Credit Facilities	6 Months Ended
Credit Facilities	Mar. 31, 2015
Debt Disclosure [Abstract]
Credit Facilities	Credit Facilities On November 11, 2010, we entered into a Credit and Security Agreement (credit facility) with Wells Fargo Bank, National Association ("Wells Fargo"). The credit facility is secured by the Company's assets and is subject to a borrowing base formula based on the Company's eligible accounts receivable, inventory, and machinery and equipment accounts. On December 3, 2014, we entered into a Sixth Amendment to the credit facility, pursuant to which Wells Fargo agreed, to automatically release all encumbrances covering certain of the Company’s assets to be sold pursuant to the Photovoltaics Agreement and the Digital Products Agreement. In addition, on December 10, 2014, upon notice to Wells Fargo of the closing of the transaction contemplated by the Photovoltaics Agreement, the maximum borrowing allowed under the credit facility was reduced from $35.0 million to $15.0 million, and certain other changes to the borrowing base calculations went into effect. As of March 31, 2015, there was no outstanding balance under this credit facility with an interest rate of 3.3% and approximately $1.4 million reserved for five stand-by letters of credit under the credit facility.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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