Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Jan. 31, 2012		Jan. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,357,000		$ 5,783,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,715,000		7,384,000
Amortization of debt issuance cost and debt discount	485,000		0
Impairment loss	2,208,000		0
Allowance for doubtful accounts	123,000		(451,000)
Gain on sale of assets	0		(3,017,000)
Loss on retirement of assets	75,000		16,000
Loss (gain) on investments	91,000		(214,000)
Deferred income taxes	1,315,000		2,318,000
Share based compensation	554,000		471,000
Other long-term liabilities	(400,000)		0
Changes in operating assets and liabilities (net of acquisitions):
Accounts receivable	(5,126,000)		824,000
Inventories	33,000		(1,317,000)
Prepaid expenses	(953,000)		(637,000)
Other assets	896,000		519,000
Income taxes receivable, net	(1,264,000)		(1,312,000)
Accounts payable	2,855,000		1,166,000
Accrued expenses	(176,000)		(365,000)
Deferred income	227,000		353,000
Deferred compensation	299,000		204,000
Net cash provided by operating activities	11,314,000		11,725,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(11,341,000)		(11,693,000)
Investment in life insurance	(6,000)		(25,000)
Proceeds from sale of life insurance	0		1,826,000
Acquisition of Mechtronic Solutions, Inc.	0		(6,500,000)
Acquisition of Ingenium Testing	(12,002,000)		0
Acquisition of Lightning Technologies Inc.	(5,348,000)		0
Acquisition earn-out payments	0		(3,149,000)
Proceeds from sale of assets	0		2,293,000
Investment in retirement funds	(656,000)		(750,000)
Net cash used in investing activities	(29,353,000)		(17,998,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from current and long-term debt	10,615,000		44,121,000
Repayments of current and long-term debt	(9,834,000)		(36,320,000)
Net cash dividends paid by NQA, Inc.	(200,000)		(200,000)
Cash dividends paid	0		(709,000)
Proceeds from Mill Road financing, net	12,637,000		0
Proceeds from stock options exercised	196,000		879,000
Tax benefit from restricted stock issuance and stock options exercised	77,000		344,000
Net cash provided by financing activities	13,491,000		8,115,000
Effect of exchange rate changes on cash	(41,000)		(20,000)
Net (decrease) increase in cash and cash equivalents	(4,589,000)		1,822,000
Beginning cash and cash equivalents balance	8,924,000	[1]	7,102,000	[2]
ENDING CASH AND CASH EQUIVALENTS BALANCE	4,335,000	[3]	8,924,000	[1]
Cash payments during the year for: [Abstract]
Interest	2,029,000		1,377,000
Income taxes	$ 2,087,000		$ 3,353,000

[1] Cash and cash equivalents at January 31, 2011 includes cash from discontinued operations of $376,000.

[2] Cash and cash equivalents at January 31, 2010 includes cash from discontinued operations of $404,000.

[3] Cash and cash equivalents at January 31, 2012 includes cash from discontinued operations of $15,000.