Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.19.1
Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Statement of Financial Position [Abstract]    
Allowance of trade accounts receivable $ 56 $ 63
Convertible preferred stock, par value $ 0.01 $ 0.01
Convertible preferred stock, shares authorized 130,000,000 130,000,000
Convertible preferred stock, shares issued 4,074 0
Convertible preferred stock, shares outstanding 4,074 0
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 250,000,000 250,000,000
Common stock, shares issued 21,793,641 3,028,065
Common stock, shares outstanding 21,793,641 3,028,065