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Note 8 - Basic and Diluted Earnings Per Common Share - Reconciliation of Net Income and Number of Shares Used in Computations of Basic and Diluted EPS (Details) - USD ($)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Net income	$ 613,000	$ 576,000
Basic weighted average common shares outstanding (in shares)	10,724,760	11,285,296
Add: dilutive effect of common stock options (in shares)	111,821	104,098
Diluted weighted average common shares outstanding (in shares)	10,836,581	11,389,394
Basic earnings per common share (in dollars per share)	$ 0.06	$ 0.05
Diluted earnings per common share (in dollars per share)	$ 0.06	$ 0.05

X

- 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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