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DEBT AND CREDIT AGREEMENTS (Details) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 23, 2012
Dec. 31, 2016
Oct. 26, 2016
Feb. 23, 2016
Dec. 31, 2015
Jun. 29, 2015
Credit Facilities            
Long-term debt, gross   $ 2,600        
Less: Current portion         $ (2,799)  
Long-term debt, net of current maturities   2,600     2,600  
Future annual principal payments            
2018   2,600        
Term loans and notes payable   2,600        
Maximum borrowing capacity   10,000   $ 10,000    
Debt Instrument, Face Amount   5,000        
Income Loss From Continuing Operations Before Interest, Taxes, Depreciation and Amortization   $ 7,000        
Maximum borrowing capacity of the face value of eligible A/R (as a percent)   85.00%        
Maximum percentage of book value of inventories that may be financed   50.00%        
Maximum borrowing capacity of the face value of machinery, equipment and property that may be financed   50.00%        
Annual unused line fee (as a percent)   0.50%        
Repayment of the balance of the Term Loan   $ 2,441        
Liquidity Requirement       $ 3,500    
Current borrowing capacity   17,226        
extinguishment losses   $ 77        
Minimum            
Future annual principal payments            
Variable rate basis   2.25%        
Interest rate margin (as a percent)   0.00%        
Maximum            
Future annual principal payments            
Variable rate basis   3.00%        
Interest rate margin (as a percent)   1.00%        
New Markets Tax Credit Transaction            
Credit Facilities            
Long-term debt, net of current maturities   $ 2,600        
Credit facility            
Future annual principal payments            
Maximum borrowing capacity $ 20,000 $ 20,000 $ 10,000      
Maximum borrowing capacity of the face value of eligible A/R (as a percent) 85.00%   85.00%      
Maximum percentage of book value of inventories that may be financed 50.00%   50.00%      
Maximum borrowing capacity of the face value of machinery, equipment and property that may be financed   50.00%        
Variable rate basis one month LIBOR          
Annual unused line fee (as a percent) 0.50%          
Interest rate margin (as a percent) 3.25%          
Outstanding indebtedness under the Credit Facility   $ 0        
Current borrowing capacity         17,226  
Term Loan            
Future annual principal payments            
Debt Instrument, Face Amount           $ 5,000
Interest rate margin (as a percent)   3.50%        
Term loan amortization   $ 60        
Term loans and notes payable            
Credit Facilities            
Long-term debt, gross   2,600     5,399  
Future annual principal payments            
Term loans and notes payable   $ 2,600     $ 5,399