, number of securities | security	4
US Government-sponsored Enterprises Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 37,469	$ 15,510
Less than 12 Months, Gross Unrealized Losses	$ (910)	$ (5)
Available-for-sale, less than 12 months, number of securities | security	10	3
Available-for-sale, fair value, 12 months or greater	$ 841	$ 132
12 Months or Greater, Gross Unrealized Losses	$ (3)	$ (1)
Available-for-sale, 12 months or greater, number of securities | security	3	1
Total, Fair Value	$ 38,310	$ 15,642
Total, Gross Unrealized Losses	$ (913)	$ (6)
Available-for-sale, total, number of securities | security	13	4
Municipal securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 3,929
Less than 12 Months, Gross Unrealized Losses	$ (31)
Available-for-sale, less than 12 months, number of securities | security	3
Total, Fair Value	$ 3,929
Total, Gross Unrealized Losses	$ (31)
Available-for-sale, total, number of securities | security	3
Other Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 5,982	$ 1,495
Less than 12 Months, Gross Unrealized Losses	$ (72)	$ (5)
Available-for-sale, less than 12 months, number of securities | security	6	1
Available-for-sale, fair value, 12 months or greater		$ 977
12 Months or Greater, Gross Unrealized Losses		$ (8)
Available-for-sale, 12 months or greater, number of securities | security		1
Total, Fair Value	$ 5,982	$ 2,472
Total, Gross Unrealized Losses	$ (72)	$ (13)
Available-for-sale, total, number of securities | security	6	2
Mortgage-backed securities (GSEs) [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 8,891	$ 9,790
Less than 12 Months, Gross Unrealized Losses	$ (59)	$ (87)
Available-for-sale, less than 12 months, number of securities | security	8	6
Available-for-sale, fair value, 12 months or greater	$ 8,780	$ 6,083
12 Months or Greater, Gross Unrealized Losses	$ (123)	$ (95)
Available-for-sale, 12 months or greater, number of securities | security	6	3
Total, Fair Value	$ 17,671	$ 15,873
Total, Gross Unrealized Losses	$ (182)	$ (182)
Available-for-sale, total, number of securities | security	14	9

Securities (Other Investments)

Securities (Other Investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Other investments	$ 14,972	$ 14,794
Federal Reserve Bank Stock [Member]
Debt Securities, Available-for-sale [Line Items]
Other investments	8,171	8,606
Investment in Federal Home Loan Bank Stock [Member]
Debt Securities, Available-for-sale [Line Items]
Other investments	6,451	5,838
First National Bankers Bank Stock [Member]
Debt Securities, Available-for-sale [Line Items]
Other investments	$ 350	$ 350

Loans and Leases and Allowanc_3

Loans and Leases and Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	$ 2,652,663	$ 2,382,243
Less: Allowance for loan and leases losses	(19,295)	(18,346)
Loans and leases, net	2,633,368	2,363,897
Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	43,629	32,064
Less: Allowance for loan and leases losses	(427)	(309)
Loans and leases, net	43,202	31,755
All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	2,609,034	2,350,179
Less: Allowance for loan and leases losses	(18,868)	(18,037)
Loans and leases, net	2,590,166	2,332,142
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	1,313,247	1,012,976
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	23,156	16,123
Commercial Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	1,290,091	996,853
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	478,161	443,930
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	10,863	10,258
Consumer Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	467,298	433,672
Construction and Land Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	326,374	278,075
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	2,904	5,348
Construction and Land Development [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	323,470	272,727
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	469,739	634,446
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	2,871	308
Commercial and Industrial [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	466,868	634,138
Consumer and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	11,746	12,816
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	87	27
Consumer and Other [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	11,659	$ 12,789
Leases Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	53,396
Leases Portfolio Segment [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	3,748
Leases Portfolio Segment [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	$ 49,648

Loans and Leases and Allowanc_4

Loans and Leases and Allowance for Loan and Lease Losses - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)loanproperty	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)propertysegmentloan	Sep. 30, 2020USD ($)loan	Dec. 31, 2020USD ($)loan
Financing Receivable, Modifications [Line Items]
Loan portfolio segments | segment			6
Number of contracts | loan			0	1
Number of loans modified as troubled debt restructurings with subsequent default | loan			0
Provision (recovery) charged to expense	$ 1,149,000	$ 2,634,000	$ 1,211,000	$ 8,683,000
Allowance for loan losses	$ 19,295,000		$ 19,295,000		$ 18,346,000
Percentage of allowance for credit losses to aggregate loans	0.73%		0.73%		0.77%
Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of properties in other real estate owned | property	0		0
Provision (recovery) charged to expense	$ 205,000	$ 135,000	$ 96,000	$ 857,000
Mortgage loans in process of foreclosure	33,000		33,000
Trouble Debt Restructuring [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	$ 212,000		$ 212,000		$ 257,000
Number of contracts, nonaccrual | loan	0		0		0
COVID-19 [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | loan			0
Number of loans related to payroll protection program | loan	1,126		1,126		2,863
Payroll Protection Program Loans Outstanding	$ 87,100,000		$ 87,100,000		$ 288,900,000
Financing Receivable Paycheck Protection Program Cares Act For 2020 Loans [Member]
Financing Receivable, Modifications [Line Items]
Payroll protection program loans net deferred fees receivable	0		0		$ 4,200,000
Financing Receivable Paycheck Protection Program Cares Act For 2021 Loans [Member]
Financing Receivable, Modifications [Line Items]
Payroll protection program loans net deferred fees receivable	$ 3,800,000		$ 3,800,000

