Note 10 - Goodwill (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure Text Block Supplement [Abstract]

Schedule of Goodwill [Table Text Block]

		Americas			EMEA			Asia Pacific			Consolidated
Balance, December 31, 2013	$	72,270		$	95,804		$	47,635		$	215,709
Goodwill acquired during the year		1,256			92,847			5,458			99,561
Goodwill disposed during the year		(1,104	)		-			-			(1,104	)
Other items		(1,485	)		-			-			(1,485	)
Foreign exchange		(1,117	)		(21,347	)		(4,096	)		(26,560	)
Balance, December 31, 2014		69,820			167,304			48,997			286,121
Goodwill acquired during the year		39,627			3,322			424			43,373
Goodwill disposed during the year		-			(111	)		-			(111	)
Foreign exchange		(2,650	)		(16,159	)		(4,894	)		(23,703	)
Balance, December 31, 2015		106,797			154,356			44,527			305,680
Goodwill		133,068			157,668			44,527			335,263
Accumulated impairment loss		(26,271	)		(3,312	)		-			(29,583	)
	$	106,797		$	154,356		$	44,527		$	305,680