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Permanent Equity (Stockholder Rights Plan) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) $ / shares shares
Permanent Equity [Line Items]
Repurchase of warrants, price per share	$ 0.001
Aggregate redemption price of warrants | $	$ 15
Series C Junior Participating Preferred Stock [Member]
Permanent Equity [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 100.00
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | shares	0.0001
Class of Warrant or Right, Exercise Trigger, Percentage of Common Stock Owned by Individual or Affiliates	4.95%

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- Definition

Class of Warrant or Right, Exercise Trigger, Percentage of Common Stock Owned by Individual or Affiliates

+ References

No definition available.

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Permanent equity.

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- Definition

Repurchase of warrants, price per share

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No definition available.

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

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- Definition

The aggregate amount paid by the entity to reacquire the right to purchase equity shares at a predetermined price, usually issued together with corporate debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

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