Loans and Leases and Allowanc_5

Loans and Leases and Allowance for Loan and Lease Losses - Performing and Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 2,652,663	$ 2,382,243
All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,609,034	2,350,179
Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	43,629	32,064
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,313,247	1,012,976
Commercial Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,290,091	996,853
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	23,156	16,123
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	478,161	443,930
Consumer Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	467,298	433,672
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	10,863	10,258
Construction and Land Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	326,374	278,075
Construction and Land Development [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	323,470	272,727
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,904	5,348
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	469,739	634,446
Commercial and Industrial [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	466,868	634,138
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,871	308
Leases Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	53,396
Leases Portfolio Segment [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	49,648
Leases Portfolio Segment [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	3,748
Consumer and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	11,746	12,816
Consumer and Other [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	11,659	12,789
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	87	27
Performing [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,605,660	2,344,846
Performing [Member] | Commercial Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,289,233	992,982
Performing [Member] | Consumer Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	464,881	432,356
Performing [Member] | Construction and Land Development [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	323,470	272,727
Performing [Member] | Commercial and Industrial [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	466,769	633,992
Performing [Member] | Leases Portfolio Segment [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	49,648
Performing [Member] | Consumer and Other [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	11,659	12,789
Impaired Loans [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	3,374	5,333
Impaired Loans [Member] | Commercial Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	858	3,871
Impaired Loans [Member] | Consumer Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,417	1,316
Impaired Loans [Member] | Commercial and Industrial [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 99	$ 146

Loans and Leases and Allowanc_6

Loans and Leases and Allowance for Loan and Lease Losses - ALL by Loan Classification (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	$ 19,295	$ 18,310	$ 18,346	$ 18,817	$ 16,254	$ 10,243
All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	18,868		18,037
Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	427		309
Performing [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	18,282		17,800
Impaired Loans [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	586		237
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	9,405	8,382	7,579	7,729	6,595	4,508
Commercial Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	9,344		7,579
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	61
Commercial Real Estate [Member] | Performing [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	8,927		7,579
Commercial Real Estate [Member] | Impaired Loans [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	417
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	3,541	3,323	3,471	3,444	3,313	2,576
Consumer Real Estate [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	3,386		3,383
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	155		88
Consumer Real Estate [Member] | Performing [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	3,316		3,267
Consumer Real Estate [Member] | Impaired Loans [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	70		116
Construction and Land Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	2,218	2,061	2,076	2,060	1,795	1,127
Construction and Land Development [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	2,218		2,076
Construction and Land Development [Member] | Performing [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	2,218		2,076
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	3,801	4,442	5,107	5,463	4,443	1,957
Commercial and Industrial [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	3,592		4,889
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	209		218
Commercial and Industrial [Member] | Performing [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	3,493		4,768
Commercial and Industrial [Member] | Impaired Loans [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	99		121
Leases Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	225
Leases Portfolio Segment [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	225
Leases Portfolio Segment [Member] | Performing [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	225
Consumer and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	105	$ 102	113	$ 121	$ 108	$ 75
Consumer and Other [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	103		110
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	2		3
Consumer and Other [Member] | Performing [Member] | All Other Loans and leases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan and lease losses	$ 103		$ 110

Loans and Leases and Allowanc_7

Loans and Leases and Allowance for Loan and Lease Losses - ALL Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 18,310	$ 16,254	$ 18,346	$ 10,243
Charged off loans	(241)	(170)	(514)	(331)
Recoveries of charge-offs	77	99	252	222
Provision (recovery) charged to expense	1,149	2,634	1,211	8,683
Ending balance	19,295	18,817	19,295	18,817
Commercial Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	8,382	6,595	7,579	4,508
Recoveries of charge-offs	23	11	29	16
Provision (recovery) charged to expense	1,000	1,123	1,797	3,205
Ending balance	9,405	7,729	9,405	7,729
Consumer Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,323	3,313	3,471	2,576
Charged off loans		(21)	(60)	(23)
Recoveries of charge-offs	13	17	34	34
Provision (recovery) charged to expense	205	135	96	857
Ending balance	3,541	3,444	3,541	3,444
Construction and Land Development [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,061	1,795	2,076	1,127
Recoveries of charge-offs				2
Provision (recovery) charged to expense	157	265	142	931
Ending balance	2,218	2,060	2,218	2,060
Commercial and Industrial [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,442	4,443	5,107	1,957
Charged off loans	(41)	(60)	(45)	(77)
Recoveries of charge-offs	3	55	13	103
Provision (recovery) charged to expense	(603)	1,025	(1,274)	3,480
Ending balance	3,801	5,463	3,801	5,463
Leases Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Charged off loans	(68)		(68)
Recoveries of charge-offs	5		5
Provision (recovery) charged to expense	288		288
Ending balance	225		225
Consumer and Other [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	102	108	113	75
Charged off loans	(132)	(89)	(341)	(231)
Recoveries of charge-offs	33	16	171	67
Provision (recovery) charged to expense	102	86	162	210
Ending balance	$ 105	$ 121	$ 105	$ 121

