Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Stock Based Compensation - Plans and options (Details)

v3.19.1
Stockholders' Equity and Stock Based Compensation - Plans and options (Details) - shares
Dec. 31, 2018
Jun. 30, 2018
May 31, 2018
Dec. 31, 2017
Stock-based compensation        
Options reserved for future issuance (in shares) 0      
2012 Plan        
Stock-based compensation        
Number of shares of common stock initially available for award   1,000,000 600,000  
Options outstanding 0     0
Options exercisable 0     0
Options reserved for future issuance (in shares) 530,022