Note 13 - Commitments and Off-balance-sheet Risk (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Summary of Contractual Amounts of Financial Instruments With Off Balance Sheet Risk [Table Text Block]

	2021		2020
Commercial unused lines of credit	$	1,098,951,000	$	1,019,496,000
Unused lines of credit secured by 1 – 4 family residential properties		64,313,000		59,396,000
Credit card unused lines of credit		92,146,000		72,495,000
Other consumer unused lines of credit		64,876,000		30,707,000
Commitments to make loans		212,476,000		227,558,000
Standby letters of credit		33,109,000		20,543,000
Total commitments	$	1,565,871,000	$	1,430,195,000

Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]

	2021				2020
	Contract		Carrying		Contract		Carrying
	Amount		Value		Amount		Value
Standby letters of credit	$	33,109,000	$	212,000	$	20,543,000	$	138,000