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Note 9 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

		Year ended December 31, 2014				Year ended December 31, 2013				Year ended December 31, 2012
Income for the year before provision for income taxes		$	9,428,325			$	5,799,803			$	6,428,298
Computed expected tax expense		$	3,205,631			$	1,971,933			$	2,185,621
Increase (reduction) in income tax expense resulting from:
State income taxes			64,056				14,500				16,071
Permanent differences, including foreign exchange			192,260				13,700				21,728
Investment tax credits recovered			—				(115,455	)			(106,941	)
Other, including alternative minimum tax and adjustments to opening deferred tax assets			(407,718	)			(265,339	)			(112,323	)
Provision for (recovery of) income taxes		$	3,054,229			$	1,619,339			$	2,004,156

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

		December 31, 2014				December 31, 2013
Deferred tax assets:
Deferred revenue		$	5,294,767			$	5,300,868
Losses			—				290,714
Foreign tax credit			3,200,961				1,914,090
Amortization			(414,345	)			69,169
Accruals, including foreign exchange and other			(702,764	)			(1,123,278	)
Deferred tax assets		$	7,378,619			$	6,451,563
Deferred income tax asset, current portion		$	2,498,196			$	1,081,526
Deferred income tax asset, long-term portion			4,880,423				5,370,037
		$	7,378,619			$	6,451,563
Deferred tax liabilities:
Limited life intangible assets		$	(208,620	)		$	(301,500	)
Indefinite life intangible assets			(4,578,731	)			(4,840,000	)
Total deferred tax liability, long-term portion		$	(4,787,351	)		$	(5,141,500	)

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

Total Gross Unrecognized Tax Benefits		December 31, 2014				December 31, 2013
Balance, beginning of year		$	117,000			$	382,000
Decrease in uncertain tax benefits of prior years			—				(265,000	)
Balance, end of year		$	117,000			$	117,000

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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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

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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

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-Publisher FASB

-Name Accounting Standards Codification

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Tabular disclosure of the change in unrecognized tax benefits.

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