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Summary of Significant Accounting Policies (Details Narrative) - USD ($)
$ in Thousands
12 Months Ended
Oct. 13, 2016
Dec. 31, 2021
Dec. 31, 2020
Inventory reserve   $ 74 $ 72
Contract retentions   1,139 1,709
Allowances for doubtful accounts   $ 437 $ 397
Purchase percentage   10.00% 10.00%
Advertising costs   $ 459 $ 383
Common stock share grant 400,000    
Two Customer      
Revenue percentage   23.00%  
One Customer      
Revenue percentage     25.00%
Trade account receivable percentage   17.00% 27.00%