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PROPERTY, PLANT AND EQUIPMENT, NET (Details) - USD ($)
3 Months Ended 6 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Mar. 31, 2016
Property, Plant and Equipment, Net          
Total property, plant and equipment $ 11,961,688   $ 11,961,688   $ 11,846,832
Less: accumulated depreciation (7,386,136)   (7,386,136)   (7,032,648)
Total property, plant and equipment, net 4,575,552   4,575,552   4,814,184
Depreciation expense 177,438 $ 195,892 353,488 $ 393,119  
Land          
Property, Plant and Equipment, Net          
Total property, plant and equipment 110,113   110,113   110,113
Building and improvements          
Property, Plant and Equipment, Net          
Total property, plant and equipment 3,252,908   3,252,908   3,252,908
Machinery equipment, furniture and fixtures          
Property, Plant and Equipment, Net          
Total property, plant and equipment 8,533,099   8,533,099   8,418,243
Equipment under capital leases          
Property, Plant and Equipment, Net          
Total property, plant and equipment $ 65,568   $ 65,568   $ 65,568