Segment Data (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Oct. 31, 2015	Oct. 31, 2014		Oct. 31, 2015	Oct. 31, 2014
Segment Reporting Information [Line Items]
Net sales from continuing operations	$ 24,888	$ 23,543	[1]	$ 79,172	$ 68,114	[1]
Domestic [Member]
Segment Reporting Information [Line Items]
Net sales from continuing operations	$ 14,660	$ 13,000	[1]	$ 45,980	$ 37,170	[1]
Sales Revenue, Percentage	58.88%	55.23%	[1]	58.08%	54.57%	[1]
International [Member]
Segment Reporting Information [Line Items]
Net sales from continuing operations	$ 10,230	$ 10,540	[1]	$ 33,190	$ 30,940	[1]
Sales Revenue, Percentage	41.12%	44.77%	[1]	41.92%	45.43%	[1]
Sales Revenue, Net [Member]
Segment Reporting Information [Line Items]
Net sales from continuing operations	$ 24,890	$ 23,540		$ 79,170	$ 68,110
Sales Revenue, Percentage	100.00%	100.00%	[1]	100.00%	100.00%	[1]

[1] Restated for discontinued operations.