REVENUES - Disaggregation of Revenue (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 20,778,639	$ 27,248,509
Training and Simulation Division
Disaggregation of Revenue [Line Items]
Revenues	13,989,615	14,557,864
Training and Simulation Division | Fixed Price
Disaggregation of Revenue [Line Items]
Revenues	10,971,102	12,209,969
Training and Simulation Division | Cost Reimbursement (Cost Plus)
Disaggregation of Revenue [Line Items]
Revenues	1,349,345	1,338,951
Training and Simulation Division | Time and Materials
Disaggregation of Revenue [Line Items]
Revenues	1,669,168	1,008,944
Power Systems Division
Disaggregation of Revenue [Line Items]
Revenues	6,789,024	12,690,645
Power Systems Division | Fixed Price
Disaggregation of Revenue [Line Items]
Revenues	6,169,657	12,072,168
Power Systems Division | Cost Reimbursement (Cost Plus)
Disaggregation of Revenue [Line Items]
Revenues	431,050	388,749
Power Systems Division | Time and Materials
Disaggregation of Revenue [Line Items]
Revenues	$ 188,317	$ 229,728