Commitments and Contingencies Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Unrecorded Unconditional Purchase Obligation [Line Items]
Operating Leases, Future Minimum Payments Due	$ 552,000
Operating Leases, Future Minimum Payments Due, Next Twelve Months	430,000
Operating Leases, Future Minimum Payments, Due in Two Years	101,000
Operating Leases, Future Minimum Payments, Due in Three Years	21,000
Business Acquisition, Contingent Consideration, Potential Cash Payment	1,600,000
Postemployment Benefits Liability, Noncurrent	1,100,000
Deferred Compensation Arrangement with Individual, Compensation Expense	109,000	89,000
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance	16,320
Fair value of deferred compensation shares held in treasury until retirement or involuntary separation	$ 63,000