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Loan Agreement Narrative (Details) (USD $)
3 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Line of Credit Facility [Line Items]        
Document Period End Date   Dec. 31, 2013    
Secured Debt, Current $ 16,078,000 $ 16,078,000 $ 16,127,000  
Credit Facility (Textual) [Abstract]        
Eligible accounts receivables percentage 80.00%      
Eligible accounts receivables past due days   60 days    
Eligible inventory percentage   50.00%    
Eligible inventory expected to be sold period   18 months    
Maximum borrowing amount based on inventory   20,000,000    
Number of rolling quarter to be used in calculating Debt Service Coverage Ratio commencing 2014   rolling four quarters    
Credit Facility, remaining borrowing capacity 17,900,000 17,900,000    
Interest Paid 1,100,000   700,000 700,000
Weighted average interest rate     2.98%  
Document Fiscal Year Focus   2013    
Maximum
       
Credit Facility (Textual) [Abstract]        
Spread on LIBOR   1.85%    
Dividends restricted amount   7,000,000.0    
Minimum
       
Credit Facility (Textual) [Abstract]        
Spread on LIBOR   1.50%    
Revolving Credit Facility [Member]
       
Credit Facility (Textual) [Abstract]        
Credit facility, borrowing capacity     40,000,000  
Letter of Credit [Member]
       
Credit Facility (Textual) [Abstract]        
Credit facility, borrowing capacity     $ 10,000,000