Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2013		Jun. 30, 2012
Cash flows from operating activities
Consolidated net income	$ 13,014		$ 10,513
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,152		4,105
Stock-based compensation	4,373		3,730
Amortization of intangibles	1,191		1,449
Gain on sale of investments	(9,339)		0
Equity in net income of affiliate	222		0
Net foreign currency transaction losses	(538)		532
Deferred tax assets	7,197		3,802
Other non-cash items	56		102
Net effect of changes in current and other assets and current liabilities	1,582		(6,639)
Net cash provided by operating activities	21,910		17,594
Cash flows from investing activities
Acquisition of property, equipment and leasehold improvements	(17,883)		(4,900)
Acquisition of noncontrolling interest in consolidated subsidiary	(1,614)		(2,370)
Investment in joint venture	0		2,000
Payment of holdback related to Si En acquisition	(4,200)		0
Proceeds from sale of investments	20,386		0
Increase in restricted cash	0		137
Purchases of available-for-sale securities	(4,330)		(1,081)
Proceeds from sales of available-for-sale securities	6,507		1,395
Cash used in investing activities	(1,134)		(9,093)
Cash flows from financing activities
Repurchases and retirement of common stock	(547)		(464)
Proceeds from issuance of common stock	5,338		4,338
Proceeds from borrowings	4,875		0
Principal payments of long-term obligations	(97)		0
Proceeds from borrowings under short-term lines of credit	4,069		19,446
Principal payments of short-term lines of credit	(4,069)		(19,446)
Cash provided by financing activities	9,569		3,874
Effect of exchange rate changes on cash and cash equivalents	(616)		346
Net increase in cash and cash equivalents	29,729		12,721
Cash and cash equivalents at beginning of period	75,497	[1]	83,863
Cash and cash equivalents at end of period	$ 105,226		$ 96,584

[1] Derived from audited financial statements.