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Note 6 - Business Acquisitions - Pro Forma Information (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Revenue | $ 15,006,879 | $ 14,071,788 | $ 28,292,104 | $ 29,064,456
Net Income (Loss) Attributable to Common Stockholders | $ 8,569,311 | $ 4,054,775 | $ 93,031,593 | $ (19,806,265)
Basic Net Income (Loss) per Share (in dollars per share) | $ 0.29 | $ 0.16 | $ 3.27 | $ (0.82)
Diluted Net Income (Loss) per Share (in dollars per share) | $ 0.29 | $ 0.16 | $ 3.26 | $ (0.82)
Basic Weighted Average Class A and Class B Common Shares Outstanding (in shares) | 29,421,500 | 24,672,411 | 28,474,872 | 24,091,535
Diluted Weighted Average Class A and Class B Common Shares Outstanding (in shares) | 29,492,765 | 24,716,371 | 28,545,034 | 24,091,535

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- Definition The pro forma weighted average number of shares or units issued and outstanding used in calculating basic earnings per share (EPS). + References No definition available. + Details
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- Definition The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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