Note 20 - Revenue Recognition - Noninterest Income (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Noninterest income (in-scope of Topic 606)		$ 3,124	$ 2,995
Noninterest income (out-of-scope of Topic 606)		1,466	1,368
Total noninterest income		4,590	4,363
Maintenance Fees [Member]
Noninterest income (in-scope of Topic 606)		180	203
Overdraft Fees [Member]
Noninterest income (in-scope of Topic 606)		998	1,044
Other Fees [Member]
Noninterest income (in-scope of Topic 606)		257	251
Electronic Banking Fees [Member]
Noninterest income (in-scope of Topic 606)	[1]	$ 1,689	$ 1,497

[1] included in other noninterest income on the Consolidated Statements of Net Income