Long-term Debt - Schedule of Maturities of Long Term Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Sep. 30, 2015
Schedule Of Maturities Of Long Term Debt [Line Items]
Senior Debt Principal	$ 29,000
Deferred Financing Costs	(386)
Total	28,614	$ 32,654
2017 [Member]
Schedule Of Maturities Of Long Term Debt [Line Items]
Senior Debt Principal	4,000
Deferred Financing Costs	(86)
Total	3,914
2018 [Member]
Schedule Of Maturities Of Long Term Debt [Line Items]
Senior Debt Principal	4,000
Deferred Financing Costs	(86)
Total	3,914
2019 [Member]
Schedule Of Maturities Of Long Term Debt [Line Items]
Senior Debt Principal	4,000
Deferred Financing Costs	(86)
Total	3,914
2020 [Member]
Schedule Of Maturities Of Long Term Debt [Line Items]
Senior Debt Principal	4,000
Deferred Financing Costs	(86)
Total	3,914
2021 [Member]
Schedule Of Maturities Of Long Term Debt [Line Items]
Senior Debt Principal	13,000
Deferred Financing Costs	(42)
Total	$ 12,958