4. Earnings/(Loss) Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings/(loss) per common share:
Net income/(loss)	$ 338	$ 239	$ 47	$ (63)	$ 577	$ (16)
Weighted-average share reconciliation:
Weighted-average basic shares outstanding	14,462,722		14,299,638		14,428,694	14,293,658
Dilutive effect of stock-based awards	1,045,848		847,617		910,710	0
Diluted shares outstanding	15,508,570		15,147,255		15,339,404	14,293,658
Earnings/(loss) per common share:
Basic	$ 0.02		$ .00		$ 0.04	$ (0.00)
Diluted	$ 0.02		$ .00		$ 0.04	$ (0.00)