Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating Activities:
Net income	$ 9,687	$ 11,481
Adjustments to reconcile net income to net cash provided by operating activities from continuing operations:
Loss (income) from discontinued operations	76	(635)
Depreciation and amortization	2,054	2,174
Stock-based compensation	3,043	1,983
Deferred taxes	(98)	34
Gain on sales of available-for-sale securities and strategic investments	(835)	(1,460)
Impairment loss on investments		129
Excess tax (benefit) deficiency from stock-based compensation plans	(452)	252
Change in operating assets and liabilities, excluding the impact from discontinued operations:
Accounts receivable	156	333
Inventories	428	314
Prepaids and other	(114)	(305)
Accounts payable and accrued liabilities	(919)	(876)
Income taxes	(560)	(1,520)
Net cash provided by operating activities from continuing operations	12,466	11,904
Investing Activities:
Purchases of property and equipment	(1,165)	(1,448)
Purchases of available-for-sale securities	(132,648)	(34,599)
Sales and maturities of available-for-sale securities	157,970	34,487
Cash received from sales of strategic investments	708	2,286
Cash transferred to discontinued operations	(239)	(118)
Net cash provided by investing activities from continuing operations	24,626	608
Financing Activities:
Excess tax benefit (deficiency) from stock-based compensation plans	452	(252)
Issuance of common stock	348	273
Repurchase of common stock	(12,544)	(10,323)
Purchase of common stock to pay employee taxes	(1,114)	(39)
Net cash used in financing activities from continuing operations	(12,858)	(10,341)
Net cash provided by continuing operations	24,234	2,171
Discontinued Operations:
Net cash used in operating activities	(239)	(118)
Net cash provided by financing activities	239	118
Net cash provided by discontinued operations	0	0
Net change in cash and cash equivalents	24,234	2,171
Cash and Cash Equivalents:
Beginning of period	15,495	15,540
End of period	39,729	17,711
Supplemental Information:
Cash paid for income taxes	4,860	5,257
Noncash transactions - acquisition of property and equipment on account	224	19
Noncash transactions - issuance of performance shares, restricted and deferred stock units	$ 3,007