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Note 18 - Net (Loss) Income Per Share - Basic and Diluted Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Net (loss) income	$ (619)	$ 620
Basic (loss) income per share (in dollars per share)	$ (0.02)	$ 0.02
Diluted (loss) income per share (in dollars per share)	$ (0.02)	$ 0.02
Weighted average shares outstanding - basic (in shares)	33,573,755	32,977,765
Assumed exercise of dilutive options (in shares)		732,855
Weighted average shares outstanding - diluted (in shares)	33,573,755	33,710,620
Antidilutive securities (in shares)	3,057,018	708,727
Share-based Payment Arrangement, Option [Member]
Antidilutive securities (in shares)	2,754,281	708,727
Restricted Stock Units (RSUs) [Member]
Antidilutive securities (in shares)	302,737

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