Quarterly report pursuant to Section 13 or 15(d)

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
CONDENSED CONSOLIDATED BALANCE SHEETS    
Accounts receivable allowance for doubtful accounts $ 193 $ 140
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 170,000,000 170,000,000
Common stock, shares issued 19,794,270 19,767,605
Common stock, shares outstanding 19,057,195 18,660,218
Treasury stock at par 737,075,000 1,107,387