Loans and Leases and Allowanc_8

Loans and Leases and Allowance for Loan and Lease Losses - Loan Risk Rating (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 2,652,663	$ 2,382,243
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,313,247	1,012,976
Consumer Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	478,161	443,930
Construction and Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	326,374	278,075
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	469,739	634,446
Leases Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	53,396
Consumer and Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,746	12,816
All Other Loans and leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,609,034	2,350,179
All Other Loans and leases [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,551,469	2,247,263
All Other Loans and leases [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	47,648	91,611
All Other Loans and leases [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,612	4,812
All Other Loans and leases [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,260	6,359
All Other Loans and leases [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	45	134
All Other Loans and leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,290,091	996,853
All Other Loans and leases [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,245,064	922,153
All Other Loans and leases [Member] | Commercial Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	40,106	66,287
All Other Loans and leases [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,841	4,446
All Other Loans and leases [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,080	3,967
All Other Loans and leases [Member] | Consumer Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	467,298	433,672
All Other Loans and leases [Member] | Consumer Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	461,422	417,302
All Other Loans and leases [Member] | Consumer Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,490	14,218
All Other Loans and leases [Member] | Consumer Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,527	46
All Other Loans and leases [Member] | Consumer Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,859	2,020
All Other Loans and leases [Member] | Consumer Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		86
All Other Loans and leases [Member] | Construction and Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	323,470	272,727
All Other Loans and leases [Member] | Construction and Land Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	323,156	269,350
All Other Loans and leases [Member] | Construction and Land Development [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	240	3,296
All Other Loans and leases [Member] | Construction and Land Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	74	81
All Other Loans and leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	466,868	634,138
All Other Loans and leases [Member] | Commercial and Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	460,588	625,836
All Other Loans and leases [Member] | Commercial and Industrial [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,767	7,673
All Other Loans and leases [Member] | Commercial and Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	244	320
All Other Loans and leases [Member] | Commercial and Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	224	261
All Other Loans and leases [Member] | Commercial and Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	45	48
All Other Loans and leases [Member] | Leases Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	49,648
All Other Loans and leases [Member] | Leases Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	49,648
All Other Loans and leases [Member] | Consumer and Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,659	12,789
All Other Loans and leases [Member] | Consumer and Other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,591	12,622
All Other Loans and leases [Member] | Consumer and Other [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	45	137
All Other Loans and leases [Member] | Consumer and Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	23	30
Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	43,629	32,064
Purchased Credit Impaired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	29,227	20,749
Purchased Credit Impaired Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,583	7,427
Purchased Credit Impaired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	649	76
Purchased Credit Impaired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,170	3,812
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	23,156	16,123
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,769	11,072
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	7,719	3,381
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	579	19
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,089	1,651
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	10,863	10,258
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,473	8,382
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	754	224
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	70	57
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,566	1,595
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,904	5,348
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,344	1,008
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	91	3,820
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	469	520
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,871	308
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,824	262
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	46	46
Purchased Credit Impaired Loans [Member] | Leases Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,748
Purchased Credit Impaired Loans [Member] | Leases Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,748
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	87	27
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	69	25
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 18	$ 2

Loans and Leases and Allowanc_9

Loans and Leases and Allowance for Loan and Lease Losses - Past Due Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans	$ 3,567	$ 5,633
Total Past Due	6,549	8,235
Total loans	2,652,663	2,382,243
Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	2,602,485	2,341,944
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	2,726	2,321
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	256	132
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans		149
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans	858	3,740
Total Past Due	2,457	3,941
Total loans	1,313,247	1,012,976
Commercial Real Estate [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	1,287,634	992,912
Commercial Real Estate [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	1,599	134
Commercial Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans		67
Consumer Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans	2,564	1,823
Total Past Due	2,734	3,872
Total loans	478,161	443,930
Consumer Real Estate [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	464,564	429,800
Consumer Real Estate [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	170	1,916
Consumer Real Estate [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans		51
Consumer Real Estate [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans		82
Construction and Land Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans		12
Total Past Due	45	257
Total loans	326,374	278,075
Construction and Land Development [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	323,425	272,470
Construction and Land Development [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	45	245
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans	125	36
Total Past Due	681	124
Total loans	469,739	634,446
Commercial and Industrial [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	466,187	634,014
Commercial and Industrial [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	342	12
Commercial and Industrial [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	214	76
Leases Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	419
Total loans	53,396
Leases Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	49,229
Leases Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	377
Leases Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	42
Consumer and Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans	20	22
Total Past Due	213	41
Total loans	11,746	12,816
Consumer and Other [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	11,446	12,748
Consumer and Other [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	193	14
Consumer and Other [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans		5
Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	43,629	32,064
Purchased Credit Impaired Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	43,629	32,064
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	23,156	16,123
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	23,156	16,123
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	10,863	10,258
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	10,863	10,258
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	2,904	5,348
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	2,904	5,348
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	2,871	308
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	2,871	308
Purchased Credit Impaired Loans [Member] | Leases Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	3,748
Purchased Credit Impaired Loans [Member] | Leases Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	3,748
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	87	27
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing and Current Loans	$ 87	$ 27

