Fair Value Accounting (Other Disclosure) (Details) (USD $)	6 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Apr. 17, 2015	Sep. 30, 2014	Oct. 22, 2014	Apr. 16, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of outstanding warrants (in shares)	400,001			400,001
Digital Products Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Asset sale, promissory note, principal amount					$ 16,000,000
Proceeds from sale of business	1,500,000	0
Asset sale, promissory note, interest rate, year one					0.05
Asset sale, promissory note, interest rate, year two					0.13
Asset purchase agreement, selling price					17,500,000
Subsequent Event | Digital Products Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Asset sale, promissory note, principal amount						15,500,000
Proceeds from sale of business			$ 15,700,000