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Commitments and Contingencies (Detail) - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Rent Expense (in Dollars)	$ 1.0	$ 1.2
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	201

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- References

No definition available.

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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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No definition available.

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- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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