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Note 4 - PistolStar Inc. Acquisition - Pro Forma Information (Details) - PistolStar [Member] - USD ($) | 3 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019
Revenue | $ 725,779 | $ 1,652,678
Net loss | $ (1,580,349) | $ (5,045,889)
Basic and diluted net loss per share (in dollars per share) | $ (0.08) | $ (0.28)
Weighted average number of ordinary shares used in computing basic and diluted loss per share (in shares) | 20,864,866 | 18,030,939

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