XML 54 R44.htm IDEA: XBRL DOCUMENT v3.19.1
Stock-based Compensation, Equity Grants, and Warrants - Stock Options Outstanding, Vested and Unvested (Details) - shares
shares in Thousands
Mar. 31, 2019
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Vested and exercisable (in shares) 1,300 1,335
Unvested (in shares) 834 799
Option outstanding (in shares) 2,134 2,134