Note 10 - Stock Option Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Granted	512,000	221,000
Options, Granted, Weighted Average Grant Date Fair Value	$ 0.79	$ 0.39
Options exercisable, weighted average remaining contractual term	4 years 1 month 6 days	3 years 4 months 24 days
Options outstanding, weighted average remaining contractual term	5 years 9 months 18 days	4 years 9 months 18 days
Options, Exercisable, Aggregate Intrinsic Value	$ 728	$ 330
Options, Outstanding, Aggregate Intrinsic Value	1,038	591
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	137
Total unrecognized share-based compensation cost	$ 198	$ 35
Total unrecognized share-based compensation, compensation cost not yet recognized, weighted-average period	3 years 9 months 18 days	1 year 10 months 24 days
Allocated Share-based Compensation Expense	$ 171	$ 41
2004 Stock Incentive Plan Of Evans Sutherland Computer Corporation
Minimum exercise price for options	The 2014 Plan continues a minimum exercise price for options of 110% of fair market value on the date of grant.
Number of Shares Authorized	973,981
Directors | 2004 Stock Incentive Plan Of Evans Sutherland Computer Corporation
Granted	10,000