Note 7 - Loans and the Allowance for Loan Losses - Allowance for Credit Losses and Recorded Investment in Loans Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	May 01, 2020
Beginning Balance	$ 22,024	$ 12,124
Charge-offs	(1,636)	(1,963)
Recoveries	677	428
Provision	8,047	11,435	$ 2,606
Ending Balance	29,112	22,024	12,124
Allowance for credit losses, individually evaluated for impairment	694	1,014
Allowance for credit losses, collectively evaluated for impairment	28,418	21,010
Purchased Credit Impaired	0	0		$ 49,828
Loans receivable	3,189,608	2,991,355
Loans receivable, individually evaluated for impairment	13,821	13,557
Loans receivable, collectively evaluated for impairment	3,124,567	2,913,538
Purchased Credit Impaired	51,220	64,260
Commercial Real Estate Portfolio Segment [Member] \| Construction and Land [Member]
Beginning Balance	3,584	1,868
Charge-offs	(28)	(26)
Recoveries	1	10
Provision	941	1,732
Ending Balance	4,498	3,584	1,868
Allowance for credit losses, individually evaluated for impairment	26	27
Allowance for credit losses, collectively evaluated for impairment	4,472	3,557
Purchased Credit Impaired	0	0
Loans receivable	548,528	403,065
Loans receivable, individually evaluated for impairment	1,358	924
Loans receivable, collectively evaluated for impairment	546,164	401,134
Purchased Credit Impaired	1,006	1,007
Commercial Real Estate Portfolio Segment [Member] \| Farmland [Member]
Beginning Balance	600	229
Charge-offs	(1)	(2)
Recoveries	2	0
Provision	120	373
Ending Balance	721	600	229
Allowance for credit losses, individually evaluated for impairment	0	93
Allowance for credit losses, collectively evaluated for impairment	721	507
Purchased Credit Impaired	0	0
Loans receivable	87,463	55,883
Loans receivable, individually evaluated for impairment	74	299
Loans receivable, collectively evaluated for impairment	87,387	55,516
Purchased Credit Impaired	2	68
Commercial Real Estate Portfolio Segment [Member] \| Nonfarm Nonresidential [Member]
Beginning Balance	7,369	3,882
Charge-offs	(139)	(232)
Recoveries	99	12
Provision	2,465	3,707
Ending Balance	9,794	7,369	3,882
Allowance for credit losses, individually evaluated for impairment	83	119
Allowance for credit losses, collectively evaluated for impairment	9,711	7,250
Purchased Credit Impaired	0	0
Loans receivable	1,144,426	971,603
Loans receivable, individually evaluated for impairment	2,959	3,525
Loans receivable, collectively evaluated for impairment	1,118,836	939,422
Purchased Credit Impaired	22,631	28,656
Residential Portfolio Segment [Member] \| Real Estate Residential One- to Four-Family [Member]
Beginning Balance	3,453	1,888
Charge-offs	(169)	(387)
Recoveries	39	53
Provision	468	1,899
Ending Balance	3,791	3,453	1,888
Allowance for credit losses, individually evaluated for impairment	110	62
Allowance for credit losses, collectively evaluated for impairment	3,681	3,391
Purchased Credit Impaired	0	0
Loans receivable	467,699	468,650
Loans receivable, individually evaluated for impairment	3,627	2,957
Loans receivable, collectively evaluated for impairment	444,934	438,240
Purchased Credit Impaired	19,138	27,453
Residential Portfolio Segment [Member] \| Multi-family Residential [Member]
Beginning Balance	818	226
Charge-offs	0
Recoveries	0	0
Provision	(44)	592
Ending Balance	774	818	226
Allowance for credit losses, individually evaluated for impairment	0	0
Allowance for credit losses, collectively evaluated for impairment	774	818
Purchased Credit Impaired	0	0
Loans receivable	97,508	95,707
Loans receivable, individually evaluated for impairment	0	0
Loans receivable, collectively evaluated for impairment	97,508	95,707
Purchased Credit Impaired	0	0
Commercial Portfolio Segment [Member]
Beginning Balance	5,018	3,414
Charge-offs	(830)	(849)
Recoveries	417	203
Provision	3,753	2,250
Ending Balance	8,358	5,018	3,414
Allowance for credit losses, individually evaluated for impairment	438	609
Allowance for credit losses, collectively evaluated for impairment	7,920	4,409
Purchased Credit Impaired	0	0
Loans receivable	721,385	886,325
Loans receivable, individually evaluated for impairment	5,514	5,517
Loans receivable, collectively evaluated for impairment	708,346	875,611
Purchased Credit Impaired	7,525	5,197
Consumer Portfolio Segment [Member]
Beginning Balance	1,182	617
Charge-offs	(469)	(467)
Recoveries	119	150
Provision	344	882
Ending Balance	1,176	1,182	$ 617
Allowance for credit losses, individually evaluated for impairment	37	104
Allowance for credit losses, collectively evaluated for impairment	1,139	1,078
Purchased Credit Impaired	0	0
Loans receivable	122,599	110,122
Loans receivable, individually evaluated for impairment	289	335
Loans receivable, collectively evaluated for impairment	121,392	107,908
Purchased Credit Impaired	$ 918	$ 1,879

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Reserve for loans impairments recorded after acquisition as a result of current information and events which result in it being probable that estimated cash flows will be less than previously expected or because actual cash flows are less than cash flows previously expected. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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