Commitments and Contingencies (Details) (USD $)	0 Months Ended	9 Months Ended
	Nov. 05, 2013	Apr. 30, 2015	Jun. 30, 2014	May 31, 2015
Minimum commitments under noncancelable operating leases
Remaining fiscal year		$ 1,319,000
2016		4,780,000
2017		3,813,000
2018		2,650,000
2019		1,844,000
Thereafter		3,694,000
Total		18,100,000
Total contractual obligations
Remaining fiscal year		3,210,000
2016		13,345,000
2017		7,018,000
2018		5,070,000
2019		95,286,000
Thereafter		5,587,000
Total		129,516,000
Jet Prep Ltd.
Total contractual obligations
Contingent consideration	2,490,000	729,000
Assumed contingent obligation		1,131,000
Period over which potential cash contingent consideration is payable	7 years
Puri Core International Limited
Total contractual obligations
Contingent consideration		914,000	1,414,000
Compensation agreements
Other commitments
Remaining fiscal year		1,232,000
2016		6,236,000
2017		1,082,000
2018		206,000
2019		206,000
Thereafter		292,000
Total		9,254,000
Contingent consideration
Other commitments
2018		135,000
2019		360,000
Thereafter		621,000
Total		1,116,000
Contingent consideration | Jet Prep Ltd.
Total contractual obligations
Contingent consideration		729,000
Discount rate of potential payments (as a percent)		12.60%
Contingent consideration | Puri Core International Limited
Total contractual obligations
Assumed contingent obligation		914,000
Assumed contingent liability
Other commitments
2016		1,000
2017		19,000
2018		93,000
2019		188,000
Thereafter		965,000
Total		1,266,000
Assumed contingent liability | Jet Prep Ltd.
Total contractual obligations
Discount rate of potential payments (as a percent)		2.50%
Assumed contingent obligation		1,131,000
Contingent guaranteed obligation
Other commitments
Remaining fiscal year		138,000
2016		396,000
2017		209,000
2018		155,000
2019		142,000
Total		1,040,000
Contingent guaranteed obligation | Puri Core International Limited
Total contractual obligations
Contingent consideration		914,000
Discount rate of potential payments (as a percent)		10.10%
Other long-term obligations
Other commitments
Remaining fiscal year		100,000
2016		303,000
2017		266,000
2018		202,000
2019		96,000
Thereafter		15,000
Total		982,000
Expected interest payments under the credit facility
Other commitments
Remaining fiscal year		421,000
2016		1,629,000
2017		1,629,000
2018		1,629,000
2019		950,000
Total		6,258,000
Credit Agreement
Long term debt
2019		91,500,000
Total		$ 91,500,000		$ 87,500,000
Credit Agreement | Weighted average
Total contractual obligations
Interest rate (as a percent)		1.78%