Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED BALANCE SHEETS (Parenthetical)

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Statement of Financial Position [Abstract]    
Accounts receivable, allowance for doubtful accounts (in dollars) $ 395 $ 205
Common stock, shares authorized 50,000,000 50,000,000
Common stock, shares issued 18,919,000 18,757,000
Common stock, shares outstanding 18,919,000 18,757,000