Note 8 - Revenue Recognition - Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Noninterest Income (in-scope of Topic 606)	$ 1,769	$ 1,568	$ 3,476	$ 3,326
Noninterest Income (out-of-scope of Topic 606)	343	373	927	949
Total noninterest income	2,112	1,941	4,403	4,275
Deposit Account [Member]
Noninterest Income (in-scope of Topic 606)	603	471	1,165	940
Product and Service, Other [Member]
Noninterest Income (in-scope of Topic 606)	51	43	106	84
Credit and Debit Card [Member]
Noninterest Income (in-scope of Topic 606)	535	479	975	913
Fiduciary and Trust [Member]
Noninterest Income (in-scope of Topic 606)	439	434	882	849
Insurance and Investment [Member]
Noninterest Income (in-scope of Topic 606)	$ 141	$ 141	$ 348	$ 540