Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Jun. 30, 2011	Sep. 30, 2010
Current Assets
Cash and cash equivalents	$ 18,437	$ 11,391
Short-term investments	15,909	9,105
Accounts receivable, net of allowance for doubtful accounts of $290 and $461 as of June 30, 2011 and September 30, 2010, respectively	9,166	8,987
Inventories	3,735	3,047
Deferred tax asset	830	247
Prepaids and other	2,526	4,701
Total current assets	50,603	37,478
Property and equipment, net	63,842	65,395
Long-term investments	28,899	36,290
Deferred tax asset	3,102	2,606
Intangible assets , net	14,097	15,257
Goodwill	8,010	8,010
Other assets, net	4,896	5,243
Total assets	173,449	170,279
Current Liabilities
Accounts payable	1,615	3,341
Accrued liabilities:
Compensation	2,322	930
Accrued other	1,834	1,753
Deferred revenue	1,376	562
Other current liabilities	376	1,061
Total current liabilities	7,523	7,647
Deferred revenue, less current portion	3,656	3,598
Other long-term liabilities	4,394	4,675
Total liabilities	15,573	15,920
Commitments and contingencies (Note 15)
Stockholders' Equity
Series A Preferred stock- $.05 par value, 450,000 shares authorized; no shares issued and outstanding	0	0
Common stock- $.05 par value, 45,000,000 shares authorized; 17,525,477 and 17,423,601 shares issued and outstanding	876	871
Additional paid-in capital	73,373	69,702
Accumulated other comprehensive income	568	886
Retained earnings	83,059	82,900
Total stockholders' equity	157,876	154,359
Total liabilities and stockholders' equity	$ 173,449	$ 170,279