Prepaid Expenses and Other Current Assets (Details Textual) (USD $)	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Prepaid expenses and other current assets, net	$ 582,000	$ 1,802,000
Deferred Finance Costs Current Net	267,000	1,332,000
Accrued Liabilities, Current	71,000	1,086,000
Deferred Charges Setoff	19,000	0
Engineering Contracts [Member]
Prepaid expenses and other current assets, net	267,000	1,332,000
Internal Engineering Labor [Member]
Deferred Finance Costs Current Net	166,000	1,332,000
External Engineering Labor [Member]
Deferred Finance Costs Current Net	$ 101,000	$ 0