SmartFinancial (SMBK) 10-K 16 Mar 21 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Mar. 08, 2021	Jun. 30, 2020
Cover page [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
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 per share
Trading Symbol	SMBK
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
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 Public Float			$ 224.1
Entity Common Stock, Shares Outstanding		15,113,045
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Entity Central Index Key	0001038773
Current Fiscal Year End Date	--12-31
Icfr Auditor Attestation Flag	true

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS:
Cash and due from banks	$ 50,460	$ 33,205
Interest-bearing deposits with banks	364,846	127,329
Federal funds sold	66,413	23,437
Total cash and cash equivalents	481,719	183,971
Securities available-for-sale, at fair value	215,634	178,348
Other investments	14,794	12,913
Loans held for sale	11,721	5,856
Loans	2,382,243	1,897,392
Less: Allowance for loan losses	(18,346)	(10,243)
Loans, net	2,363,897	1,887,149
Premises and equipment, net	72,682	59,433
Other real estate owned	4,619	1,757
Goodwill and core deposit intangible, net	86,471	77,193
Bank owned life insurance	31,215	24,949
Other assets	22,197	17,554
Total assets	3,304,949	2,449,123
Deposits:
Noninterest-bearing demand	685,957	364,155
Interest-bearing demand	649,129	380,234
Money market and savings	919,631	623,284
Time deposits	550,498	679,541
Total deposits	2,805,215	2,047,214
Borrowings	81,199	31,623
Subordinated debt	39,346	39,261
Other liabilities	22,021	18,278
Total liabilities	2,947,781	2,136,376
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; 15,107,214 and 14,008,233 shares issued and outstanding, respectively	15,107	14,008
Additional paid-in capital	252,693	232,732
Retained earnings	87,185	65,839
Accumulated other comprehensive income (loss)	2,183	168
Total stockholders' equity	357,168	312,747
Total liabilities and stockholders' equity	$ 3,304,949	$ 2,449,123

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
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 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)	15,107,214	14,008,233
Common stock, shares outstanding (in shares)	15,107,214	14,008,233

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Interest Income:
Loans, including fees	$ 112,312	$ 101,002
Securities available-for-sale:
Taxable	2,423	3,289
Tax-exempt	1,369	1,518
Federal funds sold and other earning assets	1,509	2,646
Total interest income	117,613	108,455
Interest Expense:
Deposits	13,597	21,915
Borrowings	816	319
Subordinated debt	2,334	2,341
Total interest expense	16,747	24,575
Net interest income	100,866	83,880
Provision for loan losses	8,683	2,599
Net interest income after provision for loan losses	92,183	81,281
Noninterest Income:
Service charges on deposit accounts	3,403	2,902
Gain on sale of securities	6	34
Mortgage banking	3,875	1,566
Investment services	1,566	946
Insurance commissions	1,850
Interchange and debit card transaction fees, net	2,413	628
Merger termination fee	0	6,400
Other	2,313	2,839
Total noninterest income	15,426	15,315
Noninterest Expense:
Salaries and employee benefits	42,911	36,635
Occupancy and equipment	8,348	6,716
FDIC insurance	1,190	140
Other real estate and loan related expenses	2,050	1,320
Advertising and marketing	834	983
Data processing	2,281	1,995
Professional services	2,958	2,375
Aggregate amortization expense of core deposit premium intangible	1,740	1,368
Software as services contracts	2,195	2,195
Merger related and restructuring expenses	4,565	3,219
Other	7,647	6,205
Total noninterest expenses	76,719	63,151
Income before income tax expense	30,890	33,445
Income tax expense	6,558	6,897
Net Income (Loss) Available to Common Stockholders, Basic, Total	$ 24,332	$ 26,548
Earnings per common share:
Basic (in dollars per share)	$ 1.63	$ 1.90
Diluted (in dollars per share)	$ 1.62	$ 1.89
Weighted average common shares outstanding:
Basic (in shares)	14,955,423	13,953,497
Diluted (in shares)	15,019,175	14,046,366

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 24,332	$ 26,548
Other comprehensive income:
Unrealized holding gains (losses) and hedge effects on securities available-for-sale arising during the period	3,495	3,092
Tax effect	(914)	(802)
Reclassification adjustment for realized (gains) losses included in net income	(6)	(34)
Tax effect	2	9
Unrealized gains (losses) on securities available-for-sale arising during the period, net of tax	2,577	2,265
Unrealized gains (losses) on fair value municipal security hedges	(761)	905
Tax effect	199	(237)
Unrealized gains (losses) on fair value municipal security hedge instruments arising during the period, net of tax	(562)	668
Total other comprehensive income	2,015	2,933
Comprehensive income	$ 26,347	$ 29,481

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Parent [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE (in shares)		13,933,504
BALANCE at Dec. 31, 2018		$ 13,933	$ 231,852	$ 39,991	$ (2,765)	$ 283,011
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 26,548			26,548		26,548
Other comprehensive gain (loss)					2,933	2,933
Stock awards		$ 3	61			64
Granted (in shares)		3,298
Exercise of stock options		$ 32	342			374
Exercise of stock options (in shares)		31,931
Restricted stock		$ 40	(40)
Restricted stock (in shares)		39,500
Stock compensation expense			517			517
Common stock dividends				(700)		(700)
BALANCE at Dec. 31, 2019	312,747	$ 14,008	232,732	65,839	168	312,747
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE (in shares)		14,008,233
Net income	24,332			24,332		24,332
Other comprehensive gain (loss)					2,015	2,015
Exercise of stock options		$ 33	306			339
Exercise of stock options (in shares)		33,556
Restricted stock		$ 38	(38)
Restricted stock (in shares)		38,113
Common stock issued to shareholders		$ 1,293	23,254			24,547
Common stock issued to shareholders (in shares)		1,292,578
Stock compensation expense			482			482
Common stock dividends				(2,986)		(2,986)
Repurchases of common stock		$ (265)	(4,043)			(4,308)
Repurchases of common stock (in shares)		(265,266)
BALANCE at Dec. 31, 2020	$ 357,168	$ 15,107	$ 252,693	$ 87,185	$ 2,183	$ 357,168
Increase (Decrease) in Stockholders' Equity [Roll Forward]
BALANCE (in shares)		15,107,214

CONSOLIDATED STATEMENT OF CHA_2

CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Common stock dividend, per share	$ 0.20	$ 0.05

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 24,332	$ 26,548
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,021	4,300
Accretion of fair value purchase accounting adjustments, net	(4,457)	(5,712)
Provision for loan losses	8,683	2,599
Stock compensation expense	482	517
Gain from redemption and sale of securities available-for-sale	(6)	(34)
Deferred income tax expense	(1,219)	780
Increase in cash surrender value of bank owned life insurance	(707)	(568)
Loss on disposal of fixed assets		35
Net (gains) losses from sale of other real estate owned	187	(17)
Net gains from sale of loans	(3,875)	(1,566)
Origination of loans held for sale	(143,022)	(69,056)
Proceeds from sales of loans held for sale	141,031	66,744
Net change in:
Accrued interest receivable	(2,456)	(347)
Accrued interest payable	(156)	398
Other assets	4,529	(2,106)
Other liabilities	(298)	7,351
Net cash provided by operating activities	29,069	29,866
Cash flows from investing activities:
Proceeds from sales of securities available-for-sale	11,759	16,515
Proceeds from maturities and calls of securities available-for-sale	49,633	15,555
Proceeds from paydowns of securities available-for-sale	26,562	14,258
Proceeds from sales of other investments	34
Purchases of securities available-for-sale	(94,146)	(17,601)
Purchase of other investments	(1,223)	(1,414)
Net increase in loans	(293,964)	(117,216)
Purchase of premises and equipment	(5,439)	(6,269)
Proceeds from sale of other assets owned	1,314	1,395
Net cash and cash equivalents received from business combination	46,132
Net cash used in investing activities	(259,338)	(94,777)
Cash flow from financing activities:
Net increase in deposits	485,396	124,698
Net increase (decrease) in securities sold under agreements to repurchase	(381)	(5,572)
Proceeds from borrowings	339,675	153,581
Repayment borrowings	(289,718)	(139,385)
Cash dividends paid	(2,986)	(700)
Issuance of common stock	339	438
Repurchase of common stock	(4,308)
Net cash provided by financing activities	528,017	133,060
Net change in cash and cash equivalents	297,748	68,149
Cash and cash equivalents, beginning of year	183,971	115,822
Cash and cash equivalents, end of period	481,719	183,971
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	16,903	24,177
Cash paid during the period for income taxes	8,654	6,765
Cash received from income tax refunds	48	561
Noncash investing and financing activities:
Acquisition of real estate through foreclosure	971	639
Transfer from bank premises to other real estate owned	1,221
Change in goodwill due to acquisitions	8,521	(473)
Initial recognition of operating lease right-of-use assets	484	6,081
Initial recognition of operating lease liabilities	$ 484	$ 6,081

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 1. Summary of Significant Accounting Policies Nature of Business: SmartFinancial, Inc. (the "Company") 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 Florida panhandle. The Company’s primary deposit products are 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: The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary. All significant intercompany accounts and transactions have been eliminated in consolidation. ​ Accounting Estimates: In preparing the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet, and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, the valuation of other real estate owned and deferred taxes, other than temporary impairments of securities, the fair value of financial instruments, goodwill, and business combination elements (Day 1 and Day 2 Valuation). ​ Cash and Cash Equivalents: For purposes of reporting consolidated cash flows, cash and due from banks includes cash on hand, cash items in process of collection and amounts due from banks. Cash and cash equivalents also includes interest-bearing deposits in banks and federal funds sold. Cash flows from loans, federal funds sold, securities sold under agreements to repurchase and deposits are reported net. The in cash or on deposit Bank is required to maintain average balances with the Federal Reserve Bank. During 2020 the Federal Reserve Bank suspended reserve requirements to provide relief related to the COVID-19 pandemic, thus the Bank did not have a reserve requirement at December 31, 2020. The reserve requirement was $49.2 million at December 31, 2019. ​ Securities: Management has classified all securities as available-for-sale. Securities available-for-sale are recorded at fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income. Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method. The Company evaluates securities quarterly for other than temporary impairment using relevant accounting guidance specifying that (a) if the Company does not have the intent to sell a debt security prior to recovery and (b) it is more likely than not that it will not have to sell the debt security prior to recovery, the security would not be considered other than temporarily impaired unless a credit loss has occurred in the security. If management does not intend to sell the security and it is more likely than not that they will not have to sell the security before recovery of the cost basis, management will recognize the credit component of an other-than- temporary impairment of a debt security in earnings and the remaining portion in other comprehensive income. Securities borrowed or purchased under agreements to resell and securities loaned or sold under agreements to repurchase are treated as collateralized financial transactions. These agreements are recorded at the amount at which the securities were acquired or sold plus accrued interest. It is the Company’s policy to take possession of securities purchased under resale agreements. The market value of these securities is monitored, and additional securities are obtained when deemed appropriate to ensure such transactions are adequately collateralized. The Company also monitors its exposure with respect to securities sold under repurchase agreements, and a request for the return of excess securities held by the counterparty is made when deemed appropriate. ​ Other Investments: The Company is required to maintain an investment in capital stock of various entities. Based on redemption provisions of these entities, the stock has no quoted market value and is carried at cost. At their discretion, these entities may declare dividends on the stock. Management reviews restricted investments for impairment based on the ultimate recoverability of the cost basis in these stocks. ​ Loans Held for Sale: Loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or estimated fair value. Gains and losses on sales of loans held for sale are included in the Consolidated Statements of Income in mortgage banking. Loans held for sale are sold to investors with best effort intent and ability to sell loans as long as they meet the underwriting standards of the potential investor. ​ Loans: Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off are reported at their outstanding principal balances less deferred fees and costs on originated loans and the allowance for loan losses. Interest income is accrued on the outstanding principal balance. Loan origination fees, net of certain direct origination costs of consumer and installment loans are recognized at the time the loan is placed on the books. Loan origination fees for all other loans are deferred and recognized as an adjustment of the yield over the life of the loan using the straight-line method without anticipating prepayments. The accrual of interest on loans is discontinued when, in management’s opinion, the borrower may be unable to meet the contractual terms of the obligation payments as they become due, or at the time the loan is 90 days past due, unless the loan is well-secured and in the process of collection. Unsecured loans are typically charged off no later than 120 days past due. Past due status is based on contractual terms of the loan. In all cases, loans are placed on nonaccrual or charged-off at an earlier date if collection of principal and interest is considered doubtful. All interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income or charged to the allowance, unless management believes that the accrual of interest is recoverable through the liquidation of collateral. Interest income on nonaccrual loans is recognized on the cash basis, until the loans are returned to accrual status. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and the loan has been performing according to the contractual terms for a period of not less than six months. ​ Acquired Loans: Acquired loans are those acquired in business combinations by the Company or Bank. The fair values of acquired loans with evidence of credit deterioration, Purchased Credit Impaired loans (“PCI loans”), are recorded net of a nonaccretable discount and accretable discount. Any excess of cash flows expected at acquisition over the estimated fair value is referred to as the accretable discount and is recognized in interest income over the remaining life of the loan when there is reasonable expectation about the amount and timing of such cash flows. The difference between contractually required payments at acquisition and the cash flows expected to be collected at acquisition is the nonaccretable discount, which is included in the carrying amount of acquired loans. Subsequent decreases to the expected cash flows will generally result in a provision for loan losses. Subsequent significant increases in cash flows result in a reversal of the provision for loan losses to the extent of prior charges or a reclassification of the difference from nonaccretable to accretable with a positive impact on the accretable discount. Acquired loans are initially recorded at fair value at acquisition date. Accretable discounts related to certain fair value adjustments are accreted into income over the estimated lives of the loans. The Company accounts for PCI loans acquired in the acquisition using the expected cash flows method of recognizing discount accretion based on the acquired loans’ expected cash flows. Management recasts the estimate of cash flows expected to be collected on each acquired impaired loan pool periodically. If the present value of expected cash flows for a pool is less than its carrying value, an impairment is recognized by an increase in the allowance for loan losses and a charge to the provision for loan losses. If the present value of expected cash flows for a pool is greater than its carrying value, any previously established allowance for loan losses is reversed and any remaining difference increases the accretable yield which will be taken into interest income over the remaining life of the loan pool. Purchased performing loans are recorded at fair value, including a credit discount. Credit losses on acquired performing loans are estimated based on analysis of the performing portfolio at the time of purchase. Such estimated credit losses are recorded as nonaccretable discounts in a manner similar to purchased impaired loans. The fair value discount other than for credit loss is accreted as an adjustment to yield over the estimated lives of the loans. A provision for loan losses is recorded for any deterioration in these loans subsequent to the acquisition. ​ Allowance for Loan Losses: The allowance for loan losses is established as losses are estimated to have occurred through a provision for loan losses charged to expense. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Confirmed losses are charged off immediately. Subsequent recoveries, if any, are credited to the allowance. The allowance is an amount that management believes will be adequate to absorb estimated losses relating to specifically identified loans, as well as probable credit losses inherent in the balance of the loan portfolio. The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of the uncollectibility of loans in light of historical experience, the nature and volume of the loan portfolio, overall portfolio quality, review of specific problem loans, current economic conditions that may affect the borrower’s ability to pay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. This evaluation does not include the effects of expected losses on specific loans or groups of loans that are related to future events or expected changes in economic conditions. The allowance consists of specific and general components. The specific component relates to loans that are classified as impaired. For impaired loans, an allowance is established when the discounted cash flows, collateral value, or observable market price of the impaired loan is lower than the carrying value of that loan. The general component covers non-impaired loans and is based on the Company’s historical loss experience adjusted for other qualitative factors. Other adjustments may be made to the allowance for pools of loans after an assessment of internal or external influences on credit quality that are not fully reflected in the historical loss or risk rating data. An unallocated component may be maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the methodologies for estimating specific and general losses in the portfolio. As part of the risk management program, an independent review is performed on the loan portfolio according to policy, which supplements management’s assessment of the loan portfolio and the allowance for loan losses. The result of the independent review is reported directly to the Audit Committee of the Board of Directors. Loans, for which the terms have been modified at the borrower’s request, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings and classified as impaired. A loan is considered impaired when it is probable, based on current information and events, the Company will be unable to collect all principal and interest payments due in accordance with the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest when due. Loans that experience insignificant payment delays and payment shortfalls are not classified as impaired. Impaired loans are measured by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Interest on accruing impaired loans is recognized as long as such loans do not meet the criteria for nonaccrual status. Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. The Company’s homogeneous loan pools include consumer real estate loans, commercial real estate loans, construction and land development loans, commercial and industrial loans, and consumer and other loans. The general allocations to these loan pools are based on the historical loss rates for specific loan types and the internal risk grade, if applicable, adjusted for both internal and external qualitative risk factors. ​ Troubled Debt Restructurings: The Company designates loan modifications as Troubled Debt Restructurings ("TDRs") when for economic and legal reasons related to the borrower’s financial difficulties, it grants a concession to the borrower that it would not otherwise consider. TDRs can involve loans remaining on nonaccrual, moving to nonaccrual, or continuing on accrual status, depending on the individual facts and circumstances of the borrower. In circumstances where the TDR involves charging off a portion of the loan balance, the Company typically classifies these restructurings as nonaccrual. In connection with restructurings, the decision to maintain a loan that has been restructured on accrual status is based on a current, well documented credit evaluation of the borrower’s financial condition and prospects for repayment under the modified terms. This evaluation includes consideration of the borrower’s current capacity to pay, which among other things may include a review of the borrower’s current financial statements, an analysis of global cash flow sufficient to pay all debt obligations, a debt to income analysis, and an evaluation of secondary sources of payment from the borrower and any guarantors. This evaluation also includes an evaluation of the borrower’s current willingness to pay, which may include a review of past payment history, an evaluation of the borrower’s willingness to provide information on a timely basis, and consideration of offers from the borrower to provide additional collateral or guarantor support. The credit evaluation also reflects consideration of the borrower’s future capacity and willingness to pay, which may include evaluation of cash flow projections, consideration of the adequacy of collateral to cover all principal and interest, and trends indicating improving profitability and collectability of receivables. Restructured nonaccrual loans may be returned to accrual status based on a current, well-documented credit evaluation of the borrower’s financial condition and prospects for repayment under the modified terms. This evaluation must include consideration of the borrower’s sustained historical repayment for a reasonable period, generally a minimum of six months, prior to the date on which the loan is returned to accrual status. ​ Other Real Estate Owned: Other real estate owned acquired through, or in lieu of, loan foreclosure are held for sale and are initially recorded at fair value less selling costs. Any write-down to fair value less cost to sell, at the time of transfer to other real estate owned is charged to the allowance for loan losses. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less costs to sell. Costs of improvements are capitalized, whereas costs relating to holding other real estate owned and subsequent write-downs to the value are expensed. The amount of residential real estate where physical possession had been obtained included with in other real estate owned assets at December 31, 2020 and 2019 was $26 thousand and $215 thousand, respectively. There were five residential real estate loans totaling $384 thousand in process of foreclosure at December 31, 2020 and none at December 31, 2019. ​ Premises and Equipment: Land is carried at cost. Premises and equipment are carried at cost less accumulated depreciation computed on the straight-line method over the estimated useful lives of the assets or the expected terms of the leases, if shorter. Expected terms include lease option periods to the extent that the exercise of such options is reasonably assured. Maintenance and repairs are expensed as incurred while major additions and improvements are capitalized. Gains and losses on dispositions are included in current operations. ​ Goodwill and Intangible Assets: Goodwill represents the cost in excess of the fair value of net assets acquired (including identifiable intangibles) in transactions accounted for as business combinations. Goodwill has an indefinite useful life and is evaluated for impairment annually, or more frequently if events and circumstances indicate that the asset might be impaired. Other acquired intangible assets with finite lives, such as core deposit intangibles, are initially recorded at fair value and amortized over their estimated useful lives. Intangible assets are evaluated for impairment when events or changes in circumstances indicate a potential impairment accelerated basis typically between five ​ Transfers of Financial Assets: Transfers of financial assets are accounted for as sales, when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company - put presumptively beyond the reach of the transferor and its creditors, even in bankruptcy or other receivership, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity or the ability to unilaterally cause the holder to return specific assets. ​ Derivative Instruments: The Company applies hedge accounting to certain interest rate derivatives entered into for risk management purposes. In accordance with ASC Topic 815, Derivatives and Hedging, all derivative instruments are recorded on the accompanying consolidated balance sheet at their respective fair values. The accounting for changes in fair value (i.e., gains or losses) of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship. If the derivative instrument is not designated as a hedge, changes in the fair value of the derivative instrument are recognized in earnings in the period of change. For derivative instruments that are designated and qualify as a fair value hedge, the gain or loss on the derivative instrument as well as the offsetting loss or gain 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. ​ Revenue Recognition Service charges on deposit accounts Investment services Insurance commissions Interchange and debit card transaction fees, net Other ​ Advertising Costs: The Company expenses all advertising and marketing costs as incurred. ​ Income Taxes: The income tax accounting guidance results in two components of income tax expense: current and deferred. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of the enacted tax law to the taxable income or excess of deductions over revenues. The Company determines deferred income taxes using the liability (or balance sheet) method. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax bases of assets and liabilities, and enacted changes in tax rates and laws are recognized in the period in which they occur. Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are recognized if it is more likely than not, based on the technical merits, that the tax position will be realized or sustained upon examination. Deferred tax assets may be reduced by deferred tax liabilities and a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized. ​ Stock-Based Compensation Plans: The Company has stock options, restricted stock awards and stock appreciation rights under stock-based compensation plans, which are described in more detail in Note 13-Employee Benefits. The plans have been accounted for under the accounting guidance (FASB ASC 718, Compensation Stock Compensation) The stock compensation accounting guidance requires that compensation cost for all stock awards be calculated and recognized over the employees’ service period, generally defined as the vesting period. For awards with graded-vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. A Black-Scholes model is used to estimate the fair value of stock options, while the market value of the Company’s common stock at the date of grant is used for restrictive stock awards and stock grants. Comprehensive Income: Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities, such as (1) unrealized gains and losses on available-for-sale securities and (2) unrealized gains and losses on effective portions of fair value security hedges, are reported as a separate component of the equity section of the balance sheet, such items, along with net income, are components of comprehensive income. ​ Business Combinations: Business combinations are accounted for using the acquisition method of accounting. Under the acquisition method of accounting, acquired assets and assumed liabilities are included with the acquirer’s accounts as of the date of acquisition at estimated fair value, with any excess of purchase price over the fair value of the net assets acquired (including identifiable intangible assets) capitalized as goodwill. In the event that the fair value of the net assets acquired exceeds the purchase price, an acquisition gain is recorded for the difference in consolidated statements of income for the period in which the acquisition occurred. An intangible asset is recognized as an asset apart from goodwill when it arises from contractual or other legal rights or if it is capable of being separated or divided from the acquired entity and sold, transferred, licensed, rented or exchanged. In addition, acquisition-related costs and restructuring costs are recognized as period expenses as incurred. Estimates of fair value are subject to refinement for a period not to exceed one year from acquisition date as information relative to acquisition date fair values becomes available. ​ Earnings Per Common Share: Basic earnings per common share is computed by dividing net income available to common stockholders 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. ​ Operating Segments: The Company’s chief operating decision maker primarily manages operations and assesses financial performance on a Company-wide basis. However, in addition to the discrete financial information that is provided for the Company as a whole, financial information is also provided for the wealth management services, insurance services and mortgage origination segments, respectively. While the chief operating decision maker uses the financial information related to these segments to analyze business performance and allocate resources, these segments do not meet the quantitative threshold under GAAP to be considered a reportable segment. As such, these operating segments, along with the banking operations segment, are aggregated into a single reportable operating segment in the Consolidated Financial Statements. No revenues are derived from foreign countries or from external customers that comprise more than 10% of the Company’s revenues. ​ Recently Issued Not Yet Effective Accounting Pronouncements: The following is a summary of recent authoritative pronouncements not yet in effect 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 In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740) In March 2020, the FASB issued ASU 2020-04 , Reference Rate Reform (Topic 848): ​ Recently Issued and Adopted Accounting Pronouncements: As of January 1, 2020, the Company adopted ASU 2019-01, Leases: Codification Improvements and liabilities on the balance sheet and disclosing essential information about leasing transactions. Specifically, ASU 2019-01 (i) allows the fair value of the underlying asset reported by lessors that are not manufacturers or dealers to continue to be its cost and not fair value as measured under the fair value definition, (ii) allows for the cash flows received for sales-type and direct financing leases to continue to be presented as results from investing, and (iii) clarifies that entities do not have to disclose the effect of the lease standard on adoption year interim amounts. The adoption of ASU 2019-01 did not have a material impact on the Company’s consolidated financial statements. As of January 1, 2020, the Company adopted ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment In August 2020, the SEC issued amendments to its disclosure rules to modernize the requirements in Regulation S-K, Item 101 on description of a business, Item 103 on legal proceedings, and Item 105 on risk factors. These amendments are intended to improve the readability of disclosures, reduce repetition, and eliminate immaterial information, thereby simplifying compliance for registrants and making disclosures more meaningful for investors. The amendments to the disclosure requirements related to a registrant’s description of its business and risk factors are intended to expand the use of a principles-based approach that gives registrants more flexibility to tailor disclosures. The amendments to the disclosure requirements related to legal proceedings continue to reflect the current, more prescriptive approach because those requirements depend less on a registrant’s specific characteristics. Further, additional human capital disclosures are required as part of the amendments to the description of the business. The final rule was effective on November 9, 2020, and the Company has incorporated the applicable changes as part of our annual filing on this Form 10-K. ​ 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 (“CARES”) Act was passed by Congress and signed into law on March 27, 2020. The CARES Act provides an estimated $2.2 trillion to stimulate the economy by supporting individuals and businesses through loans, grants, tax changes, and other types of relief through the COVID-19 pandemic. 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 Allowance for Loan 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. The Company is a participant in the PPP. See Note 5 Loans and Allowance for Loan Losses for more information. ● Mortgage Forbearance - Under the CARES Act, through the earlier of December 31, 2020, or the termination date of the COVID-19 national emergency, a borrower with a federally backed mortgage loan that is experiencing financial hardship due to COVID-19 may request a forbearance. A multifamily borrower with a federally backed multifamily mortgage loan that was current as of February 1, 2020, and is experiencing financial hardship due to COVID-19 may request forbearance on the loan for up to 30 days, with up to two additional 30-day periods at the borrower’s request. 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 Allowance for Loan Losses for more information. ● Past Due Reporting - With regard to 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 or as classified. The Company began offerin

