Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating Activities:
Net income	$ 10,590	$ 9,687
Adjustments to reconcile net income to net cash provided by operating activities from continuing operations:
Loss from discontinued operations		76
Depreciation and amortization	2,083	2,054
Stock-based compensation	1,841	3,043
Deferred taxes	450	(98)
Gain on sales of available-for-sale securities and strategic investments	(496)	(835)
Excess tax benefit from stock-based compensation plans	(436)	(452)
Other	(42)
Change in operating assets and liabilities, excluding the impact from discontinued operations:
Accounts receivable	(1,244)	156
Inventories	(647)	428
Prepaids and other	66	(114)
Accounts payable and accrued liabilities	132	(919)
Income taxes	(221)	(560)
Net cash provided by operating activities from continuing operations	12,076	12,466
Investing Activities:
Purchases of property and equipment	(396)	(1,165)
Cash proceeds from sales of property and equipment	42
Purchases of available-for-sale securities	(3,377)	(132,648)
Sales and maturities of available-for-sale securities	22,199	157,970
Cash received from sales of strategic investments	21	708
Cash transferred to discontinued operations	(45)	(239)
Net cash provided by investing activities from continuing operations	18,444	24,626
Financing Activities:
Excess tax benefit from stock-based compensation plans	436	452
Issuance of common stock	451	348
Repurchase of common stock	(20,000)	(12,544)
Purchase of common stock to pay employee taxes	(810)	(1,114)
Net cash used in financing activities from continuing operations	(19,923)	(12,858)
Net cash provided by continuing operations	10,597	24,234
Discontinued Operations:
Net cash used in operating activities	(45)	(239)
Net cash provided by financing activities	45	239
Net cash provided by discontinued operations	0	0
Net change in cash and cash equivalents	10,597	24,234
Cash and Cash Equivalents:
Beginning of period	43,511	15,495
End of period	54,108	39,729
Supplemental Information:
Cash paid for income taxes	4,651	4,860
Noncash transactions - acquisition of property and equipment on account	113	224
Noncash transactions - issuance of performance shares, restricted and deferred stock units	$ 2,250	$ 3,007