Significant Accounting Policies (Narrative) (Details)		12 Months Ended
	Aug. 03, 2015 $ / shares shares	Dec. 31, 2011 USD ($)	Dec. 31, 2015 $ / shares shares	Aug. 02, 2015 shares	Dec. 31, 2014 $ / shares shares
Reverse stock split, description	1-for-50 (1:50) reverse stock split of its common stock, par value $0.01 per share
Conversion ratio of reverse stock split	50
Common stock, shares authorized | shares	670,000,000		670,000,000	445,000,000	670,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.01		$ 0.01		$ 0.01
Patents [Member]
Patents acquired | $		$ 493,000