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Note 16 - Income Tax (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | 2020 |  | 2019
Income tax expense using combined statutory rate of 26.5% (2019 - 26.5%, 2018 - 26.5%) |  | $ | 38,545 |  |  | $ | (53,128 | )
Permanent differences |  |  | 820 |  |  |  | 1,566 |
Tax effect of flow through entities |  |  | - |  |  |  | (307 | )
Adjustments to tax liabilities for prior periods |  |  | 882 |  |  |  | (328 | )
Non-deductible stock-based compensation |  |  | 3,081 |  |  |  | 2,153 |
Excess tax benefits related to stock-based compensation |  |  | - |  |  |  | (3,672 | )
Foreign, state and provincial tax rate differential |  |  | (7,463 | ) |  |  | (2,402 | )
Settlement of long-term incentive arrangement |  |  | - |  |  |  | 83,310 |
Other taxes |  |  | - |  |  |  | (45 | )
Provision for income taxes as reported |  | $ | 35,865 |  |  | $ | 27,147 |
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
|  | 2020 |  | 2019
Canada |  | $ | 19,166 |  |  | $ | (323,100 | )
United States |  |  | 126,289 |  |  |  | 122,616 |
Total |  | $ | 145,455 |  |  | $ | (200,484 | )
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | 2020 |  | 2019
Current |  |  |  |  |  |  |  |
Canada |  | $ | 3,300 |  |  | $ | 369 |
United States |  |  | 49,759 |  |  |  | 33,978 |
|  |  | 53,059 |  |  |  | 34,347 |
Deferred |  |  |  |  |  |  |  |
Canada |  |  | 1,350 |  |  |  | (1,620 | )
United States |  |  | (18,544 | ) |  |  | (5,580 | )
|  |  | (17,194 | ) |  |  | (7,200 | )
Total |  | $ | 35,865 |  |  | $ | 27,147 |
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | 2020 |  | 2019
Deferred income tax assets |  |  |  |  |  |  |  |
Loss carry-forwards |  | $ | 1,441 |  |  | $ | 2,788 |
Expenses not currently deductible |  |  | 39,415 |  |  |  | 23,283 |
Stock-based compensation |  |  | - |  |  |  | 749 |
Allowance for doubtful accounts |  |  | 5,535 |  |  |  | 3,860 |
Inventory and other reserves |  |  | 865 |  |  |  | 3,024 |
|  |  | 47,256 |  |  |  | 33,704 |
Deferred income tax liabilities |  |  |  |  |  |  |  |
Depreciation and amortization |  |  | 83,676 |  |  |  | 86,072 |
Basis differences of partnerships and other entities |  |  | 769 |  |  |  | 793 |
Prepaid and other expenses deducted for tax purposes |  |  | 1,505 |  |  |  | 1,276 |
|  |  | 85,950 |  |  |  | 88,141 |
Net deferred income tax asset (liability) before valuation allowance |  |  | (38,694 | ) |  |  | (54,437 | )
Valuation allowance |  |  | 603 |  |  |  | 965 |
Net deferred income tax asset (liability) |  | $ | (39,297 | ) |  | $ | (55,402 | )
Summary of Operating Loss Carryforwards [Table Text Block] |
|  | Loss carry forward |  | Gross losses not recognized |  | Net
|  | 2020 |  | 2019 |  | 2020 |  | 2019 |  | 2020 |  | 2019
Canada |  | $ | 1,364 |  |  | $ | 4,430 |  |  | $ | - |  |  | $ | - |  |  | $ | 1,364 |  |  | $ | 4,430 |
United States |  |  | 13,733 |  |  |  | 18,615 |  |  |  | 11,417 |  |  |  | 15,840 |  |  |  | 2,316 |  |  |  | 2,775 |

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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