Intangible Assets (Details Textual) (USD $)	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Finite-Lived Intangible Assets, Amortization Expense	$ 94,000	$ 161,000
Amortization of Financing Costs	37,000	36,000
Payments of Debt Issuance Costs	9,000
Intillectual Property Agreement Sale Consideration	2,300,000
Proceeds From Sale Of Intllectual Property Agreement	1,553,000
Gain on sale of intangible assets	$ 1,990,000	$ 0