Investment in Marketable Securities - Real D (Details) (USD $)	1 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2011	Jun. 30, 2011	Dec. 31, 2010
Investment in Marketable Securities - Real D (Textuals) [Abstract]
Number of options to purchase common stock			1,085,828
Exercise price of options	$ 0.00667
Investment in Real D through options			18,909,000
Additional options earned to purchase common stock of Real D		136,952
Remaining term of license agreement, in years		7.50
Approximate increase in investment in Real D and its deferred lease incentive liability		3,402,000
Shares owned by company in Real D		1,222,780
Estimated fair value of company owned shares in Real D		28,600,000
Unrealized holding gain		$ 2,802,000