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Note 25 - Acquisitions (Details Textual) - USD ($) $ / shares in Units, $ in Thousands				6 Months Ended		12 Months Ended
	Sep. 30, 2021	Jul. 01, 2021	Jun. 30, 2021	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Business Combination, Consideration Transferred, Total						$ 117,566
Payments to Acquire Businesses, Gross						90,497
Assets, Total					$ 1,389,437	1,369,383	$ 1,389,437
Loans and Leases Receivable, Net Amount, Total					819,408	913,077	819,408
Deposits, Total					1,248,752	1,241,332	1,248,752
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Total						352,449
Business Acquisition, Pro Forma Net Income (Loss)						$ 9,826	$ 7,660
Business Acquisition, Pro Forma Earnings Per Share, Basic (in dollars per share)						$ 1.77	$ 1.57
The Bank of Fincastle [Member]
Assets, Total			$ 267,900
Loans and Leases Receivable, Net Amount, Total			194,500
Deposits, Total			236,300
Smartbank [Member]
Legal Fees			$ 629
The Bank of Fincastle [Member]
Business Combination, Consideration Transferred, Total		$ 33,821
Payments to Acquire Businesses, Gross		$ 6,752
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)		1,348,065
Business Combination, Acquisition Related Costs				$ 69		$ 3,400	$ 3,400
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Total		$ 270,497
Smartbank [Member]
Business Combination, Consideration Transferred, Total	$ 83,745
Payments to Acquire Businesses, Gross	83,745
Business Combination, Acquisition Related Costs	101,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Total	$ 81,952
Smartbank [Member] \| Merger Related Expenses, Net of Tax [Member]
Business Acquisition, Pro Forma Net Income (Loss)							$ 3,400
Business Acquisition, Pro Forma Earnings Per Share, Basic (in dollars per share)							$ 0.61
Fincastle and SmartBank [Member]
Business Combination, Acquisition Related Costs				$ 69	$ 3,500