Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.3
Stockholders' Equity - Option activity and Unrecognized expense (Details) - Options - USD ($)
$ / shares in Units, $ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Options rollforward    
Options, Outstanding, Number, Beginning Balance 1,241,675  
Options granted 0  
Options, Outstanding, Number, Ending Balance 1,241,675 1,241,675
Options vested and exercisable, Ending Balance 349,219  
Options exercise price    
Weighted Average Exercise Price, Beginning $ 5.73  
Weighted Average Exercise Price, Options granted 0  
Weighted Average Exercise Price, Ending 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 6 months 22 days 8 years 3 months 22 days
Weighted Average Remaining Contractual Life, Options vested and exercisable (in years) 7 years 6 months 22 days  
Unrecognized share-based compensation $ 0.9  
Unrecognized compensation recognition period 1 year 2 months 12 days  
Number of shares excluded from unrecognized compensation expense 155,209