Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Unaudited) (Parenthetical)

v3.19.1
Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Statement Of Financial Position [Abstract]    
Allowance for accounts receivable $ 869 $ 850
Preferred stock, par value $ 0.001 $ 0.001
Preferred stock, shares authorized 1,000 1,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 40,000 40,000
Common stock, shares issued 21,294 21,072
Common stock, shares outstanding 21,294 21,072