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Stock Options, Restricted Stock and Restricted Stock Units (Details 1) - Stock options [Member] - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule of stock option activity and other stock option information
Beginning Balance, Number of shares		100,000	100,000	100,000
Grants, Number of shares				100,000
Exercises, Number of shares
Forfeitures/Expirations, Number of shares				(100,000)
Ending Balance, Number of shares		100,000	100,000	100,000	100,000
Exercisable, Number of shares		100,000
Beginning Balance, Weighted-average exercise price		$ 51.95	$ 51.95	$ 107.28
Grants, Weighted-average exercise price				$ 51.95
Exercises, Weighted-average exercise price
Forfeitures/Expirations, Weighted-average exercise price				$ 107.28
Ending Balance, Weighted-average exercise price		$ 51.95	$ 51.95	$ 51.95	$ 107.28
Exercisable, Weighted-average exercise price		$ 51.95
Weighted-average remaining contractual life (years)		5 years 1 month 6 days	6 years	7 years	1 month 6 days
Exercisable, Weighted-average remaining contractual life (years)		5 years 1 month 6 days
Beginning Balance, Aggregate intrinsic value	[1]	$ 2,233
Ending Balance, Aggregate intrinsic value	[1]	817	$ 2,233
Exercisable, Aggregate intrinsic value	[1]	$ 817
[1] The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value (the difference between the Company's closing stock price on the respective trading day and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holder had all options been exercised on the respective trading day. The amount of intrinsic value will change based on the fair market value of the Company's common stock.

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- Definition

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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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.

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

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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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 price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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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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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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