Income Taxes (Details) (USD $)	Jan. 31, 2013	Jan. 31, 2012
Deferred Tax Assets
Purchased intangibles	$ 1,407,000	$ 1,557,000
Stock options	1,675,000	1,497,000
Accrued liabilities	855,000	695,000
Moxie Project net operating losses	432,000
Other	144,000	228,000
Total Asset	4,513,000	3,977,000
Deferred Tax Liabilities
Purchased intangibles	2,258,000	1,942,000
Property and equipment	581,000	453,000
Other	35,000	53,000
Total Liabilities	2,874,000	2,448,000
Net deferred tax assets	$ 1,639,000	$ 1,529,000