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PROPERTY, PLANT, AND EQUIPMENT (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Property, plant, and equipment      
Property, plant and equipment, gross $ 35,045,231 $ 33,554,176  
Accumulated depreciation (22,953,194) (22,086,115)  
Property, plant and equipment, net 12,092,037 11,468,061  
Depreciation expense 867,080 849,804 $ 1,065,248
Land      
Property, plant, and equipment      
Property, plant and equipment, gross 261,893 261,893  
Buildings and building improvements      
Property, plant, and equipment      
Property, plant and equipment, gross 11,561,320 11,485,797  
Production equipment      
Property, plant, and equipment      
Property, plant and equipment, gross 17,762,025 15,648,515  
Office furniture and equipment      
Property, plant, and equipment      
Property, plant and equipment, gross 3,415,985 3,316,390  
Construction in Progress      
Property, plant, and equipment      
Property, plant and equipment, gross 1,941,687 2,739,260  
Automobiles      
Property, plant, and equipment      
Property, plant and equipment, gross $ 102,321 $ 102,321