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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Statement - Condensed Consolidated Balance Sheets (Parenthetical) [Line Items]    
Allowance for accounts receivable $ 64 $ 49
Capital stock, par value $ 0.01 $ 0.01
Capital stock, shares authorized 26,667 26,667
Preferred stock, shares authorized 16,667 16,667
Preferred stock, shares issued      
Preferred stock, shares outstanding      
Common stock, shares authorized 10,000 10,000
Common stock, shares issued 5,886 5,004
Common stock, shares outstanding 5,886 5,004