Business Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2020
Business Combinations [Abstract]
Business Combinations	Note 2. Business Combinations Acquisition of Progressive Financial Group, 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 million of assets and assumed $272 million of liabilities. Pursuant to the Merger Agreement, each outstanding share of PFG common stock was converted into and cancelled in exchange to the right to receive $474.82 in cash, and 62.3808 shares of the Company’s common stock. The Company issued 1,292,578 shares of its 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 $8.5 million, representing the intangible value of PFG’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 straight-line over 60 months (5 years), 2.) Tradename of $63 thousand, amortizing straight-line over 120 months (10 years). The Company’s operating results for the year ended December 31, 2020, include the operating results of the acquired business for the period subsequent to the merger date of March 1, 2020. ​ 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 ​ ​ 78 ​ 891 Intangibles ​ — ​ 1,370 ​ ​ 1,127 ​ 2,497 Other real estate owned ​ 3,695 ​ (100) ​ ​ (1,424) ​ 2,171 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) ​ $ (219) ​ $ 298,645 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 assumed over liabilities assumed ​ $ 28,989 ​ ​ ​ ​ ​ Aggregate fair value adjustments ​ ​ $ (2,906) ​ $ (219) ​ Total identifiable net assets ​ ​ ​ ​ ​ ​ 25,864 Consideration transferred: ​ ​ ​ ​ ​ ​ Cash ​ ​ ​ ​ ​ ​ 9,838 Common stock issued ( ​ ​ ​ ​ ​ ​ 24,547 Total fair value of consideration transferred ​ ​ ​ ​ ​ ​ 34,385 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Goodwill ​ ​ ​ ​ ​ ​ $ 8,521 ​ 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 ​ The following table discloses the impact of the merger with PFG since the acquisition date through the year ended December 31, 2020. The table also presents certain pro-forma information (net interest income and noninterest income (“Revenue”) and net income) as if the PFG acquisition had occurred on January 1, 2019. 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 from the PFG acquisition for the year ended December 31, 2020, were $4.6 million and have been excluded from the pro-forma information presented below. The actual results and pro-forma information were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ ​ December 31, ​ ​ Revenue Net Income 2020: ​ ​ ​ ​ Actual PFG results included in statement of income since acquisition date ​ $ 10,227 ​ $ 3,581 ​ Supplemental consolidation pro-forma as if PFG had been acquired January 1, 2019 ​ 119,334 ​ 27,436 ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019: ​ ​ ​ Supplemental consolidation pro-forma as if PFG had been acquired January 1, 2019 ​ $ 115,479 ​ $ 27,952 ​ ​ Termination of Entegra Merger The Company elected to terminate, effective April 23, 2019, the Agreement and Plan of Merger dated January 15, 2019 (the “Merger Agreement”), among the Company, Entegra, and CT Merger Sub, Inc. Entegra elected to terminate the Merger Agreement in order to enter into a definitive merger agreement with a large North Carolina-based financial institution that made a competing offer to acquire Entegra, an offer that SmartFinancial chose not to match. Under the terms of the Merger Agreement, the Company received a termination fee of $6.4 million.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2020
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 stockholders 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 73 thousand antidilutive shares for the year ended December 31, 2020. There were no antidilutive shares for the year ended December 31, 2019. The following is a summary of the basic and diluted earnings per share computation (dollars in thousands, except per share data) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Basic earnings per share computation: ​ ​ ​ Net income available to common stockholders ​ $ 24,332 ​ $ 26,548 Average common shares outstanding – basic ​ 14,955,423 ​ 13,953,497 Basic earnings per share ​ $ 1.63 ​ $ 1.90 Diluted earnings per share computation: ​ ​ Net income available to common stockholders ​ $ 24,332 ​ $ 26,548 Average common shares outstanding – basic ​ 14,955,423 ​ 13,953,497 Incremental shares from assumed conversions: ​ ​ Stock options and restricted stock ​ 63,752 ​ 92,869 Average common shares outstanding - diluted ​ 15,019,175 ​ 14,046,366 Diluted earnings per common share ​ $ 1.62 ​ $ 1.89 ​

Securities

Securities	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Securities	Note 4. Securities The amortized cost and fair value of securities available-for-sale at December 31, 2020 and 2019 are summarized as follow (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ Gross Gross ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair ​ ​ Cost ​ Gains ​ Losses ​ Value U.S. Government-sponsored enterprises (GSEs) ​ $ 19,015 ​ $ 41 ​ $ (56) ​ $ 19,000 Municipal securities ​ 63,792 ​ 618 ​ (19) ​ 64,391 Other debt securities ​ 3,481 ​ 22 ​ (33) ​ 3,470 Mortgage-backed securities (GSEs) ​ 91,531 ​ 382 ​ (426) ​ 91,487 Total ​ $ 177,819 ​ $ 1,063 ​ $ (534) ​ $ 178,348 ​ At December 31, 2020 and 2019, securities with a carrying value totaling approximately $80.2 million and $92.3 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 18 - Derivatives ​ Proceeds from sale and maturities and calls of securities available for sale, gross gains and gross losses were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ ​ 2020 2019 Proceeds from sales ​ $ 11,759 ​ $ 16,515 Gross gains ​ $ 7 ​ $ 35 Gross losses ​ $ (1) ​ $ (1) ​ ​ ​ ​ ​ ​ ​ Proceeds from maturities and calls ​ $ 49,633 ​ $ 15,555 ​ ​ The amortized cost and estimated market value of securities by contractual maturity, are shown below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ Amortized Fair ​ ​ Cost ​ Value Due in one year or less ​ $ 4,907 ​ $ 4,949 Due from one year to five years ​ 4,159 ​ 4,174 Due from five years to ten years ​ 36,172 ​ 36,442 Due after ten years ​ 99,951 ​ 102,072 ​ ​ 145,189 ​ 147,637 Mortgage-backed securities ​ 66,425 ​ 67,997 Total ​ $ 211,614 ​ $ 215,634 ​ 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, as of December 31, 2020 and 2019 (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As of 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 Municipal securities ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ — 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As of December 31, 2019 ​ ​ 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) ​ $ 2,972 ​ $ (43) ​ 2 ​ $ 5,987 ​ $ (13) ​ 2 ​ $ 8,959 ​ $ (56) ​ 4 Municipal securities ​ 3,656 ​ (16) ​ 4 ​ 527 ​ (3) ​ 1 ​ 4,183 ​ (19) ​ 5 Other debt securities ​ — ​ — ​ — ​ 947 ​ (33) ​ 1 ​ 947 ​ (33) ​ 1 Mortgage-backed securities (GSEs) ​ 13,208 ​ (194) ​ 10 ​ 19,988 ​ (232) ​ 31 ​ 33,196 ​ (426) ​ 41 Total ​ $ 19,836 ​ $ (253) ​ 16 ​ $ 27,449 ​ $ (281) ​ 35 ​ $ 47,285 ​ $ (534) ​ 51 ​ 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 December 31, 2020 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 December 31, 2020, the Company does not intend to sell any of the securities, does not expect to be required to sell any of the securities, and expects to recover the entire amortized cost of all of the securities. Other Investments: Our other investments consist of restricted 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 December 31, 2020, the Company determined that there was no impairment on its other investment securities. The following is the amortized cost and carrying value of other investments (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2020 2019 Federal Reserve Bank stock ​ $ 8,606 $ 7,917 Federal Home Loan Bank stock ​ 5,838 ​ 4,646 First National Bankers Bank stock ​ 350 ​ 350 Total ​ $ 14,794 ​ $ 12,913 ​

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2020
Receivables [Abstract]
Loans and Allowance for Loan Losses	Note 5. Loans and Allowance for Loan Losses Portfolio Segmentation: Major categories of loans are summarized as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ ​ PCI ​ All Other ​ ​ ​ ​ PCI ​ All Other ​ ​ ​ ​ Loans Loans Total Loans Loans Total Commercial real estate ​ $ 16,123 ​ $ 996,853 ​ $ 1,012,976 ​ $ 15,255 ​ $ 890,051 ​ $ 905,306 Consumer real estate ​ 10,258 ​ 433,672 ​ 443,930 ​ 6,541 ​ 410,941 ​ 417,482 Construction and land development ​ 5,348 ​ 272,727 ​ 278,075 ​ 4,458 ​ 223,168 ​ 227,626 Commercial and industrial ​ 308 ​ 634,138 ​ 634,446 ​ 407 ​ 336,668 ​ 337,075 Consumer and other ​ 27 ​ 12,789 ​ 12,816 ​ 326 ​ 9,577 ​ 9,903 Total loans ​ 32,064 ​ 2,350,179 ​ 2,382,243 ​ 26,987 ​ 1,870,405 ​ 1,897,392 Less: Allowance for loan losses ​ (309) ​ (18,037) ​ (18,346) ​ (156) ​ (10,087) ​ (10,243) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans, net ​ $ 31,755 ​ $ 2,332,142 ​ $ 2,363,897 ​ $ 26,831 ​ $ 1,860,318 ​ $ 1,887,149 ​ For purposes of the disclosures required pursuant to the adoption of ASC 310, the loan 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 five loan portfolio segments that include commercial real estate, consumer real estate, construction and land development, commercial and industrial, and consumer and other. The following describe risk characteristics relevant to each of the portfolio segments: Commercial Real Estate: estate loans for income-producing properties such as apartment buildings, office and industrial buildings, and retail shopping centers are repaid from rent income derived from the properties. Loans within this portfolio segment are particularly sensitive to the valuation of real estate. Consumer Real Estate: Construction and Land Development: Commercial and Industrial: Consumer and Other: Credit Risk Management: The Company employs a credit risk management process with defined policies, accountability and routine reporting to manage credit risk in the loan portfolio segments. Credit risk management is guided by credit policies that provide for a consistent and prudent approach to underwriting and approvals of credits. Within the Credit Policy, procedures exist that elevate the approval requirements as credits become larger and more complex. All loans are individually underwritten, risk-rated, approved, and monitored. Responsibility and accountability for adherence to underwriting policies and accurate risk ratings lies in each portfolio segment. For the consumer real estate and consumer and other portfolio segments, the risk management process focuses on managing customers who become delinquent in their payments. For the other portfolio segments, the risk management process focuses on underwriting new business and, on an ongoing basis, monitoring the credit of the portfolios, including a third party review of the largest credits on an annual basis or more frequently, as needed. To ensure problem credits are identified on a timely basis, several specific portfolio reviews occur periodically to assess the larger adversely rated credits for proper risk rating and accrual status. Credit quality and trends in the loan portfolio segments are measured and monitored regularly. Detailed reports, by product, collateral, accrual status, etc., are reviewed by Director and Loan Committees. The allowance for loan losses is a valuation reserve established through provisions for loan losses charged against income. The allowance for loan losses, which is evaluated quarterly, is maintained at a level that management deems sufficient to absorb probable losses inherent in the loan portfolio. Loans deemed to be uncollectible are charged against the allowance for loan losses, while recoveries of previously charged-off amounts are credited to the allowance for loan losses. The allowance for loan losses is comprised of specific valuation allowances for loans evaluated individually for impairment and general allocations for pools of homogeneous loans with similar risk characteristics and trends. The allowance for loan losses related to specific loans is based on management’s estimate of potential losses on impaired loans as determined by (1) the present value of expected future cash flows; (2) the fair value of collateral if the loan is determined to be collateral dependent or (3) the loan’s observable market price. The Company’s homogeneous loan pools include commercial real estate loans, consumer real estate loans, construction and land development loans, commercial and industrial loans, and consumer and other loans. The general allocations to these loan pools are based on the historical loss rates for specific loan types and the internal risk grade, if applicable, adjusted for both internal and external qualitative risk factors. The qualitative factors considered by management include, among other factors, (1) changes in local and national economic conditions; (2) changes in asset quality; (3) changes in loan portfolio volume; (4) the composition and concentrations of credit; (5) the impact of competition on loan structuring and pricing; (6) the impact of interest rate changes on portfolio risk; (7) effectiveness of the Company’s loan policies, procedures and internal controls; (8) COVID-19 loan modification factor and (9) COVID-19 Q factor, which is based upon active COVID cases within the Company’s footprint. The total allowance established for each homogeneous loan pool represents the product of the historical loss ratio adjusted for qualitative factors and the total dollar amount of the loans in the pool. The determination of the adequacy of the allowance for loan losses is based on estimates that are particularly susceptible to significant changes in the economic environment and market conditions. In connection with the determination of the estimated losses on loans, management obtains independent appraisals for significant collateral. The Company’s loans are generally secured by specific items of collateral including real property, consumer assets, and business assets. Although the Company has a diversified loan portfolio, a substantial portion of its debtors’ ability to honor their contracts is dependent on local economic conditions. While management uses available information to recognize losses on loans, further reductions in the carrying amounts of loans may be necessary based on changes in local economic conditions. In addition, regulatory agencies, as an integral part of their examination process, periodically review the estimated losses on loans. Such agencies may require the Company to recognize additional losses based on their judgments about information available to them at the time of their examination. Because of these factors, it is reasonably possible that the estimated losses on loans may change materially in the near term. As previously mentioned in Note 1 – Presentation of Financial Information ​ The composition of loans by loan classification for impaired and performing loan status is summarized in the tables below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Real Estate ​ Development ​ Industrial ​ and Other ​ Total December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans $ 992,982 ​ $ 432,356 ​ $ 272,727 ​ $ 633,992 ​ $ 12,789 ​ $ 2,344,846 Impaired loans ​ 3,871 ​ 1,316 ​ — ​ 146 ​ — ​ 5,333 ​ ​ 996,853 ​ 433,672 ​ 272,727 ​ 634,138 ​ 12,789 ​ 2,350,179 PCI loans ​ 16,123 ​ 10,258 ​ 5,348 ​ 308 ​ 27 ​ 32,064 Total loans ​ $ 1,012,976 ​ $ 443,930 ​ $ 278,075 ​ $ 634,446 ​ $ 12,816 ​ $ 2,382,243 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans $ 889,795 ​ $ 409,394 ​ $ 222,621 ​ $ 336,508 ​ $ 9,577 ​ $ 1,867,895 Impaired loans ​ 256 ​ 1,547 ​ 547 ​ 160 ​ — ​ 2,510 ​ ​ 890,051 ​ 410,941 ​ 223,168 ​ 336,668 ​ 9,577 ​ 1,870,405 PCI loans ​ 15,255 ​ 6,541 ​ 4,458 ​ 407 ​ 326 ​ 26,987 Total loans ​ $ 905,306 ​ $ 417,482 ​ $ 227,626 ​ $ 337,075 ​ $ 9,903 ​ $ 1,897,392 ​ ​ The following tables show the allowance for loan losses allocation by loan classification for impaired, PCI, and performing loans (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ Consumer ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ and ​ ​ ​ ​ ​ Real Estate ​ Real Estate ​ Development ​ Industrial ​ Other ​ Total December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans $ 7,579 $ 3,267 $ 2,076 $ 4,768 $ 110 $ 17,800 Impaired loans ​ — ​ 116 ​ — ​ 121 ​ — ​ 237 ​ ​ 7,579 ​ 3,383 ​ 2,076 ​ 4,889 ​ 110 ​ 18,037 PCI loans ​ — ​ 88 ​ — ​ 218 ​ 3 ​ 309 Total loans ​ $ 7,579 ​ $ 3,471 ​ $ 2,076 ​ $ 5,107 ​ $ 113 ​ $ 18,346 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans $ 4,491 $ 2,159 $ 1,127 $ 1,766 $ 69 $ 9,612 Impaired loans ​ — ​ 343 ​ — ​ 132 ​ — ​ 475 ​ ​ 4,491 ​ 2,502 ​ 1,127 ​ 1,898 ​ 69 ​ 10,087 PCI loans ​ 17 ​ 74 ​ — ​ 59 ​ 6 ​ 156 Total loans ​ $ 4,508 ​ $ 2,576 ​ $ 1,127 ​ $ 1,957 ​ $ 75 ​ $ 10,243 ​ The following tables detail the changes in the allowance for loan losses by loan classification (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2020 ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ and Other ​ Total Beginning balance $ 4,508 $ 2,576 $ 1,127 $ 1,957 $ 75 $ 10,243 Loans charged-off ​ — ​ (23) ​ — ​ (420) ​ (398) ​ (841) Recoveries of loans charged-off ​ 19 ​ 39 ​ 2 ​ 114 ​ 87 ​ 261 Provision charged to expense ​ 3,052 ​ 879 ​ 947 ​ 3,456 ​ 349 ​ 8,683 Ending balance ​ $ 7,579 ​ $ 3,471 ​ $ 2,076 ​ $ 5,107 ​ $ 113 ​ $ 18,346 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2019 ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ and Other ​ Total Beginning balance $ 3,639 $ 1,789 $ 795 $ 1,746 $ 306 $ 8,275 Loans charged-off ​ (36) ​ (4) ​ — ​ (659) ​ (344) ​ (1,043) Recoveries of loans charged-off ​ 65 ​ 164 ​ 8 ​ 77 ​ 98 ​ 412 Provision charged to expense ​ 840 ​ 627 ​ 324 ​ 793 ​ 15 ​ 2,599 Ending balance ​ $ 4,508 ​ $ 2,576 ​ $ 1,127 ​ $ 1,957 ​ $ 75 ​ $ 10,243 ​ We maintain the allowance at a level that we deem appropriate to adequately cover the probable losses inherent in the loan portfolio. Our provision for loan losses for the year ended December 31, 2020, is $8.7 million compared to $2.6 million in the same period of 2019, an increase of $6.1 million. As of December 31, 2020, and 2019, our allowance for loan losses was $18.3 million and $10.2 million, respectively, which we deemed to be adequate at each of the respective dates. The increase in the allowance for loan losses at December 31, 2020, as compared to December 31, 2019, is primarily attributable to the ongoing economic uncertainties related to the COVID-19 pandemic. Also, during 2020, the Company updated the Allowance for Loan Loss policy to increase the additional basis points allowed for the unallocated risk portion from 100 basis points to 125 basis points. In addition, the Company added two new qualitative factors; 1.) based on the percentage of COVID modified loans to total loans and 2.) the average number of COVID cases within our footprint. The qualitative factors were also expanded to provide additional granularity related to the hospitality and restaurant industries which are most impacted by the pandemic within our footprint. The changes in our economic factors and the addition of the COVID modified factors equated to an additional $8.3 million in reserve. Our allowance for loan loss as a percentage of total loans was 0.77% at December 31, 2020 and 0.54% at December 31, 2019. ​ A description of the general characteristics of the risk grades used by the Company is as follows: Pass: Watch: Special Mention: Substandard: Doubtful: Uncollectible: The following tables outline the amount of each loan classification and the amount categorized into each risk rating (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ Consumer ​ ​ ​ Non PCI Loans: ​ Real Estate ​ Real Estate Development ​ Industrial ​ 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: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 ​ $ 1,012,976 ​ $ 443,930 ​ $ 278,075 ​ $ 634,446 ​ $ 12,816 ​ $ 2,382,243 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ Consumer ​ ​ ​ Non PCI Loans: ​ Real Estate ​ Real Estate Development ​ Industrial ​ and Other ​ Total Pass $ 860,447 $ 407,336 $ 216,459 $ 328,564 $ 9,462 $ 1,822,268 Watch ​ 25,180 ​ 989 ​ 6,089 ​ 6,786 ​ 40 ​ 39,084 Special mention ​ 4,057 ​ 738 ​ — ​ 1,033 ​ — ​ 5,828 Substandard ​ 367 ​ 1,713 ​ 620 ​ 228 ​ 51 ​ 2,979 Doubtful ​ — ​ 165 ​ — ​ 57 ​ 24 ​ 246 Total ​ ​ 890,051 ​ ​ 410,941 ​ ​ 223,168 ​ ​ 336,668 ​ ​ 9,577 ​ ​ 1,870,405 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ PCI Loans: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 12,473 ​ 5,258 ​ 902 ​ 41 ​ 300 ​ 18,974 Watch ​ 2,234 ​ 38 ​ 3,556 ​ — ​ 13 ​ 5,841 Special mention ​ 139 ​ 60 ​ — ​ — ​ — ​ 199 Substandard ​ 409 ​ 1,185 ​ — ​ 366 ​ 13 ​ 1,973 Doubtful ​ — ​ — ​ — ​ — ​ — ​ — Total ​ ​ 15,255 ​ ​ 6,541 ​ ​ 4,458 ​ ​ 407 ​ ​ 326 ​ ​ 26,987 Total loans ​ $ 905,306 ​ $ 417,482 ​ $ 227,626 ​ $ 337,075 ​ $ 9,903 ​ $ 1,897,392 ​ Past Due Loans: A loan 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 agreement. Generally, management places a loan on nonaccrual when there is a clear indication that the borrower’s cash flow may not be sufficient to meet payments as they become due, which is generally when a loan is 90 days past due. The following tables present an aging analysis of our loan portfolio (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 PCI Current Total ​ Accruing Accruing and Accruing ​ Nonaccrual ​ Nonaccrual ​ Loans ​ Loans ​ Loans 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 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ 30-60 Days 61-89 Days Past Due 90 ​ ​ Total ​ ​ ​ ​ ​ ​ ​ Past Due and Past Due and Days or More ​ ​ ​ Past Due and PCI Current Total ​ Accruing Accruing and Accruing ​ Nonaccrual ​ Nonaccrual ​ Loans ​ Loans ​ Loans Commercial real estate ​ $ 466 ​ $ 22 ​ $ — ​ $ 124 ​ $ 612 ​ $ 15,255 ​ $ 889,439 ​ $ 905,306 Consumer real estate ​ 1,564 ​ 30 ​ — ​ 1,872 ​ 3,466 ​ 6,541 ​ 407,475 ​ 417,482 Construction and land development ​ 507 ​ — ​ 607 ​ 620 ​ 1,734 ​ 4,458 ​ 221,434 ​ 227,626 Commercial and industrial ​ 559 ​ 53 ​ — ​ 57 ​ 669 ​ 407 ​ 335,999 ​ 337,075 Consumer and other ​ 86 ​ 14 ​ — ​ 70 ​ 170 ​ 326 ​ 9,407 ​ 9,903 Total ​ $ 3,182 ​ $ 119 ​ $ 607 ​ $ 2,743 ​ $ 6,651 ​ $ 26,987 ​ $ 1,863,754 ​ $ 1,897,392 ​ Impaired Loans: ​ A loan held for investment is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due (both principal and interest) according to the terms of the loan agreement. ​ The following is an analysis of the impaired loan portfolio, including PCI loans, detailing the related allowance recorded (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 December 31, 2019 ​ ​ ​ Unpaid ​ ​ ​ ​ Unpaid ​ ​ ​ Recorded Principal Related Recorded Principal Related ​ ​ Investment Balance ​ Allowance ​ Investment Balance ​ Allowance Impaired loans without a valuation allowance: ​ ​ ​ ​ ​ ​ Commercial real estate ​ $ 3,871 ​ $ 3,872 ​ $ — ​ $ 256 ​ $ 261 ​ $ — Consumer real estate ​ 888 ​ 888 ​ — ​ 553 ​ 553 ​ — Construction and land development ​ — ​ — ​ — ​ 547 ​ 547 ​ — Commercial and industrial ​ — ​ — ​ — ​ — ​ — ​ — Consumer and other ​ — ​ — ​ — ​ — ​ — ​ — ​ ​ 4,759 ​ 4,760 ​ — ​ 1,356 ​ 1,361 ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans with a valuation allowance: ​ ​ ​ ​ ​ ​ Commercial real estate ​ — ​ — ​ — ​ — ​ — ​ — Consumer real estate ​ 428 ​ 428 ​ 116 ​ 994 ​ 994 ​ 343 Construction and land development ​ — ​ — ​ — ​ — ​ — ​ — Commercial and industrial ​ 146 ​ 146 ​ 121 ​ 160 ​ 160 ​ 132 Consumer and other ​ — ​ — ​ — ​ — ​ — ​ — ​ ​ 574 ​ 574 ​ 237 ​ 1,154 ​ 1,154 ​ 475 PCI loans: ​ ​ ​ ​ ​ ​ Commercial real estate ​ — ​ — ​ — ​ 17 ​ 99 ​ 17 Consumer real estate ​ 1,827 ​ 2,086 ​ 88 ​ 1,205 ​ 1,371 ​ 74 Construction and land development ​ — ​ — ​ — ​ — ​ — ​ — Commercial and industrial ​ 270 ​ 234 ​ 218 ​ 396 ​ 534 ​ 59 Consumer and other ​ 21 ​ 20 ​ 3 ​ 45 ​ 51 ​ 6 ​ ​ 2,118 ​ 2,340 ​ 309 ​ 1,663 ​ 2,055 ​ 156 Total impaired loans ​ $ 7,451 ​ $ 7,674 ​ $ 546 ​ $ 4,173 ​ $ 4,570 ​ $ 631 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ Average Interest Average Interest ​ Recorded Income Recorded Income ​ ​ Investment ​ Recognized Investment Recognized Impaired loans without a valuation allowance: ​ ​ ​ ​ Commercial real estate ​ $ 1,073 ​ $ 12 ​ $ 399 ​ $ 30 Consumer real estate ​ 701 ​ 33 ​ 725 ​ 15 Construction and land development ​ 231 ​ — ​ 619 ​ 5 Commercial and industrial ​ — ​ — ​ 20 ​ 1 Consumer and other ​ — ​ — ​ 11 ​ 1 ​ ​ 2,005 ​ 45 ​ 1,774 ​ 52 Impaired loans with a valuation allowance: ​ ​ ​ ​ ​ Commercial real estate ​ 158 ​ 2 ​ 9 ​ 1 Consumer real estate ​ 656 ​ 24 ​ 397 ​ 17 Construction and land development ​ — ​ — ​ 11 ​ — Commercial and industrial ​ 244 ​ 8 ​ 430 ​ 16 Consumer and other ​ — ​ — ​ 23 ​ — ​ ​ 1,058 ​ 34 ​ 870 ​ 34 PCI loans: ​ ​ ​ ​ Commercial real estate ​ 200 ​ 1 ​ 1,518 ​ (25) Consumer real estate ​ 1,461 ​ 117 ​ 922 ​ 42 Construction and land development ​ 46 ​ — ​ — ​ — Commercial and industrial ​ 321 ​ 7 ​ 79 ​ 9 Consumer and other ​ 27 ​ — ​ 9 ​ 1 ​ ​ 2,055 ​ 125 ​ 2,528 ​ 27 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total impaired loans ​ $ 5,118 ​ $ 204 ​ $ 5,172 ​ $ 113 ​ Troubled Debt Restructurings: At December 31, 2020 and 2019, 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 December 31, 2020, and 2019, management had approximately $257 thousand and $61 thousand, respectively, in loans that met the criteria for TDR restructured loans, 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 management will be able to collect all amounts due (both principal and interest) according to the terms of the loan agreement. The following table presents a summary of loans that were modified as troubled debt restructurings during the year ended December 31, 2020 (dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pre-Modification Post-Modification ​ ​ ​ Outstanding Outstanding ​ ​ ​ Recorded Recorded December 31, 2020 ​ Number of Contracts Investment Investment Consumer real estate ​ 1 ​ $ 108 ​ $ 108 Commercial and industrial ​ 3 ​ ​ 141 ​ ​ 141 Consumer other ​ 1 ​ ​ 8 ​ ​ 8 ​ ​ ​ ​ ​ ​ ​ ​ ​ There were no loans that were modified as troubled debt restructurings during the past twelve 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. The Coronavirus Aid Relief and Economic Security (“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 December 31, 2020, the amount of residential real estate where physical possession had been obtained and included with in other real estate owned assets was one property for $26 thousand and one property for $215 thousand at December 31, 2019. There were five residential real estate loans totaling $384 thousand in process of foreclosure at December 31, 2020 and none at December 31, 2019. Purchased Credit Impaired Loans: The Company has acquired loans which 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 for the years ended December 31, are as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Commercial real estate ​ $ 23,787 ​ $ 21,570 Consumer real estate ​ 12,692 ​ 8,411 Construction and land development ​ 1,812 ​ 5,394 Commercial and industrial ​ 6,521 ​ 2,540 Consumer and other ​ 161 ​ 504 Total loans ​ 44,973 ​ 38,419 Less: Remaining purchase discount ​ (12,909) ​ (11,432) Total loans, net of purchase discount ​ 32,064 ​ 26,987 Less: Allowance for loan losses ​ (309) ​ (156) Carrying amount, net of allowance ​ $ 31,755 ​ $ 26,831 ​ The following is a summary of the accretable yield on acquired loans for the years ended December 31, (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Accretable yield, beginning of period ​ $ 8,454 ​ $ 7,052 Additions ​ 2,515 ​ — Accretion income ​ (5,347) ​ (4,627) Reclassification ​ 2,792 ​ 3,555 Other changes, net ​ 8,475 ​ 2,474 Accretable yield, end of period ​ $ 16,889 ​ $ 8,454 ​ There was an allowance for loan losses on purchase credit impaired loans at the years ended December 31, 2020 and 2019 of $309 thousand and $156 thousand, respectively. Related Party Loans: In the ordinary course of business, the Company has granted loans to certain related interests, including directors, executive officers, and their affiliates (collectively referred to as "related parties"). Such loans are made in the ordinary course of business and on substantially the same terms as those for comparable transactions prevailing at the time and do not present other unfavorable features. A summary of activity in loans to related parties is as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Balance, beginning of year ​ $ 24,091 ​ $ 31,246 Disbursements ​ 7,108 ​ 16,297 Repayments ​ (16,740) ​ (23,452) Balance, end of year ​ $ 14,459 ​ $ 24,091 ​ At December 31, 2020, the Company had pre-approved but unused lines of credit totaling approximately $6.2 million to related parties.

