Shareholders' Equity (Details Narrative) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Aggregate intrinsic value of options outstanding	$ 0	$ 0
Weighted average remaining life of options exercisable	3 years 1 month 28 days
Aggregate intrinsic value of options exercisable	$ 0
Options exercisable	0	27,285
Unrecognized compensation costs related to stock options	$ 20,000
Unrecognized compensation costs related to restricted stock units	242,000
Stock-based compensation expense	$ 172,000	$ 422,000
Stock Options
Unrecognized compensation costs period of recognition	1 year 7 months 10 days
Restricted Stock and Restricted Stock Units
Unrecognized compensation costs period of recognition	10 months 17 days
Employee Stock Purchase Plan
Employees purchased shares	6,152	4,638
Shares are reserved for future employee purchases	28,977
Stock-based compensation expense	$ 18,000	$ 55,000

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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