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Stockholders' Equity - Fair Value Assumptions (Details) - Warrants to the Lenders Under the Loan Agreement | Apr. 03, 2017 $ / shares
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Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Current stock price (USD per share) | $ 8.88
Expected volatility rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Warrants outstanding, measurement input | 0.4829
Risk-free rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Warrants outstanding, measurement input | 0.0188
Expected dividend yield |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Warrants outstanding, measurement input | 0
Loan and Security Agreement |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Warrant exercise price (USD per share) | $ 10.25
Expected term of warrants (in years) | 5 years

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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