Loans and Leases and Allowan_10

Loans and Leases and Allowance for Loan and Lease Losses - Impaired Loan Portfolio (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Related Allowance	$ 1,013		$ 1,013		$ 546
Total impaired loans, Recorded Investment	6,037		6,037		7,451
Total impaired loans, Unpaid Principal Balance	6,428		6,428		7,674
Impaired loans with a valuation allowance, Average Recorded Investment			1,711	$ 1,179
Impaired loans with a valuation allowance, Interest Income Recognized			122	27
Total impaired loans, Average Recorded Investment	6,118	$ 4,536	6,346	4,519
Total impaired loans, Interest Income Recognized	73	52	256	134
All Other Loans and leases [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	2,156		2,156		4,759
Impaired loans without a valuation allowance, Unpaid Principal Balance	2,157		2,157		4,760
Impaired loans with a valuation allowance, Recorded Investment	1,218		1,218		574
Impaired loans with a valuation allowance, Unpaid Principal Balance	1,220		1,220		574
Impaired loans with a valuation allowance, Related Allowance	586		586		237
Impaired loans without a valuation allowance, Average Recorded Investment	2,171	1,310	2,778	1,316
Impaired loans without a valuation allowance, Interest Income Recognized	19	6	40	24
Impaired loans with a valuation allowance, Average Recorded Investment	1,273	1,017
Impaired loans with a valuation allowance, Interest Income Recognized	5	6
All Other Loans and leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment					3,871
Impaired loans without a valuation allowance, Unpaid Principal Balance					3,872
Impaired loans with a valuation allowance, Recorded Investment	858		858
Impaired loans with a valuation allowance, Unpaid Principal Balance	858		858
Impaired loans with a valuation allowance, Related Allowance	417		417
Impaired loans without a valuation allowance, Average Recorded Investment		552	1,000	374
Impaired loans without a valuation allowance, Interest Income Recognized		3	1	7
Impaired loans with a valuation allowance, Average Recorded Investment	858	198	1,218	198
Impaired loans with a valuation allowance, Interest Income Recognized			104	2
All Other Loans and leases [Member] | Consumer Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	2,156		2,156		888
Impaired loans without a valuation allowance, Unpaid Principal Balance	2,157		2,157		888
Impaired loans with a valuation allowance, Recorded Investment	261		261		428
Impaired loans with a valuation allowance, Unpaid Principal Balance	263		263		428
Impaired loans with a valuation allowance, Related Allowance	70		70		116
Impaired loans without a valuation allowance, Average Recorded Investment	2,171	758	1,778	653
Impaired loans without a valuation allowance, Interest Income Recognized	19	3	39	17
Impaired loans with a valuation allowance, Average Recorded Investment	261	440	352	712
Impaired loans with a valuation allowance, Interest Income Recognized	3	4	11	18
All Other Loans and leases [Member] | Construction and Land Development [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Average Recorded Investment				289
All Other Loans and leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	99		99		146
Impaired loans with a valuation allowance, Unpaid Principal Balance	99		99		146
Impaired loans with a valuation allowance, Related Allowance	99		99		121
Impaired loans with a valuation allowance, Average Recorded Investment	154	379	141	269
Impaired loans with a valuation allowance, Interest Income Recognized	2	2	7	7
Purchased Credit Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	2,663		2,663		2,118
Impaired loans with a valuation allowance, Unpaid Principal Balance	3,051		3,051		2,340
Impaired loans with a valuation allowance, Related Allowance	427		427		309
Impaired loans with a valuation allowance, Average Recorded Investment	2,674	2,209	1,857	2,024
Impaired loans with a valuation allowance, Interest Income Recognized	49	40	94	83
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	1,206		1,206
Impaired loans with a valuation allowance, Unpaid Principal Balance	1,500		1,500
Impaired loans with a valuation allowance, Related Allowance	61		61
Impaired loans with a valuation allowance, Average Recorded Investment	1,230	8	410	250
Impaired loans with a valuation allowance, Interest Income Recognized	27		27	1
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	1,196		1,196		1,827
Impaired loans with a valuation allowance, Unpaid Principal Balance	1,318		1,318		2,086
Impaired loans with a valuation allowance, Related Allowance	155		155		88
Impaired loans with a valuation allowance, Average Recorded Investment	1,176	1,869	1,169	1,344
Impaired loans with a valuation allowance, Interest Income Recognized	21	38	64	77
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Average Recorded Investment				58
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	255		255		270
Impaired loans with a valuation allowance, Unpaid Principal Balance	228		228		234
Impaired loans with a valuation allowance, Related Allowance	209		209		218
Impaired loans with a valuation allowance, Average Recorded Investment	258	305	263	343
Impaired loans with a valuation allowance, Interest Income Recognized	1	2	3	5
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	6		6		21
Impaired loans with a valuation allowance, Unpaid Principal Balance	5		5		20
Impaired loans with a valuation allowance, Related Allowance	2		2		$ 3
Impaired loans with a valuation allowance, Average Recorded Investment	$ 10	$ 27	$ 15	$ 29

Loans and Leases and Allowan_11

Loans and Leases and Allowance for Loan and Lease Losses - Purchased Credit Impaired Loans (Details) - Purchased Credit Impaired Loans [Member] - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	$ 56,642	$ 44,973
Less remaining purchase discount	(13,013)	(12,909)
Total loans, net of purchase discount	43,629	32,064
Less: Allowance for loan losses	(427)	(309)
Carrying amount, net of allowance	43,202	31,755
Commercial Real Estate [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	31,664	23,787
Consumer Real Estate [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	13,211	12,692
Construction and Land Development [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	3,686	1,812
Commercial and Industrial [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	3,794	6,521
Leases Portfolio Segment [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	4,133
Consumer and Other [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	$ 154	$ 161

Loans and Leases and Allowan_12

Loans and Leases and Allowance for Loan and Lease Losses - Accretable Yield Roll Forward (Details) - Purchased Credit Impaired Loans [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable yield, beginning of period	$ 14,522	$ 11,777	$ 16,889	$ 8,454
Additions	4,072		4,721	2,515
Accretion income	(2,151)	(1,267)	(5,180)	(4,401)
Reclassification	254	265	1,931	2,428
Other changes, net	(1,034)	7,405	(2,698)	9,184
Accretable yield, end of period	$ 15,663	$ 18,180	$ 15,663	$ 18,180

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Goodwill, impairment loss					$ 0
Amortization of intangibles	$ 711,000	$ 402,000	$ 1,597,000	$ 1,169,000
Goodwill	89,984,000		89,984,000		$ 74,135,000	$ 65,614,000
Adjustment, due to Sale	2,500,000		2,463,000
Other Intangible Assets [Member]
Amortization of intangibles	$ 711,000	$ 402,000	$ 1,600,000	$ 1,200,000
Customer Relationships [Member]
Intangible asset, useful life			8 years 7 months 6 days
Trade Names [Member]
Intangible asset, useful life			5 years

