CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jan. 31, 2013	Jan. 31, 2012
Current assets
Cash and cash equivalents	$ 7,035	$ 4,209
Restricted cash	725	1,854
Trade accounts receivable, less allowance for doubtful accounts of $352 at January 31, 2013 and $235 at January 31, 2012	27,842	28,109
Inventories, net	42,333	40,204
Prepaid expenses and other current assets	4,476	3,973
Deferred tax assets - current	0	1,946
Costs and estimated earnings in excess of billings on uncompleted contracts	1,935	2,375
Total current assets	84,346	82,670
Property, plant and equipment, net of accumulated depreciation	46,401	47,842
Other assets
Deferred tax assets - long-term	1,766	10,967
Note receivable from joint venture	5,200	4,195
Investment in joint venture	6,022	4,636
Cash surrender value of deferred compensation plan	2,946	2,782
Other assets	2,425	3,860
Patents, net of accumulated amortization	373	331
Total other assets	18,732	26,771
Total assets	149,479	157,283
Current liabilities
Trade accounts payable	22,905	20,020
Commissions and management incentives payable	3,368	4,722
Accrued compensation and payroll taxes	5,112	4,571
Current maturities of long-term debt	5,419	2,736
Customers' deposits	7,571	2,432
Other accrued liabilities	2,524	2,610
Billings in excess of costs and estimated earnings on uncompleted contracts	1,572	1,978
Deferred tax liabilities - current	696	0
Income tax payable	34	417
Total current liabilities	49,201	39,486
Long-term liabilities
Long-term debt, less current maturities	36,603	34,682
Deferred compensation liabilities	5,670	5,686
Other long-term liabilities	3,750	5,074
Total long-term liabilities	46,023	45,442
Stockholders' equity
Common stock, $.01 par value, authorized 50,000 shares; 6,924 issued and outstanding at January 31, 2013 and 6,913 issued and outstanding at January 31, 2012	69	69
Additional paid-in capital	50,358	49,828
Retained earnings	4,553	23,038
Accumulated other comprehensive loss	(725)	(580)
Total stockholders' equity	54,255	72,355
Total liabilities and stockholders' equity	$ 149,479	$ 157,283