Earnings per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator:
Net income available to common stockholders	$ 2,516	$ 2,006
Denominator for basic earnings per share - weighted average shares outstanding	6,383	6,407
Effect of dilutive common shares	37	29
Denominator for diluted earnings per share - adjusted weighted average shares outstanding	6,420	6,436
Basic earnings per share (in dollars per share)	$ 0.39	$ 0.31
Diluted earnings per share (in dollars per share)	$ 0.39	$ 0.31
Antidilutive shares excluded from computation of average dilutive earnings per share	202	126