Consolidated Statements of Cash Flows Statement (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Loss from continuing operations	$ 2,501	$ (9,818)
Loss from discontinued operation	(1,081)	(13,023)
Net loss	1,420	(22,841)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	3,815	6,627
Allowance for doubtful accounts	156	486
Inventory lower-of-cost-or-market adjustments	210	205
Stock-based compensation expense	306	637
Loss on asset disposals	78	148
Reduction of previously-estimated asset disposal loss	(947)	(3,723)
Deferred income taxes, net of valuation allowances	431	290
Changes in operating assets and liabilities:
Trade receivables	(4,580)	7,247
Inventories	(1,287)	6,343
Prepaids and other current assets	1,117	458
Income taxes	(127)	12,372
Trade payables	4,041	(12,620)
Accrued liabilities, including warranty obligations	(35)	(6,288)
Net cash provided by (used in) operating activities	4,598	(10,659)
Cash flows from investing activities:
Proceeds from sale of discontinued operation	1,303	7,266
Proceeds from other asset sales	0	16
Purchases of software and equipment	(2,506)	(222)
Net decrease in restricted cash	351	4,582
Net cash provided by (used in) investing activities	(852)	11,642
Cash flows from financing activity:
Proceeds from long-term borrowings	0	5,000
Financing costs	(35)	(324)
Proceeds from exercise of stock options	3	0
Net cash used in financing activities	(32)	4,676
Net effect of currency exchange rate changes	(583)	1,348
Net increase (decrease) in cash and cash equivalents	3,131	7,007
Cash and cash equivalents, beginning of year	14,296	7,289
Cash and cash equivalents, end of period	17,427	14,296
Supplemental disclosure of cash flow information:
Cash refunded for income taxes, net of payments	$ 22	$ 12,455