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Premises and Equipment	Note 6. Premises and Equipment A summary of premises and equipment at December 31, is as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Useful Life 2020 2019 Land and land improvements Indefinite ​ $ 16,724 ​ $ 14,712 Building and leasehold improvements 15-40 years ​ 53,701 ​ 38,640 Furniture, fixtures and equipment 3-7 years ​ 18,095 ​ 13,744 Construction in progress ​ 964 ​ 5,523 Total, gross ​ 89,484 ​ 72,619 Accumulated depreciation ​ (16,802) ​ (13,186) Total, net ​ $ 72,682 ​ $ 59,433 ​ At December 31, 2020 management estimates the cost necessary to complete the construction in progress will be approximately $150 thousand. Depreciation and amortization expense relating to premises and equipment was $3.7 million and $2.8 million for the years ended December 31, 2020 and 2019, respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Note 7. Goodwill and Intangible Assets Goodwill and Intangible Assets: In accordance with FASB ASC 350, Goodwill and Other The Company’s other intangible assets consist of core deposit intangibles, insurance agency customer relationships and insurance agency 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 insurance agency customer relationships are amortized over ten years and the insurance agency tradename is amortized over five years. The carrying amount of goodwill and other intangible assets as of the dates indicated is summarized below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, December 31, ​ ​ 2020 ​ 2019 Goodwill: ​ ​ Balance, beginning of period ​ $ 65,614 ​ $ 66,087 Adjustment to values initially recorded for Acquisition of Foothills Bancorp, Inc. ​ — ​ (473) Acquisition of PFG ​ 8,521 ​ — Balance, end of the period ​ $ 74,135 ​ $ 65,614 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Core Deposit Insurance Agency Insurance Agency ​ ​ Amortized other intangible assets: ​ Intangibles ​ Customer Relationships ​ Tradename ​ Total ​ Beginning balance January 1, 2020 ​ $ 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance January 1, 2019 ​ $ 14,550 ​ $ - ​ $ - ​ $ 14,550 ​ Less: accumulated amortization ​ ​ (2,971) ​ ​ - ​ ​ - ​ ​ (2,971) ​ Balance, December 31, 2019, other intangible assets, net ​ ​ 11,579 ​ ​ - ​ ​ - ​ ​ 11,579 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The aggregate amortization expense for other intangibles assets for the years ended December 31, 2020 and 2019, was $1.7 million and $1.4 million, respectively. The estimated aggregate amortization expense for future periods for other intangible assets is as follows (in thousands) ​ ​ ​ ​ ​ 2021 ​ $ 1,760 2022 ​ 1,697 2023 ​ 1,636 2024 ​ 1,588 2025 ​ ​ 1,531 Thereafter ​ 4,124 Total ​ $ 12,336 ​

Deposits

Deposits	12 Months Ended
	Dec. 31, 2020
Deposits [Abstract]
Deposits	Note 8. Deposits The aggregate amount of time deposits in denominations of $250,000 or more was $138.1 million and $136.5 million at December 31, 2020 and 2019, respectively. At December 31, 2020, the scheduled maturities of time deposits are as follows (in thousands) ​ ​ ​ ​ ​ 2021 $ 389,097 2022 ​ 82,271 2023 ​ 44,957 2024 ​ 22,444 2025 ​ 10,906 Thereafter ​ 487 Total ​ $ 550,162 ​ As of December 31, 2020, and 2019, there was a fair value adjustment of $336 thousand and $206 thousand, respectively, to time deposits as a result of business combinations. At December 31, 2020 and 2019, the Company had $285 thousand and $254 thousand, respectively, of deposit accounts in overdraft status that have been reclassified to loans on the accompanying consolidated balance sheets. From time to time, the Company engages in deposit transactions with its directors, executive officers and their related interests (collectively referred to as "related parties"). Such deposits are made in the ordinary course of business and on substantially the same terms as those for comparable transactions prevailing at the time and do not present other unfavorable features. The total amount of related party deposits was $21.6 million and $16.8 million at December 31, 2020 and 2019, respectively.

Borrowings and Line of Credit

Borrowings and Line of Credit	12 Months Ended
	Dec. 31, 2020
Borrowings and Line of Credit [Abstract]
Borrowings and Line of Credit	Note 9. Borrowings and Line of Credit Securities Sold Under Agreements to Repurchase: Securities sold under repurchase agreements, which are secured borrowings, generally mature within one At December 31, 2020 and 2019, the Company had securities sold under agreements to repurchase of $5.8 million and $6.2 million, respectively, with commercial checking customers which were secured by government agency securities. The carrying value of investment securities pledged as collateral under repurchase agreements was $7.6 million and $12.9 million at December 31, 2020 and December 31, 2019, respectively. Federal Reserve Bank: The bank has agreements with the Federal Reserve Bank’s discount window to provide additional funding to the Bank. The Federal Reserve discount window line is collateralized by a pool of commercial real estate loans and commercial and industrial loans. At December 31, 2020 and 2019, the funding capacity and loans secured for borrowings was as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Maximum funding capacity $ 149,219 ​ $ 6,994 Borrowings ​ — ​ ​ — Additional funding capacity ​ $ 149,219 ​ $ 6,994 Loans secured for borrowings $ 258,774 ​ $ 9,562 ​ Federal Home Loan Bank Advances: The Bank has agreements with the Federal Home Loan Bank of Cincinnati ("FHLB") that can provide advances to the Bank. All of the advances are secured by first mortgages on 1-4 family residential, multi-family properties and commercial properties and are pledged as collateral for these advances. There were no securities pledged to FHLB at December 31, 2020 and 2019. ​ ​ At December 31, 2020 and 2019, the borrowing capacity and loans secured for advances was as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Maximum borrowing capacity $ 194,445 ​ $ 156,059 FHLB advances ​ (75,000) ​ ​ (25,000) Secured lines of credit ​ ​ (83,982) ​ ​ (83,982) Additional borrowing capacity ​ $ 35,463 ​ $ 47,077 Loans secured for advances $ 281,670 ​ $ 554,371 ​ At December 31, 2020 and 2019, FHLB advances consist of the following (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Long-term advance dated September 10, 2019, requiring monthly interest payments, fixed at 0.93%, with a put option exercisable on September 10, 2020 and then quarterly thereafter, principal due in September 2029. 1 $ 25,000 ​ $ 25,000 ​ ​ ​ ​ ​ ​ ​ Long-term advance dated February 28, 2020, requiring monthly interest payments, fixed at 0.46%, with a put option exercisable on February 26, 2021 and then quarterly thereafter, principal due in February 2030. 1 ​ 50,000 ​ ​ — Total $ 75,000 ​ $ 25,000 ​ 1 Other Borrowings: On May 1, 2018, the Company entered into a loan agreement in the amount of $500 thousand at a rate of 4.75% with semi-annual payments of principal plus accrued interest over an amortization period of ten years. The outstanding principal balance of the borrowing at December 31, 2020 and 2019 was $396 thousand and $439 thousand, respectively, with a maturity on April 30, 2028. Scheduled maturities : At December 31, 2020, scheduled maturities of the FHLB advances and other borrowings are as follows (in thousands) ​ ​ ​ ​ ​ 2021 $ 45 2022 ​ 47 2023 ​ 50 2024 ​ 52 2025 ​ 54 Thereafter ​ 75,148 Total ​ $ 75,396 ​ Federal Funds Purchased: There were no federal funds purchased as of December 31, 2020 and 2019, 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 September 24, 2021. At December 31, 2020, there was no outstanding balance under the line of credit, and the entire amount of the line of credit remained available to the Company.

Subordinated debt

Subordinated debt	12 Months Ended
	Dec. 31, 2020
Subordinated debt [Abstract]
Subordinated debt	Note 10. Subordinated Debt 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 December 31, 2020 and 2019. Unamortized debt issuance cost was $654 thousand and $739 thousand at December 31, 2020 and 2019, 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 $84 thousand and $84 thousand for the years ended December 31, 2020 and 2019, respectively.

Leases

Leases	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leases	Note 11. 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) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ ​ ​ Classification ​ 2020 ​ 2019 ​ Assets: ​ ​ ​ ​ Operating lease right-of-use assets Other assets ​ $ 4,797 ​ $ 5,470 ​ Liabilities: ​ ​ ​ ​ Operating lease liabilities Other liabilities ​ $ 4,827 ​ $ 5,479 ​ ​ 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 December 31, 2020, the weighted average remaining lease term was 11.28 years and the weighted average discount rate was 2.72%. 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. The following table represents lease costs and other lease information for the years ended December 31, (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Lease costs: ​ ​ ​ ​ Operating lease costs ​ $ 1,044 ​ $ 703 Short-term lease costs ​ — ​ 12 Variable lease costs ​ 111 ​ 95 Total ​ $ 1,155 ​ $ 810 Other information: ​ ​ Cash paid for amounts included in the measurement of lease liabilities: ​ ​ Operating cash flows from operating leases ​ $ 1,265 ​ $ 693 ​ Future minimum payments for operating leases with initial or remaining terms of one year or more as of December 31, 2020 were as follows (in thousands) ​ ​ ​ ​ ​ Amounts 2021 $ 804 2022 ​ 623 2023 ​ 485 2024 ​ 366 2025 ​ 348 Thereafter ​ 3,032 Total future minimum lease payments ​ 5,658 Amounts representing interest ​ (831) Present value of net future minimum lease payments ​ $ 4,827 ​ Lease expense for the years ended December 31, 2020 and 2019, was $1.2 million and $875 thousand, respectively. The Company entered into two leasing arrangements for branch offices with companies that are wholly owned by a board of director’s immediate family. The Company has determined that these leasing arrangements were considered economically fair and in the best interest of the Company. For the years ended December 31, 2020 and 2019, the Company paid $150 thousand and $89 thousand, respectively, for base rent payments.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Note 12. Income Taxes Income tax expense in the consolidated statements of income for the years ended December 31, 2020 and 2019, includes the following (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Current tax expense ​ ​ Federal ​ $ 6,330 ​ $ 5,143 State ​ 1,447 ​ 974 Deferred tax expense related to: ​ ​ Federal ​ (991) ​ 678 State ​ (228) ​ 102 Total income tax expense ​ $ 6,558 ​ $ 6,897 ​ ​ The income tax expense is different from the expected tax expense computed by multiplying income before income tax expense by the statutory income tax rate of 21%. The reasons for this difference are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Federal income tax expense computed at the statutory rate ​ $ 6,487 ​ $ 7,024 State income taxes, net of federal tax benefit ​ 923 ​ 872 Nondeductible acquisition expenses ​ 109 ​ — Tax-exempt interest ​ (555) ​ (469) Tax benefit from stock options ​ (14) ​ (24) Other ​ (392) ​ (506) Total income tax expense ​ $ 6,558 ​ $ 6,897 ​ The components of the net deferred tax asset as of December 31, 2020 and 2019, were as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Deferred tax assets: ​ ​ Allowance for loan losses $ 4,744 ​ $ 2,688 Fair value adjustments ​ 3,854 ​ 4,098 Unrealized losses on securities ​ — ​ — Unrealized losses on hedges or derivative securities ​ 278 ​ 79 Other real estate owned ​ 523 ​ 25 Deferred compensation ​ 1,103 ​ 976 Lease liability ​ 1,248 ​ 1,438 Federal net operating loss carryforward ​ — ​ 221 Other ​ 82 ​ 442 Total deferred tax assets ​ 11,832 ​ 9,967 Deferred tax liabilities: ​ ​ Accumulated depreciation ​ 1,374 ​ 1,610 Core deposit intangible ​ 3,112 ​ 2,971 Right of use asset ​ 1,240 ​ 1,435 Unrealized gains on available-for-sale securities ​ 1,051 ​ 139 Other ​ 663 ​ 332 Total deferred tax liabilities ​ 7,440 ​ 6,487 Net deferred tax asset ​ $ 4,392 ​ $ 3,480 ​ During 2020, the CARES Act was passed allowing the five year carryback of net operating losses (“NOLs”). The Federal NOLs acquired with Foothills Bancorp, Inc. and Tennessee Bancshares, Inc. were carried back for a refund in 2020. The income tax returns of the Company for 2019, 2018, and 2017 are subject to examination by the federal and state taxing authorities, generally for three years after they were filed.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2020
Defined Benefit Plan [Abstract]
Employee Benefit Plans	Note 13. 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 was $1.1 million in 2020 and $818 thousand in 2019. 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 December 31, 2020, the Company had one active equity incentive plan available for future grants, the 2015 Stock Incentive Plan, which had 26,601 rights issued and 1,876,894 Rights available for future grants or awards. In addition, the Company has 30,500 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 activity in these stock option plans is presented in the following table: ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ ​ Exercisable ​ ​ Number ​ Price Outstanding at December 31, 2018 ​ 170,625 ​ $ 10.61 Granted ​ — ​ ​ — Exercised ​ (31,931) ​ ​ 11.85 Forfeited ​ (2,036) ​ ​ 12.20 Outstanding at December 31, 2019 ​ 136,658 ​ ​ 10.29 Granted ​ — ​ ​ — Exercised ​ (33,556) ​ ​ 10.12 Forfeited ​ (3,485) ​ ​ 15.05 Outstanding at December 31, 2020 ​ 99,617 ​ ​ 10.19 ​ Information pertaining to options outstanding at December 31, 2020, 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 1.19 years ​ $ 6.60 19,250 ​ $ 6.60 ​ 6.80 11,250 0.16 years ​ 6.80 11,250 ​ 6.80 ​ 9.48 18,500 2.19 years ​ 9.48 18,500 ​ 9.48 ​ 9.60 21,750 2.99 years ​ 9.60 21,750 ​ 9.60 ​ 11.76 2,266 1.50 years ​ 11.76 2,266 ​ 11.76 ​ 15.05 26,601 4.57 years ​ 15.05 26,601 ​ 15.05 Outstanding, end of period 99,617 2.57 years ​ $ 10.19 ​ 99,617 ​ $ 10.19 ​ The Company did not recognize any stock option-based compensation expense for the period ended December 31, 2020, as all stock options are fully vested. During the period ended December 31, 2019, stock option-based compensation was $121 thousand. The intrinsic value of options exercised during the periods ended December 31, 2020 and 2019 was $190 thousand and $372 thousand, respectively. The aggregate intrinsic value of total options outstanding No options vested during the periods ended December 31, 2020, and 2019, respectively. The income tax benefit recognized for the exercise of options during the periods ended December 31, 2020 and 2019 was $18 thousand and $61 thousand, respectively. As of December 31, 2020, 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 year ended December 31, 2020 is presented below: ​ The following table summarizes activity relating to non-vested restricted stock awards: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ ​ Grant-Date ​ ​ Number ​ Fair Value Balance at December 31, 2019 65,400 ​ $ 21.04 Granted 43,613 ​ 15.95 Vested (7,295) ​ 18.32 Forfeited/expired (1,500) ​ 18.12 Balance at December 31, 2020 100,218 ​ $ 19.07 ​ 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 periods ended December 31, 2020 and 2019, was $482 thousand and $396 thousand, respectively. As of December 31, 2020, there was $1.0 million, respectively, 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 2.85 years. The grant-date fair value of restricted stock awards vested was $134 thousand for the period ended December 31, 2020. ​ Stock Appreciation Rights ("SARs"): ​ When SAR’s are issued, they are assigned an exercisable price based on the closing stock price on the date of grant. The SAR’s are recorded at fair market value and adjusted through salaries and employee benefits expense. The SAR’s will be settled through cash based on the difference of Company’s closing stock price on exercise date and original grant date stock price. SARs compensation expense of $51 thousand and $134 thousand was recognized for the years ended December 31, 2020 and 2019, respectively. ​ ​ A summary of the status of SARs plans is presented in the following table: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ Number Exercisable Price Outstanding at December 31, 2018 ​ 50,000 ​ $ 21.64 Granted ​ 21,000 ​ ​ 18.12 Exercised ​ — ​ ​ — Forfeited/Expired ​ (4,000) ​ ​ 21.67 Outstanding at December 31, 2019 ​ 67,000 ​ ​ 20.54 Granted ​ 18,000 ​ ​ 15.19 Exercised ​ — ​ ​ — Forfeited/Expired ​ (12,000) ​ ​ 21.72 Outstanding at December 31, 2020 ​ 73,000 ​ $ 19.02 ​ Information pertaining to SARs outstanding at December 31, 2020, 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 18,000 3.00 years $ 15.19 — $ — ​ 18.12 21,000 2.00 years ​ 18.12 — ​ — ​ 21.61 34,000 1.00 years ​ 21.61 — ​ — ​ Outstanding, end of period 73,000 1.78 years ​ $ 19.02 — ​ $ — ​

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 14. Commitments and Contingent Liabilities Commitments: 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 in the balance sheets. 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 for the years ended December 31, 2020 and 2019, are as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Commitments to extend credit $ 476,841 ​ $ 384,411 Standby letters of credit ​ 5,261 ​ 11,727 ​ 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 December 31, 2020 and 2019, the carrying amount of liabilities related to the Company’s obligation to perform under standby letters of credit was insignificant. The Company has not been required to perform on any standby letters of credit, and the Company has not incurred any losses on standby letters of credit for the years ended December 31, 2020 and 2019. Contingent Liabilities: 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.

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2020
Banking and Thrift [Abstract]
Regulatory Matters	Note 15. 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 December 31, 2020, 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 or not 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 year ended December 31, 2020, the Bank paid $13.9 million in dividends to the Company and no dividends were paid during the year ended December 31, 2019. Since the fourth quarter of 2019, the Company has paid a quarterly common stock dividend of $0.05 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 December 31, 2020 and 2019 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 ​ 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) 2 ​ 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) 2 ​ 299,314 9.58 % 124,969 4.00 % 156,212 5.00 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartFinancial: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 287,937 14.02 % $ 164,313 8.00 % N/A N/A ​ Tier 1 Capital (to Risk Weighted Assets) ​ 238,433 11.61 % 123,235 6.00 % N/A N/A ​ Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 238,433 11.61 % 92,426 4.50 % N/A N/A ​ Tier 1 Capital (to Average Assets) ​ 238,433 10.34 % 92,258 4.00 % N/A N/A ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartBank: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 273,432 13.31 % $ 164,305 8.00 % $ 205,382 10.00 % Tier 1 Capital (to Risk Weighted Assets) ​ 263,189 12.81 % 123,229 6.00 % 164,305 8.00 % Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 263,189 12.81 % 92,422 4.50 % 133,498 6.50 % Tier 1 Capital (to Average Assets) ​ 263,189 11.41 % 92,254 4.00 % 115,317 5.00 % 1 The prompt corrective action provisions are applicable at the Bank level only. 2 Average assets for the above calculations were based on the most recent quarter. ​

Concentrations of Credit Risk

Concentrations of Credit Risk	12 Months Ended
	Dec. 31, 2020
Risks and Uncertainties [Abstract]
Concentrations of Credit Risk	Note 16. Concentrations of Credit Risk The Company originates primarily commercial, residential, and consumer loans to customers in East and Middle Tennessee, Alabama, and the Florida panhandle. The ability of the majority of the Company’s customers to honor their contractual loan obligations is dependent on the economy in these areas. Seventy-two percent of the Company’s loan portfolio is concentrated in loans secured by real estate, of which a substantial portion is secured by real estate in the Company’s primary market areas. Commercial real estate, including commercial construction loans, represented 51% of the loan portfolio at December 31, 2020, and 56% of the loan portfolio at December 31, 2019. Accordingly, the ultimate collectability of the loan portfolio and recovery of the carrying amount of other real estate owned is susceptible to changes in real estate conditions in the Company’s primary market areas. The other concentrations of credit by type of loan are set forth in Note 5. The Bank, as a matter of policy, does not generally extend credit to any single borrower or group of related borrowers in excess of 25% of statutory capital, or approximately $95.6 million.

