Note 8 - Intangible Assets (Tables)

12 Months Ended

Jan. 30, 2016

Notes Tables

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	January 30, 2016			January 31, 2015
Acquired intangible assets	$	88,910		$	76,310
Purchased IP		38,956			30,032
Total		127,866			106,342
Accumulated amortization		(90,816	)		(81,700	)
Intangible assets, net	$	37,050		$	24,642

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

	January 30, 2016
	Gross Value		Impairment			Accumulated Amortization and Effect of Currency Translation			Net Value		Weighted Average Remaining Amortization Period (Years)
Acquired intangible assets:
Developed technology	$	85,427	$	(24,614	)	$	(48,824	)	$	11,989		6.5
Customer relationships		54,505		(30,486	)		(19,557	)		4,462		5.7
Trademarks and other		4,078		-			(3,739	)		339		2.9
Purchased IP - amortizing		32,838		(5,516	)		(18,696	)		8,626		2.9
Total amortizing		176,848		(60,616	)		(90,816	)		25,416		5.1
Purchased IP - not yet deployed		15,774		(4,140	)		-			11,634
Total intangibles	$	192,622	$	(64,756	)	$	(90,816	)	$	37,050

	January 31, 2015
	Gross Value		Impairment			Accumulated Amortization and Effect of Currency Translation			Net Value		Weighted Average Remaining Amortization Period (Years)
Acquired intangible assets:
Developed technology	$	76,628	$	(24,614	)	$	(44,604	)	$	7,410		2.0
Customer relationships		50,704		(30,486	)		(18,313	)		1,905		1.7
Trademarks and other		4,078		-			(3,621	)		457		3.9
Purchased IP - amortizing		23,398		(5,516	)		(15,162	)		2,720		1.0
Total amortizing		154,808		(60,616	)		(81,700	)		12,492		1.8
Purchased IP - not yet deployed		15,877		(3,727	)		-			12,150
Total intangibles	$	170,685	$	(64,343	)	$	(81,700	)	$	24,642

Amortization of Intangible Assets [Table Text Block]

	Fiscal Years Ended
	January 30, 2016		January 31, 2015		February 1, 2014
Cost of revenue	$	7,586	$	7,922	$	9,105
Operating expenses		1,722		1,418		1,542
Total intangible amortization expense	$	9,308	$	9,340	$	10,647

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Fiscal years	Purchased IP-Amortizing		Developed Technology		Customer Relationships		Trademarks and other		Total
2017	$	3,617	$	4,017	$	1,340	$	118	$	9,092
2018		2,513		1,555		543		118		4,729
2019		1,610		1,060		543		103		3,316
2020		823		1,060		543		0		2,426
2021		63		970		543		0		1,576
Thereafter		0		3,327		950		0		4,277
Total	$	8,626	$	11,989	$	4,462	$	339	$	25,416