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Stockholders' Equity and Stock-based Compensation - Schedule of Warrants Activity (Details) - Warrant [Member] | 3 Months Ended
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Mar. 31, 2019 $ / shares shares
Number of Shares Warrants Outstanding, beginning balance | 2,206,973
Number of Shares Warrants Outstanding, Granted |
Number of Shares Warrants Outstanding, Exercised | (474,055)
Number of Shares Warrants Outstanding, Expired |
Number of Shares Warrants Outstanding, ending balance | 1,732,918
Weighted average remaining contractual life of the outstanding warrants in years | 2 years 9 months 14 days
Weighted avg. Exercise Price, outstanding, beginning balance | $ / shares | $ 1.91
Weighted avg. Exercise Price, exercised | $ / shares | 1.79
Weighted avg. Exercise Price, outstanding and exercisable, ending balance | $ / shares | $ 1.94

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- Definition Share based compensation arrangements by share based payment award non options exercised in period weighted average exercise price. + References No definition available. + Details
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- Definition Sharebased compensation arrangement by sharebased payment award non options exercisable weighted average remaining contractual term. + References No definition available. + Details
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- Definition Number of non-option equity instruments exercised by participants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Net number of non-option equity instruments granted to participants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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