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities	Note 17. Fair Value of Assets and Liabilities 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 - prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the asset or liability. 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. The following methodologies were used by the Company in estimating fair value disclosures for financial instruments: Securities Available-for-Sale: Other Investments: Loans: Deposits: Securities Sold Under Agreement to Repurchase: Federal Home Loan Bank ("FHLB") Advances, Subordinated Debt and Other Borrowings: Derivative Financial Instruments Commitments to Extend Credit and Standby Letters of Credit: Measurements of Fair Value: The tables below present the recorded amount of assets and liabilities measured at fair value on a recurring basis are as follows (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) 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 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ Assets: ​ ​ ​ ​ Securities available-for-sale: ​ ​ ​ ​ U.S. Government-sponsored enterprises (GSEs) ​ $ 19,000 ​ $ — ​ $ 19,000 ​ $ — Municipal securities ​ 64,391 ​ — ​ 64,391 ​ — Other debt securities ​ 3,470 ​ — ​ 3,470 ​ — Mortgage-backed securities (GSEs) ​ 91,487 ​ — ​ 91,487 ​ — Total securities available-for-sale ​ $ 178,348 ​ $ — ​ $ 178,348 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ Derivative financial instruments ​ $ 3,446 ​ ​ — ​ $ 3,446 ​ ​ — ​ The Company has no assets or liabilities whose fair values are measured on a recurring basis using Level 3 inputs. Additionally, there were no transfers between Level 1 and Level 2 in the fair value hierarchy. Assets Measured at Fair Value on a Nonrecurring Basis: Under certain circumstances management makes adjustments to 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) December 31, 2020: ​ ​ ​ ​ Impaired loans ​ $ 2,455 ​ $ — ​ $ — ​ $ 2,455 Other real estate owned ​ 4,619 ​ — ​ — ​ 4,619 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ Impaired loans ​ $ 2,185 ​ $ — ​ $ — ​ $ 2,185 Other real estate owned ​ 1,757 ​ — ​ — ​ 1,757 ​ 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 ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans ​ $ 2,455 Appraisal Appraisal discounts 9 % Other real estate owned ​ 4,619 Appraisal Appraisal discounts 22 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans ​ $ 2,185 Appraisal Appraisal discounts 22 % Other real estate owned ​ 1,757 Appraisal Appraisal discounts 29 % ​ Impaired loans: Receivables Other real estate owned: the customer’s business. Such discounts are typically significant unobservable inputs for determining fair value. In cases where the carrying amount exceeds the fair value, less estimated costs to sell, a loss is recognized in noninterest expense. 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 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, 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 183,971 $ 183,971 $ — $ — ​ $ 183,971 Securities available-for-sale ​ 178,348 ​ — ​ 178,348 ​ — ​ 178,348 Other investments ​ 12,913 ​ N/A ​ N/A ​ N/A ​ N/A Loans, net and loans held for sale ​ 1,893,005 ​ — ​ — ​ 1,879,825 ​ 1,879,825 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Noninterest-bearing demand deposits ​ 364,155 ​ — ​ 364,155 ​ — ​ 364,155 Interest-bearing demand deposits ​ 380,234 ​ — ​ 380,234 ​ — ​ 380,234 Money market and savings deposits ​ 623,284 ​ — ​ 623,284 ​ — ​ 623,284 Time deposits ​ 679,541 ​ — ​ 681,902 ​ — ​ 681,902 Borrowings ​ ​ 31,623 ​ ​ — ​ ​ 31,029 ​ ​ — ​ ​ 31,029 Subordinated debt ​ 39,261 ​ — ​ — ​ 35,868 ​ 35,868 Derivative financial instruments ​ 3,446 ​ — ​ 3,446 ​ — ​ 3,446 ​ ​ ​ 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

Derivatives	12 Months Ended
	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Note 18. Derivatives 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 December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements - securities Other liabilities 7.13 3.08 % 3 month LIBOR ​ $ 36,000 $ (6,174) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements - securities Other liabilities 8.20 3.09 % 3 month LIBOR ​ $ 36,000 ​ $ (3,446) ​ 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) ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ ​ 2020 ​ 2019 Interest income on tax-exempt securities ​ $ 2,150 ​ $ 1,741 Effects of fair value hedge relationships ​ (781) ​ (223) Reported interest income on tax-exempt securities ​ $ 1,369 ​ $ 1,518 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, Gain (loss) on fair value hedging relationship ​ 2020 ​ 2019 Interest rate swap agreements - securities: ​ ​ ​ Hedged items ​ $ (6,174) ​ $ (3,446) Derivative designated as hedging instruments ​ $ 6,174 ​ $ 3,446 ​ The following amounts were recorded on the balance sheet related to cumulative basis adjustments for fair value hedges at December 31, 2020 and 2019 (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 December 31, 2020: ​ ​ Securities available-for-sale $ 44,017 ​ $ (1,063) December 31, 2019: ​ ​ Securities available-for-sale ​ $ 42,710 ​ $ (302) ​

Other comprehensive income (los

Other comprehensive income (loss)	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Other comprehensive income (loss)	Note 19. Other Comprehensive Income (Loss) The changes in each component of accumulated other comprehensive income (loss), net of tax, were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 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) ​ 2,581 ​ (562) ​ 2,019 Reclassification of amounts included in net income ​ (4) ​ — ​ (4) Net other comprehensive income (loss) during period ​ 2,577 ​ (562) ​ 2,015 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, December 31, 2020 ​ $ 2,968 ​ $ (785) ​ $ 2,183 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2019 ​ ​ ​ ​ ​ Accumulated ​ ​ Securities ​ Fair Value ​ Other ​ ​ Available-for- ​ Municipal ​ Comprehensive ​ Sale Security Hedges Income (Loss) Beginning balance, December 31, 2018 ​ $ (1,979) ​ $ (786) ​ $ (2,765) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) ​ 2,395 ​ 563 ​ 2,958 Reclassification of amounts included in net income ​ (25) ​ — ​ (25) Net other comprehensive income (loss) during period ​ 2,370 ​ 563 ​ 2,933 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, December 31, 2019 ​ $ 391 ​ $ (223) ​ $ 168 ​

Condensed Parent Information

Condensed Parent Information	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Condensed Parent Information	Note 20. Condensed Parent Information CONDENSED BALANCE SHEETS December 31, 2020 and 2019 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 ASSETS: ​ ​ Cash ​ $ 8,062 ​ $ 13,155 Investment in subsidiaries ​ 384,743 ​ 337,503 Other assets ​ 4,413 ​ 1,996 ​ ​ ​ ​ ​ ​ ​ Total assets ​ $ 397,218 ​ $ 352,654 ​ ​ ​ ​ ​ ​ ​ LIABILITIES AND SHAREHOLDERS’ EQUITY: ​ ​ Other liabilities ​ $ 704 ​ $ 646 Other borrowings ​ 39,346 ​ 39,261 ​ ​ ​ ​ ​ ​ ​ Total liabilities ​ 40,050 ​ 39,907 ​ ​ ​ ​ ​ ​ ​ Shareholders’ equity ​ 357,168 ​ 312,747 ​ ​ ​ ​ ​ ​ ​ Total liabilities and shareholders’ equity ​ $ 397,218 ​ $ 352,654 ​ CONDENSED STATEMENTS OF INCOME Years ended December 31, 2020 and 2019 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 INCOME: ​ ​ ​ ​ ​ ​ Interest income ​ $ — ​ $ — Merger termination fee ​ — ​ 6,400 Total income ​ — ​ 6,400 ​ ​ ​ ​ ​ ​ ​ EXPENSES: ​ ​ Interest expense ​ 2,334 ​ 2,341 Other operating expenses ​ 1,625 ​ 2,755 Total expense ​ 3,959 ​ 5,096 ​ ​ ​ ​ ​ ​ ​ Income (loss) before equity in undistributed earnings of subsidiaries and income tax benefit ​ (3,959) ​ 1,304 Income tax benefit (expense) ​ 908 ​ (389) Income before equity in undistributed net income of subsidiaries ​ (3,051) ​ 915 Equity in undistributed earnings of subsidiaries ​ 27,383 ​ 25,633 Net income ​ $ 24,332 ​ $ 26,548 ​ STATEMENTS OF CASH FLOWS For the years ended December 31, 2020 and 2019 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Cash flows from operating activities: ​ ​ Net income ​ $ 24,332 ​ $ 26,548 Adjustments to reconcile net income to net cash (used in) provided by operating activities: ​ ​ Equity in undistributed income of subsidiary ​ (27,383) ​ (25,633) Other assets ​ (2,417) ​ (1,894) Other liabilities ​ 143 ​ 712 Net cash used in operating activities ​ (5,325) ​ (267) ​ ​ ​ ​ ​ ​ ​ Cash flows from investing activities: ​ ​ Net cash paid for business combinations ​ (6,713) ​ — Equity contribution from subsidiary ​ 13,900 ​ — Net cash used in investing activities ​ 7,187 ​ — ​ ​ ​ ​ ​ ​ ​ Cash flows from financing activities: ​ ​ Issuance of common stock ​ 339 ​ 438 Cash dividends paid ​ (2,986) ​ (700) Repurchase of common stock ​ ​ (4,308) ​ ​ — Net cash (used) provided by financing activities ​ (6,955) ​ (262) ​ ​ ​ ​ ​ ​ ​ Net change in cash and cash equivalents ​ (5,093) ​ (529) ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents, beginning of year ​ 13,155 ​ 13,684 ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents, end of period ​ $ 8,062 ​ $ 13,155 ​

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Nature of Business	Nature of Business: SmartFinancial, Inc. (the "Company") 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 Florida panhandle. The Company’s primary deposit products are 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	Basis of Presentation: The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary. All significant intercompany accounts and transactions have been eliminated in consolidation.
Accounting Estimates	Accounting Estimates: In preparing the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet, and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, the valuation of other real estate owned and deferred taxes, other than temporary impairments of securities, the fair value of financial instruments, goodwill, and business combination elements (Day 1 and Day 2 Valuation). ​
Cash and Cash Equivalents	Cash and Cash Equivalents: For purposes of reporting consolidated cash flows, cash and due from banks includes cash on hand, cash items in process of collection and amounts due from banks. Cash and cash equivalents also includes interest-bearing deposits in banks and federal funds sold. Cash flows from loans, federal funds sold, securities sold under agreements to repurchase and deposits are reported net. The in cash or on deposit Bank is required to maintain average balances with the Federal Reserve Bank. During 2020 the Federal Reserve Bank suspended reserve requirements to provide relief related to the COVID-19 pandemic, thus the Bank did not have a reserve requirement at December 31, 2020. The reserve requirement was $49.2 million at December 31, 2019.
Securities	Securities: Management has classified all securities as available-for-sale. Securities available-for-sale are recorded at fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income. Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method. The Company evaluates securities quarterly for other than temporary impairment using relevant accounting guidance specifying that (a) if the Company does not have the intent to sell a debt security prior to recovery and (b) it is more likely than not that it will not have to sell the debt security prior to recovery, the security would not be considered other than temporarily impaired unless a credit loss has occurred in the security. If management does not intend to sell the security and it is more likely than not that they will not have to sell the security before recovery of the cost basis, management will recognize the credit component of an other-than- temporary impairment of a debt security in earnings and the remaining portion in other comprehensive income. Securities borrowed or purchased under agreements to resell and securities loaned or sold under agreements to repurchase are treated as collateralized financial transactions. These agreements are recorded at the amount at which the securities were acquired or sold plus accrued interest. It is the Company’s policy to take possession of securities purchased under resale agreements. The market value of these securities is monitored, and additional securities are obtained when deemed appropriate to ensure such transactions are adequately collateralized. The Company also monitors its exposure with respect to securities sold under repurchase agreements, and a request for the return of excess securities held by the counterparty is made when deemed appropriate.
Other Investments	Other Investments: The Company is required to maintain an investment in capital stock of various entities. Based on redemption provisions of these entities, the stock has no quoted market value and is carried at cost. At their discretion, these entities may declare dividends on the stock. Management reviews restricted investments for impairment based on the ultimate recoverability of the cost basis in these stocks.
Loans Held for Sale	Loans Held for Sale: Loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or estimated fair value. Gains and losses on sales of loans held for sale are included in the Consolidated Statements of Income in mortgage banking. Loans held for sale are sold to investors with best effort intent and ability to sell loans as long as they meet the underwriting standards of the potential investor.
Loans	Loans: Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off are reported at their outstanding principal balances less deferred fees and costs on originated loans and the allowance for loan losses. Interest income is accrued on the outstanding principal balance. Loan origination fees, net of certain direct origination costs of consumer and installment loans are recognized at the time the loan is placed on the books. Loan origination fees for all other loans are deferred and recognized as an adjustment of the yield over the life of the loan using the straight-line method without anticipating prepayments. The accrual of interest on loans is discontinued when, in management’s opinion, the borrower may be unable to meet the contractual terms of the obligation payments as they become due, or at the time the loan is 90 days past due, unless the loan is well-secured and in the process of collection. Unsecured loans are typically charged off no later than 120 days past due. Past due status is based on contractual terms of the loan. In all cases, loans are placed on nonaccrual or charged-off at an earlier date if collection of principal and interest is considered doubtful. All interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income or charged to the allowance, unless management believes that the accrual of interest is recoverable through the liquidation of collateral. Interest income on nonaccrual loans is recognized on the cash basis, until the loans are returned to accrual status. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and the loan has been performing according to the contractual terms for a period of not less than six months.
Acquired Loans	Acquired Loans: Acquired loans are those acquired in business combinations by the Company or Bank. The fair values of acquired loans with evidence of credit deterioration, Purchased Credit Impaired loans (“PCI loans”), are recorded net of a nonaccretable discount and accretable discount. Any excess of cash flows expected at acquisition over the estimated fair value is referred to as the accretable discount and is recognized in interest income over the remaining life of the loan when there is reasonable expectation about the amount and timing of such cash flows. The difference between contractually required payments at acquisition and the cash flows expected to be collected at acquisition is the nonaccretable discount, which is included in the carrying amount of acquired loans. Subsequent decreases to the expected cash flows will generally result in a provision for loan losses. Subsequent significant increases in cash flows result in a reversal of the provision for loan losses to the extent of prior charges or a reclassification of the difference from nonaccretable to accretable with a positive impact on the accretable discount. Acquired loans are initially recorded at fair value at acquisition date. Accretable discounts related to certain fair value adjustments are accreted into income over the estimated lives of the loans. The Company accounts for PCI loans acquired in the acquisition using the expected cash flows method of recognizing discount accretion based on the acquired loans’ expected cash flows. Management recasts the estimate of cash flows expected to be collected on each acquired impaired loan pool periodically. If the present value of expected cash flows for a pool is less than its carrying value, an impairment is recognized by an increase in the allowance for loan losses and a charge to the provision for loan losses. If the present value of expected cash flows for a pool is greater than its carrying value, any previously established allowance for loan losses is reversed and any remaining difference increases the accretable yield which will be taken into interest income over the remaining life of the loan pool. Purchased performing loans are recorded at fair value, including a credit discount. Credit losses on acquired performing loans are estimated based on analysis of the performing portfolio at the time of purchase. Such estimated credit losses are recorded as nonaccretable discounts in a manner similar to purchased impaired loans. The fair value discount other than for credit loss is accreted as an adjustment to yield over the estimated lives of the loans. A provision for loan losses is recorded for any deterioration in these loans subsequent to the acquisition.
Allowance for Loan Losses	Allowance for Loan Losses: The allowance for loan losses is established as losses are estimated to have occurred through a provision for loan losses charged to expense. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Confirmed losses are charged off immediately. Subsequent recoveries, if any, are credited to the allowance. The allowance is an amount that management believes will be adequate to absorb estimated losses relating to specifically identified loans, as well as probable credit losses inherent in the balance of the loan portfolio. The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of the uncollectibility of loans in light of historical experience, the nature and volume of the loan portfolio, overall portfolio quality, review of specific problem loans, current economic conditions that may affect the borrower’s ability to pay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. This evaluation does not include the effects of expected losses on specific loans or groups of loans that are related to future events or expected changes in economic conditions. The allowance consists of specific and general components. The specific component relates to loans that are classified as impaired. For impaired loans, an allowance is established when the discounted cash flows, collateral value, or observable market price of the impaired loan is lower than the carrying value of that loan. The general component covers non-impaired loans and is based on the Company’s historical loss experience adjusted for other qualitative factors. Other adjustments may be made to the allowance for pools of loans after an assessment of internal or external influences on credit quality that are not fully reflected in the historical loss or risk rating data. An unallocated component may be maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the methodologies for estimating specific and general losses in the portfolio. As part of the risk management program, an independent review is performed on the loan portfolio according to policy, which supplements management’s assessment of the loan portfolio and the allowance for loan losses. The result of the independent review is reported directly to the Audit Committee of the Board of Directors. Loans, for which the terms have been modified at the borrower’s request, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings and classified as impaired. A loan is considered impaired when it is probable, based on current information and events, the Company will be unable to collect all principal and interest payments due in accordance with the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest when due. Loans that experience insignificant payment delays and payment shortfalls are not classified as impaired. Impaired loans are measured by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Interest on accruing impaired loans is recognized as long as such loans do not meet the criteria for nonaccrual status. Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. The Company’s homogeneous loan pools include consumer real estate loans, commercial real estate loans, construction and land development loans, commercial and industrial loans, and consumer and other loans. The general allocations to these loan pools are based on the historical loss rates for specific loan types and the internal risk grade, if applicable, adjusted for both internal and external qualitative risk factors.
Troubled Debt Restructurings	Troubled Debt Restructurings: The Company designates loan modifications as Troubled Debt Restructurings ("TDRs") when for economic and legal reasons related to the borrower’s financial difficulties, it grants a concession to the borrower that it would not otherwise consider. TDRs can involve loans remaining on nonaccrual, moving to nonaccrual, or continuing on accrual status, depending on the individual facts and circumstances of the borrower. In circumstances where the TDR involves charging off a portion of the loan balance, the Company typically classifies these restructurings as nonaccrual. In connection with restructurings, the decision to maintain a loan that has been restructured on accrual status is based on a current, well documented credit evaluation of the borrower’s financial condition and prospects for repayment under the modified terms. This evaluation includes consideration of the borrower’s current capacity to pay, which among other things may include a review of the borrower’s current financial statements, an analysis of global cash flow sufficient to pay all debt obligations, a debt to income analysis, and an evaluation of secondary sources of payment from the borrower and any guarantors. This evaluation also includes an evaluation of the borrower’s current willingness to pay, which may include a review of past payment history, an evaluation of the borrower’s willingness to provide information on a timely basis, and consideration of offers from the borrower to provide additional collateral or guarantor support. The credit evaluation also reflects consideration of the borrower’s future capacity and willingness to pay, which may include evaluation of cash flow projections, consideration of the adequacy of collateral to cover all principal and interest, and trends indicating improving profitability and collectability of receivables. Restructured nonaccrual loans may be returned to accrual status based on a current, well-documented credit evaluation of the borrower’s financial condition and prospects for repayment under the modified terms. This evaluation must include consideration of the borrower’s sustained historical repayment for a reasonable period, generally a minimum of six months, prior to the date on which the loan is returned to accrual status.
Other Real Estate Owned	Other Real Estate Owned: Other real estate owned acquired through, or in lieu of, loan foreclosure are held for sale and are initially recorded at fair value less selling costs. Any write-down to fair value less cost to sell, at the time of transfer to other real estate owned is charged to the allowance for loan losses. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less costs to sell. Costs of improvements are capitalized, whereas costs relating to holding other real estate owned and subsequent write-downs to the value are expensed. The amount of residential real estate where physical possession had been obtained included with in other real estate owned assets at December 31, 2020 and 2019 was $26 thousand and $215 thousand, respectively. There were five residential real estate loans totaling $384 thousand in process of foreclosure at December 31, 2020 and none at December 31, 2019.
Premises and Equipment	​ Premises and Equipment: Land is carried at cost. Premises and equipment are carried at cost less accumulated depreciation computed on the straight-line method over the estimated useful lives of the assets or the expected terms of the leases, if shorter. Expected terms include lease option periods to the extent that the exercise of such options is reasonably assured. Maintenance and repairs are expensed as incurred while major additions and improvements are capitalized. Gains and losses on dispositions are included in current operations.
Goodwill and Intangible Assets	Goodwill and Intangible Assets: Goodwill represents the cost in excess of the fair value of net assets acquired (including identifiable intangibles) in transactions accounted for as business combinations. Goodwill has an indefinite useful life and is evaluated for impairment annually, or more frequently if events and circumstances indicate that the asset might be impaired. Other acquired intangible assets with finite lives, such as core deposit intangibles, are initially recorded at fair value and amortized over their estimated useful lives. Intangible assets are evaluated for impairment when events or changes in circumstances indicate a potential impairment accelerated basis typically between five
Transfers of Financial Assets	Transfers of Financial Assets: Transfers of financial assets are accounted for as sales, when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company - put presumptively beyond the reach of the transferor and its creditors, even in bankruptcy or other receivership, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity or the ability to unilaterally cause the holder to return specific assets.
Derivative Instruments	Derivative Instruments: The Company applies hedge accounting to certain interest rate derivatives entered into for risk management purposes. In accordance with ASC Topic 815, Derivatives and Hedging, all derivative instruments are recorded on the accompanying consolidated balance sheet at their respective fair values. The accounting for changes in fair value (i.e., gains or losses) of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship. If the derivative instrument is not designated as a hedge, changes in the fair value of the derivative instrument are recognized in earnings in the period of change. For derivative instruments that are designated and qualify as a fair value hedge, the gain or loss on the derivative instrument as well as the offsetting loss or gain 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. ​ Revenue Recognition Service charges on deposit accounts Investment services Insurance commissions Interchange and debit card transaction fees, net Other ​
Revenue Recognition	Revenue Recognition Service charges on deposit accounts Investment services Insurance commissions Interchange and debit card transaction fees, net Other
Advertising Costs	Advertising Costs: The Company expenses all advertising and marketing costs as incurred.
Income Taxes	Income Taxes: The income tax accounting guidance results in two components of income tax expense: current and deferred. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of the enacted tax law to the taxable income or excess of deductions over revenues. The Company determines deferred income taxes using the liability (or balance sheet) method. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax bases of assets and liabilities, and enacted changes in tax rates and laws are recognized in the period in which they occur. Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are recognized if it is more likely than not, based on the technical merits, that the tax position will be realized or sustained upon examination. Deferred tax assets may be reduced by deferred tax liabilities and a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized.
Stock-Based Compensation Plans	Stock-Based Compensation Plans: The Company has stock options, restricted stock awards and stock appreciation rights under stock-based compensation plans, which are described in more detail in Note 13-Employee Benefits. The plans have been accounted for under the accounting guidance (FASB ASC 718, Compensation Stock Compensation) The stock compensation accounting guidance requires that compensation cost for all stock awards be calculated and recognized over the employees’ service period, generally defined as the vesting period. For awards with graded-vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. A Black-Scholes model is used to estimate the fair value of stock options, while the market value of the Company’s common stock at the date of grant is used for restrictive stock awards and stock grants.
Comprehensive Income	Comprehensive Income: Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities, such as (1) unrealized gains and losses on available-for-sale securities and (2) unrealized gains and losses on effective portions of fair value security hedges, are reported as a separate component of the equity section of the balance sheet, such items, along with net income, are components of comprehensive income.
Business Combinations	Business Combinations: Business combinations are accounted for using the acquisition method of accounting. Under the acquisition method of accounting, acquired assets and assumed liabilities are included with the acquirer’s accounts as of the date of acquisition at estimated fair value, with any excess of purchase price over the fair value of the net assets acquired (including identifiable intangible assets) capitalized as goodwill. In the event that the fair value of the net assets acquired exceeds the purchase price, an acquisition gain is recorded for the difference in consolidated statements of income for the period in which the acquisition occurred. An intangible asset is recognized as an asset apart from goodwill when it arises from contractual or other legal rights or if it is capable of being separated or divided from the acquired entity and sold, transferred, licensed, rented or exchanged. In addition, acquisition-related costs and restructuring costs are recognized as period expenses as incurred. Estimates of fair value are subject to refinement for a period not to exceed one year from acquisition date as information relative to acquisition date fair values becomes available.
Earnings Per Common Share	Earnings Per Common Share: Basic earnings per common share is computed by dividing net income available to common stockholders 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.
Operating Segments	Operating Segments: The Company’s chief operating decision maker primarily manages operations and assesses financial performance on a Company-wide basis. However, in addition to the discrete financial information that is provided for the Company as a whole, financial information is also provided for the wealth management services, insurance services and mortgage origination segments, respectively. While the chief operating decision maker uses the financial information related to these segments to analyze business performance and allocate resources, these segments do not meet the quantitative threshold under GAAP to be considered a reportable segment. As such, these operating segments, along with the banking operations segment, are aggregated into a single reportable operating segment in the Consolidated Financial Statements. No revenues are derived from foreign countries or from external customers that comprise more than 10% of the Company’s revenues.
Recently Issued Not Yet Effective Accounting Pronouncements	Recently Issued Not Yet Effective Accounting Pronouncements: The following is a summary of recent authoritative pronouncements not yet in effect 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 In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740) In March 2020, the FASB issued ASU 2020-04 , Reference Rate Reform (Topic 848): ​ Recently Issued and Adopted Accounting Pronouncements: As of January 1, 2020, the Company adopted ASU 2019-01, Leases: Codification Improvements and liabilities on the balance sheet and disclosing essential information about leasing transactions. Specifically, ASU 2019-01 (i) allows the fair value of the underlying asset reported by lessors that are not manufacturers or dealers to continue to be its cost and not fair value as measured under the fair value definition, (ii) allows for the cash flows received for sales-type and direct financing leases to continue to be presented as results from investing, and (iii) clarifies that entities do not have to disclose the effect of the lease standard on adoption year interim amounts. The adoption of ASU 2019-01 did not have a material impact on the Company’s consolidated financial statements. As of January 1, 2020, the Company adopted ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment In August 2020, the SEC issued amendments to its disclosure rules to modernize the requirements in Regulation S-K, Item 101 on description of a business, Item 103 on legal proceedings, and Item 105 on risk factors. These amendments are intended to improve the readability of disclosures, reduce repetition, and eliminate immaterial information, thereby simplifying compliance for registrants and making disclosures more meaningful for investors. The amendments to the disclosure requirements related to a registrant’s description of its business and risk factors are intended to expand the use of a principles-based approach that gives registrants more flexibility to tailor disclosures. The amendments to the disclosure requirements related to legal proceedings continue to reflect the current, more prescriptive approach because those requirements depend less on a registrant’s specific characteristics. Further, additional human capital disclosures are required as part of the amendments to the description of the business. The final rule was effective on November 9, 2020, and the Company has incorporated the applicable changes as part of our annual filing on this Form 10-K.
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 (“CARES”) Act was passed by Congress and signed into law on March 27, 2020. The CARES Act provides an estimated $2.2 trillion to stimulate the economy by supporting individuals and businesses through loans, grants, tax changes, and other types of relief through the COVID-19 pandemic. 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 Allowance for Loan 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. The Company is a participant in the PPP. See Note 5 Loans and Allowance for Loan Losses for more information. ● Mortgage Forbearance - Under the CARES Act, through the earlier of December 31, 2020, or the termination date of the COVID-19 national emergency, a borrower with a federally backed mortgage loan that is experiencing financial hardship due to COVID-19 may request a forbearance. A multifamily borrower with a federally backed multifamily mortgage loan that was current as of February 1, 2020, and is experiencing financial hardship due to COVID-19 may request forbearance on the loan for up to 30 days, with up to two additional 30-day periods at the borrower’s request. 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 Allowance for Loan Losses for more information. ● Past Due Reporting - With regard to 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 or as classified. 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. 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 2019 consolidated financial statements were reclassified to conform to the 2020 presentation. Such reclassifications had no effect on net income and shareholders’ equity, as previously reported.

