8. Loss per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net loss (numerator for basic and diluted income per share)	$ (694)	$ (1,192)
Denominator:
Denominator for basic loss per share weighted average shares	12.517412	12,555,108
Effect of dilutive securities:
Options and restricted stock units	0	0
Denominator
Denominator for diluted loss per share weighted average shares	12.517412	12,555,108
Net loss per share-basic and diluted	$ (0.06)	$ (0.09)