Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating Activities
Net income (loss)	$ (7,163)	$ 12,487
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	1,528	1,222
Write-down of inventory	1,330	564
Impairment of long-lived assets	688	0
Deferred income taxes	0	(2,010)
Non-cash stock based compensation expense	903	743
Provision for allowance for doubtful accounts	133	47
Changes in operating assets and liabilities:
Restricted cash	2,878	(4,702)
Accounts receivable	12,009	(20,263)
Inventories	(2,487)	(9,882)
Accrued income taxes	(4,105)	3,725
Prepaid expenses and other assets	198	(2,140)
Accounts payable	(2,073)	6,479
Accrued liabilities and customer deposits	(8,379)	16,149
Deferred profit	(8,115)	8,814
Net cash used in operating activities	(12,655)	11,233
Investing Activities
Purchases of property, plant and equipment	(1,062)	(2,866)
Investments in acquisitions, net of cash	0	(1,055)
Net cash used in investing activities	(1,062)	(3,921)
Financing Activities
Proceeds from issuance of common stock	0	1,316
Repurchase of common stock	(4,080)	0
Payments on long-term obligations	(22)	(62)
Payment for license fee	(44)	0
Excess tax benefit of stock options	0	728
Net cash provided by (used in) financing activities	(4,146)	1,982
Effect of Exchange Rate Changes on Cash	(750)	1,470
Net Increase (Decrease) in Cash and Cash Equivalents	(18,613)	10,764
Cash and Cash Equivalents, Beginning of Period	67,382	56,764
Cash and Cash Equivalents, End of Period	48,769	67,528
Supplemental Cash Flow Information:
Income tax payments	3,596	6,265
Supplemental Non-cash Financing Activities:
Transfer inventory to capital equipment	838	0
Issuance of common stock for acquisition of interest in Kingstone	$ 0	$ 3,835