Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v3.19.3
Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Accounts receivable, allowances $ 34 $ 34
Preferred stock, par value (usd per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (shares) 5,000,000 5,000,000
Preferred stock, shares issued (shares) 0 0
Preferred stock, shares outstanding (shares) 0 0
Common stock, par value (usd per share) $ 0.0001 $ 0.0001
Common stock, shares authorized (shares) 100,000,000 100,000,000
Common stock, shares, issued (shares) 58,386,000 54,065,000
Common stock, shares outstanding (shares) 58,386,000 54,065,000