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	$ (3,343)	$ (2,653)
Less: Income from discontinued operations	150	968
Loss from continuing operations, net of taxes	(3,493)	(3,621)
Adjustments to reconcile net loss to net cash used in operating activities :
Depreciation and amortization	532	478
Share-based compensation expense	269	360
Deferred income tax provision	16
(Increase) decrease in :
Receivables	(445)	353
Inventories	(28)	(581)
Other current assets	(191)	(184)
Other assets	18	(42)
Increase (decrease) in :
Accounts payable	(221)	117
Accrued expenses	(180)	86
Deferred revenue	17	239
Net operating activities from discontinued operations	150	940
Net cash used in operating activities	(3,556)	(1,855)
Cash Flows from Investing Activities :
Purchase of property and equipment	(515)	(1,213)
Net investing activities from discontinued operations		(65)
Net cash used in investing activities	(515)	(1,278)
Cash Flows from Financing Activities :
Proceeds from employee stock purchase plan	4	7
Restricted cash requirement		200
Repayments on financing obligations	(37)	(208)
Net cash used in financing activities	(33)	(1)
Effect of exchange rate changes on cash	(48)	4
Net decrease in Cash and Cash Equivalents	(4,152)	(3,130)
Cash and Cash Equivalents, Beginning of Period	18,145	10,665
Cash and Cash Equivalents, End of Period	13,993	7,535
Supplemental Cash Flow Disclosure :
Cash paid for taxes, net of tax refunds	39	23
Cash paid for interest	14	20
Noncash investing activity, purchase of property and equipment	50
Noncash investing activity, capital lease obligations	$ 254	$ 271