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Note 11 - Earnings Per Common Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income	$ 2,436	$ 1,705
Weighted average shares outstanding – basic (in shares)	4,863,823	4,950,887
Potentially dilutive common shares – restricted stock units (in shares)	8,274	5,083
Weighted average shares outstanding – diluted (in shares)	4,872,097	4,955,970
Basic (in dollars per share)	$ 0.50	$ 0.34
Diluted (in dollars per share)	$ 0.50	$ 0.34

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- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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