Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Jul. 31, 2012	Jul. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 10,243,000	$ 2,676,000
Removal of loss (income) on discontinued operations	285,000	(411,000)
Income from continuing operations	10,528,000	2,265,000
Adjustments to reconcile income from continuing operations to net cash provided by continuing operating activities:
Deferred income tax expense	49,000	167,000
Stock option compensation expense	568,000	349,000
Amortization of purchased intangibles	121,000	175,000
Depreciation	249,000	231,000
Changes in operating assets and liabilities:
Restricted cash		1,243,000
Accounts receivable, net	(6,012,000)	1,732,000
Costs and estimated earnings in excess of billings	(2,009,000)	883,000
Prepaid expenses and other assets	1,429,000	(2,837,000)
Accounts payable and accrued expenses	16,337,000	1,071,000
Billings in excess of costs and estimated earnings	12,309,000	16,206,000
Net cash provided by continuing operating activities	33,569,000	21,485,000
Net cash used in discontinued operating activities	(78,000)	(316,000)
Net cash provided by operating activities	33,491,000	21,169,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment, net	(3,791,000)	(59,000)
Net cash provided by the sale of the assets of VLI		2,444,000
Net cash (used in) provided by investing activities	(3,791,000)	2,385,000
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from the exercise of stock options and warrants	610,000	44,000
Net cash provided by financing activities	610,000	44,000
NET INCREASE IN CASH AND CASH EQUIVALENTS	30,310,000	23,598,000
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	156,524,000	83,292,000
CASH AND CASH EQUIVALENTS, END OF PERIOD	186,834,000	106,890,000
SUPPLEMENTAL CASH FLOW INFORMATION
Income Taxes Paid	$ 4,026,000	$ 2,797,000