Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Operating activities
Net loss	$ (5,142)	$ (18,098)
Loss from discontinued operations, net of tax	(621)	(8,298)
Loss from continuing operations	(4,521)	(9,800)
Adjustments to reconcile loss from continuing operations to net cash used in operating activities:
Depreciation and amortization	514	582
Stock-based compensation	55	66
Provision for losses on receivables	126	170
Gain on sale of property and equipment	(57)	0
Gain on valuation of derivative	(74)	0
Amortization of discount on debt	152	0
Goodwill and asset impairment charges	35	485
Changes in operating assets and liabilities, net of acquisition:
Accounts receivable	290	(444)
Inventories	536	974
Prepaid expenses and other assets	470	(268)
Accounts payable	(429)	(176)
Deferred revenue	(3)	14
Accrued expenses	189	(710)
Income taxes payable	(15)	(36)
Net cash used in operating activities-continuing operations	(2,732)	(9,143)
Net cash used in operating activities-discontinued operations	(163)	(1,040)
Net cash used in operating activities	(2,895)	(10,183)
Investing Activities
Acquisition of business, net of cash acquired	(1,827)	0
Purchase of property and equipment	(165)	(348)
Proceeds from short-term investments	0	1,086
Proceeds from sale of property and equipment	1,313	0
Payments for intangibles	(10)	(2)
Net cash (used in) provided by investing activities-continuing operations	(689)	736
Net cash provided by investing activities-discontinued operations	975	3,041
Net cash provided by investing activities	286	3,777
Financing activities
Proceeds from short-term note and long-term debt	1,400	1,443
Payments on long-term debt and capital lease obligations	(1,495)	(136)
Proceeds from the sale of common stock	8,225	0
Purchase and retirement of treasury stock	0	(178)
Net cash provided by financing activities-continuing operations	8,130	1,129
Net cash used in financing activities-discontinued operations	(214)	(448)
Net cash provided by financing activities	7,916	681
Net increase (decrease) in cash and cash equivalents	5,307	(5,725)
Cash and cash equivalents at beginning of year	2,564	8,289
Cash and cash equivalents at end of year	$ 7,871	$ 2,564