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3. Accounts Receivable (Details Narrative)
3 Months Ended 12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Sales Revenue, Segment [Member] | CommercialMember      
Concentration Risk [Line Items]      
Concentration risk (as a percent) 13.70% 15.70%  
Sales Revenue, Segment [Member] | Governmental Agency [Member]      
Concentration Risk [Line Items]      
Concentration risk (as a percent) 23.50% 1.40%  
Accounts Receivable [Member] | CommercialMember      
Concentration Risk [Line Items]      
Concentration risk (as a percent) 21.40%   23.00%
Accounts Receivable [Member] | Governmental Agency [Member]      
Concentration Risk [Line Items]      
Concentration risk (as a percent) 17.10%   11.60%