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands	Mar. 01, 2020	Sep. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Goodwill, Beginning Balance			$ 74,135	$ 65,614
Adjustment, due to Sale		$ (2,500)	(2,463)
Goodwill, Ending Balance		89,984	89,984	74,135
Fountain Leasing Limited Liability Company [Member]
Goodwill [Roll Forward]
Acquisition of business			2,400
Progressive Financial Group Inc. [Member]
Goodwill [Roll Forward]
Adjustment to values initially recorded for acquisitions	$ (231)
Acquisition of business			323	$ 8,521
Goodwill, Ending Balance	$ 8,800	8,844	8,844
Sevier County Bancshares Inc [Member]
Goodwill [Roll Forward]
Acquisition of business			15,589
Goodwill, Ending Balance		$ 15,589	$ 15,589

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	$ 17,047	$ 14,550
Balance, gross core deposit intangible	21,255	17,047
Finite Lived Intangible Assets Accumulated Amortization [Abstract]
Gross Carrying Amount	21,255	17,047
Less: accumulated amortization	(6,309)	(4,711)
Total	14,946	12,336
Progressive Financial Group Inc. [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business		2,497
Fountain Leasing Limited Liability Company [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business	2,658
Sevier County Bancshares Inc [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business	1,550
Core Deposits [Member]
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	15,920	14,550
Balance, gross core deposit intangible	17,470	15,920
Finite Lived Intangible Assets Accumulated Amortization [Abstract]
Gross Carrying Amount	17,470	15,920
Less: accumulated amortization	(5,748)	(4,540)
Total	11,722	11,380
Core Deposits [Member] | Progressive Financial Group Inc. [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business		1,370
Core Deposits [Member] | Sevier County Bancshares Inc [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business	1,550
Customer Relationships [Member]
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	1,064
Balance, gross core deposit intangible	3,722	1,064
Finite Lived Intangible Assets Accumulated Amortization [Abstract]
Gross Carrying Amount	3,722	1,064
Less: accumulated amortization	(541)	(161)
Total	3,181	903
Customer Relationships [Member] | Progressive Financial Group Inc. [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business		1,064
Customer Relationships [Member] | Fountain Leasing Limited Liability Company [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business	2,658
Trade Names [Member]
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	63
Balance, gross core deposit intangible	63	63
Finite Lived Intangible Assets Accumulated Amortization [Abstract]
Gross Carrying Amount	63	63
Less: accumulated amortization	(20)	(10)
Total	$ 43	53
Trade Names [Member] | Progressive Financial Group Inc. [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business		$ 63

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2021	$ 660
2022	2,521
2023	2,356
2024	2,203
2025	2,041
Thereafter	5,165
Total	$ 14,946	$ 12,336

Borrowings, Line of Credit an_3

Borrowings, Line of Credit and Subordinated Debt - Additional Information (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Borrowings	$ 88,700	$ 81,200
Other borrowings	7,500	396
Securities sold under agreements to repurchase	6,248	5,803
Carrying value of securities pledged as collateral	5,600	$ 7,600
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	25,000
Outstanding borrowings	7,500
Remaining borrowing capacity	$ 17,500

Borrowings, Line of Credit an_4

Borrowings, Line of Credit and Subordinated Debt - Schedule of debt (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Borrowings, Line of Credit and Subordinated Debt [Abstract]
Securities sold under agreements to repurchase	$ 6,248	$ 5,803
Long-term federal home loan bank advances	75,000	75,000
Other Borrowings	7,500	396
Total	$ 88,748	$ 81,199

Borrowings, Line of Credit an_5

Borrowings, Line of Credit and Subordinated Debt - Subordinated debt (Details) - USD ($) $ in Thousands	Sep. 01, 2021	Sep. 30, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 28, 2018
Sevier County Bancshares Inc [Member]
Debt Instrument [Line Items]
Subordinated debt	$ 2,500	$ 2,500	$ 2,500
Subordinated Debt [Member]
Debt Instrument [Line Items]
Principal amount					$ 40,000
Interest rate					5.625%
Debt issuance costs		591	591	$ 654	$ 842
Amortization expense of debt issuance costs		$ 21	$ 63
Subordinated Debt [Member] | Sevier County Bancshares Inc [Member]
Debt Instrument [Line Items]
Interest rate	6.75%
Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)				2.55%
Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member] | Sevier County Bancshares Inc [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	5.3025%

Employee Benefit Plans (Narrati

Employee Benefit Plans (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021USD ($)shares	Sep. 30, 2020USD ($)	Sep. 30, 2021USD ($)planshares	Sep. 30, 2020USD ($)shares
Defined Benefit Plan Disclosure [Line Items]
Contribution to the Plan	$ 287	$ 282	$ 925	$ 840
Number of stock option plans | plan			1
Deferred tax expense from stock options exercised		3
Deferred tax benefit from stock options exercised			$ 9	$ 19
Unrecognized compensation cost	0		$ 0
Shares vested (in shares) | shares			0	0
Stock Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Share-based compensation expense	0	0	$ 0	$ 0
Options, exercises in period, intrinsic value		75	220	141
Options, outstanding, intrinsic value	$ 1,300		1,300
Proceeds from options exercised			194
Exercise of options | shares	0
Stock Appreciation Rights (SARs) [Member]
Defined Benefit Plan Disclosure [Line Items]
Share-based compensation expense	$ 49	(63)	$ 162
Share-based compensation income				(89)
Granted (in shares) | shares			22,000
Exercise of options | shares			23,500
Restricted Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Share-based compensation expense	163	$ 142	$ 525	$ 365
Unrecognized compensation cost	$ 1,600		$ 1,600
Unrecognized compensation costs, period for recognition			2 years 8 months 26 days
Grant-date fair value			$ 154
Vested (in shares) | shares			7,185
2015 Stock Incentive Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Rights available for grant (in shares) | shares	1,830,260		1,830,260
Cornerstone Bancshares, Inc. Long-Term Incentive Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Rights issued (in shares) | shares			19,250
Cornerstone Non-Qualified Plan Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Rights issued (in shares) | shares			40,250
Capstone Stock Option Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Rights issued (in shares) | shares			2,266
401 (k) Matching Range One [Member] | Deferred Salary Reduction Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution, percent of match			100.00%
Employer matching contribution, percent of employees gross pay			3.00%
401 (k) Matching Range Two [Member] | Deferred Salary Reduction Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution, percent of match			50.00%
Employer matching contribution, percent of employees gross pay			2.00%

