Annual report pursuant to Section 13 and 15(d)

Property, Plant and Equipment (Details)

v3.3.1.900
Property, Plant and Equipment (Details) - USD ($)
 12 Months Ended
Dec. 31, 2015
Jan. 03, 2015
Dec. 28, 2013
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross $ 96,498,216 $ 85,973,568  
Less accumulated depreciation 50,203,945 46,036,102  
Property, plant and equipment, net 46,294,271 39,937,466  
Depreciation expense 4,356,911 3,724,757 $ 3,074,369
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation 5,400    
Capital Lease Obligations   0  
Land [Member]      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 1,819,736 1,742,213  
Land improvements [Member]      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 852,976 714,398  
Building [Member]      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 24,631,349 21,371,594  
Machinery, fixtures and equipment [Member]      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 61,928,770 56,651,197  
Machinery and equipment under capital lease      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross 107,287 0  
Construction-in-progress [Member]      
Property, Plant and Equipment [Line Items]      
Total property, plant and equipment, gross $ 7,158,098 $ 5,494,166