Discontinued Operations - Assets and Liabilities of Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Sep. 30, 2013
Discontinued Operations And Disposal Groups [Abstract]
Other current assets	$ 85	$ 46
Current assets of discontinued operations	85	46
Total assets of discontinued operations	85	46
Other current liabilities payable	75	139
Current liabilities of discontinued operations	75	139
Total liabilities of discontinued operations	$ 75	$ 139