Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Jan. 31, 2012	Jan. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 8,970,000	$ 7,774,000
Removal of (income) loss on discontinued operations	(1,562,000)	2,233,000
Income from continuing operations	7,408,000	10,007,000
Adjustments to reconcile income from continuing operations to net cash provided by continuing operating activities:
Non-cash stock compensation expense	652,000	1,502,000
Amortization of purchased intangible assets	334,000	350,000
Depreciation and other amortization	455,000	642,000
Deferred income taxes	(51,000)	410,000
Changes in operating assets and liabilities:
Accounts receivable	(2,976,000)	(10,359,000)
Restricted cash	1,243,000	3,759,000
Costs and estimated earnings in excess of billings	(1,338,000)	11,488,000
Prepaid expenses and other assets	(4,020,000)	1,554,000
Accounts payable and accrued expenses	20,252,000	(5,097,000)
Billings in excess of costs and estimated earnings	58,088,000	8,042,000
Other, net	3,000	(64,000)
Net cash provided by continuing operating activities	80,050,000	22,234,000
Net cash used in discontinued operating activities	(1,335,000)	(2,897,000)
Net cash provided by operating activities	78,715,000	19,337,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment, net	(1,738,000)	(483,000)
Net cash provided by the sale of the assets of VLI	2,528,000
Net cash provided by (used in) investing activities	790,000	(483,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from the sale of common stock	531,000	118,000
Dividends	(6,804,000)
Principal payments on long-term debt		(1,833,000)
Net cash used in financing activities	(6,273,000)	(1,715,000)
NET INCREASE IN CASH AND CASH EQUIVALENTS	73,232,000	17,139,000
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	83,292,000	66,153,000
CASH AND CASH EQUIVALENTS, END OF YEAR	$ 156,524,000	$ 83,292,000