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Note 4 - Business Combinations (Details Textual) $ / shares in Units, $ in Thousands, $ in Millions |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Jun. 07, 2021 USD ($) $ / shares shares | Oct. 02, 2020 USD ($) $ / shares shares | Oct. 02, 2020 CAD ($) shares | Jun. 30, 2021 USD ($) $ / shares shares | Mar. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2021 USD ($) $ / shares | Jun. 30, 2020 USD ($)
Share Price (in dollars per share) | $ / shares | $ 5.05 | $ 5.98 |  | $ 5.48 |  |  |  |  | $ 5.48 |
Zonehaven, Inc [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares | 2,165,824 |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable | $ 10,938 |  |  |  |  |  |  |  | $ 10,938 | $ (0)
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  | 100 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year) | 6 years 8 months 12 days |  |  |  |  |  |  |  |  |
Zonehaven, Inc [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  | $ 98 | $ 2 |  |  |  |  |
Assets Acquisition of Amika Mobile Corporation [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares |  | 573,801 | 573,801 | 452,098 |  |  |  |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable |  | $ 3,431 |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  | $ 264 |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year) |  | 7 years | 7 years |  |  |  |  |  |  |
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 |  |  |  |  |  |  |
Assets Acquisition of Amika Mobile Corporation [Member] | Former Owner of Amika Mobile [Member] |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Acquisitions (in shares) | shares |  |  |  | 121,703 |  |  |  |  |  |
Assets Acquisition of Amika Mobile Corporation [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  | $ 22 | $ 10 | $ 132 | $ 100 |  |

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460 + Details
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