CONSOLIDATED CONDENSED BALANCE SHEETS (USD $) In Thousands	Jul. 31, 2011	Oct. 31, 2010
Current assets:
Cash and cash equivalents	$ 18,206	$ 12,951
Short-term investments	39,440	41,119
Accounts receivable, net	10,484	8,701
Inventories	9,363	9,433
Deferred income tax asset, net	367	367
Other current assets	1,739	1,715
Total current assets	79,599	74,286
Investments, net	11,151	7,854
Property, plant and equipment, net	4,239	3,401
Goodwill	3,620	3,620
Other intangible assets, net	5,851	6,182
Deferred income tax asset, net	2,155	2,139
Total assets	106,615	97,482
Current liabilities:
Accounts payable	1,646	1,644
Accrued expenses	5,369	6,371
Total current liabilities	7,015	8,015
Total liabilities	7,015	8,015
Commitments and contingencies	0	0
Shareholders' equity:
Preferred stock: authorized 5,000,000 shares of $0.01 par value; none issued or outstanding as of July 31, 2011 and October 31, 2010	0	0
Common stock: authorized 20,000,000 shares of $0.01 par value; issued and outstanding, 11,545,174 and 11,228,654 as of July 31, 2011 and October 31, 2010, respectively	115	112
Additional paid-in capital	66,163	61,780
Accumulated other comprehensive income	27	26
Retained earnings	33,295	27,549
Total shareholders' equity	99,600	89,467
Total liabilities and shareholders' equity	$ 106,615	$ 97,482