NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Accounts Receivable and Allowance for Doubtful Accounts
Allowance for doubtful accounts	$ 320,000	$ 137,000
Inventories
Raw Materials	13,782,411	12,745,623
Work in Process	4,674,223	3,653,670
Finished Goods	2,478,423	2,861,373
Reserve	(749,612)	(732,248)
Total	20,185,445	18,528,418
Property, Equipment and Depreciation
Accumulated Depreciation	(22,712,738)	(20,827,645)
Net Property and Equipment	10,507,748	10,888,717
Land
Property, Equipment and Depreciation
Property and equipment	375,000	375,000
Building and Leasehold Improvements
Property, Equipment and Depreciation
Property and equipment	$ 9,273,866	9,184,710
Buildings
Property, Equipment and Depreciation
Estimated useful lives	39 years
Leasehold improvements | Minimum
Property, Equipment and Depreciation
Estimated useful lives	3 years
Leasehold improvements | Maximum
Property, Equipment and Depreciation
Estimated useful lives	15 years
Manufacturing equipment
Property, Equipment and Depreciation
Property and equipment	$ 18,588,934	16,769,847
Manufacturing equipment | Minimum
Property, Equipment and Depreciation
Estimated useful lives	3 years
Manufacturing equipment | Maximum
Property, Equipment and Depreciation
Estimated useful lives	7 years
Office and other equipment
Property, Equipment and Depreciation
Property and equipment	$ 4,982,686	$ 5,386,805
Office and other equipment | Minimum
Property, Equipment and Depreciation
Estimated useful lives	3 years
Office and other equipment | Maximum
Property, Equipment and Depreciation
Estimated useful lives	7 years