5. Calculation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Numerator:
Net Income (Loss)	$ 291	$ (121)	$ 622	$ (418)
Denominator:
Denominator for basic earnings (loss) per share - weighted-average shares	3,542,000	3,014,000	3,319,000	3,014,000
Effect of dilutive securities:
Employee stock options	8,000	0	3,000	0
Warrants	0	0	76,000	0
Dilutive potential common shares	8,000	0	79,000	0
Denominator for diluted earnings (loss) per share - weighted-average shares and assumed conversions	3,550,000	3,014,000	3,398,000	3,014,000
Basic earnings (loss) per common share	$ .08	$ (.04)	$ .19	$ (.14)
Diluted earnings (loss) per common share	$ .08	$ (.04)	$ .18	$ (.14)