Net (loss) Income Per Common Share (Computation of Basic and Diluted Net Income Per Common Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Numerator:
Net (loss) income	$ (1,411)	$ 1,222
Denominator:
Weighted average number of shares of common stock outstanding	8,801,337	8,761,538
Weighted average effect of dilutive share-based compensation		98,987
Diluted weighted average number of shares of common stock outstanding	8,801,337	8,860,525
Net (loss) income per common share:
Net (loss) income per common share - Basic	$ (0.16)	$ 0.14
Net (loss) income per common share - Diluted	$ (0.16)	$ 0.14