Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Oct. 31, 2011	Oct. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 4,688,000	$ 6,859,000
Removal of (income) loss on discontinued operations	(118,000)	1,913,000
Income from continuing operations	4,570,000	8,772,000
Adjustments to reconcile income from continuing operations to net cash provided by continuing operating activities:
Stock compensation expense	484,000	1,112,000
Depreciation	344,000	430,000
Amortization of purchased intangibles	262,000	262,000
Deferred income tax (benefit)	(19,000)	(326,000)
Other	8,000	73,000
Changes in operating assets and liabilities:
Restricted cash	1,243,000	3,382,000
Accounts receivable	(4,094,000)	(18,448,000)
Costs and estimated earnings in excess of billings	(4,218,000)	8,029,000
Prepaid expenses and other assets	(4,374,000)	2,628,000
Accounts payable and accrued expenses	14,208,000	(6,056,000)
Billings in excess of costs and estimated earnings	43,939,000	13,238,000
Net cash provided by continuing operating activities	52,353,000	13,096,000
Net cash (used in) discontinued operating activities	(15,000)	(763,000)
Net cash provided by operating activities	52,338,000	12,333,000
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment, net	(135,000)	(480,000)
Net cash provided by investing activities of discontinued operations	2,502,000	4,000
Net cash provided by (used in) investing activities	2,367,000	(476,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from stock options exercised	28,000	80,000
Proceeds from warrants exercised	23,000	23,000
Principal payments on long-term debt		(1,500,000)
Net cash provided by (used in) financing activities	51,000	(1,397,000)
NET INCREASE IN CASH AND CASH EQUIVALENTS	54,756,000	10,460,000
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	83,292,000	66,153,000
CASH AND CASH EQUIVALENTS, END OF PERIOD	138,048,000	76,613,000
Cash paid for:
Income taxes	3,765,000	1,274,000
Interest		$ 32,000