Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash Flows From Operating Activities:
Net loss	$ (9,248)	$ (4,097)
Adjustments to reconcile net loss to net cash and cash equivalents used in operating activities:
Depreciation and amortization	439	373
Provision for bad debts	270	193
Provision for inventory excess and obsolescence	1,000
Amortization of discounts on lines of credit	79	25
Amortization of debt issuance costs	152	53
Stock-based compensation	1,239	1,280
Other equity instruments compensation	64	23
Other non-cash compensation	187	187
Deferred income taxes	(61)
Changes in operating assets and liabilities:
Accounts receivable	608	(1,603)
Inventory	(1,671)	112
Prepaid expenses and other assets	59	599
Customer deposits	(408)	87
Accounts payable and accrued liabilities	240	(1,593)
Deferred revenue	(43)	834
Net cash and cash equivalents used in operating activities	(7,094)	(3,527)
Cash Flows From Investing Activities:
Additions to property, plant, and equipment	(464)	(715)
Proceeds from disposal of long-lived assets		124
Purchased other intangible assets	(10)
Net cash and cash equivalents used in investing activities	(474)	(591)
Cash Flows From Financing Activities:
Borrowings under lines of credit	27,300	9,500
Payments under lines of credit	(23,403)	(7,311)
Payment of debt issuance costs	(34)	(304)
Payment of stock repurchase costs		(235)
Proceeds from equity offering, net of expenses	4,592
Proceeds from exercise of stock options and warrants	707	461
Net cash and cash equivalents provided by financing activities	9,162	2,111
Effect of exchange rate changes	14	(5)
Change in cash and cash equivalents	1,608	(2,012)
Cash and cash equivalents, beginning of period	2,543	3,307
Cash and cash equivalents, end of period	4,151	1,295
Supplemental cash flow disclosures:
Interest paid	165	45
Income taxes paid	$ 51	$ 51