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Stockholders' Equity and Stock-based Compensation - Schedule of Warrants Outstanding and Exercisable (Details) | 3 Months Ended
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Mar. 31, 2019 $ / shares shares
Warrant [Member] |
Warrants Outstanding | shares | 1,732,918
Exercise Price | $ / shares | $ 1.94
Lender Warrants [Member] |
Issue Date | May 11, 2015
Warrants Outstanding | shares | 125,000
Exercise Price | $ / shares | $ 1.79
Expiration Date | May 11, 2025
Settlement Warrants [Member] |
Issue Date | Aug. 16, 2016
Warrants Outstanding | shares | 40,000
Exercise Price | $ / shares | $ 3.75
Expiration Date | Aug. 16, 2021
PIPE Investor and Placement Agent Warrants [Member] |
Issue Date | Dec. 27, 2016
Warrants Outstanding | shares | 952,532
Exercise Price | $ / shares | $ 1.79
Expiration Date | Dec. 27, 2019
Lender Warrants One [Member] |
Issue Date | Jul. 19, 2017
Warrants Outstanding | shares | 615,386
Exercise Price | $ / shares | $ 2.08
Expiration Date | Jul. 19, 2024

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- Definition Warrants issuance date. + References No definition available. + Details
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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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