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Note 10 - Accrued Liabilities - Noncurrent (Details) - USD ($)	Dec. 31, 2018	Sep. 30, 2018
Deferred rent	$ 1,832,884	$ 1,663,058
Deferred extended warranty revenue	83,255
Total	1,916,139	1,739,430
Deferred Revenue [Member]
Deferred extended warranty revenue	$ 83,255	$ 76,372

X

- Definition

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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- Definition

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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