v3.8.0.1
CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Allowance for doubtful accounts $ 143 $ 152
Preferred stock, shares authorized (in shares)   7,000,000
Preferred stock, shares issued (in shares)   5,446,978
Preferred stock, shares outstanding (in shares) 0  
Common stock, par value (in dollars per share) $ 0.00025 $ 0.00025
Common stock, shares authorized (in shares) 50,000,000 12,000,000
Common stock, shares issued (in shares) 12,621,781 2,421,599
Common stock, shares outstanding (in shares) 12,621,781 2,421,599
Series A    
Preferred stock, par value (in dollars per share) $ 0.00025 $ 0.00025
Preferred stock, cumulative preferred dividends $ 0 $ 7,439
Preferred stock, shares authorized (in shares) 0 1,000,000
Preferred stock, shares issued (in shares) 0 1,000,000
Preferred stock, shares outstanding (in shares) 0 1,000,000
Series B    
Preferred stock, par value (in dollars per share) $ 0.00025 $ 0.00025
Preferred stock, cumulative preferred dividends $ 0 $ 8,864
Preferred stock, shares authorized (in shares) 0 6,000,000
Preferred stock, shares issued (in shares) 0 4,446,978
Preferred stock, shares outstanding (in shares) 0 4,446,978