Quarterly report pursuant to Section 13 or 15(d)

Other Liabilities (Detail)

v2.4.0.6
Other Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jan. 31, 2013
Jul. 31, 2012
Jan. 31, 2013
Clinical Labs [Member]
Capital Lease Obligation [Member]
Jan. 31, 2013
Clinical Labs [Member]
Installment Loans [Member]
Capital Lease Obligations Incurred     $ 768  
Long-term Debt       115
Capital Leases, Future Minimum Payments, Interest Included in Payments     109  
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments     757 289
Other Liabilities, Current $ 281 $ 118 $ 149 $ 132