CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Oct. 31, 2011	Oct. 31, 2010
Current assets:
Cash and cash equivalents	$ 18,013	$ 12,951
Short-term investments	41,203	41,119
Accounts receivable, net	11,262	8,701
Inventories	9,998	9,433
Deferred income tax asset, net	447	367
Other current assets	1,973	1,715
Total current assets	82,896	74,286
Investments, net	7,335	7,854
Property, plant and equipment, net	4,154	3,401
Goodwill	3,620	3,620
Other intangible assets, net	5,764	6,182
Deferred income tax asset, net	2,166	2,139
Total assets	105,935	97,482
Current liabilities:
Accounts payable	2,235	1,644
Accrued expenses	7,780	6,371
Total current liabilities	10,015	8,015
Total liabilities	10,015	8,015
Commitments and contingencies (Note 9)
Shareholders' equity:
Preferred stock: authorized 5,000,000 shares of $0.01 par value; none issued or outstanding as of October 31, 2011 and 2010	0	0
Common stock: authorized 20,000,000 shares of $0.01 par value; issued and outstanding, 11,167,690 and 11,228,654 as of October 31, 2011 and 2010, respectively	112	112
Additional paid-in capital	59,832	61,780
Accumulated other comprehensive (loss) income	(34)	26
Retained earnings	36,010	27,549
Total shareholders' equity	95,920	89,467
Total liabilities and shareholders' equity	$ 105,935	$ 97,482