Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash Flows From Operating Activities:
Net loss	$ (5,199)	$ (3,549)
Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities:
Depreciation and amortization	298	247
Loss on disposal of assets, net		6
Provision for bad debts	91	315
Amortization of discounts on lines of credit	36	7
Amortization of debt issuance costs	81	15
Stock-based compensation	748	923
Other equity instruments compensation	64	23
Other non-cash compensation	124	124
Deferred income taxes	(71)
Changes in operating assets and liabilities:
Restricted cash		(106)
Accounts receivable	112	(992)
Inventory	(1,417)	612
Prepaid expenses and other assets	59	723
Customer deposits	(408)	7
Accounts payable and accrued liabilities	490	(2,144)
Deferred revenue	(103)	515
Net cash and cash equivalents used in operating activities	(5,095)	(3,274)
Cash Flows From Investing Activities:
Additions to property, plant, and equipment	(331)	(457)
Purchased other intangible assets	(10)
Net cash and cash equivalents used in investing activities	(341)	(457)
Cash Flows From Financing Activities:
Borrowings under lines of credit	19,550	2,350
Payments under lines of credit	(15,195)	(415)
Payment of debt issuance costs		(295)
Proceeds from exercise of stock options and warrants	697	428
Net cash and cash equivalents provided by financing activities	5,052	2,068
Effect of exchange rate changes	(58)	(37)
Change in cash and cash equivalents	(442)	(1,700)
Cash and cash equivalents, beginning of period	2,543	3,307
Cash and cash equivalents, end of period	2,101	1,607
Supplemental cash flow disclosure:
Interest paid	81	10
Income taxes paid	$ 49	$ 29