Business Combinations (Tables)

Business Combinations (Tables) - Progressive Financial Group Inc. [Member]	12 Months Ended
	Dec. 31, 2020
Business Acquisition [Line Items]
Schedule of Business Acquisitions	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 ​ ​ 78 ​ 891 Intangibles ​ — ​ 1,370 ​ ​ 1,127 ​ 2,497 Other real estate owned ​ 3,695 ​ (100) ​ ​ (1,424) ​ 2,171 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) ​ $ (219) ​ $ 298,645 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 assumed over liabilities assumed ​ $ 28,989 ​ ​ ​ ​ ​ Aggregate fair value adjustments ​ ​ $ (2,906) ​ $ (219) ​ Total identifiable net assets ​ ​ ​ ​ ​ ​ 25,864 Consideration transferred: ​ ​ ​ ​ ​ ​ Cash ​ ​ ​ ​ ​ ​ 9,838 Common stock issued ( ​ ​ ​ ​ ​ ​ 24,547 Total fair value of consideration transferred ​ ​ ​ ​ ​ ​ 34,385 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Goodwill ​ ​ ​ ​ ​ ​ $ 8,521
Loans Acquired in Acquisition	​ ​ ​ ​ ​ ​ 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
Business Acquisition, Pro Forma Information	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ ​ December 31, ​ ​ Revenue Net Income 2020: ​ ​ ​ ​ Actual PFG results included in statement of income since acquisition date ​ $ 10,227 ​ $ 3,581 ​ Supplemental consolidation pro-forma as if PFG had been acquired January 1, 2019 ​ 119,334 ​ 27,436 ​ ​ ​ ​ ​ ​ ​ ​ ​ 2019: ​ ​ ​ Supplemental consolidation pro-forma as if PFG had been acquired January 1, 2019 ​ $ 115,479 ​ $ 27,952 ​ ​

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Basic earnings per share computation: ​ ​ ​ Net income available to common stockholders ​ $ 24,332 ​ $ 26,548 Average common shares outstanding – basic ​ 14,955,423 ​ 13,953,497 Basic earnings per share ​ $ 1.63 ​ $ 1.90 Diluted earnings per share computation: ​ ​ Net income available to common stockholders ​ $ 24,332 ​ $ 26,548 Average common shares outstanding – basic ​ 14,955,423 ​ 13,953,497 Incremental shares from assumed conversions: ​ ​ Stock options and restricted stock ​ 63,752 ​ 92,869 Average common shares outstanding - diluted ​ 15,019,175 ​ 14,046,366 Diluted earnings per common share ​ $ 1.62 ​ $ 1.89

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities Reconciliation	The amortized cost and fair value of securities available-for-sale at December 31, 2020 and 2019 are summarized as follow (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ Gross Gross ​ ​ ​ ​ Amortized ​ Unrealized ​ Unrealized ​ Fair ​ ​ Cost ​ Gains ​ Losses ​ Value U.S. Government-sponsored enterprises (GSEs) ​ $ 19,015 ​ $ 41 ​ $ (56) ​ $ 19,000 Municipal securities ​ 63,792 ​ 618 ​ (19) ​ 64,391 Other debt securities ​ 3,481 ​ 22 ​ (33) ​ 3,470 Mortgage-backed securities (GSEs) ​ 91,531 ​ 382 ​ (426) ​ 91,487 Total ​ $ 177,819 ​ $ 1,063 ​ $ (534) ​ $ 178,348
Proceeds from sale of securities available for sale, gains losses and proceeds from redemption	Proceeds from sale and maturities and calls of securities available for sale, gross gains and gross losses were as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ ​ 2020 2019 Proceeds from sales ​ $ 11,759 ​ $ 16,515 Gross gains ​ $ 7 ​ $ 35 Gross losses ​ $ (1) ​ $ (1) ​ ​ ​ ​ ​ ​ ​ Proceeds from maturities and calls ​ $ 49,633 ​ $ 15,555
Investments Classified by Contractual Maturity Date	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ Amortized Fair ​ ​ Cost ​ Value Due in one year or less ​ $ 4,907 ​ $ 4,949 Due from one year to five years ​ 4,159 ​ 4,174 Due from five years to ten years ​ 36,172 ​ 36,442 Due after ten years ​ 99,951 ​ 102,072 ​ ​ 145,189 ​ 147,637 Mortgage-backed securities ​ 66,425 ​ 67,997 Total ​ $ 211,614 ​ $ 215,634
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, as of December 31, 2020 and 2019 (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As of 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 Municipal securities ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ — ​ — 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As of December 31, 2019 ​ ​ 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) ​ $ 2,972 ​ $ (43) ​ 2 ​ $ 5,987 ​ $ (13) ​ 2 ​ $ 8,959 ​ $ (56) ​ 4 Municipal securities ​ 3,656 ​ (16) ​ 4 ​ 527 ​ (3) ​ 1 ​ 4,183 ​ (19) ​ 5 Other debt securities ​ — ​ — ​ — ​ 947 ​ (33) ​ 1 ​ 947 ​ (33) ​ 1 Mortgage-backed securities (GSEs) ​ 13,208 ​ (194) ​ 10 ​ 19,988 ​ (232) ​ 31 ​ 33,196 ​ (426) ​ 41 Total ​ $ 19,836 ​ $ (253) ​ 16 ​ $ 27,449 ​ $ (281) ​ 35 ​ $ 47,285 ​ $ (534) ​ 51 ​
Schedule of Other Investments	The following is the amortized cost and carrying value of other investments (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ 2020 2019 Federal Reserve Bank stock ​ $ 8,606 $ 7,917 Federal Home Loan Bank stock ​ 5,838 ​ 4,646 First National Bankers Bank stock ​ 350 ​ 350 Total ​ $ 14,794 ​ $ 12,913

Loans and Allowance for Loan _2

Loans and Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Receivables [Abstract]
Schedule of Loans	Major categories of loans are summarized as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ ​ PCI ​ All Other ​ ​ ​ ​ PCI ​ All Other ​ ​ ​ ​ Loans Loans Total Loans Loans Total Commercial real estate ​ $ 16,123 ​ $ 996,853 ​ $ 1,012,976 ​ $ 15,255 ​ $ 890,051 ​ $ 905,306 Consumer real estate ​ 10,258 ​ 433,672 ​ 443,930 ​ 6,541 ​ 410,941 ​ 417,482 Construction and land development ​ 5,348 ​ 272,727 ​ 278,075 ​ 4,458 ​ 223,168 ​ 227,626 Commercial and industrial ​ 308 ​ 634,138 ​ 634,446 ​ 407 ​ 336,668 ​ 337,075 Consumer and other ​ 27 ​ 12,789 ​ 12,816 ​ 326 ​ 9,577 ​ 9,903 Total loans ​ 32,064 ​ 2,350,179 ​ 2,382,243 ​ 26,987 ​ 1,870,405 ​ 1,897,392 Less: Allowance for loan losses ​ (309) ​ (18,037) ​ (18,346) ​ (156) ​ (10,087) ​ (10,243) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Loans, net ​ $ 31,755 ​ $ 2,332,142 ​ $ 2,363,897 ​ $ 26,831 ​ $ 1,860,318 ​ $ 1,887,149
Schedule of Impaired and Performing Loans Receivable	The composition of loans by loan classification for impaired and performing loan status is summarized in the tables below (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Real Estate ​ Development ​ Industrial ​ and Other ​ Total December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans $ 992,982 ​ $ 432,356 ​ $ 272,727 ​ $ 633,992 ​ $ 12,789 ​ $ 2,344,846 Impaired loans ​ 3,871 ​ 1,316 ​ — ​ 146 ​ — ​ 5,333 ​ ​ 996,853 ​ 433,672 ​ 272,727 ​ 634,138 ​ 12,789 ​ 2,350,179 PCI loans ​ 16,123 ​ 10,258 ​ 5,348 ​ 308 ​ 27 ​ 32,064 Total loans ​ $ 1,012,976 ​ $ 443,930 ​ $ 278,075 ​ $ 634,446 ​ $ 12,816 ​ $ 2,382,243 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans $ 889,795 ​ $ 409,394 ​ $ 222,621 ​ $ 336,508 ​ $ 9,577 ​ $ 1,867,895 Impaired loans ​ 256 ​ 1,547 ​ 547 ​ 160 ​ — ​ 2,510 ​ ​ 890,051 ​ 410,941 ​ 223,168 ​ 336,668 ​ 9,577 ​ 1,870,405 PCI loans ​ 15,255 ​ 6,541 ​ 4,458 ​ 407 ​ 326 ​ 26,987 Total loans ​ $ 905,306 ​ $ 417,482 ​ $ 227,626 ​ $ 337,075 ​ $ 9,903 ​ $ 1,897,392 ​ ​
Schedule of Allowance for Loan Losses for Impaired and Performing Loans Receivable	The following tables show the allowance for loan losses allocation by loan classification for impaired, PCI, and performing loans (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ Consumer ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ and ​ ​ ​ ​ ​ Real Estate ​ Real Estate ​ Development ​ Industrial ​ Other ​ Total December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans $ 7,579 $ 3,267 $ 2,076 $ 4,768 $ 110 $ 17,800 Impaired loans ​ — ​ 116 ​ — ​ 121 ​ — ​ 237 ​ ​ 7,579 ​ 3,383 ​ 2,076 ​ 4,889 ​ 110 ​ 18,037 PCI loans ​ — ​ 88 ​ — ​ 218 ​ 3 ​ 309 Total loans ​ $ 7,579 ​ $ 3,471 ​ $ 2,076 ​ $ 5,107 ​ $ 113 ​ $ 18,346 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Performing loans $ 4,491 $ 2,159 $ 1,127 $ 1,766 $ 69 $ 9,612 Impaired loans ​ — ​ 343 ​ — ​ 132 ​ — ​ 475 ​ ​ 4,491 ​ 2,502 ​ 1,127 ​ 1,898 ​ 69 ​ 10,087 PCI loans ​ 17 ​ 74 ​ — ​ 59 ​ 6 ​ 156 Total loans ​ $ 4,508 ​ $ 2,576 ​ $ 1,127 ​ $ 1,957 ​ $ 75 ​ $ 10,243 ​
Schedule of Allowance for Loan Losses		The following tables detail the changes in the allowance for loan losses by loan classification (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2020 ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ and Other ​ Total Beginning balance $ 4,508 $ 2,576 $ 1,127 $ 1,957 $ 75 $ 10,243 Loans charged-off ​ — ​ (23) ​ — ​ (420) ​ (398) ​ (841) Recoveries of loans charged-off ​ 19 ​ 39 ​ 2 ​ 114 ​ 87 ​ 261 Provision charged to expense ​ 3,052 ​ 879 ​ 947 ​ 3,456 ​ 349 ​ 8,683 Ending balance ​ $ 7,579 ​ $ 3,471 ​ $ 2,076 ​ $ 5,107 ​ $ 113 ​ $ 18,346 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2019 ​ ​ ​ ​ Consumer ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ Commercial ​ Real ​ and Land ​ and ​ Consumer ​ ​ ​ ​ ​ Real Estate ​ Estate Development ​ Industrial ​ and Other ​ Total Beginning balance $ 3,639 $ 1,789 $ 795 $ 1,746 $ 306 $ 8,275 Loans charged-off ​ (36) ​ (4) ​ — ​ (659) ​ (344) ​ (1,043) Recoveries of loans charged-off ​ 65 ​ 164 ​ 8 ​ 77 ​ 98 ​ 412 Provision charged to expense ​ 840 ​ 627 ​ 324 ​ 793 ​ 15 ​ 2,599 Ending balance ​ $ 4,508 ​ $ 2,576 ​ $ 1,127 ​ $ 1,957 ​ $ 75 ​ $ 10,243
Loan Credit Quality Indicators	The following tables outline the amount of each loan classification and the amount categorized into each risk rating (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ ​ ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ Consumer ​ ​ ​ Non PCI Loans: ​ Real Estate ​ Real Estate Development ​ Industrial ​ 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: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 ​ $ 1,012,976 ​ $ 443,930 ​ $ 278,075 ​ $ 634,446 ​ $ 12,816 ​ $ 2,382,243 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ ​ ​ ​ Construction ​ Commercial ​ ​ ​ ​ ​ ​ ​ Commercial ​ Consumer ​ and Land ​ and ​ Consumer ​ ​ ​ Non PCI Loans: ​ Real Estate ​ Real Estate Development ​ Industrial ​ and Other ​ Total Pass $ 860,447 $ 407,336 $ 216,459 $ 328,564 $ 9,462 $ 1,822,268 Watch ​ 25,180 ​ 989 ​ 6,089 ​ 6,786 ​ 40 ​ 39,084 Special mention ​ 4,057 ​ 738 ​ — ​ 1,033 ​ — ​ 5,828 Substandard ​ 367 ​ 1,713 ​ 620 ​ 228 ​ 51 ​ 2,979 Doubtful ​ — ​ 165 ​ — ​ 57 ​ 24 ​ 246 Total ​ ​ 890,051 ​ ​ 410,941 ​ ​ 223,168 ​ ​ 336,668 ​ ​ 9,577 ​ ​ 1,870,405 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ PCI Loans: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pass ​ 12,473 ​ 5,258 ​ 902 ​ 41 ​ 300 ​ 18,974 Watch ​ 2,234 ​ 38 ​ 3,556 ​ — ​ 13 ​ 5,841 Special mention ​ 139 ​ 60 ​ — ​ — ​ — ​ 199 Substandard ​ 409 ​ 1,185 ​ — ​ 366 ​ 13 ​ 1,973 Doubtful ​ — ​ — ​ — ​ — ​ — ​ — Total ​ ​ 15,255 ​ ​ 6,541 ​ ​ 4,458 ​ ​ 407 ​ ​ 326 ​ ​ 26,987 Total loans ​ $ 905,306 ​ $ 417,482 ​ $ 227,626 ​ $ 337,075 ​ $ 9,903 ​ $ 1,897,392
Past Due Loans and Leases	The following tables present an aging analysis of our loan portfolio (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 PCI Current Total ​ Accruing Accruing and Accruing ​ Nonaccrual ​ Nonaccrual ​ Loans ​ Loans ​ Loans 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 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ 30-60 Days 61-89 Days Past Due 90 ​ ​ Total ​ ​ ​ ​ ​ ​ ​ Past Due and Past Due and Days or More ​ ​ ​ Past Due and PCI Current Total ​ Accruing Accruing and Accruing ​ Nonaccrual ​ Nonaccrual ​ Loans ​ Loans ​ Loans Commercial real estate ​ $ 466 ​ $ 22 ​ $ — ​ $ 124 ​ $ 612 ​ $ 15,255 ​ $ 889,439 ​ $ 905,306 Consumer real estate ​ 1,564 ​ 30 ​ — ​ 1,872 ​ 3,466 ​ 6,541 ​ 407,475 ​ 417,482 Construction and land development ​ 507 ​ — ​ 607 ​ 620 ​ 1,734 ​ 4,458 ​ 221,434 ​ 227,626 Commercial and industrial ​ 559 ​ 53 ​ — ​ 57 ​ 669 ​ 407 ​ 335,999 ​ 337,075 Consumer and other ​ 86 ​ 14 ​ — ​ 70 ​ 170 ​ 326 ​ 9,407 ​ 9,903 Total ​ $ 3,182 ​ $ 119 ​ $ 607 ​ $ 2,743 ​ $ 6,651 ​ $ 26,987 ​ $ 1,863,754 ​ $ 1,897,392
Impaired Loans	The following is an analysis of the impaired loan portfolio, including PCI loans, detailing the related allowance recorded (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 December 31, 2019 ​ ​ ​ Unpaid ​ ​ ​ ​ Unpaid ​ ​ ​ Recorded Principal Related Recorded Principal Related ​ ​ Investment Balance ​ Allowance ​ Investment Balance ​ Allowance Impaired loans without a valuation allowance: ​ ​ ​ ​ ​ ​ Commercial real estate ​ $ 3,871 ​ $ 3,872 ​ $ — ​ $ 256 ​ $ 261 ​ $ — Consumer real estate ​ 888 ​ 888 ​ — ​ 553 ​ 553 ​ — Construction and land development ​ — ​ — ​ — ​ 547 ​ 547 ​ — Commercial and industrial ​ — ​ — ​ — ​ — ​ — ​ — Consumer and other ​ — ​ — ​ — ​ — ​ — ​ — ​ ​ 4,759 ​ 4,760 ​ — ​ 1,356 ​ 1,361 ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans with a valuation allowance: ​ ​ ​ ​ ​ ​ Commercial real estate ​ — ​ — ​ — ​ — ​ — ​ — Consumer real estate ​ 428 ​ 428 ​ 116 ​ 994 ​ 994 ​ 343 Construction and land development ​ — ​ — ​ — ​ — ​ — ​ — Commercial and industrial ​ 146 ​ 146 ​ 121 ​ 160 ​ 160 ​ 132 Consumer and other ​ — ​ — ​ — ​ — ​ — ​ — ​ ​ 574 ​ 574 ​ 237 ​ 1,154 ​ 1,154 ​ 475 PCI loans: ​ ​ ​ ​ ​ ​ Commercial real estate ​ — ​ — ​ — ​ 17 ​ 99 ​ 17 Consumer real estate ​ 1,827 ​ 2,086 ​ 88 ​ 1,205 ​ 1,371 ​ 74 Construction and land development ​ — ​ — ​ — ​ — ​ — ​ — Commercial and industrial ​ 270 ​ 234 ​ 218 ​ 396 ​ 534 ​ 59 Consumer and other ​ 21 ​ 20 ​ 3 ​ 45 ​ 51 ​ 6 ​ ​ 2,118 ​ 2,340 ​ 309 ​ 1,663 ​ 2,055 ​ 156 Total impaired loans ​ $ 7,451 ​ $ 7,674 ​ $ 546 ​ $ 4,173 ​ $ 4,570 ​ $ 631 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ Average Interest Average Interest ​ Recorded Income Recorded Income ​ ​ Investment ​ Recognized Investment Recognized Impaired loans without a valuation allowance: ​ ​ ​ ​ Commercial real estate ​ $ 1,073 ​ $ 12 ​ $ 399 ​ $ 30 Consumer real estate ​ 701 ​ 33 ​ 725 ​ 15 Construction and land development ​ 231 ​ — ​ 619 ​ 5 Commercial and industrial ​ — ​ — ​ 20 ​ 1 Consumer and other ​ — ​ — ​ 11 ​ 1 ​ ​ 2,005 ​ 45 ​ 1,774 ​ 52 Impaired loans with a valuation allowance: ​ ​ ​ ​ ​ Commercial real estate ​ 158 ​ 2 ​ 9 ​ 1 Consumer real estate ​ 656 ​ 24 ​ 397 ​ 17 Construction and land development ​ — ​ — ​ 11 ​ — Commercial and industrial ​ 244 ​ 8 ​ 430 ​ 16 Consumer and other ​ — ​ — ​ 23 ​ — ​ ​ 1,058 ​ 34 ​ 870 ​ 34 PCI loans: ​ ​ ​ ​ Commercial real estate ​ 200 ​ 1 ​ 1,518 ​ (25) Consumer real estate ​ 1,461 ​ 117 ​ 922 ​ 42 Construction and land development ​ 46 ​ — ​ — ​ — Commercial and industrial ​ 321 ​ 7 ​ 79 ​ 9 Consumer and other ​ 27 ​ — ​ 9 ​ 1 ​ ​ 2,055 ​ 125 ​ 2,528 ​ 27 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total impaired loans ​ $ 5,118 ​ $ 204 ​ $ 5,172 ​ $ 113
Troubled Debt Restructurings on Loans	The following table presents a summary of loans that were modified as troubled debt restructurings during the year ended December 31, 2020 (dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pre-Modification Post-Modification ​ ​ ​ Outstanding Outstanding ​ ​ ​ Recorded Recorded December 31, 2020 ​ Number of Contracts Investment Investment Consumer real estate ​ 1 ​ $ 108 ​ $ 108 Commercial and industrial ​ 3 ​ ​ 141 ​ ​ 141 Consumer other ​ 1 ​ ​ 8 ​ ​ 8 ​ ​ ​ ​ ​ ​ ​ ​
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Acquired During Period Carrying Amount Of Loans	The Company has acquired loans which 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 for the years ended December 31, are as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Commercial real estate ​ $ 23,787 ​ $ 21,570 Consumer real estate ​ 12,692 ​ 8,411 Construction and land development ​ 1,812 ​ 5,394 Commercial and industrial ​ 6,521 ​ 2,540 Consumer and other ​ 161 ​ 504 Total loans ​ 44,973 ​ 38,419 Less: Remaining purchase discount ​ (12,909) ​ (11,432) Total loans, net of purchase discount ​ 32,064 ​ 26,987 Less: Allowance for loan losses ​ (309) ​ (156) Carrying amount, net of allowance ​ $ 31,755 ​ $ 26,831
Schedule of Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement	The following is a summary of the accretable yield on acquired loans for the years ended December 31, (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Accretable yield, beginning of period ​ $ 8,454 ​ $ 7,052 Additions ​ 2,515 ​ — Accretion income ​ (5,347) ​ (4,627) Reclassification ​ 2,792 ​ 3,555 Other changes, net ​ 8,475 ​ 2,474 Accretable yield, end of period ​ $ 16,889 ​ $ 8,454
Schedule of Loan to Directors, Officers and Affiliated Parties	​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Balance, beginning of year ​ $ 24,091 ​ $ 31,246 Disbursements ​ 7,108 ​ 16,297 Repayments ​ (16,740) ​ (23,452) Balance, end of year ​ $ 14,459 ​ $ 24,091

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Summary of Premises and Equipment	A summary of premises and equipment at December 31, is as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Useful Life 2020 2019 Land and land improvements Indefinite ​ $ 16,724 ​ $ 14,712 Building and leasehold improvements 15-40 years ​ 53,701 ​ 38,640 Furniture, fixtures and equipment 3-7 years ​ 18,095 ​ 13,744 Construction in progress ​ 964 ​ 5,523 Total, gross ​ 89,484 ​ 72,619 Accumulated depreciation ​ (16,802) ​ (13,186) Total, net ​ $ 72,682 ​ $ 59,433

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, December 31, ​ ​ 2020 ​ 2019 Goodwill: ​ ​ Balance, beginning of period ​ $ 65,614 ​ $ 66,087 Adjustment to values initially recorded for Acquisition of Foothills Bancorp, Inc. ​ — ​ (473) Acquisition of PFG ​ 8,521 ​ — Balance, end of the period ​ $ 74,135 ​ $ 65,614
Finite-lived Intangible Assets Amortization Expense	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Core Deposit Insurance Agency Insurance Agency ​ ​ Amortized other intangible assets: ​ Intangibles ​ Customer Relationships ​ Tradename ​ Total ​ Beginning balance January 1, 2020 ​ $ 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning balance January 1, 2019 ​ $ 14,550 ​ $ - ​ $ - ​ $ 14,550 ​ Less: accumulated amortization ​ ​ (2,971) ​ ​ - ​ ​ - ​ ​ (2,971) ​ Balance, December 31, 2019, other intangible assets, net ​ ​ 11,579 ​ ​ - ​ ​ - ​ ​ 11,579 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	​ ​ ​ ​ ​ 2021 ​ $ 1,760 2022 ​ 1,697 2023 ​ 1,636 2024 ​ 1,588 2025 ​ ​ 1,531 Thereafter ​ 4,124 Total ​ $ 12,336

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2020
Deposits [Abstract]
Scheduled Maturities Of Time Deposit	​ ​ ​ ​ ​ 2021 $ 389,097 2022 ​ 82,271 2023 ​ 44,957 2024 ​ 22,444 2025 ​ 10,906 Thereafter ​ 487 Total ​ $ 550,162

