Commitments and Contingencies (Details Textual) (USD $)	12 Months Ended		0 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Aug. 02, 2012 B M O Harris Bank [Member]
Operating Leases, Rent Expense	$ 152,000	$ 167,000
Environmental liability	404,000	788,000
Additional Reductions From Defense Top Line Budget Over Next Nine Years	500,000,000,000
Percentage Of Reduced Non Exempt Discretionary Accounts In Defense Budget	9.40%
Reduced In Defense Top Line Budget Over Ten Years	490,000,000,000
Repayments of Debt			187,500
Performance Guaranty Description			As of January 31, 2013, as a result of the Company's timely performance, the stand-by letter of credit is void. In addition, the Company guaranteed 10% of the contract price, or $75,000, should the Company fail to deliver hardware. The contract subjects the Company to liquidated damages, limited to 10% of the total amount paid to the seller to date, for failure to timely deliver hardware.
Costs Incurred Property Held For Sale	$ 22,000	$ 20,000