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
Mar. 31, 2019
Dec. 31, 2018
Condensed Consolidated Balance Sheets    
Accounts receivable, allowance for doubtful accounts $ 1,133 $ 1,117
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 39,128,843 38,900,875
Common stock, shares outstanding 39,128,843 38,900,875