Discontinued Operations - Assets and Liabilities of Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Sep. 30, 2013
Discontinued Operations And Disposal Groups [Abstract]
Other current assets	$ 46	$ 46
Current assets of discontinued operations	46	46
Total assets of discontinued operations	46	46
Other current liabilities payable	126	139
Current liabilities of discontinued operations	126	139
Total liabilities of discontinued operations	$ 126	$ 139