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Compensation Plan (Deferred Stock) (Details) - Deferred Stock [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Compensation expense	$ 600	$ 600	$ 600
Unrecognized compensation expense	$ 600
Unrecognized compensation cost, recognition period	3 years
Director [Member] | Vesting in April 2018 [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred stock awards issued		5,370
Director [Member] | Vesting in April 2016 [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred stock awards issued		4,000
Director [Member] | Vesting in April 2017 [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred stock awards issued			7,002
Director [Member] | Vesting in April 2015 [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred stock awards issued			3,711
Director [Member] | Vesting in May 2019 [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred stock awards issued	5,292
Director [Member] | Vesting in May 2017 [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred stock awards issued	3,881

X

- Definition

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

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- Definition

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+ References

No definition available.

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- Definition

Number of shares issued pursuant to the terms of a deferred compensation arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (l)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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X

- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

No definition available.

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