Gain on Sale of Patent Assets (Detail Textuals) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012
Finite-Lived Intangible Assets [Line Items]
Gain on sale of patent assets	$ 71,226,000	$ 71,226,000
Wireless patent
Finite-Lived Intangible Assets [Line Items]
Sale of patent	75,000,000	75,000,000
Transaction cost	3,800,000	3,800,000
Gain on sale of patent assets	$ 71,226,000	$ 71,226,000