Schedule of The Company's Investment in Polaroid (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Net investment	$ 1,747	$ 1,769
Polaroid Corporation [Member]
Capital invested	3,120	3,109
Equity in earnings	269	259
Capital returned	(1,662)	(1,618)
Net investment	1,727	1,750
Polaroid Corporation [Member] | Class A [Member]
Capital invested	2,492	2,492
Equity in earnings	219	209
Capital returned	(1,335)	(1,300)
Net investment	1,376	1,401
Polaroid Corporation [Member] | Class D [Member]
Capital invested	628	617
Equity in earnings	50	50
Capital returned	(327)	(318)
Net investment	$ 351	$ 349