Accrued Expenses (Details) (USD $)	Jan. 31, 2013	Jan. 31, 2012
Accrued Expenses [Abstract]
Compensation and employee benefits	$ 6,484,000	$ 5,608,000
Garwood note payable	1,175,000	0
Acquisition holdback payable	1,650,000	900,000
Long term incentive plan	1,036,000	285,000
Other	2,797,000	1,336,000
Total accrued expenses	$ 13,142,000	$ 8,129,000