Note 10 - Accrued Liabilities - Noncurrent (Details) - USD ($)	Dec. 31, 2019	Sep. 30, 2019
Deferred rent		$ 1,881,387
Deferred extended warranty revenue	490,795
Total	490,794	2,432,272
Deferred Revenue [Member]
Deferred extended warranty revenue	$ 490,795	$ 550,885

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

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For a classified balance sheet, the cumulative difference between the rental income or payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, more than one year after the balance sheet date.

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