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Note 10 - Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2013
Income Tax Disclosure [Abstract] |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | Year ended December 31, 2013 |  |  | Year ended December 31, 2012 |  |  | Year ended December 31, 2011 |
Income for the year before provision for income taxes |  | $ | 5,799,803 |  |  | $ | 6,428,298 |  |  | $ | 3,450,610 |
Computed expected tax expense |  | $ | 1,971,933 |  |  | $ | 2,185,621 |  |  | $ | 1,173,207 |
Increase (reduction) in income tax expense resulting from: |  |  |  |  |  |  |  |  |  |  |  |
State income taxes |  |  | 14,500 |  |  |  | 16,071 |  |  |  | 8,627 |
Permanent differences, including foreign exchange |  |  | 13,700 |  |  |  | 21,728 |  |  |  | 13,700 |
Investment tax credits recovered |  |  | (115,455 | ) |  |  | (106,941 | ) |  |  | (41,833 | )
Other, including alternative minimum tax and adjustments to opening deferred tax assets |  |  | (265,339 | ) |  |  | (112,323 | ) |  |  | (218,252 | )
Change in beginning of the year balance of the valuation allowance allocated to income tax expense |  |  | — |  |  |  | — |  |  |  | (3,655,070 | )
Provision for (recovery of) income taxes |  | $ | 1,619,339 |  |  | $ | 2,004,156 |  |  | $ | (2,719,621 | )
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | December 31, 2013 |  |  | December 31, 2012 |
Deferred tax assets: |  |  |  |  |  |  |  |
Deferred revenue |  | $ | 5,300,868 |  |  | $ | 5,429,220 |
Losses |  |  | 290,714 |  |  |  | — |
Foreign tax credit |  |  | 1,914,090 |  |  |  | — |
Amortization |  |  | 69,169 |  |  |  | 541,242 |
Accruals, including foreign exchange and other |  |  | (1,123,278 | ) |  |  | — |
Total gross deferred tax assets |  |  | 6,451,563 |  |  |  | 5,970,462 |
Less valuation allowance |  |  | — |  |  |  | — |
Net deferred tax assets |  | $ | 6,451,563 |  |  | $ | 5,970,462 |
Deferred income tax asset, current portion |  |  | 1,081,526 |  |  |  | — |
Deferred income tax asset, long-term portion |  |  | 5,370,037 |  |  |  | 5,970,462 |
|  | $ | 6,451,563 |  |  | $ | 5,970,462 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Accruals, including foreign exchange and other |  | $ | — |  |  | $ | (914,429 | )
Limited life intangible assets |  |  | (301,500 | ) |  |  | (394,100 | )
Indefinite life intangible assets |  |  | (4,840,000 | ) |  |  | (4,840,000 | )
Total deferred tax liabilities |  |  | (5,141,500 | ) |  |  | (6,148,529 | )
Less deferred tax liability, current portion |  |  | — |  |  |  | (914,429 | )
Deferred tax liability, long-term portion |  | $ | (5,141,500 | ) |  | $ | (5,234,100 | )
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] |
|  | Total Gross Unrecognized Tax Benefits |
Balance as at December 31, 2012 |  | $ | 382,000 |
Decrease in uncertain tax benefits of prior years |  |  | (265,000 | )
Balance as at December 31, 2013 |  | $ | 117,000 |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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