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DEBT - Long-term Debt (Details) - USD ($)
Sep. 30, 2018
Mar. 31, 2018
Long-term Debt    
Total debt $ 4,686,380 $ 5,063,703
Less: debt issue costs unamortized 86,973 112,075
Total debt, net 4,599,407 4,951,628
Less: Current portion of long-term debt 791,920 766,354
Long-term debt, including capital leases 3,807,487 4,185,274
Berkshire Term Loan Due December 2021    
Long-term Debt    
Total debt 2,702,243 2,745,181
People's Equipment Loan Facility due April 2021    
Long-term Debt    
Total debt 1,945,566 2,271,109
Obligations under capital leases    
Long-term Debt    
Total debt $ 38,571 $ 47,413