Shareholders' Equity (Stock Options Activity) (Details) - $ / shares	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stock Options, Number of Shares [Roll Forward]
Stock Options, Shares Outstanding at Beginning of Year	303,272	52,812	1,125
Stock Options, Shares Granted	283,857	255,227	54,060
Stock Options, Shares Exercised	(296)	0	0
Stock Options, Shares Forfeited/Expired	(4,519)	(4,767)	(2,373)
Stock Options, Shares Outstanding at End of Year	582,314	303,272	52,812
Stock Options, Weighted Average Exercise Price [Roll Forward]
Stock Options, Outstanding at Beginning of Year, Weighted Average Exercise Price (in usd per share)	$ 14.33	$ 30.75	$ 1,963.29
Stock Options, Granted, Weighted Average Exercise Price (in usd per share)	14.84	15.20	7.86
Stock Options, Exercised, Weighted Average Exercise Price (in usd per share)	8.40	0.00	0.00
Stock Options, Forfeited/Expired, Weighted Average Exercise Price (in usd per share)	17.39	242.98	425.40
Stock Options, Outstanding at End of Year, Weighted Average Exercise Price (in usd per share)	$ 14.56	$ 14.33	$ 30.75
Stock options and awards:
Stock Options, Shares Exercisable at End of Year	68,023	12,712	666
Stock Options, Exercisable at End of Year, Weighted Average Exercise Price (in usd per share)	$ 13.45	$ 15.02	$ 1,823.23

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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