Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)

v3.19.1
Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Allowance of trade accounts receivable $ 92 $ 56
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 4,074
Convertible preferred stock, shares outstanding 4,074 4,074
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 21,793,641
Common stock, shares outstanding 21,793,641 21,793,641