Employee Benefit Plans - Stock

Employee Benefit Plans - Stock Option Activity (Details) - Officer and Employee Plans [Member]	9 Months Ended
	Sep. 30, 2021$ / sharesshares
Number
Outstanding (in shares) | shares	99,617
Exercised (in shares) | shares	(19,040)
Outstanding (in shares) | shares	80,577
Weighted Average Exercisable Price
Weighted Average Exercisable Price, Outstanding (in dollars per share) | $ / shares	$ 10.19
Weighted Average Exercisable Price Exercised (in dollars per share) | $ / shares	10.18
Weighted Average Exercise Price, Outstanding (in dollars per share) | $ / shares	$ 10.19

Employee Benefit Plans (Options

Employee Benefit Plans (Options Outstanding by Exercise Price Range) (Details) - Officer and Employee Plans [Member] - $ / shares	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 10.19	$ 10.19
Number Outstanding (in shares)	80,577	99,617
Options Outstanding, Weighted Average Remaining Life	1 year 11 months 12 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 10.19
Exercisable (in shares)	80,577
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 10.19
6.60 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 6.60
Number Outstanding (in shares)	19,250
Options Outstanding, Weighted Average Remaining Life	5 months 12 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 6.60
Exercisable (in shares)	19,250
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 6.60
9.48 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 9.48
Number Outstanding (in shares)	18,000
Options Outstanding, Weighted Average Remaining Life	1 year 5 months 12 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 9.48
Exercisable (in shares)	18,000
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 9.48
9.60 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 9.60
Number Outstanding (in shares)	22,250
Options Outstanding, Weighted Average Remaining Life	2 years 3 months
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 9.60
Exercisable (in shares)	22,250
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 9.60
11.76 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 11.76
Number Outstanding (in shares)	2,266
Options Outstanding, Weighted Average Remaining Life	9 months
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 11.76
Exercisable (in shares)	2,266
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 11.76
15.05 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 15.05
Number Outstanding (in shares)	18,811
Options Outstanding, Weighted Average Remaining Life	3 years 9 months
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 15.05
Exercisable (in shares)	18,811
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 15.05

Employee Benefit Plans (Schedul

Employee Benefit Plans (Schedule of Non-vested Restricted Stock) (Details) - Restricted Stock [Member]	9 Months Ended
	Sep. 30, 2021$ / sharesshares
Number
Nonvested, beginning of period (in shares) | shares	100,218
Granted (in shares) | shares	53,134
Vested (in shares) | shares	(7,185)
Forfeited/expired (in shares) | shares	(1,800)
Nonvested, end of period (in shares) | shares	144,367
Weighted Average Grant-Date Fair Value
Nonvested, beginning balance (in dollars per share) | $ / shares	$ 19.07
Granted (in dollars per share) | $ / shares	20.43
Vested (in dollars per share) | $ / shares	21.42
Forfeited/expired (in dollars per share) | $ / shares	16.37
Nonvested, ending balance (in dollars per share) | $ / shares	$ 19.49

Employee Benefit Plans - Stoc_2

Employee Benefit Plans - Stock Appreciation Right Activity (Details) - Stock Appreciation Rights (SARs) [Member]	9 Months Ended
	Sep. 30, 2021$ / sharesshares
Number
Outstanding (in shares) | shares	73,000
Stock awards (in shares) | shares	22,000
Exercised (in shares) | shares	(23,500)
Forfeited (in shares) | shares	(6,000)
Outstanding (in shares) | shares	65,500
Weighted Average Exercisable Price
Weighted Average Exercisable Price, Outstanding (in dollars per share) | $ / shares	$ 19.02
Granted (in dollars per share) | $ / shares	20.70
Weighted Average Exercisable Price Exercised (in dollars per share) | $ / shares	21.61
Weighted Average Exercisable Price Forfeited (in dollars per share) | $ / shares	18
Weighted Average Exercise Price, Outstanding (in dollars per share) | $ / shares	$ 18.75

Employee Benefit Plans - SARs O

Employee Benefit Plans - SARs Outstanding by Exercise Price Range (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 18.75	$ 19.02
Number Outstanding (in shares)	65,500	73,000
SARs Outstanding, Weighted Average Remaining Life	1 year 11 months 12 days
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 18.75
SARs Exercisable, Number Exercisable (in shares)	10,500
SARs Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 21.61
15.19 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 15.19
Number Outstanding (in shares)	16,000
SARs Outstanding, Weighted Average Remaining Life	2 years 3 months
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 15.19
18.12 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 18.12
Number Outstanding (in shares)	19,000
SARs Outstanding, Weighted Average Remaining Life	1 year 3 months
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 18.12
20.70 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 20.70
Number Outstanding (in shares)	20,000
SARs Outstanding, Weighted Average Remaining Life	3 years 3 months
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 20.70
21.61 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 21.61
Number Outstanding (in shares)	10,500
SARs Outstanding, Weighted Average Remaining Life	3 months
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 21.61
SARs Exercisable, Number Exercisable (in shares)	10,500
SARs Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 21.61

