5. Equipment and Leasehold Improvements (Details) - Property, Plant and Equipment - USD ($)	Mar. 31, 2017	Mar. 31, 2016
Property, Plant and Equipment [Line Items]
Less: Accumulated depreciation & amortization	$ (2,769,186)	$ (2,654,257)
Property and equipment, net	161,427	193,518
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	95,858	95,858
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,574,058	1,518,780
Automobiles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	23,712	23,712
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	599,796	572,236
Assets Held under Capital Leases [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 637,189	$ 637,189