Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net loss	$ (10,149)	$ (14,405)
Adjustments to reconcile net loss to cash flows from operating activities:
Depreciation and amortization	1,063	771
Share-based compensation	133	70
Change in fair value of warrants	30	88
Changes in operating assets and liabilities:
Accounts receivable, net	27	(616)
Product inventories	645	(1,211)
Prepaid expenses and other current assets	(858)	(356)
Deferred contract costs	2,701	(3,331)
Trade accounts payable	263	(203)
Accrued salaries and benefits	45	(280)
Accrued warranty	216	43
Deferred revenues	(1,527)	3,710
Accrued liabilities	(8)	24
Cash flows from operating activities	(7,419)	(15,696)
Cash flows from investing activities:
Decrease (increase) in restricted cash	3,007	(293)
Purchase of land use right	(8,591)
Purchase of property, plant and equipment	(6,268)	(170)
Cash flows from investing activities	(11,852)	(463)
Cash flows from financing activities:
Issuance of common shares for cash, net of issuance costs		1,050
Deferred income	6,162
Proceeds from notes payable	5,893	1,000
Repayment of notes payable	(1,025)
Repayment of capital lease obligation	(3)	(4)
Cash flows from financing activities	11,027	2,046
Effect of exchange rate changes on cash and cash equivalents	(835)	(193)
Decrease in cash and cash equivalents	(9,079)	(14,306)
Cash and cash equivalents, beginning of period	12,372	46,519
Cash and cash equivalents, end of period	3,293	32,213
Supplemental disclosures:
Cash paid for interest	221	28
Cash paid for income taxes	0	0
Non-cash transactions:
Transfer of inventory to property, plant and equipment	$ 1,593