Note 2 - Commitments - Supplement Information Related to Leases (Details) $ in Thousands	12 Months Ended
Sep. 30, 2020 USD ($)
Operating lease costs	$ 1,383
Variable operating lease costs	37
Total operating lease cost	1,420
Amortization of right-of-use assets	186
Interest on lease liabilities	21
Total finance lease cost	$ 207

Amount of impairment loss from right-of-use asset from finance lease.

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Amount of interest expense on finance lease liability.

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Amount of amortization expense attributable to right-of-use asset from finance lease.

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Amount of lease cost recognized by lessee for lease contract.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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