Note 4 - Business Combination (Details Textual) $ / shares in Units, $ in Thousands, $ in Millions		3 Months Ended				6 Months Ended
	Oct. 02, 2020 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2021 USD ($) $ / shares shares	Mar. 31, 2021 CAD ($) shares	Mar. 31, 2020 USD ($)
Share Price (in dollars per share) | $ / shares	$ 5.98	$ 6.69				$ 6.69
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable						$ 3,431
Assets Acquisition of Amika Mobile Corporation [Member]
Asset Acquisition, Holdback Liability Deposited							$ 1
Asset Acquisition, Adjustments from Purchase Holdback Liability, Period (Year)						3 years	3 years
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares, Each Anniversaries (in shares) | shares	191,267					191,267	191,267
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares	573,801					573,801	573,801
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 3,431					$ 3,431
Business Combination, Acquisition Related Costs						$ 264
Assets Acquisition of Amika Mobile Corporation [Member] | Selling, General and Administrative Expenses [Member]
Business Combination, Acquisition Related Costs		$ 22	$ 10	$ 132	$ 100