Note 2 - Mergers/Acquisitions/Sales - Fair value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands			12 Months Ended
	Apr. 01, 2022	Mar. 31, 2022	Dec. 31, 2022
ASSETS
Cash and due from banks			$ 171,844
Interest-bearing deposits at financial institutions			17,134
Securities			143,017
Loans/leases receivable, net			801,697
Bank-owned life insurance			32,100
Premises and equipment			16,257
Restricted investment securities			2,220
Other real estate owned			55
Intangibles			10,264
Other assets			23,685
Total assets acquired			1,218,273
LIABILITIES
Deposits			1,076,573
FHLB advances			16,000
Junior subordinated debentures			10,310
Other liabilities			15,225
Total liabilities assumed			1,137,729
Net assets acquired			80,544
Consideration paid:
Common stock			117,214
Total consideration paid			144,085
Goodwill			$ 63,541
Guaranty Federal Bancshares, Inc
ASSETS
Cash and due from banks	$ 171,844
Interest-bearing deposits at financial institutions	17,134
Securities	143,017
Loans/leases receivable, net	801,697
Bank-owned life insurance	32,100
Premises and equipment	16,257
Restricted investment securities	2,220
Other real estate owned	55
Intangibles	10,264
Other assets	23,685
Total assets acquired	1,218,273
LIABILITIES
Deposits	1,076,573
FHLB advances	16,000
Subordinated notes	19,621
Junior subordinated debentures	10,310
Other liabilities	15,225
Total liabilities assumed	1,137,729
Net assets acquired	80,544
Consideration paid:
Cash paid	26,871
Common stock	117,214
Total consideration paid	144,085	$ 26,900
Goodwill	$ 63,541