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Note 10 - Accrued Liabilities - Noncurrent (Details) - USD ($)	Mar. 31, 2019	Sep. 30, 2018
Deferred rent	$ 1,937,175	$ 1,663,058
Deferred extended warranty revenue	146,043
Total	2,083,218	1,739,430
Deferred Revenue [Member]
Deferred extended warranty revenue	$ 146,043	$ 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
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X

- 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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.

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