Commitments and Contingencies_2

Commitments and Contingencies (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments to extend credit	$ 616,271	$ 476,841
Standby letters of credit	$ 10,439	$ 5,261

Fair Value Disclosures - Assets

Fair Value Disclosures - Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	$ 339,343	$ 215,634
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	0
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount	0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount	0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	339,343	215,634
Derivative financial instruments	4,180	6,174
US Treasury Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	94,025
US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	53,463	30,530
Municipal securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	95,570	91,989
Other Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	26,291	25,118
Mortgage-backed securities (GSEs) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	69,994	67,997
Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	339,343	215,634
Derivative financial instruments	4,180	6,174
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	339,343	215,634
Derivative financial instruments	4,180	6,174
Fair Value, Recurring [Member] | US Treasury Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	94,025
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	94,025
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	53,463	30,530
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	53,463	30,530
Fair Value, Recurring [Member] | Municipal securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	95,570	91,989
Fair Value, Recurring [Member] | Municipal securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	95,570	91,989
Fair Value, Recurring [Member] | Other Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	26,291	25,118
Fair Value, Recurring [Member] | Other Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	26,291	25,118
Fair Value, Recurring [Member] | Mortgage-backed securities (GSEs) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	69,994	67,997
Fair Value, Recurring [Member] | Mortgage-backed securities (GSEs) [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	$ 69,994	$ 67,997

Fair Value Disclosures (Assets

Fair Value Disclosures (Assets and Liabilities Measured on Nonrecurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
OREO	$ 2,415	$ 4,619
Collateral dependent loans	2,868	2,455
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
OREO	2,415	4,619
Collateral dependent loans	$ 2,868	$ 2,455

Fair Value Disclosures - Unobse

Fair Value Disclosures - Unobservable Inputs (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent loans	$ 2,868,000	$ 2,455,000
OREO	2,415,000	4,619,000
Fair Value, Inputs, Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent loans	2,868,000	2,455,000
OREO	2,415,000	4,619,000
Appraisal And Discounted Cash Flow [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent loans	2,868,000	2,455,000
OREO	$ 2,415,000	$ 4,619,000
Appraisal And Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Collateral dependent, measurement input	26	9
OREO, measurement input	10	22

Fair Value Disclosures - Carryi

Fair Value Disclosures - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets:
Securities available-for-sale, at fair value	$ 339,343	$ 215,634
Liabilities:
Noninterest-bearing demand deposits	977,180	685,957
Interest-bearing demand deposits	847,007	649,129
Time deposits	585,692	550,498
Carrying Amount [Member]
Assets:
Cash and cash equivalents	1,091,160	481,719
Securities available-for-sale, at fair value	339,343	215,634
Other investments	14,972	14,794
Loans, net and loans held for sale	2,636,786	2,375,618
Liabilities:
Noninterest-bearing demand deposits	977,180	685,957
Interest-bearing demand deposits	847,007	649,129
Money market and savings deposits	1,389,393	919,631
Time deposits	585,692	550,498
Borrowings	88,748	81,199
Subordinated debt	41,909	39,346
Derivative financial instruments	4,180	6,174
Estimated Fair Value [Member]
Assets:
Cash and cash equivalents	1,091,160	481,719
Securities available-for-sale, at fair value	339,343	215,634
Loans, net and loans held for sale	2,630,239	2,377,581
Liabilities:
Noninterest-bearing demand deposits	977,180	685,957
Interest-bearing demand deposits	847,007	649,129
Money market and savings deposits	1,389,393	919,631
Time deposits	587,954	554,120
Borrowings	89,669	82,892
Subordinated debt	43,645	40,550
Derivative financial instruments	4,180	6,174
Fair Value, Inputs, Level 1 [Member]
Assets:
Cash and cash equivalents	1,091,160	481,719
Fair Value, Inputs, Level 2 [Member]
Assets:
Securities available-for-sale, at fair value	339,343	215,634
Liabilities:
Noninterest-bearing demand deposits	977,180	685,957
Interest-bearing demand deposits	847,007	649,129
Money market and savings deposits	1,389,393	919,631
Time deposits	587,954	554,120
Borrowings	89,669	82,892
Derivative financial instruments	4,180	6,174
Fair Value, Inputs, Level 3 [Member]
Assets:
Loans, net and loans held for sale	2,630,239	2,377,581
Liabilities:
Subordinated debt	$ 43,645	$ 40,550

Derivatives Financial Instrum_3

Derivatives Financial Instruments - Fair Value Hedges on Balance Sheet (Details) - Interest Rate Swap Liability [Member] - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Weighted Average Remaining Maturity (In Years)	5 years 8 months 26 days	7 years 1 month 17 days
Weighted Average Pay Rate	3.09%	3.08%
Notional Amount	$ 36,000	$ 36,000
Estimated Fair Value	$ (4,180)	$ (6,174)

Derivatives Financial Instrum_4

Derivatives Financial Instruments - Fair Value Hedges on Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Reported interest income on tax-exempt securities	$ 331	$ 364	$ 894	$ 1,064
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on fair value hedging relationship	288	299	1,994	(3,345)
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest income on tax-exempt securities	549	565	1,675	1,586
Effects of fair value hedge relationships	(218)	(201)	(781)	(522)
Reported interest income on tax-exempt securities	331	364	894	1,064
Gain (loss) on fair value hedging relationship	$ (288)	$ (299)	$ (1,994)	$ 3,345

