CONSOLIDATED STATEMENTS OF CASH FLOWS - UNAUDITED (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (13,691)	$ (7,874)
Adjustments to reconcile net loss to net cash provided by (used in) operating ativities:
Depreciation and amortization	8,132	8,691
Provision for inventory losses	2,035	1,538
Provision for doubtful accounts	51	28
Loss on disposal of assets	120	61
Accounting charge related to stock-based compensation expense	280	464
Deferred income taxes	(292)	(2,024)
Changes in operating assets and liabilities:
Accounts receivable	206	478
Income tax receivable	(20)	7,079
Inventories	1,974	4,411
Prepaid expenses and other current assets	1,297	53
Other assets	217	428
Accounts payable	1,513	(6,062)
Accrued expenses	463	592
Taxes payable	(1,606)	699
Commissions and incentives payable	(1,716)	(3,697)
Deferred revenue	757	72
Net cash provided by (used in) operating activities	(280)	4,937
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	(591)	(1,529)
Proceeds from sales of assets	54	0
Change in restricted cash	91	1,687
Net cash provided by (used in) investing activities	(446)	158
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from stock options exercised	0	28
Repayment of capital lease obligations	1,079	917
Repurchase of common stock	(5)	0
Net cash used in financing activities	(1,084)	(889)
Effect of currency exchange rate changes on cash and cash equivalents	1,054	107
Net decrease in cash and cash equivalents	(756)	4,313
Cash and cash equivalents at the beginning of period	21,584	17,367
Cash and cash equivalents at the end of period	20,828	21,680
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Income taxes received (paid), net	(592)	7,228
Interest paid on capital leases	$ 128	$ 69