Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Current Assets:
Cash and cash equivalents	$ 15,495	$ 15,540
Available-for-sale securities	10,212	14,117
Accounts receivable, net of allowance for doubtful accounts of $26 and $40 as of September 30, 2013 and 2012, respectively	5,332	5,069
Inventories	3,328	3,524
Deferred tax assets	506	219
Prepaids and other	860	603
Current assets of discontinued operations	46	883
Total Current Assets	35,779	39,955
Property and equipment, net	12,845	13,610
Available-for-sale securities	32,397	28,433
Deferred tax assets	6,038	5,806
Intangible assets, net	3,688	4,430
Goodwill	8,010	8,010
Other assets, net	3,166	4,075
Total Assets	101,923	104,319
Current Liabilities:
Accounts payable	954	1,657
Accrued liabilities:
Compensation	2,271	2,319
Accrued other	1,149	1,066
Share repurchase accrual	1,004
Deferred revenue	43	47
Restructuring and other current liabilities	416	170
Current liabilities of discontinued operations	139	1,640
Total Current Liabilities	5,976	6,899
Deferred revenue, less current portion	160	185
Other long-term liabilities	1,970	2,247
Total Liabilities	8,106	9,331
Commitments and Contingencies (Note 11)
Stockholders' Equity:
Series A preferred stock - $.05 par value, 450,000 shares authorized; no shares issued and outstanding
Common stock - $.05 par value, 45,000,000 shares authorized; 13,891,402 and 14,656,806 shares issued and outstanding, respectively	695	733
Additional paid-in capital	2,028	18,346
Accumulated other comprehensive income	58	40
Retained earnings	91,036	75,869
Total Stockholders' Equity	93,817	94,988
Total Liabilities and Stockholders' Equity	$ 101,923	$ 104,319