Annual report pursuant to Section 13 and 15(d)

Property, Plant and Equipment (Details)

v3.6.0.2
Property, Plant and Equipment (Details) - USD ($)
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Jan. 03, 2015
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross $ 72,543,401 $ 96,498,216  
Less accumulated depreciation 45,219,309 50,203,945  
Property, plant and equipment, net 27,324,092 46,294,271  
Depreciation expense 4,235,203 4,356,911 $ 3,724,757
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation 25,300 5,400  
Land [Member]      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 62,916 1,819,736  
Land improvements [Member]      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 120,915 852,976  
Building [Member]      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 641,526 24,631,349  
Machinery, fixtures and equipment [Member]      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 66,099,880 61,928,770  
Machinery and equipment under capital lease      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 199,767 107,287  
Construction-in-progress [Member]      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross $ 5,418,397 $ 7,158,098