Organization and Summary of Significant Accounting Policies (Details 5) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Net income	$ 446	$ 3,846
Basic
Weighted-average common shares outstanding (in thousands)	19,192	18,977
Basic earnings per share	$ .02	$ 0.20
Diluted
Weighted-average common shares outstanding (in thousands)	19,192	18,977
Effect of dilutive securities: stock options and restricted stock units (in thousands)	177	49
Diluted weighted-average commons shares outstanding (in thousands)	19,369	19,026
Diluted earnings per share	$ .02	$ 0.20