Share-Based Compensation - Fair Value assumptions for 2009 stock option plan (Details) - USD ($) |
12 Months Ended | ||
---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2016 |
|
Share-based compensation | |||
Share-based compensation expense | $ 200,000 | $ 203,000 | $ 251,000 |
2009 Plan | |||
Share-based compensation | |||
Share-based compensation expense | 0 | 0 | 68,000 |
2009 Plan | Non-employee director | |||
Share-based compensation | |||
Share-based compensation expense | 200,000 | $ 203,000 | $ 178,000 |
2009 Plan | Options | |||
Share-based compensation | |||
Unrecognized compensation cost, related to non-vested stock options | $ 0 | ||
2009 Plan | Options | Minimum | |||
Share-based compensation | |||
Vesting period | 3 years | ||
2009 Plan | Options | Maximum | |||
Share-based compensation | |||
Expiration term | 10 years | ||
Vesting period | 5 years |