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Note 17 - Net Loss Per Share - Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Net loss	$ (1,305)	$ (619)
Basic loss per share (in dollars per share)	$ (0.04)	$ (0.02)
Diluted loss per share (in dollars per share)	$ (0.04)	$ (0.02)
Weighted average shares outstanding - basic (in shares)	36,456,187	33,573,755
Weighted average shares outstanding - diluted (in shares)	36,456,187	33,573,755
Antidilutive securities (in shares)	3,538,981	3,057,018
Share-based Payment Arrangement, Option [Member]
Antidilutive securities (in shares)	2,997,384	2,754,281
Restricted Stock Units (RSUs) [Member]
Antidilutive securities (in shares)	402,469	302,737
Obligation to Issue Common Stock [Member]
Antidilutive securities (in shares)	139,128	0

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1505-109256

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e2646-109256

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