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Fair Value Measurements - Financial Instruments Measured On Recurring Basis (Details) - USD ($) $ in Thousands | Jun. 30, 2016 | Dec. 31, 2015 | Jun. 30, 2015
--- | --- | --- | ---
Fair value measurements |  |  |
Transfers between levels | $ 0 |  | $ 0
Premium conversion derivative | 243 | $ 345 |
Recurring |  |  |
Fair value measurements |  |  |
Premium conversion derivative | 243 | 345 |
Total liabilities at Fair Value | 243 | 345 |
Recurring | Level 3 |  |  |
Fair value measurements |  |  |
Premium conversion derivative | 243 | 345 |
Total liabilities at Fair Value | 243 | 345 |
Nonrecurring |  |  |
Fair value measurements |  |  |
Total liabilities at Fair Value | $ 0 | $ 0 |

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- Definition Amount of transfers of assets and liabilities measured on a recurring basis between levels in fair value hierarchy. + References No definition available. + Details
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- Definition Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities. + References No definition available. + Details
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- Details
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- Details
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