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Note 8 - Revenue Recognition - Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Noninterest Income (in-scope of Topic 606)	$ 1,757	$ 1,459
Noninterest Income (out-of-scope of Topic 606)	577	676
Total noninterest income	2,334	2,135
Deposit Account [Member]
Noninterest Income (in-scope of Topic 606)	469	582
Product and Service, Other [Member]
Noninterest Income (in-scope of Topic 606)	41	39
Credit and Debit Card [Member]
Noninterest Income (in-scope of Topic 606)	434	306
Fiduciary and Trust [Member]
Noninterest Income (in-scope of Topic 606)	415	434
Insurance and Investment [Member]
Noninterest Income (in-scope of Topic 606)	$ 398	$ 98

X

- Definition

Amount, including tax collected from customer, of revenue (outside of topic 606) from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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