Shareholder Rights Agreement (Narrative) (Details) (USD $)	12 Months Ended
Dec. 31, 2013
Warrants and Rights Note Disclosure [Abstract]
Portion of shares each Right can buy	0.01
Exercise price of participating cumulative preferred stock, per share	$ 150
Percentage of outstanding common stock shares to be acquired for exercise of rights (more than)	20.00%
Additional Percentage of Common Stock Outstanding Required to Become an Acquired Person	1.00%
Percentage of common stock ownership required in a tender offer for exercise of rights (or more than)	20.00%
Percentage of Assets or Earning Power Sold or Transferred For Exercise of Rights	50.00%
Share-Based Compensation Arrangement by Share-based Payment Award, Price Per RIght Redeemed by Board of DIrectors in Event Agreement is Not Approved	$ 0.01

Additional Percentage of Common Stock Outstanding Required to Become an Acquired Person

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Exercise Price of Participating Cumulative Preferred Stock, Per Share

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Percentage of Assets or Earning Power Sold or Transferred For Exercise of Rights

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Percentage of common stock ownership required in a tender offer for exercise of rights.

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Percentage of outstanding common stock shares to be acquired for exercise of rights.

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Portion of shares each Right can buy

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Share-Based Compensation Arrangement by Share-based Payment Award, Price Per RIght Redeemed by Board of DIrectors in Event Agreement is Not Approved

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