PROPERTY, PLANT AND EQUIPMENT, NET (Details) - USD ($)	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Property, Plant and Equipment, Net
Total property, plant and equipment	$ 12,505,927	$ 11,846,832
Less: accumulated depreciation	(7,593,725)	(7,032,648)
Total property, plant and equipment, net	4,912,202	4,814,184
Depreciation expense	689,293	747,553
Interest Costs Capitalized	7,158
LED Lighting Project
Capital incentive grant		146,000
Financing component of LED lighting grant		58,064
Proceeds from lighting project grant	0	204,064
LED Lighting		58,064
Land
Property, Plant and Equipment, Net
Total property, plant and equipment	110,113	110,113
Building and improvements
Property, Plant and Equipment, Net
Total property, plant and equipment	3,252,908	3,252,908
Machinery equipment, furniture and fixtures
Property, Plant and Equipment, Net
Total property, plant and equipment	8,601,199	8,418,243
Equipment under capital leases
Property, Plant and Equipment, Net
Total property, plant and equipment	54,376	65,568
Less: accumulated depreciation	(2,719)	(42,443)
Construction in Progress [Member]
Property, Plant and Equipment, Net
Total property, plant and equipment	$ 487,331	$ 0