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REVENUE RECOGNITION (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Revenue by long-term contract type $ 20,101,713 $ 17,175,679 $ 42,090,096 $ 32,165,630
Aerostructures [Member]        
Revenue by long-term contract type 10,485,777 8,342,628 20,770,280 17,184,848
Aerosystems [Member]        
Revenue by long-term contract type 6,421,811 2,969,261 14,545,278 5,687,350
Kitting and Supply Chain Management [Member]        
Revenue by long-term contract type $ 3,194,125 $ 5,863,790 $ 6,774,538 $ 9,293,432