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18. Earnings Per Common Share (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Earnings per common share:
Weighted average number of shares outstanding	10,773,623	10,686,813
Effect of dilutive securities, common share equivalents: Stock options	$ 0	$ 19,823
Effect of dilutive securities, common share equivalents: Restricted stock awards	$ 0	$ 10,250
Weighted average number of shares outstanding, used for computing diluted earnings per share	10,773,623	10,716,886

X

- Definition

Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise of stock options or restrictive stock units (RSUs).

+ References

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Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise stock options, restrictive stock units (RSUs), convertible preferred stock of an employee stock ownership plan (ESOP), and other dilutive convertible securities.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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