Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Cash flows from operating activities
Consolidated net income	$ 7,366		$ 12,972
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,726		2,265
Stock-based compensation	2,447		1,983
Amortization of intangibles	951		722
Gain on sale of investments	0		(560)
Equity in net income of affiliate	0		(18)
Loss on the deconsolidation of Giantec	0		30
Net foreign currency transaction losses	643		107
Deferred tax assets	2,702		0
Other non-cash items	92		142
Net effect of changes in current and other assets and current liabilities	(1,916)		(14,915)
Net cash provided by operating activities	15,011		2,728
Cash flows from investing activities
Acquisition of property, equipment and leasehold improvements	(3,127)		(1,411)
Acquisition of noncontrolling interest in Wintram	(2,370)		0
Investment in joint venture	(2,000)		0
Investment in Si En, net of cash acquired	0		(15,960)
Proceeds from sale of investments	0		560
Reduction in cash balances upon deconsolidation of Giantec	0		(6,455)
Increase in restricted cash	(224)		(1,930)
Purchases of available-for-sale securities	(982)		(1,151)
Proceeds from sales of available-for-sale securities	1,304		1,502
Cash used in investing activities	(7,399)		(24,845)
Cash flows from financing activities
Repurchases and retirement of common stock	(464)		(18)
Proceeds from issuance of common stock	4,028		2,361
Proceeds from borrowings under short-term lines of credit	7,732		0
Principal payments of short-term lines of credit	(7,732)		0
Cash provided by financing activities	3,564		2,343
Effect of exchange rate changes on cash and cash equivalents	345		795
Net increase (decrease) in cash and cash equivalents	11,521		(18,979)
Cash and cash equivalents at beginning of period	83,863	[1]	81,665
Cash and cash equivalents at end of period	$ 95,384		$ 62,686

[1] Derived from audited financial statements.