Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash Flows From Operating Activities:
Net loss	$ (1,503)	$ (9,469)
Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities:
Depreciation and amortization	411	571
Loss on disposal of assets, net	8	3
Impairment of property, plant and equipment		35
Provision for bad debts	20	51
Provision for inventory excess and obsolescence	118
Amortization of discounts on term loan payable	78	5
Amortization of debt issuance costs	99	8
Stock-based compensation	676	386
Other equity instruments compensation	210
Other non-cash compensation	124
Deferred income taxes	(2)	28
Changes in operating assets and liabilities:
Accounts receivable	(3,086)	2,503
Inventory	(1,160)	(1,423)
Prepaid expenses and other assets	486	90
Customer deposits	(4,959)	6,326
Accounts payable and accrued liabilities	1,234	(730)
Deferred revenue	143	(1,047)
Net cash and cash equivalents used in operating activities	(7,103)	(2,663)
Cash Flows From Investing Activities:
Additions to property, plant and equipment	(157)	(184)
Net cash and cash equivalents used in investing activities	(157)	(184)
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 equity offering, net of expenses	17,325
Proceeds from exercise of stock options	964	42
Net cash and cash equivalents provided by financing activities	15,589	2,957
Effect of exchange rate changes	111	(190)
Increase (decrease) in cash and cash equivalents	8,440	(80)
Cash and cash equivalents, beginning of year	1,694	2,975
Cash and cash equivalents, end of period	10,134	2,895
Cash paid during the period for:
Interest	79	13
Income taxes	$ 8	$ (17)