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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts on trade accounts receivable $ 228 $ 203
Property and equipment, accumulated depreciation and amortization 4,678 4,861
Intangible assets, accumulated amortization $ 10,492 $ 14,738
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 1,000,000 1,000,000
Preferred stock, shares issued 0 0
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 20,000,000 20,000,000
Common stock, shares issued 15,906,378 15,732,177
Common stock, shares outstanding 15,720,547 15,546,346
Treasury stock, shares 185,831 185,831