Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Jul. 31, 2011	Jul. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 2,676,000	$ 5,324,000
Removal of (income) loss on discontinued operations	(411,000)	988,000
Income from continuing operations	2,265,000	6,312,000
Adjustments to reconcile income from continuing operations to net cash provided by continuing operating activities:
Stock compensation expense	352,000	708,000
Deferred income tax expense	167,000	431,000
Amortization of purchased intangibles	175,000	175,000
Depreciation	231,000	297,000
Other	6,000	67,000
Changes in operating assets and liabilities:
Restricted cash	1,243,000	1,178,000
Accounts receivable	1,724,000	(9,904,000)
Costs and estimated earnings in excess of billings	883,000	4,621,000
Prepaid expenses and other assets	(2,837,000)	1,809,000
Accounts payable and accrued expenses	1,070,000	(6,226,000)
Billings in excess of costs and estimated earnings	16,206,000	7,652,000
Net cash provided by continuing operating activities	21,485,000	7,120,000
Net cash (used in) provided by discontinued operating activities	(316,000)	19,000
Net cash provided by operating activities	21,169,000	7,139,000
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment, net	(59,000)	(267,000)
Net cash provided by investing activities of discontinued operations	2,444,000	4,000
Net cash provided by (used in) investing activities	2,385,000	(263,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from stock options exercised	44,000	80,000
Proceeds from warrants exercised		23,000
Principal payments on long-term debt		(1,000,000)
Net cash provided by (used in) financing activities	44,000	(897,000)
NET INCREASE IN CASH AND CASH EQUIVALENTS	23,598,000	5,979,000
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	83,292,000	66,153,000
CASH AND CASH EQUIVALENTS, END OF PERIOD	106,890,000	72,132,000
Cash paid for:
Income taxes	2,797,000	590,000
Interest		$ 25,000