Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Jan. 31, 2012	Jan. 31, 2011
Cash flows from operating activities:
Net income	$ 392,000	$ 625,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	380,000	307,000
Amortization	197,000	229,000
Accretion on long-term debt	26,000	263,000
Loss on early extinguishment of debt	25,000	78,000
Provision for bad debt	118,000	60,000
Provision for obsolete and slow-moving inventory	110,000	399,000
Provision for warranty	244,000	23,000
Provision for contract losses	1,274,000	1,227,000
Stock-based compensation	188,000	241,000
Gain from casualty	0	(235,000)
Proceeds from insurance	0	235,000
Provision for deferred income taxes	436,000	556,000
Unrecognized tax benefits	0	(40,000)
Changes in assets and liabilities:
Accounts receivable, net	(655,000)	(1,292,000)
Inventories, net	460,000	(19,000)
Prepaid expenses and other current assets, net	600,000	(1,367,000)
Other assets	0	(109,000)
Accounts payable, trade	(116,000)	(173,000)
Customer advances	0	(452,000)
Compensation and benefits	(162,000)	60,000
Income tax payable	0	(67,000)
Accrued expenses and other liabilities	(1,993,000)	(38,000)
Net cash provided by operating activities	1,524,000	511,000
Cash flows from investing activities:
Capital expenditures	(1,068,000)	(908,000)
Net cash used in investing activities	(1,068,000)	(908,000)
Cash flows from financing activities:
Net increase in revolving credit facility	799,000	148,000
Principal payments on notes payable	(600,000)	(800,000)
Proceeds from issuance of notes payable	0	600,000
Principal payments on long-term debt	(660,000)	(5,501,000)
Proceeds from refinancing of long-term debt	0	6,112,000
Net cash (used in) provided by financing activities	(461,000)	559,000
Change in cash and cash equivalents	(5,000)	162,000
Cash and cash equivalents, beginning of year	162,000	0
Cash and cash equivalents, end of year	157,000	162,000
Supplemental disclosures of cash flow information:
Interest	345,000	467,000
Income taxes	0	67,000
Non-cash financing and other transactions:
Common stock warrants issued	$ 0	$ 249,000