Borrowings and Line of Credit (

Borrowings and Line of Credit (Tables)	12 Months Ended
	Dec. 31, 2020
Schedule of Federal Home Loan Bank, Advances	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Long-term advance dated September 10, 2019, requiring monthly interest payments, fixed at 0.93%, with a put option exercisable on September 10, 2020 and then quarterly thereafter, principal due in September 2029. 1 $ 25,000 ​ $ 25,000 ​ ​ ​ ​ ​ ​ ​ Long-term advance dated February 28, 2020, requiring monthly interest payments, fixed at 0.46%, with a put option exercisable on February 26, 2021 and then quarterly thereafter, principal due in February 2030. 1 ​ 50,000 ​ ​ — Total $ 75,000 ​ $ 25,000 ​ 1
Schedule of Maturities of Advances and Other Borrowings	​ ​ ​ ​ ​ 2021 $ 45 2022 ​ 47 2023 ​ 50 2024 ​ 52 2025 ​ 54 Thereafter ​ 75,148 Total ​ $ 75,396
Federal Reserve Bank
Schedule of funding capacity and loans secured for borrowings	At December 31, 2020 and 2019, the funding capacity and loans secured for borrowings was as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Maximum funding capacity $ 149,219 ​ $ 6,994 Borrowings ​ — ​ ​ — Additional funding capacity ​ $ 149,219 ​ $ 6,994 Loans secured for borrowings $ 258,774 ​ $ 9,562
Federal Home Loan Bank Advances
Schedule of funding capacity and loans secured for borrowings	At December 31, 2020 and 2019, the borrowing capacity and loans secured for advances was as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Maximum borrowing capacity $ 194,445 ​ $ 156,059 FHLB advances ​ (75,000) ​ ​ (25,000) Secured lines of credit ​ ​ (83,982) ​ ​ (83,982) Additional borrowing capacity ​ $ 35,463 ​ $ 47,077 Loans secured for advances $ 281,670 ​ $ 554,371

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2020
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) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, ​ ​ ​ Classification ​ 2020 ​ 2019 ​ Assets: ​ ​ ​ ​ Operating lease right-of-use assets Other assets ​ $ 4,797 ​ $ 5,470 ​ Liabilities: ​ ​ ​ ​ Operating lease liabilities Other liabilities ​ $ 4,827 ​ $ 5,479 ​
Summary of Lease Costs and Other Information	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. The following table represents lease costs and other lease information for the years ended December 31, (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Lease costs: ​ ​ ​ ​ Operating lease costs ​ $ 1,044 ​ $ 703 Short-term lease costs ​ — ​ 12 Variable lease costs ​ 111 ​ 95 Total ​ $ 1,155 ​ $ 810 Other information: ​ ​ Cash paid for amounts included in the measurement of lease liabilities: ​ ​ Operating cash flows from operating leases ​ $ 1,265 ​ $ 693
Schedule of Remaining Minimum Lease Payments	Future minimum payments for operating leases with initial or remaining terms of one year or more as of December 31, 2020 were as follows (in thousands) ​ ​ ​ ​ ​ Amounts 2021 $ 804 2022 ​ 623 2023 ​ 485 2024 ​ 366 2025 ​ 348 Thereafter ​ 3,032 Total future minimum lease payments ​ 5,658 Amounts representing interest ​ (831) Present value of net future minimum lease payments ​ $ 4,827

Income Taxes (Table)

Income Taxes (Table)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	Income tax expense in the consolidated statements of income for the years ended December 31, 2020 and 2019, includes the following (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Current tax expense ​ ​ Federal ​ $ 6,330 ​ $ 5,143 State ​ 1,447 ​ 974 Deferred tax expense related to: ​ ​ Federal ​ (991) ​ 678 State ​ (228) ​ 102 Total income tax expense ​ $ 6,558 ​ $ 6,897
Schedule of Effective Income Tax Rate Reconciliation	​ The income tax expense is different from the expected tax expense computed by multiplying income before income tax expense by the statutory income tax rate of 21%. The reasons for this difference are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Federal income tax expense computed at the statutory rate ​ $ 6,487 ​ $ 7,024 State income taxes, net of federal tax benefit ​ 923 ​ 872 Nondeductible acquisition expenses ​ 109 ​ — Tax-exempt interest ​ (555) ​ (469) Tax benefit from stock options ​ (14) ​ (24) Other ​ (392) ​ (506) Total income tax expense ​ $ 6,558 ​ $ 6,897
Schedule of Deferred Tax Assets and Liabilities	The components of the net deferred tax asset as of December 31, 2020 and 2019, were as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Deferred tax assets: ​ ​ Allowance for loan losses $ 4,744 ​ $ 2,688 Fair value adjustments ​ 3,854 ​ 4,098 Unrealized losses on securities ​ — ​ — Unrealized losses on hedges or derivative securities ​ 278 ​ 79 Other real estate owned ​ 523 ​ 25 Deferred compensation ​ 1,103 ​ 976 Lease liability ​ 1,248 ​ 1,438 Federal net operating loss carryforward ​ — ​ 221 Other ​ 82 ​ 442 Total deferred tax assets ​ 11,832 ​ 9,967 Deferred tax liabilities: ​ ​ Accumulated depreciation ​ 1,374 ​ 1,610 Core deposit intangible ​ 3,112 ​ 2,971 Right of use asset ​ 1,240 ​ 1,435 Unrealized gains on available-for-sale securities ​ 1,051 ​ 139 Other ​ 663 ​ 332 Total deferred tax liabilities ​ 7,440 ​ 6,487 Net deferred tax asset ​ $ 4,392 ​ $ 3,480

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2020
Defined Benefit Plan [Abstract]
Schedule of Option Activity	A summary of the activity in these stock option plans is presented in the following table: ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ ​ Exercisable ​ ​ Number ​ Price Outstanding at December 31, 2018 ​ 170,625 ​ $ 10.61 Granted ​ — ​ ​ — Exercised ​ (31,931) ​ ​ 11.85 Forfeited ​ (2,036) ​ ​ 12.20 Outstanding at December 31, 2019 ​ 136,658 ​ ​ 10.29 Granted ​ — ​ ​ — Exercised ​ (33,556) ​ ​ 10.12 Forfeited ​ (3,485) ​ ​ 15.05 Outstanding at December 31, 2020 ​ 99,617 ​ ​ 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 1.19 years ​ $ 6.60 19,250 ​ $ 6.60 ​ 6.80 11,250 0.16 years ​ 6.80 11,250 ​ 6.80 ​ 9.48 18,500 2.19 years ​ 9.48 18,500 ​ 9.48 ​ 9.60 21,750 2.99 years ​ 9.60 21,750 ​ 9.60 ​ 11.76 2,266 1.50 years ​ 11.76 2,266 ​ 11.76 ​ 15.05 26,601 4.57 years ​ 15.05 26,601 ​ 15.05 Outstanding, end of period 99,617 2.57 years ​ $ 10.19 ​ 99,617 ​ $ 10.19
Schedule of Non-vested Restricted Stock Awards	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ ​ ​ Grant-Date ​ ​ Number ​ Fair Value Balance at December 31, 2019 65,400 ​ $ 21.04 Granted 43,613 ​ 15.95 Vested (7,295) ​ 18.32 Forfeited/expired (1,500) ​ 18.12 Balance at December 31, 2020 100,218 ​ $ 19.07
Share-based Payment Arrangement, Stock Appreciation Right, Activity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ Number Exercisable Price Outstanding at December 31, 2018 ​ 50,000 ​ $ 21.64 Granted ​ 21,000 ​ ​ 18.12 Exercised ​ — ​ ​ — Forfeited/Expired ​ (4,000) ​ ​ 21.67 Outstanding at December 31, 2019 ​ 67,000 ​ ​ 20.54 Granted ​ 18,000 ​ ​ 15.19 Exercised ​ — ​ ​ — Forfeited/Expired ​ (12,000) ​ ​ 21.72 Outstanding at December 31, 2020 ​ 73,000 ​ $ 19.02 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 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 18,000 3.00 years $ 15.19 — $ — ​ 18.12 21,000 2.00 years ​ 18.12 — ​ — ​ 21.61 34,000 1.00 years ​ 21.61 — ​ — ​ Outstanding, end of period 73,000 1.78 years ​ $ 19.02 — ​ $ —

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Other Commitments	A summary of the Company's total contractual amount for all off-balance sheet commitments for the years ended December 31, 2020 and 2019, are as follows (in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ 2020 ​ 2019 Commitments to extend credit $ 476,841 ​ $ 384,411 Standby letters of credit ​ 5,261 ​ 11,727 ​

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2020
Banking and Thrift [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	Actual and required capital levels at December 31, 2020 and 2019 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 ​ 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) 2 ​ 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) 2 ​ 299,314 9.58 % 124,969 4.00 % 156,212 5.00 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartFinancial: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 287,937 14.02 % $ 164,313 8.00 % N/A N/A ​ Tier 1 Capital (to Risk Weighted Assets) ​ 238,433 11.61 % 123,235 6.00 % N/A N/A ​ Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 238,433 11.61 % 92,426 4.50 % N/A N/A ​ Tier 1 Capital (to Average Assets) ​ 238,433 10.34 % 92,258 4.00 % N/A N/A ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ SmartBank: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Capital (to Risk Weighted Assets) ​ $ 273,432 13.31 % $ 164,305 8.00 % $ 205,382 10.00 % Tier 1 Capital (to Risk Weighted Assets) ​ 263,189 12.81 % 123,229 6.00 % 164,305 8.00 % Common Equity Tier 1 Capital (to Risk Weighted Assets) ​ 263,189 12.81 % 92,422 4.50 % 133,498 6.50 % Tier 1 Capital (to Average Assets) ​ 263,189 11.41 % 92,254 4.00 % 115,317 5.00 % 1 The prompt corrective action provisions are applicable at the Bank level only. 2 Average assets for the above calculations were based on the most recent quarter.

Fair Value of Assets and Liab_2

Fair Value of Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
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 are as follows (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) 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 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ Assets: ​ ​ ​ ​ Securities available-for-sale: ​ ​ ​ ​ U.S. Government-sponsored enterprises (GSEs) ​ $ 19,000 ​ $ — ​ $ 19,000 ​ $ — Municipal securities ​ 64,391 ​ — ​ 64,391 ​ — Other debt securities ​ 3,470 ​ — ​ 3,470 ​ — Mortgage-backed securities (GSEs) ​ 91,487 ​ — ​ 91,487 ​ — Total securities available-for-sale ​ $ 178,348 ​ $ — ​ $ 178,348 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ Derivative financial instruments ​ $ 3,446 ​ ​ — ​ $ 3,446 ​ ​ —
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis	Under certain circumstances management makes adjustments to 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) December 31, 2020: ​ ​ ​ ​ Impaired loans ​ $ 2,455 ​ $ — ​ $ — ​ $ 2,455 Other real estate owned ​ 4,619 ​ — ​ — ​ 4,619 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ Impaired loans ​ $ 2,185 ​ $ — ​ $ — ​ $ 2,185 Other real estate owned ​ 1,757 ​ — ​ — ​ 1,757 ​ 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 ​ December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans ​ $ 2,455 Appraisal Appraisal discounts 9 % Other real estate owned ​ 4,619 Appraisal Appraisal discounts 22 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Impaired loans ​ $ 2,185 Appraisal Appraisal discounts 22 % Other real estate owned ​ 1,757 Appraisal Appraisal discounts 29 %
Fair Value, by Balance Sheet Grouping	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value Measurements Using ​ Carrying ​ ​ ​ ​ ​ ​ Estimated ​ ​ Amount ​ Level 1 ​ Level 2 ​ Level 3 ​ Fair Value 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, 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 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 183,971 $ 183,971 $ — $ — ​ $ 183,971 Securities available-for-sale ​ 178,348 ​ — ​ 178,348 ​ — ​ 178,348 Other investments ​ 12,913 ​ N/A ​ N/A ​ N/A ​ N/A Loans, net and loans held for sale ​ 1,893,005 ​ — ​ — ​ 1,879,825 ​ 1,879,825 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: ​ ​ ​ ​ ​ ​ Noninterest-bearing demand deposits ​ 364,155 ​ — ​ 364,155 ​ — ​ 364,155 Interest-bearing demand deposits ​ 380,234 ​ — ​ 380,234 ​ — ​ 380,234 Money market and savings deposits ​ 623,284 ​ — ​ 623,284 ​ — ​ 623,284 Time deposits ​ 679,541 ​ — ​ 681,902 ​ — ​ 681,902 Borrowings ​ ​ 31,623 ​ ​ — ​ ​ 31,029 ​ ​ — ​ ​ 31,029 Subordinated debt ​ 39,261 ​ — ​ — ​ 35,868 ​ 35,868 Derivative financial instruments ​ 3,446 ​ — ​ 3,446 ​ — ​ 3,446

Derivatives (Tables)

Derivatives (Tables)	12 Months Ended
	Dec. 31, 2020
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 December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements - securities Other liabilities 7.13 3.08 % 3 month LIBOR ​ $ 36,000 $ (6,174) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2019: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap agreements - securities Other liabilities 8.20 3.09 % 3 month LIBOR ​ $ 36,000 ​ $ (3,446)
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) ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, ​ ​ 2020 ​ 2019 Interest income on tax-exempt securities ​ $ 2,150 ​ $ 1,741 Effects of fair value hedge relationships ​ (781) ​ (223) Reported interest income on tax-exempt securities ​ $ 1,369 ​ $ 1,518 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ December 31, Gain (loss) on fair value hedging relationship ​ 2020 ​ 2019 Interest rate swap agreements - securities: ​ ​ ​ Hedged items ​ $ (6,174) ​ $ (3,446) Derivative designated as hedging instruments ​ $ 6,174 ​ $ 3,446
Schedule of Fair Value Hedges	The following amounts were recorded on the balance sheet related to cumulative basis adjustments for fair value hedges at December 31, 2020 and 2019 (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 December 31, 2020: ​ ​ Securities available-for-sale $ 44,017 ​ $ (1,063) December 31, 2019: ​ ​ Securities available-for-sale ​ $ 42,710 ​ $ (302)

Other comprehensive income (l_2

Other comprehensive income (loss) (Tables)	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Summary of Accumulated Other Comprehensive Income (Loss)	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 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) ​ 2,581 ​ (562) ​ 2,019 Reclassification of amounts included in net income ​ (4) ​ — ​ (4) Net other comprehensive income (loss) during period ​ 2,577 ​ (562) ​ 2,015 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, December 31, 2020 ​ $ 2,968 ​ $ (785) ​ $ 2,183 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2019 ​ ​ ​ ​ ​ Accumulated ​ ​ Securities ​ Fair Value ​ Other ​ ​ Available-for- ​ Municipal ​ Comprehensive ​ Sale Security Hedges Income (Loss) Beginning balance, December 31, 2018 ​ $ (1,979) ​ $ (786) ​ $ (2,765) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Other comprehensive income (loss) ​ 2,395 ​ 563 ​ 2,958 Reclassification of amounts included in net income ​ (25) ​ — ​ (25) Net other comprehensive income (loss) during period ​ 2,370 ​ 563 ​ 2,933 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending balance, December 31, 2019 ​ $ 391 ​ $ (223) ​ $ 168

Condensed Parent Information (T

Condensed Parent Information (Tables)	12 Months Ended
	Dec. 31, 2020
Condensed Financial Information Disclosure [Abstract]
Condensed Balance Sheet	CONDENSED BALANCE SHEETS December 31, 2020 and 2019 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 ASSETS: ​ ​ Cash ​ $ 8,062 ​ $ 13,155 Investment in subsidiaries ​ 384,743 ​ 337,503 Other assets ​ 4,413 ​ 1,996 ​ ​ ​ ​ ​ ​ ​ Total assets ​ $ 397,218 ​ $ 352,654 ​ ​ ​ ​ ​ ​ ​ LIABILITIES AND SHAREHOLDERS’ EQUITY: ​ ​ Other liabilities ​ $ 704 ​ $ 646 Other borrowings ​ 39,346 ​ 39,261 ​ ​ ​ ​ ​ ​ ​ Total liabilities ​ 40,050 ​ 39,907 ​ ​ ​ ​ ​ ​ ​ Shareholders’ equity ​ 357,168 ​ 312,747 ​ ​ ​ ​ ​ ​ ​ Total liabilities and shareholders’ equity ​ $ 397,218 ​ $ 352,654
Condensed Income Statement	CONDENSED STATEMENTS OF INCOME Years ended December 31, 2020 and 2019 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 INCOME: ​ ​ ​ ​ ​ ​ Interest income ​ $ — ​ $ — Merger termination fee ​ — ​ 6,400 Total income ​ — ​ 6,400 ​ ​ ​ ​ ​ ​ ​ EXPENSES: ​ ​ Interest expense ​ 2,334 ​ 2,341 Other operating expenses ​ 1,625 ​ 2,755 Total expense ​ 3,959 ​ 5,096 ​ ​ ​ ​ ​ ​ ​ Income (loss) before equity in undistributed earnings of subsidiaries and income tax benefit ​ (3,959) ​ 1,304 Income tax benefit (expense) ​ 908 ​ (389) Income before equity in undistributed net income of subsidiaries ​ (3,051) ​ 915 Equity in undistributed earnings of subsidiaries ​ 27,383 ​ 25,633 Net income ​ $ 24,332 ​ $ 26,548
Condensed Cash Flow Statement	STATEMENTS OF CASH FLOWS For the years ended December 31, 2020 and 2019 (Dollars in thousands) ​ ​ ​ ​ ​ ​ ​ ​ 2020 2019 Cash flows from operating activities: ​ ​ Net income ​ $ 24,332 ​ $ 26,548 Adjustments to reconcile net income to net cash (used in) provided by operating activities: ​ ​ Equity in undistributed income of subsidiary ​ (27,383) ​ (25,633) Other assets ​ (2,417) ​ (1,894) Other liabilities ​ 143 ​ 712 Net cash used in operating activities ​ (5,325) ​ (267) ​ ​ ​ ​ ​ ​ ​ Cash flows from investing activities: ​ ​ Net cash paid for business combinations ​ (6,713) ​ — Equity contribution from subsidiary ​ 13,900 ​ — Net cash used in investing activities ​ 7,187 ​ — ​ ​ ​ ​ ​ ​ ​ Cash flows from financing activities: ​ ​ Issuance of common stock ​ 339 ​ 438 Cash dividends paid ​ (2,986) ​ (700) Repurchase of common stock ​ ​ (4,308) ​ ​ — Net cash (used) provided by financing activities ​ (6,955) ​ (262) ​ ​ ​ ​ ​ ​ ​ Net change in cash and cash equivalents ​ (5,093) ​ (529) ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents, beginning of year ​ 13,155 ​ 13,684 ​ ​ ​ ​ ​ ​ ​ Cash and cash equivalents, end of period ​ $ 8,062 ​ $ 13,155

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2020USD ($)loan	Dec. 31, 2019USD ($)
Accounting Policies [Line Items]
Federal Reserve Bank, reserve requirement	$ 0	$ 49,200,000
Other real estate owned	4,619,000	1,757,000
Mortgage loans in process of foreclosure	26,000	215,000
Residential Real Estate [Member]
Accounting Policies [Line Items]
Other real estate owned	26,000	$ 215,000
Mortgage loans in process of foreclosure	$ 384,000
Mortgage loans in process of foreclosure number of loans	5	0
Minimum
Accounting Policies [Line Items]
Intangible asset, useful life	5 years
Maximum
Accounting Policies [Line Items]
Intangible asset, useful life	12 years

Business Combinations (Narrativ

Business Combinations (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	Mar. 01, 2020	Apr. 23, 2019	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Cash to be paid upon conversion (in dollars per share)	$ 474.82
Pro forma, revenue of acquiree since acquisition date, actual				$ 10,227
Pro forma information, earnings (loss) since acquisition date, actual				3,581
Pro forma revenue				119,334	$ 115,479
Pro forma net income (loss)				27,436	27,952
Goodwill			$ 74,135	74,135	65,614	$ 66,087
Merger-related costs				4,565	$ 3,219
Progressive Financial Group Inc. [Member]
Business Acquisition [Line Items]
Assets acquired	$ 301,041
Liabilities assumed	$ 272,052
Progressive Financial Group Inc. [Member]
Business Acquisition [Line Items]
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	301,000		298,645	298,645
Liabilities assumed	272,000		272,781	272,781
Goodwill	8,500		$ 8,521	8,521
Merger-related costs				$ 4,600
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	5 years
Progressive Financial Group Inc. [Member] | Trade Names [Member]
Business Acquisition [Line Items]
Intangible assets acquired	$ 63
Useful life	10 years
Entegra Financial Corp [Member]
Business Acquisition [Line Items]
Termination fee received		$ 6,400

Business Combinations (Allocati

Business Combinations (Allocation of Purchase Price of Progressive Financial Group, Inc.) (Details) - USD ($) $ in Thousands	Mar. 01, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Consideration transferred:
Goodwill		$ 74,135	$ 65,614	$ 66,087
Progressive Financial Group Inc. [Member]
Assets:
Cash and cash equivalents		55,971
Investment securities available-for-sale		27,257
Restricted investments		692
Loans		187,981
Premises and equipment		12,762
Bank owned life insurance		5,560
Deferred tax asset, net		891
Intangibles		2,497
Other real estate owned		2,171
Interest Receivable		781
Prepaids		201
Other assets		1,881
Total assets acquired	$ 301,000	298,645
Liabilities:
Deposits		271,276
Time deposit premium		729
Payables and other liabilities		776
Total liabilities assumed	272,000	272,781
Total fair value of net assets acquired		25,864
Cash consideration paid	$ 9,800	9,838
Common stock issued		24,547
Number of shares issued (in shares)	1,292,578
Business Combination, Consideration Transferred, Total		34,385
Assets:
Investment securities available-for-sale	$ 203
Loans	(3,691)
Allowance for loan losses	2,832
Premises and equipment, net	(2,919)
Deferred tax asset, net	813	78
Intangibles	1,370	1,127
Other real estate owned	(100)	(1,424)
Interest Receivable	(280)
Prepaids	(174)
Goodwill	(231)
Total assets acquired	(2,177)	(219)
Liabilities:
Time deposit premium	729
Total liabilities assumed	729
Consideration transferred:
Aggregate fair value adjustments	(2,906)	(219)
Goodwill	8,500	$ 8,521
Progressive Financial Group Inc. [Member]
Assets:
Cash and cash equivalents	55,971
Investment securities available-for-sale	27,054
Restricted investments	692
Loans	191,672
Allowance for loan losses	(2,832)
Premises and equipment	15,681
Bank owned life insurance	5,560
Other real estate owned	3,695
Interest Receivable	1,061
Prepaids	375
Goodwill	231
Other assets	1,881
Total assets acquired	301,041
Liabilities:
Deposits	271,276
Payables and other liabilities	776
Total liabilities assumed	272,052
Total fair value of net assets acquired	$ 28,989

Business Combinations (Alloca_2

Business Combinations (Allocation of Purchase Price of Foothills Bancorp) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Fair value of assets acquired and liabilities assumed:
Goodwill	$ 74,135	$ 65,614	$ 66,087

Business Combinations (Pro Form

Business Combinations (Pro Forma Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Business Combinations [Abstract]
Pro forma, revenue of acquiree since acquisition date, actual	$ 10,227
Pro forma revenue	119,334	$ 115,479
Pro forma information, earnings (loss) since acquisition date, actual	3,581
Pro forma net income (loss)	$ 27,436	$ 27,952

Business Combinations (Loans Ac

Business Combinations (Loans Acquired) (Details) - Progressive Financial Group Inc. [Member] - Purchased Credit Impaired Loans [Member] $ in Thousands	Mar. 01, 2020USD ($)
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

Earnings per Share (Narrative)

Earnings per Share (Narrative) (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Anti-dilutive securities excluded from computation of earnings per share (in shares)	73	0

Earnings per Share (Schedule of

Earnings per Share (Schedule of Earnings Per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Anti-dilutive securities excluded from computation of earnings per share (in shares)	73,000	0
Basic earnings per share computation:
Net income available to common stockholders	$ 24,332	$ 26,548
Average common shares outstanding - basic (in shares)	14,955,423	13,953,497
Basic earnings per share (in dollars per share)	$ 1.63	$ 1.90
Diluted earnings per share computation:
Net income available to common stockholders	$ 24,332	$ 26,548
Average common shares outstanding - basic (in shares)	14,955,423	13,953,497
Incremental shares from assumed conversions:
Stock options and restricted stock (in shares)	63,752	92,869
Average common shares outstanding - diluted (in shares)	15,019,175	14,046,366
Diluted earnings per share (in dollars per share)	$ 1.62	$ 1.89

Securities (Narrative) (Details

Securities (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Available-for-sale securities pledged as collateral	$ 80.2	$ 92.3

Securities (Schedule of Availab

Securities (Schedule of Available-for-sale Securities Reconciliation) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Total	$ 211,614	$ 177,819
Gross Unrealized Gains	4,221	1,063
Gross Unrealized Losses	(201)	(534)
Fair Value	215,634	178,348
US Government-sponsored Enterprises Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Total	30,526	19,015
Gross Unrealized Gains	10	41
Gross Unrealized Losses	(6)	(56)
Fair Value	30,530	19,000
Municipal securities [Member]
Debt Securities, Available-for-sale [Line Items]
Total	89,644	63,792
Gross Unrealized Gains	2,345	618
Gross Unrealized Losses		(19)
Fair Value	91,989	64,391
Other Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Total	25,019	3,481
Gross Unrealized Gains	112	22
Gross Unrealized Losses	(13)	(33)
Fair Value	25,118	3,470
Mortgage-backed securities (GSEs) [Member]
Debt Securities, Available-for-sale [Line Items]
Total	66,425	91,531
Gross Unrealized Gains	1,754	382
Gross Unrealized Losses	(182)	(426)
Fair Value	$ 67,997	$ 91,487

Securities (Proceeds from sale

Securities (Proceeds from sale of securities available for sale, gains losses and proceeds from redemption) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales of securities available-for-sale	$ 11,759	$ 16,515
Gross gains	7	35
Losses realized	(1)	(1)
Proceeds from maturities and calls	$ 49,633	$ 15,555

