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Debt and Shareholders' Equity (Details Narrative) (USD $)
In Thousands, except Share data, unless otherwise specified
1 Months Ended 3 Months Ended 9 Months Ended
Apr. 30, 2013
Apr. 30, 2012
Sep. 30, 2014
Sep. 30, 2014
Dec. 31, 2013
Apr. 25, 2013
Apr. 05, 2012
Debt And Shareholders Equity Details Narrative              
Outstanding borrowings under revolving loan agreement     $ 30,344 $ 30,344 $ 22,912    
Credit facility borrowing capacity           40,000 30,000
Interest rate of LIBOR plus percentage 1.75% 1.75%          
Credit facility interest rate Interest rate of LIBOR plus 1.75%            
Credit facility expiration date Apr. 05, 2017            
Covenant terms and compliance       Under the amended loan agreement, the Company continues to be required to maintain specific amounts of tangible net worth, a debt/net worth ratio, and a fixed charge coverage ratio. At September 30, 2014, the Company was in compliance with these covenants.      
Common stock issued upon exercise of employee stock options (in shares)     61,325 74,075      
Cash received upon exercise of employee stock options     $ 717 $ 890