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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 187 $ 186
Common stock par value $ 0.001 $ 0.001
Common stock shares authorized 50,000,000 50,000,000
Common stock shares issued 8,734,917 8,812,644
Common stock shares outstanding 8,734,917 8,812,644