Concentrations of Credit Risk and Fair Value of Financial Instruments (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013
Concentration Risk [Line Items]
Concentration Risk, Percentage	100.00%	100.00%
Percentage Of Third Party Gross Receivables	90.00%
Cash, Uninsured Amount	$ 15.2
Credit Concentration Risk [Member] | Major Customers One [Member] | Revenue [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	18.00%	22.00%
Credit Concentration Risk [Member] | Third Party Payer One [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	18.00%	16.00%
Customer Concentration Risk [Member] | Revenue [Member] | Surgeons Five [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	84.00%
Customer Concentration Risk [Member] | Revenue [Member] | Surgeons Seven [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage		90.00%
Customer Concentration Risk [Member] | Major Customers Two [Member] | Revenue [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	12.00%	11.00%
Customer Concentration Risk [Member] | Major Customers Three [Member] | Revenue [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	10.00%	11.00%
Customer Concentration Risk [Member] | Major Customers Four [Member] | Revenue [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	10.00%