Discontinued Operations Business Units Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current Assets
Assets of Disposal Group, Including Discontinued Operation, Current	$ 718	$ 694
Current Liabilities
Total current liabilities of discontinued operations	171	1,654
Noncurrent liabilities of discontinued operations	0	215
Medical Products and Semiconductor Business Unit [Member]
Current Assets
Restricted cash	718	0
Accounts Receivable - trade, net	0	307
Inventories, net	0	337
Prepaid expense and other current assets	0	50
Assets of Disposal Group, Including Discontinued Operation, Current	718	694
Net property and equipment	0	1,927
Disposal Group Including Discontinued Operations Intangible Assets and Other Assets	0	66
Total Assets of discontinued operations	718	2,687
Current Liabilities
Accounts payable	0	1,206
Accrued liabilities	171	253
Disposal Group, Including Discontinued Operation, Deferred Revenue	0	195
Total current liabilities of discontinued operations	171	1,654
Noncurrent liabilities of discontinued operations	0	215
Total liabilities of discontinued operations	$ 171	$ 1,869