CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2012	Jan. 31, 2012
Current assets
Cash and cash equivalents	$ 5,591	$ 4,209
Restricted cash	1,498	1,854
Trade accounts receivable, less allowance for doubtful accounts of $363 at October 31, 2012 and $235 at January 31, 2012	34,351	28,109
Inventories, net	38,753	40,204
Prepaid expenses and other current assets	4,196	3,973
Deferred tax assets - current	2,271	1,946
Costs and estimated earnings in excess of billings on uncompleted contracts	1,828	2,375
Income tax receivable	120	0
Total current assets	88,608	82,670
Property, plant and equipment, net of accumulated depreciation	48,544	47,842
Other assets
Deferred tax assets - long-term	10,250	10,967
Note receivable from joint venture	5,187	4,195
Investment in joint venture	4,990	4,636
Cash surrender value of deferred compensation plan	2,903	2,782
Other assets	2,384	3,860
Patents, net of accumulated amortization	361	331
Total other assets	26,075	26,771
Total assets	163,227	157,283
Current liabilities
Trade accounts payable	18,605	20,020
Accrued compensation and payroll taxes	4,663	4,571
Commissions and management incentives payable	4,016	4,722
Current maturities of long-term debt	7,956	2,736
Customers' deposits	4,297	2,432
Billings in excess of costs and estimated earnings on uncompleted contracts	1,200	1,978
Other accrued liabilities	2,926	2,610
Income taxes payable	0	417
Total current liabilities	43,663	39,486
Long-term liabilities
Long-term debt, less current maturities	39,487	34,682
Deferred compensation liabilities	5,506	5,686
Other long-term liabilities	5,249	5,074
Total long-term liabilities	50,242	45,442
Stockholders' equity
Common stock, $.01 par value, authorized 50,000 shares; 6,924 issued and outstanding at October 31, 2012 and 6,913 issued and outstanding at January 31, 2012	69	69
Additional paid-in capital	50,243	49,828
Retained earnings	20,080	23,038
Accumulated other comprehensive loss	(1,070)	(580)
Total stockholders' equity	69,322	72,355
Total liabilities and stockholders' equity	$ 163,227	$ 157,283