Securities (Investments Classif

Securities (Investments Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Amortized Cost
Due in one year or less	$ 4,907
Due from one year to five years	4,159
Due from five years to ten years	36,172
Due after ten years	99,951
Securities available for sale, amortized cost	145,189
Total	211,614	$ 177,819
Fair Value
Due in one year or less	4,949
Due from one year to five years	4,174
Due from five years to ten years	36,442
Due after ten years	102,072
Securities available for sale, fair value	147,637
Total	215,634	$ 178,348
Mortgage-backed securities [Member]
Amortized Cost
Mortgage-backed securities	66,425
Fair Value
Mortgage-backed securities	$ 67,997

Securities (Sales of Available-

Securities (Sales of Available-for-sale Securities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Gains realized	$ 7	$ 35
Losses realized	$ 1	$ 1

Securities (Schedule of Unreali

Securities (Schedule of Unrealized Loss on Investments) (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 26,795,000	$ 19,836,000
Less than 12 Months, Gross Unrealized Losses	$ (97,000)	$ (253,000)
Available-for-sale, less than 12 months, number of securities	10	16
Available-for-sale, fair value, 12 months or greater	$ 7,192,000	$ 27,449,000
12 Months or Greater, Gross Unrealized Losses	$ (104,000)	$ (281,000)
Available-for-sale, 12 months or greater, number of securities	5	35
Total, Fair Value	$ 33,987,000	$ 47,285,000
Total, Gross Unrealized Losses	$ (201,000)	$ (534,000)
Available-for-sale, total, number of securities	15	51
US Government-sponsored Enterprises Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 15,510,000	$ 2,972,000
Less than 12 Months, Gross Unrealized Losses	$ (5,000)	$ (43,000)
Available-for-sale, less than 12 months, number of securities	3	2
Available-for-sale, fair value, 12 months or greater	$ 132,000	$ 5,987,000
12 Months or Greater, Gross Unrealized Losses	$ (1,000)	$ (13,000)
Available-for-sale, 12 months or greater, number of securities	1	2
Total, Fair Value	$ 15,642,000	$ 8,959,000
Total, Gross Unrealized Losses	$ (6,000)	$ (56,000)
Available-for-sale, total, number of securities	4	4
Municipal securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value		$ 3,656,000
Less than 12 Months, Gross Unrealized Losses		$ (16,000)
Available-for-sale, less than 12 months, number of securities		4
Available-for-sale, fair value, 12 months or greater		$ 527,000
12 Months or Greater, Gross Unrealized Losses		$ (3,000)
Available-for-sale, 12 months or greater, number of securities		1
Total, Fair Value		$ 4,183,000
Total, Gross Unrealized Losses		$ (19,000)
Available-for-sale, total, number of securities		5
Other Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 1,495,000
Less than 12 Months, Gross Unrealized Losses	$ (5,000)
Available-for-sale, less than 12 months, number of securities	1
Available-for-sale, fair value, 12 months or greater	$ 977,000	$ 947,000
12 Months or Greater, Gross Unrealized Losses	$ (8,000)	$ (33,000)
Available-for-sale, 12 months or greater, number of securities	1	1
Total, Fair Value	$ 2,472,000	$ 947,000
Total, Gross Unrealized Losses	$ (13,000)	$ (33,000)
Available-for-sale, total, number of securities	2	1
Mortgage-backed securities (GSEs) [Member]
Debt Securities, Available-for-sale [Line Items]
Less than 12 Months, Fair Value	$ 9,790,000	$ 13,208,000
Less than 12 Months, Gross Unrealized Losses	$ (87,000)	$ (194,000)
Available-for-sale, less than 12 months, number of securities	6	10
Available-for-sale, fair value, 12 months or greater	$ 6,083,000	$ 19,988,000
12 Months or Greater, Gross Unrealized Losses	$ (95,000)	$ (232,000)
Available-for-sale, 12 months or greater, number of securities	3	31
Total, Fair Value	$ 15,873,000	$ 33,196,000
Total, Gross Unrealized Losses	$ (182,000)	$ (426,000)
Available-for-sale, total, number of securities	9	41

Securities (Other Investments)

Securities (Other Investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Other investments	$ 14,794	$ 12,913
Federal Reserve Bank Stock [Member]
Debt Securities, Available-for-sale [Line Items]
Other investments	8,606	7,917
Investment in Federal Home Loan Bank Stock [Member]
Debt Securities, Available-for-sale [Line Items]
Other investments	5,838	4,646
First National Bankers Bank Stock [Member]
Debt Securities, Available-for-sale [Line Items]
Other investments	$ 350	$ 350

Loans and Allowance for Loan _3

Loans and Allowance for Loan Losses - Loan Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 2,382,243	$ 1,897,392
Less: Allowance for loan losses	(18,346)	(10,243)	$ (8,275)
Loans, net	2,363,897	1,887,149
Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	32,064	26,987
Less: Allowance for loan losses	(309)	(156)
Loans, net	31,755	26,831
All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,350,179	1,870,405
Less: Allowance for loan losses	(18,037)	(10,087)
Loans, net	2,332,142	1,860,318
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,012,976	905,306
Less: Allowance for loan losses	(7,579)	(4,508)	(3,639)
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	16,123	15,255
Less: Allowance for loan losses	0	(17)
Commercial Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	996,853	890,051
Less: Allowance for loan losses	(7,579)	(4,491)
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	443,930	417,482
Less: Allowance for loan losses	(3,471)	(2,576)	(1,789)
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	10,258	6,541
Less: Allowance for loan losses	(88)	(74)
Consumer Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	433,672	410,941
Less: Allowance for loan losses	(3,383)	(2,502)
Construction and Land Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	278,075	227,626
Less: Allowance for loan losses	(2,076)	(1,127)	(795)
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	5,348	4,458
Less: Allowance for loan losses	0
Construction and Land Development [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	272,727	223,168
Less: Allowance for loan losses	(2,076)	(1,127)
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	634,446	337,075
Less: Allowance for loan losses	(5,107)	(1,957)	(1,746)
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	308	407
Less: Allowance for loan losses	(218)	(59)
Commercial and Industrial [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	634,138	336,668
Less: Allowance for loan losses	(4,889)	(1,898)
Consumer and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	12,816	9,903
Less: Allowance for loan losses	(113)	(75)	$ (306)
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	27	326
Less: Allowance for loan losses	(3)	(6)
Consumer and Other [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	12,789	9,577
Less: Allowance for loan losses	$ (110)	$ (69)

Loans and Allowance for Loan _4

Loans and Allowance for Loan Losses (Narrative) (Details)	12 Months Ended
	Dec. 31, 2020USD ($)loancontractsegmentproperty	Dec. 31, 2019USD ($)property
Financing Receivable, Modifications [Line Items]
Number of loan portfolio segments | segment	5
Nonaccrual restructured loans	$ 5,633,000	$ 2,743,000
Number of loans modified as troubled debt restructurings with subsequent default | contract	0
Allowance for loan losses	$ 18,300,000	10,200,000
Commitments to extend credit	476,841,000	384,411,000
Loans	$ 2,382,243,000	$ 1,897,392,000
Number of properties in other real estate owned | property	1	1
Provision charged to expense	$ 8,683,000	$ 2,599,000
Increase (decrease) provision for loan expensed	$ 6,100,000
Allowance for loan losses basis points	1.25%	1.00%
Finance receivable increase (decrease) in reserve	$ 8,300,000
Percentage of allowance for credit losses to aggregate loans	0.77%	0.54%
Mortgage loans in process of foreclosure	$ 26,000	$ 215,000
Financing Receivable Paycheck Protection Program Cares Act [Member]
Financing Receivable, Modifications [Line Items]
Number of loans related to payroll protection program | contract	2,863
Loans	$ 288,900,000
Loan origination fee income	11,000,000
Loan interest income	5,900,000
Financing Receivable Cares Act [Member]
Financing Receivable, Modifications [Line Items]
Loan modification, amount	$ 17,200,000
Aggregate loans outstanding percentage	0.70%
Related Party [Member]
Financing Receivable, Modifications [Line Items]
Commitments to extend credit	$ 6,200,000
Trouble Debt Restructuring [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring	257,000	61,000
Nonaccrual restructured loans	0	0
Purchased Credit Impaired Loans [Member]
Financing Receivable, Modifications [Line Items]
Allowance for loan losses	309,000	$ 156,000
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Mortgage loans in process of foreclosure	$ 384,000
Mortgage loans in process of foreclosure number of loans	5	0

Loans and Allowance for Loan _5

Loans and Allowance for Loan Losses - Performing and Impaired Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 2,382,243	$ 1,897,392
All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,350,179	1,870,405
Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	32,064	26,987
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,012,976	905,306
Commercial Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	996,853	890,051
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	16,123	15,255
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	443,930	417,482
Consumer Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	433,672	410,941
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	10,258	6,541
Construction and Land Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	278,075	227,626
Construction and Land Development [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	272,727	223,168
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	5,348	4,458
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	634,446	337,075
Commercial and Industrial [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	634,138	336,668
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	308	407
Consumer and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	12,816	9,903
Consumer and Other [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	12,789	9,577
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	27	326
Performing [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,344,846	1,867,895
Performing [Member] | Commercial Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	992,982	889,795
Performing [Member] | Consumer Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	432,356	409,394
Performing [Member] | Construction and Land Development [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	272,727	222,621
Performing [Member] | Commercial and Industrial [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	633,992	336,508
Performing [Member] | Consumer and Other [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	12,789	9,577
Impaired Loans [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	5,333	2,510
Impaired Loans [Member] | Commercial Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	3,871	256
Impaired Loans [Member] | Consumer Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,316	1,547
Impaired Loans [Member] | Construction and Land Development [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans		547
Impaired Loans [Member] | Commercial and Industrial [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	146	160
Impaired Loans [Member] | Consumer and Other [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 0	$ 0

Loans and Allowance for Loan _6

Loans and Allowance for Loan Losses - ALL by Loan Classification (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 18,346	$ 10,243	$ 8,275
All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	18,037	10,087
Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	309	156
Performing [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	17,800	9,612
Impaired Loans [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	237	475
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	7,579	4,508	3,639
Commercial Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	7,579	4,491
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	17
Commercial Real Estate [Member] | Performing [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	7,579	4,491
Commercial Real Estate [Member] | Impaired Loans [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	3,471	2,576	1,789
Consumer Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	3,383	2,502
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	88	74
Consumer Real Estate [Member] | Performing [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	3,267	2,159
Consumer Real Estate [Member] | Impaired Loans [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	116	343
Construction and Land Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	2,076	1,127	795
Construction and Land Development [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	2,076	1,127
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0
Construction and Land Development [Member] | Performing [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	2,076	1,127
Construction and Land Development [Member] | Impaired Loans [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	5,107	1,957	1,746
Commercial and Industrial [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	4,889	1,898
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	218	59
Commercial and Industrial [Member] | Performing [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	4,768	1,766
Commercial and Industrial [Member] | Impaired Loans [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	121	132
Consumer and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	113	75	$ 306
Consumer and Other [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	110	69
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	3	6
Consumer and Other [Member] | Performing [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	110	$ 69
Consumer and Other [Member] | Impaired Loans [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 0

Loans and Allowance for Loan _7

Loans and Allowance for Loan Losses - ALL Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 10,243	$ 8,275
Charged off loans	(841)	(1,043)
Recoveries of charge-offs	261	412
Provision charged to expense	8,683	2,599
Ending balance	18,346	10,243
Commercial Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,508	3,639
Charged off loans		(36)
Recoveries of charge-offs	19	65
Provision charged to expense	3,052	840
Ending balance	7,579	4,508
Consumer Real Estate [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	2,576	1,789
Charged off loans	(23)	(4)
Recoveries of charge-offs	39	164
Provision charged to expense	879	627
Ending balance	3,471	2,576
Construction and Land Development [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,127	795
Recoveries of charge-offs	2	8
Provision charged to expense	947	324
Ending balance	2,076	1,127
Commercial and Industrial [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,957	1,746
Charged off loans	(420)	(659)
Recoveries of charge-offs	114	77
Provision charged to expense	3,456	793
Ending balance	5,107	1,957
Consumer and Other [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	75	306
Charged off loans	(398)	(344)
Recoveries of charge-offs	87	98
Provision charged to expense	349	15
Ending balance	$ 113	$ 75

Loans and Allowance for Loan _8

Loans and Allowance for Loan Losses - Loan Risk Rating (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 2,382,243	$ 1,897,392
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,012,976	905,306
Consumer Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	443,930	417,482
Construction and Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	278,075	227,626
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	634,446	337,075
Consumer and Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	12,816	9,903
All Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,350,179	1,870,405
All Other Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,247,263	1,822,268
All Other Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	91,611	39,084
All Other Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,812	5,828
All Other Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,359	2,979
All Other Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	134	246
All Other Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	996,853	890,051
All Other Loans [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	922,153	860,447
All Other Loans [Member] | Commercial Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	66,287	25,180
All Other Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,446	4,057
All Other Loans [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,967	367
All Other Loans [Member] | Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
All Other Loans [Member] | Consumer Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	433,672	410,941
All Other Loans [Member] | Consumer Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	417,302	407,336
All Other Loans [Member] | Consumer Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	14,218	989
All Other Loans [Member] | Consumer Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	46	738
All Other Loans [Member] | Consumer Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,020	1,713
All Other Loans [Member] | Consumer Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	86	165
All Other Loans [Member] | Construction and Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	272,727	223,168
All Other Loans [Member] | Construction and Land Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	269,350	216,459
All Other Loans [Member] | Construction and Land Development [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,296	6,089
All Other Loans [Member] | Construction and Land Development [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
All Other Loans [Member] | Construction and Land Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	81	620
All Other Loans [Member] | Construction and Land Development [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
All Other Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	634,138	336,668
All Other Loans [Member] | Commercial and Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	625,836	328,564
All Other Loans [Member] | Commercial and Industrial [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	7,673	6,786
All Other Loans [Member] | Commercial and Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	320	1,033
All Other Loans [Member] | Commercial and Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	261	228
All Other Loans [Member] | Commercial and Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	48	57
All Other Loans [Member] | Consumer and Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	12,789	9,577
All Other Loans [Member] | Consumer and Other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	12,622	9,462
All Other Loans [Member] | Consumer and Other [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	137	40
All Other Loans [Member] | Consumer and Other [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
All Other Loans [Member] | Consumer and Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	30	51
All Other Loans [Member] | Consumer and Other [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	24
Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	32,064	26,987
Purchased Credit Impaired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	20,749	18,974
Purchased Credit Impaired Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	7,427	5,841
Purchased Credit Impaired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	76	199
Purchased Credit Impaired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,812	1,973
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	16,123	15,255
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,072	12,473
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,381	2,234
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	19	139
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,651	409
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	10,258	6,541
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,382	5,258
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	224	38
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	57	60
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,595	1,185
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,348	4,458
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,008	902
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,820	3,556
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	520	0
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	308	407
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	262	41
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	46	366
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		0
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	27	326
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	25	300
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2	13
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	13
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 0	$ 0

Loans and Allowance for Loan _9

Loans and Allowance for Loan Losses - Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans	$ 5,633	$ 2,743
Total Past Due	8,235	6,651
Current Loans	2,341,944	1,863,754
Total loans	2,382,243	1,897,392
Financial Asset, 30 to 60 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	2,321	3,182
Financial Asset, 61 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	132	119
Financial Asset, Past 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	149	607
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans	3,740	124
Total Past Due	3,941	612
Current Loans	992,912	889,439
Total loans	1,012,976	905,306
Commercial Real Estate [Member] | Financial Asset, 30 to 60 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	134	466
Commercial Real Estate [Member] | Financial Asset, 61 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	22
Commercial Real Estate [Member] | Financial Asset, Past 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	67	0
Consumer Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans	1,823	1,872
Total Past Due	3,872	3,466
Current Loans	429,800	407,475
Total loans	443,930	417,482
Consumer Real Estate [Member] | Financial Asset, 30 to 60 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	1,916	1,564
Consumer Real Estate [Member] | Financial Asset, 61 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	51	30
Consumer Real Estate [Member] | Financial Asset, Past 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	82	0
Construction and Land Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans	12	620
Total Past Due	257	1,734
Current Loans	272,470	221,434
Total loans	278,075	227,626
Construction and Land Development [Member] | Financial Asset, 30 to 60 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	245	507
Construction and Land Development [Member] | Financial Asset, 61 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Construction and Land Development [Member] | Financial Asset, Past 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	607
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans	36	57
Total Past Due	124	669
Current Loans	634,014	335,999
Total loans	634,446	337,075
Commercial and Industrial [Member] | Financial Asset, 30 to 60 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	12	559
Commercial and Industrial [Member] | Financial Asset, 61 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	76	53
Commercial and Industrial [Member] | Financial Asset, Past 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Consumer and Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual restructured loans	22	70
Total Past Due	41	170
Current Loans	12,748	9,407
Total loans	12,816	9,903
Consumer and Other [Member] | Financial Asset, 30 to 60 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	14	86
Consumer and Other [Member] | Financial Asset, 61 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	5	14
Consumer and Other [Member] | Financial Asset, Past 90 Days
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due and accruing	0	0
Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	32,064	26,987
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	16,123	15,255
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	10,258	6,541
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	5,348	4,458
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	308	407
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans	$ 27	$ 326

Loans and Allowance for Loan_10

Loans and Allowance for Loan Losses - Impaired Loan Portfolio (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Related Allowance	$ 546	$ 631
Total impaired loans, Recorded Investment	7,451	4,173
Total impaired loans, Unpaid Principal Balance	7,674	4,570
Total impaired loans, Average Recorded Investment	5,118	5,172
Total impaired loans, Interest Income Recognized	204	113
All Other Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	4,759	1,356
Impaired loans without a valuation allowance, Unpaid Principal Balance	4,760	1,361
Impaired loans with a valuation allowance, Recorded Investment	574	1,154
Impaired loans with a valuation allowance, Unpaid Principal Balance	574	1,154
Impaired loans with a valuation allowance, Related Allowance	237	475
Impaired loans without a valuation allowance, Average Recorded Investment	2,005	1,774
Impaired loans without a valuation allowance, Interest Income Recognized	45	52
Impaired loans with a valuation allowance, Average Recorded Investment	1,058	870
Impaired loans with a valuation allowance, Interest Income Recognized	34	34
All Other Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	3,871	256
Impaired loans without a valuation allowance, Unpaid Principal Balance	3,872	261
Impaired loans with a valuation allowance, Recorded Investment	0	0
Impaired loans with a valuation allowance, Unpaid Principal Balance	0	0
Impaired loans with a valuation allowance, Related Allowance	0	0
Impaired loans without a valuation allowance, Average Recorded Investment	1,073	399
Impaired loans without a valuation allowance, Interest Income Recognized	12	30
Impaired loans with a valuation allowance, Average Recorded Investment	158	9
Impaired loans with a valuation allowance, Interest Income Recognized	2	1
All Other Loans [Member] | Consumer Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	888	553
Impaired loans without a valuation allowance, Unpaid Principal Balance	888	553
Impaired loans with a valuation allowance, Recorded Investment	428	994
Impaired loans with a valuation allowance, Unpaid Principal Balance	428	994
Impaired loans with a valuation allowance, Related Allowance	116	343
Impaired loans without a valuation allowance, Average Recorded Investment	701	725
Impaired loans without a valuation allowance, Interest Income Recognized	33	15
Impaired loans with a valuation allowance, Average Recorded Investment	656	397
Impaired loans with a valuation allowance, Interest Income Recognized	24	17
All Other Loans [Member] | Construction and Land Development [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	0	547
Impaired loans without a valuation allowance, Unpaid Principal Balance	0	547
Impaired loans with a valuation allowance, Recorded Investment	0	0
Impaired loans with a valuation allowance, Unpaid Principal Balance	0	0
Impaired loans with a valuation allowance, Related Allowance	0	0
Impaired loans without a valuation allowance, Average Recorded Investment	231	619
Impaired loans without a valuation allowance, Interest Income Recognized		5
Impaired loans with a valuation allowance, Average Recorded Investment		11
All Other Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	0	0
Impaired loans without a valuation allowance, Unpaid Principal Balance	0	0
Impaired loans with a valuation allowance, Recorded Investment	146	160
Impaired loans with a valuation allowance, Unpaid Principal Balance	146	160
Impaired loans with a valuation allowance, Related Allowance	121	132
Impaired loans without a valuation allowance, Average Recorded Investment		20
Impaired loans without a valuation allowance, Interest Income Recognized		1
Impaired loans with a valuation allowance, Average Recorded Investment	244	430
Impaired loans with a valuation allowance, Interest Income Recognized	8	16
All Other Loans [Member] | Consumer and Other [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans without a valuation allowance, Recorded Investment	0	0
Impaired loans without a valuation allowance, Unpaid Principal Balance	0	0
Impaired loans with a valuation allowance, Recorded Investment	0	0
Impaired loans with a valuation allowance, Unpaid Principal Balance	0	0
Impaired loans with a valuation allowance, Related Allowance	0	0
Impaired loans without a valuation allowance, Average Recorded Investment		11
Impaired loans without a valuation allowance, Interest Income Recognized		1
Impaired loans with a valuation allowance, Average Recorded Investment		23
Purchased Credit Impaired Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	2,118	1,663
Impaired loans with a valuation allowance, Unpaid Principal Balance	2,340	2,055
Impaired loans with a valuation allowance, Related Allowance	309	156
Impaired loans with a valuation allowance, Average Recorded Investment	2,055	2,528
Impaired loans with a valuation allowance, Interest Income Recognized	125	27
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	0	17
Impaired loans with a valuation allowance, Unpaid Principal Balance	0	99
Impaired loans with a valuation allowance, Related Allowance	0	17
Impaired loans with a valuation allowance, Average Recorded Investment	200	1,518
Impaired loans with a valuation allowance, Interest Income Recognized	1
Impaired loans with a valuation allowance, Interest Income (Expense) Recognized		(25)
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	1,827	1,205
Impaired loans with a valuation allowance, Unpaid Principal Balance	2,086	1,371
Impaired loans with a valuation allowance, Related Allowance	88	74
Impaired loans with a valuation allowance, Average Recorded Investment	1,461	922
Impaired loans with a valuation allowance, Interest Income Recognized	117	42
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	0	0
Impaired loans with a valuation allowance, Unpaid Principal Balance	0	0
Impaired loans with a valuation allowance, Related Allowance	0	0
Impaired loans with a valuation allowance, Average Recorded Investment	46
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	270	396
Impaired loans with a valuation allowance, Unpaid Principal Balance	234	534
Impaired loans with a valuation allowance, Related Allowance	218	59
Impaired loans with a valuation allowance, Average Recorded Investment	321	79
Impaired loans with a valuation allowance, Interest Income Recognized	7	9
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with a valuation allowance, Recorded Investment	21	45
Impaired loans with a valuation allowance, Unpaid Principal Balance	20	51
Impaired loans with a valuation allowance, Related Allowance	3	6
Impaired loans with a valuation allowance, Average Recorded Investment	$ 27	9
Impaired loans with a valuation allowance, Interest Income Recognized		$ 1

Loans and Allowance for Loan_11

Loans and Allowance for Loan Losses (Troubled Debt Restructurings) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)contract
Consumer Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	1
Pre-Modification Outstanding Recorded Investment	$ 108
Post-Modification Outstanding Recorded Investment	$ 108
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	3
Pre-Modification Outstanding Recorded Investment	$ 141
Post-Modification Outstanding Recorded Investment	$ 141
Consumer and Other [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	1
Pre-Modification Outstanding Recorded Investment	$ 8
Post-Modification Outstanding Recorded Investment	$ 8

Loans and Allowance for Loan_12

Loans and Allowance for Loan Losses - Purchased Credit Impaired Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Less: Allowance for loan losses	$ (18,300)	$ (10,200)
Purchased Credit Impaired Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	44,973	38,419
Less remaining purchase discount	(12,909)	(11,432)
Total loans, net of purchase discount	32,064	26,987
Less: Allowance for loan losses	(309)	(156)
Carrying amount, net of allowance	31,755	26,831
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	23,787	21,570
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	12,692	8,411
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	1,812	5,394
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	6,521	2,540
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member]
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Total loans	$ 161	$ 504

Loans and Allowance for Loan_13

Loans and Allowance for Loan Losses - Accretable Yield Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable yield, beginning of period	$ 8,454	$ 7,052
Additions	2,515
Accretion income	(5,347)	(4,627)
Reclassification from nonaccretable	2,792	3,555
Other changes, net	8,475	2,474
Accretable yield, end of period	$ 16,889	$ 8,454

Loans and Allowance for Loan_14

Loans and Allowance for Loan Losses (Related Party Loans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable, Related Parties [Roll Forward]
Balance, beginning of year	$ 24,091	$ 31,246
Disbursements	7,108	16,297
Repayments	(16,740)	(23,452)
Balance, end of year	$ 14,459	$ 24,091

Premises and Equipment (Summary

Premises and Equipment (Summary of Premises and Equipment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Land and land improvements	$ 16,724	$ 14,712
Building and leasehold improvements	53,701	38,640
Furniture, fixtures and equipment	18,095	13,744
Construction in progress	964	5,523
Total, gross	89,484	72,619
Accumulated depreciation	(16,802)	(13,186)
Total, net	$ 72,682	$ 59,433
Minimum | Building and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Useful life	15 years
Minimum | Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life	3 years
Maximum | Building and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Useful life	40 years
Maximum | Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful life	7 years

Premises and Equipment (Narrati

Premises and Equipment (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Estimated costs to complete construction in progress	$ 150
Depreciation and amortization expense	$ 3,700	$ 2,800

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill, impairment loss	$ 0
Amortization of intangibles	1,740,000	$ 1,368,000
Goodwill	$ 74,135,000	$ 65,614,000	$ 66,087,000
Customer Relationships [Member]
Intangible asset, useful life	10 years
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	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Goodwill, Beginning Balance		$ 65,614	$ 66,087
Goodwill, Ending Balance		74,135	65,614
Foothills Bancorp, Inc. [Member]
Goodwill [Roll Forward]
Adjustment to values initially recorded for acquisitions			$ (473)
Progressive Financial Group Inc. [Member]
Goodwill [Roll Forward]
Adjustment to values initially recorded for acquisitions	$ (231)
Acquisition of PFG		8,521
Goodwill, Ending Balance	$ 8,500	$ 8,521

