Net Loss Per Share (Tables)
 12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings (Loss) per Share The following table sets forth the computation of basic and diluted loss per share (in thousands, except share data):
 Year ended December 31,
 20192018
Numerator (both basic and diluted):
Loss from continuing operations$(91,401) $(116,736) 
Loss from discontinued operations, net of tax(90,497) (27,861) 
Net loss available to common stockholders$(181,898) $(144,597) 
Denominator:
Denominator for basic and diluted earnings per share26,141,414  26,467,417  
Basic and diluted loss per common share from continuing operations:$(3.50) $(4.41) 
Basic and diluted loss per common share from discontinued operations:(3.46) (1.05) 
Basic and diluted loss per common share available to stockholders:$(6.96) $(5.46) 
Schedule of Potentially Dilutive Instruments
The following shows potentially dilutive instruments:
Year ended December 31,
 20192018
Warrants2,066,576  2,066,576  
Unvested restricted stock units373,754  29,806  
Stock options306,506  595,736  
      Total2,746,836  2,692,118