Commitments, Contingencies and Other Matters (Details 2) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
Sep. 30, 2012	Dec. 31, 2011
Reconciliation of short-term liability
Balance at the beginning of the period	$ 956	$ 714
Restructuring	1,600	1,034
Short-term/long-term reclassification		58
Cash payments	(956)	(850)
Balance at the end of the period	1,600	956
Reconciliation of long-term liability
Balance at the beginning of the period		58
Short-term/long-term reclassification		(58)
LED And Solar
Reconciliation of short-term liability
Balance at the beginning of the period	534
Restructuring	561	672
Cash payments	(546)	(138)
Balance at the end of the period	549	534
Data Storage
Reconciliation of short-term liability
Balance at the beginning of the period	128	178
Restructuring	983	51
Short-term/long-term reclassification		58
Cash payments	(137)	(159)
Balance at the end of the period	974	128
Reconciliation of long-term liability
Balance at the beginning of the period		58
Short-term/long-term reclassification		(58)
Unallocated Corporate Amount
Reconciliation of short-term liability
Balance at the beginning of the period	294	536
Restructuring	56	311
Cash payments	(273)	(553)
Balance at the end of the period	$ 77	$ 294

Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

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