Note 18 - Revenue Recognition - Noninterest Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Noninterest Income (in-scope of Topic 606)	$ 6,653	$ 5,654
Noninterest Income (out-of-scope of Topic 606)	1,773	2,290
Total noninterest income	8,426	7,944
Deposit Account [Member]
Noninterest Income (in-scope of Topic 606)	2,045	1,966
Product and Service, Other [Member]
Noninterest Income (in-scope of Topic 606)	179	162
Credit and Debit Card [Member]
Noninterest Income (in-scope of Topic 606)	1,869	1,400
Fiduciary and Trust [Member]
Noninterest Income (in-scope of Topic 606)	1,792	1,662
Insurance and Investment [Member]
Noninterest Income (in-scope of Topic 606)	$ 768	$ 464