CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jan. 31, 2012	Jan. 31, 2011
Current assets
Cash and cash equivalents	$ 4,209	$ 16,718
Restricted cash	1,854	984
Trade accounts receivable, less allowance for doubtful accounts of $235 at January 31, 2012 and $346 at January 31, 2011	28,109	36,634
Inventories, net	39,968	35,509
Prepaid expenses and other current assets	3,973	4,575
Deferred tax assets - current	1,946	2,389
Costs and estimated earnings in excess of billings on uncompleted contracts	2,375	2,055
Income tax receivable	0	204
Total current assets	82,434	99,068
Property, plant and equipment, net of accumulated depreciation	47,842	43,655
Other assets
Deferred tax assets - long-term	10,967	8,470
Note receivable from joint venture	4,195	4,270
Investment in joint venture	4,636	3,078
Cash surrender value of deferred compensation plan	2,782	2,869
Other assets	3,860	1,605
Patents, net of accumulated amortization	331	260
Total other assets	26,771	20,552
Total assets	157,047	163,275
Current liabilities
Trade accounts payable	20,020	19,296
Commissions and management incentives payable	4,722	6,867
Accrued compensation and payroll taxes	4,571	4,332
Other accrued liabilities	2,610	3,166
Current maturities of long-term debt	2,736	3,082
Customers' deposits	2,432	1,913
Billings in excess of costs and estimated earnings on uncompleted contracts	1,978	1,597
Income tax payable	417	0
Total current liabilities	39,486	40,253
Long-term liabilities
Long-term debt, less current maturities	34,682	36,192
Deferred compensation liabilities	5,686	5,138
Other long-term liabilities	5,074	3,638
Total long-term liabilities	45,442	44,968
Stockholders' equity
Common stock, $.01 par value, authorized 50,000 shares; 6,913 issued and outstanding at January 31, 2012 and 6,851 issued and outstanding at January 31, 2011	69	69
Additional paid-in capital	49,828	49,003
Retained earnings	22,802	27,789
Accumulated other comprehensive (loss) income	(580)	1,193
Total stockholders' equity	72,119	78,054
Total liabilities and stockholders' equity	$ 157,047	$ 163,275