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Permanent Equity (Stockholder Rights Plan) (Details) $ / shares in Units, $ in Thousands | 12 Months Ended
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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 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 + Details
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