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Note 19 - Capital Stock (Details Textual) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 28, 2004 $ / shares | Dec. 31, 2020 $ / shares $ / shares | Dec. 31, 2018 $ / shares | Dec. 31, 2020 USD ($)
Common Stock, Dividends, Per Share, Declared (in dollars per share) |  | $ 0.10 | $ 0.10 |
Share Price (in CAD per share) |  | $ 113.28 |  |
Contingent Liabiilty upon Sale of Control | $ |  |  |  | $ 393,850
Subordinate Voting Shares Conversion Rate [Member] |  |  |  |
Payment Formula Base Price, Second Payment (in CAD per share) | $ 6.472 |  |  |
Chief Executive Officer [Member] |  |  |  |
Percentage Payment of Shares Outstanding, First Payment | 5.00% |  |  |
Payment Formula Base Price, First Payment (in CAD per share) | $ 3.324 |  |  |
Percentage Payment of Shares Outstanding, Second Payment | 5.00% |  |  |
Subordinate Voting Shares [Member] |  |  |  |
Number of Votes for Subordinate Voting Shares |  | 1 |  |
Multiple Voting Shares [Member] |  |  |  |
Number of Votes for Multiple Voting Shares |  | 20 |  |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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