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Accounts Receivable and Significant Concentrations (Details 2) - Sales Revenue, Net
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
U.S. Immigration and Customs Enforcement    
As a % of revenues 0.00% 14.00%
U.S. Customs Boarder Patrol    
As a % of revenues 0.00% 12.00%
United States Census Bureau    
As a % of revenues 50.00% 10.00%