Note 3 - Mergers and Acquisitions - Schedule of Acquisition (Details) - USD ($)			12 Months Ended
	Apr. 01, 2023	Jul. 10, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash consideration paid			$ 595,000		$ 48,920,000
Goodwill resulting from acquisition			56,000,000	$ 55,300,000
Net cash received from MVB			$ 14,364,000	$ 0	$ 95,699,000
PSB Holding Corp (PSB) [Member]
Cash consideration paid	$ 595,000
Stock consideration	39,025,000
Total consideration	39,620,000
Cash and cash equivalents	14,959,000
Securities available for sale, at fair value	122,734,000
Securities held to maturity	18,191,000
Purchased performing	346,028,000
Purchased credit deteriorated	16,978,000
Allowance for credit losses on loans	0
Premises and equipment	6,175,000
Core deposit intangibles	14,928,000
Other assets	21,182,000
Total identifiable assets acquired	561,175,000
Deposits	497,553,000
Short-term borrowings	17,650,000
Long-term borrowings	5,143,000
Other liabilities	1,896,000
Total identifiable liabilities assumed	522,242,000
Net identifiable assets acquired	38,933,000
Goodwill resulting from acquisition	687,000
PSB Holding Corp (PSB) [Member] | Reported Value by Acquiree [Member]
Cash and cash equivalents	14,959,000
Securities available for sale, at fair value	122,734,000
Securities held to maturity	20,466,000
Purchased performing	363,446,000
Purchased credit deteriorated	18,473,000
Allowance for credit losses on loans	(3,341,000)
Premises and equipment	6,600,000
Core deposit intangibles	0
Other assets	24,981,000
Total identifiable assets acquired	568,318,000
Deposits	497,802,000
Short-term borrowings	17,650,000
Long-term borrowings	5,209,000
Other liabilities	7,284,000
Total identifiable liabilities assumed	527,945,000
Net identifiable assets acquired	40,373,000
PSB Holding Corp (PSB) [Member] | Fair Value Adjustments [Member]
Cash and cash equivalents	0
Securities available for sale, at fair value	0
Securities held to maturity	(2,275,000)
Purchased performing	(17,418,000)
Purchased credit deteriorated	(1,495,000)
Allowance for credit losses on loans	3,341,000
Premises and equipment	(425,000)
Core deposit intangibles	14,928,000
Other assets	(3,799,000)
Total identifiable assets acquired	(7,143,000)
Deposits	(249,000)
Short-term borrowings	0
Long-term borrowings	(66,000)
Other liabilities	(5,388,000)
Total identifiable liabilities assumed	(5,703,000)
Net identifiable assets acquired	$ (1,440,000)
MVB [Member]
Cash consideration paid		$ 9,807,000
Total consideration		9,807,000
Cash and cash equivalents		946,000
Purchased performing		53,918,000
Premises and equipment		3,302,000
Core deposit intangibles		178,000
Other assets		260,000
Total identifiable assets acquired		59,001,000
Deposits		164,040,000
Other liabilities		45,000
Total identifiable liabilities assumed		164,085,000
Net identifiable assets acquired		(105,084,000)
Goodwill resulting from acquisition		10,331,000
Purchased credit deteriorated		397,000
Net cash received from MVB		94,753,000
MVB [Member] | Reported Value by Acquiree [Member]
Cash and cash equivalents		946,000
Purchased performing		53,440,000
Premises and equipment		3,431,000
Core deposit intangibles		0
Other assets		260,000
Total identifiable assets acquired		58,565,000
Deposits		163,081,000
Other liabilities		45,000
Total identifiable liabilities assumed		163,126,000
Net identifiable assets acquired		(104,561,000)
Purchased credit deteriorated		488,000
MVB [Member] | Fair Value Adjustments [Member]
Cash and cash equivalents		0
Purchased performing		478,000
Premises and equipment		(129,000)
Core deposit intangibles		178,000
Other assets		0
Total identifiable assets acquired		436,000
Deposits		959,000
Other liabilities		0
Total identifiable liabilities assumed		959,000
Net identifiable assets acquired		(523,000)
Purchased credit deteriorated		$ (91,000)