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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
CONDENSED CONSOLIDATED BALANCE SHEETS    
Trade receivables, allowance for doubtful accounts (in dollars) $ 860 $ 802
Common stock, par value (in dollars per share)      
Common stock, authorized shares 50,000 50,000
Common stock, shares issued 9,241 9,091
Common stock, shares outstanding 9,241 9,091
Preferred stock, par value (in dollars per share) $ 1.00 $ 1.00
Preferred stock, authorized shares 5,000 5,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0