Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014	Jan. 31, 2015
Segment Reporting
Revenues	$ 8,098	$ 8,706	$ 26,810	$ 27,431
Long-lived tangible assets	1,177		1,177		$ 1,165
U.S. and Canada
Segment Reporting
Revenues	5,725	6,064	19,534	19,724
Asia
Segment Reporting
Revenues	996	887	2,801	2,692
Long-lived tangible assets	51		51		72
Latin America
Segment Reporting
Revenues	557	700	1,710	2,143
United Kingdom and Europe
Segment Reporting
Revenues	170	523	681	1,714
United States
Segment Reporting
Long-lived tangible assets	876		876		794
All Others
Segment Reporting
Revenues	650	$ 532	2,084	$ 1,158
Mexico
Segment Reporting
Long-lived tangible assets	$ 250		$ 250		$ 299