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PROPERTY AND EQUIPMENT (Details) - USD ($)
3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Total Property and Equipment $ 31,282,000 $ 31,193,000
Less: Accumulated Depreciation (19,702,000) (18,974,000)
Property and Equipment, net 11,580,000 12,219,000
Land [Member]    
Total Property and Equipment 300,000 300,000
Buildings and Improvements [Member]    
Total Property and Equipment $ 1,672,000 1,650,000
Property Plant And Equipment Useful Life 31 years 6 months  
Machinery and Equipment [Member]    
Total Property and Equipment $ 14,062,000 14,032,000
Machinery and Equipment [Member] | Minimum    
Property Plant And Equipment Useful Life 5 years  
Machinery and Equipment [Member] | Maximum [Member]    
Property Plant And Equipment Useful Life 8 years  
Capital Lease Machinery and Equipment [Member]    
Total Property and Equipment $ 5,573,000 5,573,000
Capital Lease Machinery and Equipment [Member] | Minimum    
Property Plant And Equipment Useful Life 3 years  
Capital Lease Machinery and Equipment [Member] | Maximum [Member]    
Property Plant And Equipment Useful Life 5 years  
Tools and Instruments [Member]    
Total Property and Equipment $ 7,554,000 7,520,000
Tools and Instruments [Member] | Minimum    
Property Plant And Equipment Useful Life 1 year 6 months  
Tools and Instruments [Member] | Maximum [Member]    
Property Plant And Equipment Useful Life 7 years  
Automotive Equipment [Member]    
Total Property and Equipment $ 195,000 195,000
Property Plant And Equipment Useful Life 5 years  
Furniture and Fixtures [Member]    
Total Property and Equipment $ 438,000 438,000
Furniture and Fixtures [Member] | Minimum    
Property Plant And Equipment Useful Life 5 years  
Furniture and Fixtures [Member] | Maximum [Member]    
Property Plant And Equipment Useful Life 8 years  
Leasehold Improvements [Member]    
Total Property and Equipment $ 969,000 966,000
Property Plant And Equipment Useful Life Term of Lease  
Computers and Software [Member]    
Total Property and Equipment $ 519,000 $ 519,000
Computers and Software [Member] | Minimum    
Property Plant And Equipment Useful Life 4 years  
Computers and Software [Member] | Maximum [Member]    
Property Plant And Equipment Useful Life 6 years