NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012 item
Accounts Receivable and Allowance for Doubtful Accounts
Allowance for doubtful accounts	$ 138,000	$ 157,000
Inventories
Raw materials	12,282,902	13,325,525
Work in process	3,317,573	2,704,653
Finished goods	2,926,512	3,108,839
Reserve	(1,099,517)	(1,474,155)
Total	17,427,470	17,664,862
Property, Equipment and Depreciation
Accumulated Depreciation	(18,943,393)	(17,411,472)
Net Property and Equipment	11,037,160	11,566,315
Land
Property, Equipment and Depreciation
Property and equipment	375,000	375,000
Assets Held for Sale
Assets held for sale		12,500
Building and Leasehold Improvements
Property, Equipment and Depreciation
Property and equipment	9,116,429	8,997,813
Buildings
Property, Equipment and Depreciation
Estimated useful lives	39 years
Assets Held for Sale
Assets held for sale		117,003
Number of assets held for sale		1
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	15,953,227	15,065,683
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	$ 4,535,897	$ 4,539,291
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