Discontinued Operations - Additional Information (Detail) - USD ($)		1 Months Ended		3 Months Ended	6 Months Ended	12 Months Ended
	Nov. 17, 2011	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2015	Jun. 30, 2013	Sep. 30, 2015	Sep. 30, 2013
Discontinued Operations [Line Items]
Total consideration received from the Pharma Sale	$ 30,000,000
Restricted time period For competition	5 years
Additional litigation expense within discontinued operations		$ 100,000	$ 300,000	$ 2,500,000		$ 2,500,000
Government Authorities in Alabama [Member]
Discontinued Operations [Line Items]
Payment on settlement of retained liability					$ 325,000
Gain (Loss) on sale of discontinued operations, net of income taxes							$ 1,300,000