Note Receivable (Notes)	3 Months Ended
Dec. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]
Investments in Variable Interest Entity	In 2012, the Company provided a strategic partner (the “Borrower”) a loan of $3.0 million to support the Borrower's future product development and other working capital requirements. The loan bears interest at a rate of 9% and the outstanding principal and interest was payable in May 2015. The Company also received a warrant to purchase the Borrower's common stock in the event of an equity offering by the Borrower and certain other rights related to conversion of the loan, first refusal to acquire the Borrower and a redemption premium. The loan was secured by a security agreement granting the Company a first-priority security interest in all of the assets of the Borrower. The Company determined that the level of equity investment at risk was not sufficient for the entity to finance its activities without additional financial support and as a result, represented a variable interest entity. However, the Company does not have the power to direct the activities that most significantly impact the Borrower's economic performance and would not absorb the majority of the expected losses from the Borrower, and therefore does not qualify as the primary beneficiary. The Company has no future contractual funding commitments to the Borrower and as a result, the Company's exposure to loss was limited to the outstanding principal and interest under the loan. During the third quarter of fiscal year 2014, the Borrower informed the Company of its intent to secure additional funding from an investment program funded by the Commonwealth of Massachusetts designed to support early-stage companies. In connection with the Borrower’s efforts to secure additional financing, the Company agreed to subordinate its security interest in the assets of the Borrower to the new lender. Additionally, the Company agreed to extend the due date of its loan by approximately 5 years, to September 2019, in order to coincide with the due date of the new loan. The amended loan has a stated interest rate of 10%. In connection with its efforts to secure additional financial support, the Borrower developed revised assumptions about its future cash flows. Based on the information provided by the Borrower, and the subordination to the new lender, the Company determined it was probable that it would not recover all amounts due from the loan and recorded an impairment charge of $2.6 million in the third quarter of fiscal year 2014. The impairment charge, which included the warrant write-off, was recorded in the Consolidated Statements of Operations in selling, general and administrative expenses. The fair value of the loan was determined by considering the fair value of the collateral using valuation techniques, principally the discounted cash flow method, less amounts committed by the new lender. The observable inputs used in the Company's analysis were limited primarily to the discount rate, which was based on a rate commensurate with the risks and uncertainties of the Borrower. As a result, the fair value of the loan at December 31, 2014, which the Company currently estimates to be $1.0 million, could be different under different conditions or different assumptions, including the varying assumptions regarding future cash flows of the Borrower or discount rates.

In 2012, the Company provided a strategic partner (the “Borrower”) a loan of $3.0 million to support the Borrower's future product development and other working capital requirements. The loan bears interest at a rate of 9% and the outstanding principal and interest was payable in May 2015. The Company also received a warrant to purchase the Borrower's common stock in the event of an equity offering by the Borrower and certain other rights related to conversion of the loan, first refusal to acquire the Borrower and a redemption premium. The loan was secured by a security agreement granting the Company a first-priority security interest in all of the assets of the Borrower.

The Company determined that the level of equity investment at risk was not sufficient for the entity to finance its activities without additional financial support and as a result, represented a variable interest entity. However, the Company does not have the power to direct the activities that most significantly impact the Borrower's economic performance and would not absorb the majority of the expected losses from the Borrower, and therefore does not qualify as the primary beneficiary. The Company has no future contractual funding commitments to the Borrower and as a result, the Company's exposure to loss was limited to the outstanding principal and interest under the loan.

During the third quarter of fiscal year 2014, the Borrower informed the Company of its intent to secure additional funding from an investment program funded by the Commonwealth of Massachusetts designed to support early-stage companies. In connection with the Borrower’s efforts to secure additional financing, the Company agreed to subordinate its security interest in the assets of the Borrower to the new lender. Additionally, the Company agreed to extend the due date of its loan by approximately 5 years, to September 2019, in order to coincide with the due date of the new loan. The amended loan has a stated interest rate of 10%.

In connection with its efforts to secure additional financial support, the Borrower developed revised assumptions about its future cash flows. Based on the information provided by the Borrower, and the subordination to the new lender, the Company determined it was probable that it would not recover all amounts due from the loan and recorded an impairment charge of $2.6 million in the third quarter of fiscal year 2014. The impairment charge, which included the warrant write-off, was recorded in the Consolidated Statements of Operations in selling, general and administrative expenses.

The fair value of the loan was determined by considering the fair value of the collateral using valuation techniques, principally the discounted cash flow method, less amounts committed by the new lender. The observable inputs used in the Company's analysis were limited primarily to the discount rate, which was based on a rate commensurate with the risks and uncertainties of the Borrower. As a result, the fair value of the loan at December 31, 2014, which the Company currently estimates to be $1.0 million, could be different under different conditions or different assumptions, including the varying assumptions regarding future cash flows of the Borrower or discount rates.