Note 2 - Loans and Allowance for Loan Losses - Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Loans, gross	$ 2,344,505	$ 2,330,600	$ 2,169,687
Net deferred loan fees	(10,176)	(9,295)
Total loans	2,334,329	2,321,305
Less: Allowance for loan losses	(39,330)	(38,539)	(30,281)	$ (28,726)
Net loans	2,294,999	2,282,766
Real Estate Portfolio Segment [Member]
Loans, gross	2,096,903	2,076,783
Real Estate Portfolio Segment [Member] \| Residential 1 to 4 Family [Member]
Loans, gross	527,092	535,994	519,775
Less: Allowance for loan losses	(7,939)	(8,098)	(7,351)	(7,144)
Real Estate Portfolio Segment [Member] \| Multifamily Real Estate [Member]
Loans, gross	93,318	111,646	151,929
Less: Allowance for loan losses	(1,334)	(1,541)	(1,641)	(1,117)
Real Estate Portfolio Segment [Member] \| Commercial Real Estate [Member]
Loans, gross	865,388	837,766	841,521
Less: Allowance for loan losses	(17,558)	(16,802)	(12,744)	(11,114)
Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Loans, gross	513,931	488,626	388,769
Less: Allowance for loan losses	(8,476)	(7,936)	(5,200)	(5,997)
Real Estate Portfolio Segment [Member] \| Farmland [Member]
Loans, gross	12,377	15,429	18,610
Less: Allowance for loan losses	(124)	(154)	(177)	(187)
Real Estate Portfolio Segment [Member] \| Second Mortgages [Member]
Loans, gross	8,164	8,433	11,254
Less: Allowance for loan losses	(102)	(105)	(127)	(123)
Real Estate Portfolio Segment [Member] \| Home Equity Line of Credit [Member]
Loans, gross	76,633	78,889	74,908
Less: Allowance for loan losses	(970)	(997)	(845)	(889)
Commercial Portfolio Segment [Member]
Loans, gross	170,712	172,811	95,547
Less: Allowance for loan losses	(1,295)	(1,378)	$ (998)	$ (1,044)
Agricultural Portfolio Segment [Member]
Loans, gross	1,019	1,206
Consumer Portfolio Segment [Member]
Loans, gross	66,724	70,517
Consumer Portfolio Segment [Member] \| Personal Loan [Member]
Loans, gross	62,403	66,193
Consumer Portfolio Segment [Member] \| Credit Card Receivable [Member]
Loans, gross	4,321	4,324
Unallocated Financing Receivables [Member]
Loans, gross	$ 9,147	$ 9,283

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 of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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