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	$ (2,456)	$ (12,195)
Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities:
Depreciation and amortization	562	830
Loss on disposal of assets, net	8	3
Impairment of property, plant and equipment		35
Provision (recovery) for bad debts	27	(47)
Provision for inventory excess and obsolescence	118
Amortization of discounts on term loan payable	78	17
Amortization of debt issuance costs	99	39
Stock-based compensation	1,000	499
Other equity instruments compensation	226
Other non-cash compensation	187	24
Deferred income taxes	(2)	43
Changes in operating assets and liabilities:
Accounts receivable	(4,770)	1,415
Inventory	(2,954)	(571)
Prepaid expenses and other assets	58	407
Customer deposits	(5,697)	8,418
Accounts payable and accrued liabilities	2,359	(1,206)
Deferred revenue	(145)	(1,278)
Net cash and cash equivalents used in operating activities	(11,302)	(3,567)
Cash Flows From Investing Activities:
Additions to property, plant and equipment	(294)	(220)
Net cash and cash equivalents used in investing activities	(294)	(220)
Cash Flows From Financing Activities:
Proceeds from term loan payable		3,000
Payments under term loan payable	(2,700)
Payment of debt issuance costs		(85)
Proceeds from exercise of warrants	8
Payment to repurchase equity warrants	(130)
Proceeds from equity offering, net of expenses	17,237
Proceeds from exercise of stock options	1,218	148
Net cash and cash equivalents provided by financing activities	15,633	3,063
Effect of exchange rate changes	26	(25)
Increase (decrease) in cash and cash equivalents	4,063	(749)
Cash and cash equivalents, beginning of year	1,694	2,975
Cash and cash equivalents, end of period	5,757	2,226
Cash paid during the period for:
Interest	81	113
Income taxes	$ 8	$ (95)