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Note 14 - Acquisitions - Pro Forma Information (Details) - Woorank and Hawk Search [Member] - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
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Jun. 30, 2021 | Jun. 30, 2021
Revenue | $ 4,412 | $ 13,342
Net income (loss) attributable to common shareholders - basic | (3,605) | (5,841)
Net income (loss) attributable to common shareholders - diluted | $ (3,605) | $ (5,841)
Net income (loss) per share attributable to common shareholders: |  |
Basic (in dollars per share) | $ (0.61) | $ (1.14)
Diluted (in dollars per share) | $ (0.61) | $ (1.14)
Weighted average common shares outstanding - basic (in shares) | 5,939,021 | 5,117,586
Weighted average common shares outstanding - diluted (in shares) | 5,939,021 | 5,117,586

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