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MAJOR CUSTOMERS (Details Narrative) - Number
9 Months Ended 12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Concentration Risk [Line Items]      
Number of large customers contributing to revenue of entity 4 3  
Number of large commercial customers accounted for major share in costs and estimated earnings in excess of billings on uncompleted contracts 4   4
Number of large customers included in accounts receivable of entity 5   3
Costs and Estimated Earnings in Excess of Billing - Customer #1 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 32.00%   33.00%
Costs and Estimated Earnings in Excess of Billing - Customer #2 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 23.00%   26.00%
Costs and Estimated Earnings in Excess of Billing - Customer #3 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 11.00%   12.00%
Costs and Estimated Earnings in Excess of Billing - Customer #4 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 10.00%   11.00%
Costs and Estimated Earnings in Excess of Billing - US Government [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 2.00%    
Costs and Estimated Earnings in Excess of Billing - US Government [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage     1.00%
Accounts Receivable Customer #1 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 20.00%   35.00%
Accounts Receivable Customer #2 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 19.00%   24.00%
Accounts Receivable Customer #3 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 19.00%   17.00%
Accounts Receivable Customer #4 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 12.00%    
Accounts Receivable Customer #5 [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 11.00%    
Customer #1 Concentration Risk [Member] | Revenue [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 28.00% 35.00%  
Customer #2 Concentration Risk [Member] | Revenue [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 23.00% 30.00%  
Customer #3 Concentration Risk [Member] | Revenue [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 11.00% 13.00%  
Customer #4 Concentration Risk [Member] | Revenue [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 10.00%    
US Government Concentration Risk [Member] | Revenue [Member]      
Concentration Risk [Line Items]      
Concentration risk, percentage 5.20%