Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Option activity and Unrecognized expense (Details)

v3.20.1
Stockholders' Equity - Option activity and Unrecognized expense (Details) - Options - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Options rollforward      
Options, Outstanding, Number, Beginning Balance 1,241,675 1,241,675  
Options granted 0 0  
Options, Outstanding, Number, Ending Balance 1,241,675 1,241,675 1,241,675
Options vested and exercisable, Ending Balance 388,022    
Options exercise price      
Weighted Average Exercise Price, Beginning $ 5.73 $ 5.73  
Weighted Average Exercise Price, Options granted 0.00 0.00  
Weighted Average Exercise Price, Ending 5.73 $ 5.73 $ 5.73
Weighted Average Exercise Price, Options vested and exercisable $ 5.73    
Weighted Average Remaining Contractual Life, Options outstanding (in years) 7 years 3 months 22 days 8 years 3 months 22 days 9 years 3 months 22 days
Weighted Average Remaining Contractual Life, Options vested and exercisable (in years) 7 years 3 months 22 days    
Unrecognized share-based compensation $ 0.7    
Unrecognized compensation recognition period 1 year 2 months 12 days    
Estimated forfeiture rate, options (as a percent) 0.00%