Available for Sale Marketable Debt Securities (Summary Amortized Cost and Estimated Fair Value) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Marketable Securities	$ 0
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	0	3,522,000
Unrealized Gain	0	19,000
Unrealized (Loss)	0	0
Estimated Fair Value	$ 0	$ 3,541,000