Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Authorized Capitalization (Details)

v3.19.1
Stockholders' Equity - Authorized Capitalization (Details) - $ / shares
Dec. 31, 2018
Dec. 31, 2017
Jun. 30, 2017
Equity [Abstract]      
Common stock, shares authorized (shares) 80,000,000 80,000,000  
Common stock, par value (in dollars per share) $ 0.0001 $ 0.0001 $ 0.0001
Preferred stock, shares authorized (shares) 10,000,000 10,000,000  
Preferred stock, par value (in dollars per share) $ 0.0001 $ 0.0001