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Note 12 - Income Tax (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

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

		2016				2015
Income tax expense using combined statutory rate of 26.5% (2015 - 26.5%, 2014 - 26.5%)		$	21,632			$	16,326
Permanent differences			434				488
Tax effect of flow through entities			(243	)			(230	)
Impact of changes in foreign exchange rates			-				(10	)
Adjustments to tax liabilities for prior periods			(456	)			1,393
Effects of changes in enacted tax rates			-				(42	)
Changes in liability for unrecognized tax benefits			(156	)			(130	)
Foreign, state and provincial tax rate differential			5,699				3,750
Gain on disposition of preferred shares			-				1,246
Other taxes			477				(161	)
Change in valuation allowances			-				782
Provision for income taxes as reported		$	27,387			$	23,412

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

		2016				2015
Canada		$	16,989			$	8,590
United States			64,641				53,020
Total		$	81,630			$	61,610

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

		2016				2015
Current
Canada		$	3,689			$	829
United States			21,945				10,757
			25,634				11,586
Deferred
Canada			(317	)			1,352
United States			2,070				10,474
			1,753				11,826
Total		$	27,387			$	23,412

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

		2016				2015
Deferred income tax assets
Loss carry-forwards		$	1,066			$	6,071
Expenses not currently deductible			18,120				13,245
Stock-based compensation			2,956				2,420
Basis differences of partnerships and other entities			1,047				925
Allowance for doubtful accounts			3,457				2,967
Inventory and other reserves			542				548
			27,188				26,176
Deferred income tax liabilities
Depreciation and amortization			31,168				13,971
Prepaid and other expenses deducted for tax purposes			1,942				1,782
			33,110				15,753
Net deferred income tax asset (liability) before valuation allowance			(5,922	)			10,423
Valuation allowance			756				783
Net deferred income tax asset (liability)		$	(6,678	)		$	9,640

Summary of Operating Loss Carryforwards [Table Text Block]

		Loss carry forward								Gross losses not recognized								Net
		2016				2015				2016				2015				2016				2015
Canada		$	2,082			$	3,234			$	-			$	-			$	2,082			$	3,234
United States			7,902				21,472				6,470				6,470				1,432				15,002

Summary of Income Tax Contingencies [Table Text Block]

Balance, December 31, 2014		$	494
Reduction for lapses in applicable statutes of limitations			(202	)
Balance, December 31, 2015			292
Increases based on tax positions related to 2016			(144	)
Balance, December 31, 2016		$	148

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