Note 15. Equity Incentive Plans and Employee Benefits (Details) - Contributions to Retirement Pension Plans (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Aug. 03, 2013		Jul. 28, 2012		Aug. 03, 2013		Jul. 28, 2012
Defined Benefit Plan Disclosure [Line Items]
Matching contributions	$ 152		$ 81		$ 492		$ 142
Denmark [Member]
Defined Benefit Plan Disclosure [Line Items]
Matching contributions	61		48		109		95
Taiwan [Member]
Defined Benefit Plan Disclosure [Line Items]
Matching contributions	38		33		77		47
The Netherlands [Member]
Defined Benefit Plan Disclosure [Line Items]
Matching contributions	93	[1]		[1]	252	[1]
Germany [Member]
Defined Benefit Plan Disclosure [Line Items]
Matching contributions	$ (40)	[1]		[1]	$ 54	[1]

[1] As a result of our acquisition of the DTV business, we added operations in The Netherlands and Germany in May 2013.