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	$ 14,550
Acquisition of PFG	2,497
Balance, gross core deposit intangible	17,047
Finite Lived Intangible Assets Accumulated Amortization [Abstract]
Gross Carrying Amount	17,047	$ 17,047	$ 14,550	$ 14,550
Less: accumulated amortization		(4,711)	(2,971)
Total		12,336	11,579
Core Deposits [Member]
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	14,550
Acquisition of PFG	1,370
Balance, gross core deposit intangible	15,920
Finite Lived Intangible Assets Accumulated Amortization [Abstract]
Gross Carrying Amount	15,920	15,920	14,550	$ 14,550
Less: accumulated amortization		(4,540)	(2,971)
Total		11,380	$ 11,579
Customer Relationships [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of PFG	1,064
Balance, gross core deposit intangible	1,064
Finite Lived Intangible Assets Accumulated Amortization [Abstract]
Gross Carrying Amount	1,064	1,064
Less: accumulated amortization		(161)
Total		903
Trade Names [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of PFG	63
Balance, gross core deposit intangible	63
Finite Lived Intangible Assets Accumulated Amortization [Abstract]
Gross Carrying Amount	$ 63	63
Less: accumulated amortization		(10)
Total		$ 53

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
2021	$ 1,760
2022	1,697
2023	1,636
2024	1,588
2025	1,531
Thereafter	4,124
Total	$ 12,336	$ 11,579

Deposits (Narrative) (Details)

Deposits (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Time Deposits Maturity [Line Items]
Time deposits of 250,000 or more	$ 138,100	$ 136,500
Fair value adjustments to time deposits	336	206
Deposit liabilities reclassified as loans receivable	285	254
Related Party [Member]
Time Deposits Maturity [Line Items]
Related party deposit liabilities	$ 21,600	$ 16,800

Deposits (Scheduled Maturities)

Deposits (Scheduled Maturities) (Details) $ in Thousands	Dec. 31, 2020USD ($)
Deposits [Abstract]
2021	$ 389,097
2022	82,271
2023	44,957
2024	22,444
2025	10,906
Thereafter	487
Total	$ 550,162

Borrowings and Line of Credit_2

Borrowings and Line of Credit (Narrative) (Details) - USD ($)	May 01, 2018	Dec. 31, 2020	Dec. 31, 2019
Securities sold under agreements to repurchase		$ 5,800,000	$ 6,200,000
Carrying value of securities pledged as collateral		7,600,000	12,900,000
Carrying value of securities pledged to Federal Home Loan Bank		0	0
Federal funds purchased		0	0
Loans Payable [Member]
Principal amount	$ 500,000
Interest rate	4.75%
Loan term	10 years
Other borrowings		$ 396,000	$ 439,000
Maximum
Securities sold under agreements to repurchase, maturity period		4 days
Minimum
Securities sold under agreements to repurchase, maturity period		1 day
Revolving Credit Facility [Member]
Line of credit facility, maximum borrowing capacity		$ 25,000,000
Outstanding borrowings		$ 0

Borrowings and Line of Credit_3

Borrowings and Line of Credit (Borrowing capacity and loans secured for advances) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Federal Reserve Bank
Debt Instrument [Line Items]
Maximum funding capacity	$ 149,219	$ 6,994
Additional funding capacity	149,219	6,994
Loans secured for borrowings	258,774	9,562
Federal Home Loan Bank Advances
Debt Instrument [Line Items]
Maximum funding capacity	194,445	156,059
FHLB advances	(75,000)	(25,000)
Secured lines of credit	(83,982)	(83,982)
Additional funding capacity	35,463	47,077
Loans secured for borrowings	$ 281,670	$ 554,371

Borrowings and Line of Credit_4

Borrowings and Line of Credit (Schedule of Federal Home Loan Bank, Advances) (Details) - Federal Home Loan Bank Advances - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term federal home loan bank advances	$ 75,000	$ 25,000
Federal Home Loan Bank Advance Due 2029
Debt Instrument [Line Items]
Federal Home Loan Bank, advances, interest rate (as a percent)	0.93%	0.93%
Long-term federal home loan bank advances	$ 25,000	$ 25,000
Federal Home Loan Bank Advance Due 2030
Debt Instrument [Line Items]
Federal Home Loan Bank, advances, interest rate (as a percent)	0.46%	0.46%
Long-term federal home loan bank advances	$ 50,000

Borrowings and Line of Credit -

Borrowings and Line of Credit - Debt Maturities (Details) $ in Thousands	Dec. 31, 2020USD ($)
Borrowings and Line of Credit [Abstract]
2021	$ 45
2022	47
2023	50
2024	52
2025	54
Thereafter	75,148
Total	$ 75,396

Subordinated debt (Details)

Subordinated debt (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Sep. 28, 2018
Debt Instrument [Line Items]
Debt issuance costs	$ 654,000	$ 739,000
Subordinated Debt [Member]
Debt Instrument [Line Items]
Principal amount			$ 40,000,000
Interest rate			5.625%
Debt issuance costs			$ 842,000
Amortization expense of debt issuance costs	$ 84,000	$ 84,000
Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.55%

Leases - Lease Assets and Liabi

Leases - Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 4,797	$ 5,470
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets
Operating lease liabilities	$ 4,827	$ 5,479
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities

Leases (Narrative) (Details)

Leases (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)contract	Dec. 31, 2019USD ($)
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term	11 years 3 months 10 days
Weighted average discount rate	2.72%
Lease expense	$ 1,200	$ 875
Immediate Family Member of Board of Director [Member]
Lessee, Lease, Description [Line Items]
Number of leasing arrangements | contract	2
Lease expense	$ 150	$ 89

Leases - Lease Costs and Other

Leases - Lease Costs and Other Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Lease costs:
Operating lease costs	$ 1,044	$ 703
Short-term lease costs		12
Variable lease costs	111	95
Total	1,155	810
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 1,265	$ 693

Leases - Future Minimum Payment

Leases - Future Minimum Payments (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
2021	$ 804
2022	623
2023	485
2024	366
2025	348
Thereafter	3,032
Total future minimum lease payments	5,658
Amounts representing interest	(831)
Present value of net future minimum lease payments	$ 4,827	$ 5,479

Income Taxes (Components of Inc

Income Taxes (Components of Income Tax) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Current tax expense
Federal	$ 6,330	$ 5,143
State	1,447	974
Deferred tax expense related to:
Federal	(991)	678
State	(228)	102
Total income tax expense	$ 6,558	$ 6,897

Income Taxes (Effective Income

Income Taxes (Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Federal income tax expense computed at the statutory rate	$ 6,487	$ 7,024
State income taxes, net of federal tax benefit	923	872
Nondeductible acquisition expenses	109	0
Tax-exempt interest	(555)	(469)
Tax benefit from stock options	(14)	(24)
Other	(392)	(506)
Total income tax expense	$ 6,558	$ 6,897

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Federal income tax rate	21.00%

Income Taxes (Deferred Tax Asse

Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Allowance for loan losses	$ 4,744	$ 2,688
Fair value adjustments	3,854	4,098
Unrealized losses on securities	0
Unrealized losses on hedges or derivative securities	278	79
Other real estate owned	523	25
Deferred compensation	1,103	976
Lease liability	1,248	1,438
Federal net operating loss carryforward	0	221
Other	82	442
Total deferred tax assets	11,832	9,967
Deferred tax liabilities:
Accumulated depreciation	1,374	1,610
Core deposit intangible	3,112	2,971
Right of use asset	1,240	1,435
Unrealized gains on available-for-sale securities	1,051	139
Other	663	332
Total deferred tax liabilities	7,440	6,487
Net deferred tax asset	$ 4,392	$ 3,480

Employee Benefit Plans (Narrati

Employee Benefit Plans (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)planshares	Dec. 31, 2019USD ($)shares
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, cost recognized	$ 1,100	$ 818
Number of stock option plans | plan	1
Share-based compensation expense	$ 121
Deferred tax benefit from stock options exercised	18	$ 61
Unrecognized compensation cost	$ 0
Shares vested (in shares) | shares	0	0
Stock Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Options, exercises in period, intrinsic value	$ 190	$ 372
Options, outstanding, intrinsic value	792
Options, exercisable, intrinsic value	792
Proceeds from options exercised	339
Stock Appreciation Rights (SARs) [Member]
Defined Benefit Plan Disclosure [Line Items]
Share-based compensation expense	$ 51	$ 134
Granted (in shares) | shares	18,000	21,000
Restricted Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Share-based compensation expense	$ 482	$ 396
Unrecognized compensation cost	$ 1,000
Unrecognized compensation costs, period for recognition	2 years 10 months 6 days
Grant-date fair value	$ 134
Vested (in shares) | shares	7,295
2015 Stock Incentive Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Rights issued (in shares) | shares	26,601
Rights available for grant (in shares) | shares	1,876,894
Cornerstone Bancshares, Inc. Long-Term Incentive Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Rights issued (in shares) | shares	30,500
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] - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Number
Outstanding (in shares)	136,658	170,625
Exercised (in shares)	(33,556)	(31,931)
Forfeited (in shares)	(3,485)	(2,036)
Outstanding (in shares)	99,617	136,658
Weighted Average Exercisable Price
Weighted Average Exercisable Price, Outstanding (in dollars per share)	$ 10.29	$ 10.61
Weighted Average Exercisable Price Exercised (in dollars per share)	10.12	11.85
Weighted Average Exercisable Price Forfeited (in dollars per share)	15.05	12.20
Weighted Average Exercise Price, Outstanding (in dollars per share)	$ 10.19	$ 10.29

Employee Benefit Plans (Options

Employee Benefit Plans (Options Outstanding by Exercise Price Range) (Details) - Officer and Employee Plans [Member] - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 10.19	$ 10.29	$ 10.61
Number Outstanding (in shares)	99,617	136,658	170,625
Options Outstanding, Weighted Average Remaining Life	2 years 6 months 25 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 10.19
Exercisable (in shares)	99,617
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	1 year 2 months 8 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
6.80 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 6.80
Number Outstanding (in shares)	11,250
Options Outstanding, Weighted Average Remaining Life	1 month 28 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 6.80
Exercisable (in shares)	11,250
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 6.80
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)	18,500
Options Outstanding, Weighted Average Remaining Life	2 years 2 months 8 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 9.48
Exercisable (in shares)	18,500
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)	21,750
Options Outstanding, Weighted Average Remaining Life	2 years 11 months 26 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 9.60
Exercisable (in shares)	21,750
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	1 year 6 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)	26,601
Options Outstanding, Weighted Average Remaining Life	4 years 6 months 25 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 15.05
Exercisable (in shares)	26,601
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 15.05

Employee Benefit Plans - Stoc_2

Employee Benefit Plans - Stock Appreciation Right Activity (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Number
Outstanding (in shares)	67,000	50,000
Stock awards (in shares)	18,000	21,000
Forfeited (in shares)	(12,000)	(4,000)
Outstanding (in shares)	73,000	67,000
Weighted Average Exercisable Price
Weighted Average Exercisable Price, Outstanding (in dollars per share)	$ 20.54	$ 21.64
Granted (in dollars per share)	15.19	18.12
Weighted Average Exercisable Price Forfeited (in dollars per share)	21.72	21.67
Weighted Average Exercise Price, Outstanding (in dollars per share)	$ 19.02	$ 20.54

Employee Benefit Plans - SARs O

Employee Benefit Plans - SARs Outstanding by Exercise Price Range (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Prices (in dollars per share)	$ 19.02	$ 20.54	$ 21.64
Number Outstanding (in shares)	73,000	67,000	50,000
SARs Outstanding, Weighted Average Remaining Life	1 year 9 months 11 days
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 19.02
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)	18,000
SARs Outstanding, Weighted Average Remaining Life	3 years
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)	21,000
SARs Outstanding, Weighted Average Remaining Life	2 years
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 18.12
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)	34,000
SARs Outstanding, Weighted Average Remaining Life	1 year
SARs Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 21.61

Employee Benefit Plans (Schedul

Employee Benefit Plans (Schedule of Non-vested Restricted Stock) (Details) - Restricted Stock [Member]	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Number
Nonvested, beginning of period (in shares) | shares	65,400
Granted (in shares) | shares	43,613
Vested (in shares) | shares	(7,295)
Forfeited/expired (in shares) | shares	(1,500)
Nonvested, end of period (in shares) | shares	100,218
Weighted Average Grant-Date Fair Value
Nonvested, beginning balance (in dollars per share) | $ / shares	$ 21.04
Granted (in dollars per share) | $ / shares	15.95
Vested (in dollars per share) | $ / shares	18.32
Forfeited/expired (in dollars per share) | $ / shares	18.12
Nonvested, ending balance (in dollars per share) | $ / shares	$ 19.07

Commitments and Contingencies_2

Commitments and Contingencies (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments to extend credit	$ 476,841	$ 384,411
Standby letters of credit	$ 5,261	$ 11,727

Regulatory Matters (Narrative)

Regulatory Matters (Narrative) (Details) - USD ($)	12 Months Ended		15 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020
Common stock dividends (in dollars per share)			$ 0.05
Smart Bank [Member]
Dividends	$ 13,900,000	$ 0

Regulatory Matters (Regulatory

Regulatory Matters (Regulatory Capital Levels) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
SmartFinancial, Inc. [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital (to Risk-Weighted Assets), Actual Amount	$ 329,431	$ 287,937
Tier 1 Capital (to Risk-Weighted Assets), Actual Amount	271,739	238,433
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Amount	271,739	238,433
Tier 1 Capital (to Average Assets), Actual Amount	$ 271,739	$ 238,433
Total Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	14.07%	14.02%
Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	11.61%	11.61%
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	11.61%	11.61%
Tier 1 Capital (to Average Assets), Actual Ratio (as a percent)	8.70%	10.34%
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	$ 187,303	$ 164,313
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	140,477	123,235
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	105,358	92,426
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Amount	$ 125,002	$ 92,258
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent)	8.00%	8.00%
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent)	6.00%	6.00%
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)	4.00%	4.00%
Smart Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital (to Risk-Weighted Assets), Actual Amount	$ 317,660	$ 273,432
Tier 1 Capital (to Risk-Weighted Assets), Actual Amount	299,314	263,189
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Amount	299,314	263,189
Tier 1 Capital (to Average Assets), Actual Amount	$ 299,314	$ 263,189
Total Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	13.57%	13.31%
Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	12.78%	12.81%
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Actual Ratio (as a percent)	12.78%	12.81%
Tier 1 Capital (to Average Assets), Actual Ratio (as a percent)	9.58%	11.41%
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	$ 187,294	$ 164,305
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	140,470	123,229
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Amount	105,353	92,422
Tier 1 Capital (to Average Assets), Minimum for capital adequacy purposes Amount	$ 124,969	$ 92,254
Total Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent)	8.00%	8.00%
Tier 1 Capital (to Risk-Weighted Assets), Minimum for capital adequacy purposes Ratio (as a percent)	6.00%	6.00%
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)	4.00%	4.00%
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount	$ 234,117	$ 205,382
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount	187,294	164,305
Common Equity Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Amount	152,176	133,498
Tier 1 Capital (to Average Assets), Minimum to be well capitalized under prompt corrective action provisions Amount	$ 156,212	$ 115,317
Total Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio (as a percent)	10.00%	10.00%
Tier 1 Capital (to Risk-Weighted Assets), Minimum to be well capitalized under prompt corrective action provisions Ratio (as a percent)	8.00%	8.00%
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)	5.00%	5.00%

Concentrations of Credit Risk (

Concentrations of Credit Risk (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Concentration Risk [Line Items]
Credit extending terms to borrowers	The Bank, as a matter of policy, does not generally extend credit to any single borrower or group of related borrowers in excess of 25% of statutory capital, or approximately
Percentage of statutory capital	25.00%
Credit extending terms, maximum amount of statutory capital	$ 95.6
Commercial Real Estate [Member]
Concentration Risk [Line Items]
Concentration risk (as a percent)	51.00%	56.00%
Loan Portfolio Secured by Real Estate [Member]
Concentration Risk [Line Items]
Concentration risk (as a percent)	72.00%

Fair Value Disclosures - Assets

Fair Value Disclosures - Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	$ 215,634	$ 178,348
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	215,634	178,348
Derivative financial instruments	6,174	3,446
US Government-sponsored Enterprises Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	30,530	19,000
Municipal securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	91,989	64,391
Other Debt Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	25,118	3,470
Mortgage-backed securities (GSEs) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	67,997	91,487
Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	215,634	178,348
Derivative financial instruments	6,174	3,446
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	0	0
Derivative financial instruments	0	0
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	215,634	178,348
Derivative financial instruments	6,174	3,446
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	0	0
Derivative financial instruments	0	0
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	30,530	19,000
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	0	0
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	30,530	19,000
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	0	0
Fair Value, Recurring [Member] | Municipal securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	91,989	64,391
Fair Value, Recurring [Member] | Municipal securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	0	0
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	91,989	64,391
Fair Value, Recurring [Member] | Municipal securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	0	0
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	25,118	3,470
Fair Value, Recurring [Member] | Other Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	0	0
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	25,118	3,470
Fair Value, Recurring [Member] | Other Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	0	0
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	67,997	91,487
Fair Value, Recurring [Member] | Mortgage-backed securities (GSEs) [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	0	0
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	67,997	91,487
Fair Value, Recurring [Member] | Mortgage-backed securities (GSEs) [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available-for-sale, at fair value	$ 0	$ 0

Fair Value of Assets and Liab_3

Fair Value of Assets and Liabilities (Assets and Liabilities Measured on Nonrecurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans	$ 2,455	$ 2,185
OREO	4,619	1,757
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans	0	0
OREO	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans	0	0
OREO	0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired loans	2,455	2,185
OREO	$ 4,619	$ 1,757

Fair Value Disclosures Fair Val

Fair Value Disclosures Fair Value Disclosures - Unobservable Inputs (Details) $ in Thousands	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	$ 2,455	$ 2,185
OREO	4,619	1,757
Fair Value, Inputs, Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans	2,455	2,185
OREO	4,619	1,757
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]
Impaired loans	2,455	2,185
OREO	$ 4,619	$ 1,757
Appraisal And Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Fair Value, Nonrecurring [Member] | Weighted Average [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, measurement input	9	22
OREO, measurement input	22	29

Fair Value Disclosures - Carryi

Fair Value Disclosures - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Assets:
Securities available-for-sale, at fair value	$ 215,634	$ 178,348
Liabilities:
Noninterest-bearing demand deposits	685,957	364,155
Interest-bearing demand deposits	649,129	380,234
Time deposits	550,498	679,541
Carrying Amount [Member]
Assets:
Cash and cash equivalents	481,719	183,971
Securities available-for-sale, at fair value	215,634	178,348
Other investments	14,794	12,913
Loans, net and loans held for sale	2,375,618	1,893,005
Liabilities:
Noninterest-bearing demand deposits	685,957	364,155
Interest-bearing demand deposits	649,129	380,234
Money market and savings deposits	919,631	623,284
Time deposits	550,498	679,541
Borrowings	81,199	31,623
Subordinated debt	39,346	39,261
Derivative financial instruments	6,174	3,446
Estimated Fair Value [Member]
Assets:
Cash and cash equivalents	481,719	183,971
Securities available-for-sale, at fair value	215,634	178,348
Loans, net and loans held for sale	2,377,581	1,879,825
Liabilities:
Noninterest-bearing demand deposits	685,957	364,155
Interest-bearing demand deposits	649,129	380,234
Money market and savings deposits	919,631	623,284
Time deposits	554,120	681,902
Borrowings	82,892	31,029
Subordinated debt	40,550	35,868
Derivative financial instruments	6,174	3,446
Fair Value, Inputs, Level 1 [Member]
Assets:
Cash and cash equivalents	481,719	183,971
Fair Value, Inputs, Level 2 [Member]
Assets:
Securities available-for-sale, at fair value	215,634	178,348
Liabilities:
Noninterest-bearing demand deposits	685,957	364,155
Interest-bearing demand deposits	649,129	380,234
Money market and savings deposits	919,631	623,284
Time deposits	554,120	681,902
Borrowings	82,892	31,029
Derivative financial instruments	6,174	3,446
Fair Value, Inputs, Level 3 [Member]
Assets:
Loans, net and loans held for sale	2,377,581	1,879,825
Liabilities:
Subordinated debt	$ 40,550	$ 35,868

Derivatives - Fair Value Hedges

Derivatives - Fair Value Hedges on Balance Sheet (Details) - Interest Rate Swap Liability [Member] - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Weighted Average Remaining Maturity (In Years)	7 years 1 month 17 days	8 years 2 months 12 days
Weighted Average Pay Rate	3.08%	3.09%
Notional Amount	$ 36,000	$ 36,000
Estimated Fair Value	$ (6,174)	$ (3,446)

Derivatives - Fair Value Hedg_2

Derivatives - Fair Value Hedges on Income Statement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Interest income on tax-exempt securities	$ 2,150	$ 1,741
Effects of fair value hedge relationships	(781)	(223)
Reported interest income on tax-exempt securities	1,369	1,518
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on fair value hedging relationship	(6,174)	(3,446)
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on fair value hedging relationship	$ 6,174	$ 3,446

Derivatives - Fair Value Hedg_3

Derivatives - Fair Value Hedges in Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Carrying amount of hedged asset	$ 44,017	$ 42,710
Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets	$ (1,063)	$ (302)

Other comprehensive income (l_3

Other comprehensive income (loss) (Activity in Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
BALANCE	$ 312,747	$ 283,011
BALANCE	357,168	312,747
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
BALANCE	391	(1,979)
Other comprehensive income (loss)	2,581	2,395
Reclassification of amounts included in net income	(4)	(25)
Net other comprehensive income (loss) during period	2,577	2,370
BALANCE	2,968	391
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
BALANCE	(223)	(786)
Other comprehensive income (loss)	(562)	563
Net other comprehensive income (loss) during period	(562)	563
BALANCE	(785)	(223)
AOCI Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
BALANCE	168	(2,765)
Other comprehensive income (loss)	2,019	2,958
Reclassification of amounts included in net income	(4)	(25)
Net other comprehensive income (loss) during period	2,015	2,933
BALANCE	$ 2,183	$ 168

Condensed Parent Information (B

Condensed Parent Information (Balance Sheet) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
ASSETS:
Cash	$ 481,719	$ 183,971
Other assets	22,197	17,554
Total assets	3,304,949	2,449,123
LIABILITIES AND STOCKHOLDERS' EQUITY:
Other Liabilities	22,021	18,278
Total liabilities	2,947,781	2,136,376
Stockholders' equity	357,168	312,747	$ 283,011
Total liabilities and stockholders' equity	3,304,949	2,449,123
Parent [Member]
ASSETS:
Cash	8,062	13,155
Investment in subsidiaries	384,743	337,503
Other assets	4,413	1,996
Total assets	397,218	352,654
LIABILITIES AND STOCKHOLDERS' EQUITY:
Other Liabilities	704	646
Other borrowings	39,346	39,261
Total liabilities	40,050	39,907
Stockholders' equity	357,168	312,747
Total liabilities and stockholders' equity	$ 397,218	$ 352,654

Condensed Parent Information (I

Condensed Parent Information (Income Statement) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
INCOME:
Interest income	$ 117,613	$ 108,455
EXPENSES:
Interest expense	16,747	24,575
Other	7,647	6,205
Income tax expense	(6,558)	(6,897)
Net income	24,332	26,548
Parent [Member]
INCOME:
Interest income	0	0
Merger termination fee	0	6,400
Total income	0	6,400
EXPENSES:
Interest expense	2,334	2,341
Other	1,625	2,755
Total expense	3,959	5,096
Income (loss) before equity in undistributed earnings of subsidiaries and income tax benefit	(3,959)	1,304
Income tax expense	908	(389)
Income before equity in undistributed net income of subsidiaries	(3,051)	915
Equity in undistributed earnings of subsidiaries	27,383	25,633
Net income	$ 24,332	$ 26,548

Condensed Parent Information (C

Condensed Parent Information (Cash Flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 24,332	$ 26,548
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Other assets	4,529	(2,106)
Other liabilities	(298)	7,351
Net cash provided by operating activities	29,069	29,866
Cash flows from investing activities:
Net cash used in investing activities	(259,338)	(94,777)
Cash flows from financing activities:
Proceeds from issuance of common stock	339	438
Cash dividends paid	(2,986)	(700)
Repurchase of common stock	(4,308)
Net cash provided by financing activities	528,017	133,060
Net change in cash and cash equivalents	297,748	68,149
Cash and cash equivalents, beginning of year	183,971	115,822
Cash and cash equivalents, end of period	481,719	183,971
Parent [Member]
Cash flows from operating activities:
Net income	24,332	26,548
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Equity in undistributed income of subsidiary	(27,383)	(25,633)
Other assets	(2,417)	(1,894)
Other liabilities	143	712
Net cash provided by operating activities	(5,325)	(267)
Cash flows from investing activities:
Net cash paid for business combinations	(6,713)	0
Equity contribution to subsidiary	13,900	0
Net cash used in investing activities	7,187	0
Cash flows from financing activities:
Proceeds from issuance of common stock	339	438
Cash dividends paid	(2,986)	(700)
Repurchase of common stock	(4,308)	0
Net cash provided by financing activities	(6,955)	(262)
Net change in cash and cash equivalents	(5,093)	(529)
Cash and cash equivalents, beginning of year	13,155	13,684
Cash and cash equivalents, end of period	$ 8,062	$ 13,155