Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating Activities:
Net income	$ 7,491	$ 159
Adjustments to reconcile net income (loss) to net cash provided by operating activities from continuing operations:
Income (loss) from discontinued operations, net of income taxes	(1,231)	8,576
Loss on sale of discontinued operations	1,015
Depreciation and amortization	2,214	2,393
Gain on sale of investments	(172)	(380)
Amortization of premium on held-to-maturity securities	31	72
Impairment loss on investment	804
Stock-based compensation	2,189	2,791
Deferred taxes	(548)	(229)
Other	48	13
Change in operating assets and liabilities:
Accounts receivable	(793)	682
Inventories	(82)	(700)
Accounts payable and accrued liabilities	(3,445)	(1,321)
Income taxes	4,632	4,651
Deferred revenue	(30)	429
Prepaids and other	(138)	54
Net cash provided by operating activities from continuing operations	11,985	17,190
Investing Activities:
Purchases of property and equipment	(429)	(1,387)
Purchases of available-for-sale securities	(35,420)	(48,309)
Sales and maturities of available-for-sale securities	35,203	47,827
Maturities of held-to-maturity securities	3,000	1,000
Payments related to a prior business acquisition		(5,650)
Cash received from (transferred to) discontinued operations	28,304	(4,102)
Net cash provided by (used in) investing activities from continuing operations	30,658	(10,621)
Financing Activities:
Issuance of common stock	280	487
Purchase of common stock to pay employee taxes	(272)	(10)
Net cash provided by financing activities from continuing operations	8	477
Net cash provided by continuing operations	42,651	7,046
Discontinued Operations:
Net cash used in operating activities	(1,513)	(2,170)
Net cash (used in) provided by investing activities	29,817	(1,892)
Net cash (used in) provided by financing activities	(28,304)	4,062
Net cash (used in) provided by discontinued operations	(606)	1,027
Net change in cash and cash equivalents	42,651	7,046
Cash and Cash Equivalents:
Beginning of period	23,217	11,391
End of period	65,868	18,437
Supplemental Information:
Cash paid (received) for income taxes	389	(398)
Noncash transaction - acquisition of property and equipment on account	$ 8	$ 104