Asset Liquidation Investments and Other Investments (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Net investment	$ 1,729	$ 2,426
Polaroid Corporation [Member]
Capital invested	3,109	3,053
Equity in earnings	166	167
Capital returned	(1,567)	(814)
Net investment	1,708	2,406
Class A [Member] \| Polaroid Corporation [Member]
Capital invested	2,492	2,447
Equity in earnings	136	137
Capital returned	(1,259)	(654)
Net investment	1,369	1,930
Class D [Member] \| Polaroid Corporation [Member]
Capital invested	617	606
Equity in earnings	30	30
Capital returned	(308)	(160)
Net investment	$ 339	$ 476

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33749-111570

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant