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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Current assets    
Allowance for doubtful accounts and discounts & allowances   $ 1,800
Stockholders' equity    
Common stock, par value   $ 0.00
Common stock, shares authorized   40,000
Common stock, shares issued   17,274
Common stock, shares outstanding   16,210
Restated [Member]    
Current assets    
Allowance for doubtful accounts and discounts & allowances $ 1,600  
Stockholders' equity    
Common stock, par value $ 0.00  
Common stock, shares authorized 40,000  
Common stock, shares issued 17,274  
Common stock, shares outstanding 16,171