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Note 4 - Commitments (Detail) - Rental Expenses (USD $)	12 Months Ended
Note 4 - Commitments (Detail) - Rental Expenses (USD $)	Sep. 30, 2012
Operating Leases Future Minimum Payments Due Current [Member]
Obligations under operating leases	$ 410,000
Operating Leases Future Minimum Payments Due In Two Years [Member]
Obligations under operating leases	289,000
Operating Leases Future Minimum Payments Due There After [Member]
Obligations under operating leases	17,000
Operating Leases Future Minimum Payments [Member]
Obligations under operating leases	$ 716,000

This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes.

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