Note 19 - Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure Text Block Supplement [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

	2014
Derivative designated as hedging instrument	Balance sheet location	Fair Value
Interest rate swap asset	Other assets (non-current)	$	27

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	Carrying value at			Fair value measurements
	December 31, 2014				Level 1		Level 2		Level 3
Interest rate swap asset		$	27		$	-	$	27		$	-
Contingent consideration liability			27,136			-		-			27,136

Change In Fair Value Of Contingent Consideration Liability [Table Text Block]

Balance, December 31, 2013	$	8,740
Amounts recognized on acquisitions		17,838
Fair value adjustments (note 5)		2,371
Resolved and settled in cash		(238)
Other		(1,575)
Balance, December 31, 2014	$	27,136
Less: current portion	$	10,971
Non-current portion	$	16,165

Fair Value, by Balance Sheet Grouping [Table Text Block]

	2014						2013
	Carrying amount			Fair value			Carrying amount			Fair value
Other receivables		$	6,845		$	6,845		$	7,455		$	7,455
Long-term debt			493,348			513,128			372,794			386,952