Derivatives Financial Instrum_5

Derivatives Financial Instruments - Fair Value Hedges in Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Carrying amount of hedged asset	$ 43,258	$ 44,017
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets	$ 448	$ (1,063)

Derivatives Financial Instrum_6

Derivatives Financial Instruments - Interest Rate Swaps related to Loan Hedging Program (Details) - Interest Rate Swap [Member] - Non-hedged derivatives [Member] - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Notional Amount, Asset	$ 14,718
Estimated Fair Value, Asset	250
Notional Amount, Liability	14,718
Estimated Fair Value, Liability	(250)
Notional Amount	29,436
Estimated Fair Value

Derivatives Financial Instrum_7

Derivatives Financial Instruments - Interest Rate Swaps to Facilitate Customer's Transactions (Details) - Interest Rate Swap [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Transaction on income statement	$ 288	$ 299	$ 1,994	$ (3,345)
Non-hedged derivatives [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Transaction on income statement	$ 479		$ 489

Leases - Lease Assets and Liabi

Leases - Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease right-of-use assets	$ 6,104	$ 4,797
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets	Other Assets
Operating lease liabilities	$ 6,154	$ 4,827
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities
Lessee, Operating Lease, Existence of Option to Extend [true false]	true

Leases (Narrative) (Details)

Leases (Narrative) (Details)	Sep. 30, 2021
Leases [Abstract]
Weighted average remaining lease term	10 years 9 months 18 days
Weighted average discount rate	2.39%

Leases - Lease Costs and Other

Leases - Lease Costs and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Lease costs:
Operating lease costs	$ 270	$ 272	$ 764	$ 779
Variable lease costs	18	29	66	84
Total	288	301	830	863
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 257	$ 264	$ 740	$ 759

Leases - Future Minimum Payment

Leases - Future Minimum Payments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Leases [Abstract]
2022	$ 253
2023	985
2024	744
2025	528
2026	515
Thereafter	4,059
Total future minimum lease payments	7,084
Amounts representing interest	(930)
Present value of net future minimum lease payments	$ 6,154	$ 4,827

Regulatory Matters (Narrative)

Regulatory Matters (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021
Banking and Thrift [Abstract]
Dividends		$ 10
Common stock dividends (in dollars per share)	$ 0.06	$ 0.06

Regulatory Matters (Regulatory

Regulatory Matters (Regulatory Capital Levels) (Details) $ in Thousands	Sep. 30, 2021USD ($)	Dec. 31, 2020USD ($)
SmartFinancial, Inc. [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital (to Risk-Weighted Assets), Actual Amount	$ 381,766	$ 329,431
Tier 1 Capital (to Risk-Weighted Assets), Actual Amount	320,562	271,739
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Amount	320,562	271,739
Tier 1 Capital (to Average Assets), Actual Amount	$ 320,562	$ 271,739
Total Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	12.92	14.07
Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	10.85	11.61
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	10.85%	11.61%
Tier 1 Capital (to Average Assets), Actual Ratio (as a percent)	8.36	8.70
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	$ 236,367	$ 187,303
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	177,275	140,477
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	132,956	105,358
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Amount	$ 153,417	$ 125,002
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent)	8	8
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent)	6	6
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent)	4.50%	4.50%
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Ratio (as a percent)	4	4
Smart Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital (to Risk-Weighted Assets), Actual Amount	$ 371,740	$ 317,660
Tier 1 Capital (to Risk-Weighted Assets), Actual Amount	352,445	299,314
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Amount	352,445	299,314
Tier 1 Capital (to Average Assets), Actual Amount	$ 352,445	$ 299,314
Total Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	12.59	13.57
Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	11.94	12.78
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	11.94%	12.78%
Tier 1 Capital (to Average Assets), Actual Ratio (as a percent)	9.20	9.58
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	$ 236,244	$ 187,294
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	177,183	140,470
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	132,887	105,353
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Amount	$ 153,185	$ 124,969
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent)	8	8
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent)	6	6
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent)	4.50%	4.50%
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Ratio (as a percent)	4	4
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount	$ 295,304	$ 234,117
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount	236,244	187,294
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount	191,948	152,176
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Amount	$ 191,481	$ 156,212
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio (as a percent)	10	10
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio (as a percent)	8	8
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio (as a percent)	6.50%	6.50%
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio (as a percent)	5	5

Other comprehensive income (l_3

Other comprehensive income (loss) (Activity in Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
BALANCE	$ 373,393	$ 343,488	$ 357,168	$ 312,747
BALANCE	424,720	349,789	424,720	349,789
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
BALANCE	2,051	2,668	2,968	391
Other comprehensive income (loss)	210	(65)	(707)	2,201
Reclassification of amounts included in net income	(33)	(7)	(33)	4
Net other comprehensive income (loss) during period	177	(72)	(740)	2,205
BALANCE	2,228	2,596	2,228	2,596
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
BALANCE	287	(2,076)	(785)	(223)
Other comprehensive income (loss)	44	492	1,116	(1,361)
Net other comprehensive income (loss) during period	44	492	1,116	(1,361)
BALANCE	331	(1,584)	331	(1,584)
AOCI Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
BALANCE	2,338	592	2,183	168
Other comprehensive income (loss)	254	427	409	840
Reclassification of amounts included in net income	(33)	(7)	(33)	4
Net other comprehensive income (loss) during period	221	420	376	844
BALANCE	$ 2,559	$ 1,012	$ 2,559	$ 1,012