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Stockholders' Equity and Stock-based Compensation - Schedule of Warrants Activity (Details) - Warrant [Member]	3 Months Ended
	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 arrangement by share based payment award non options outstanding weighted average exercise price.

+ References

No definition available.

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- Definition

Share based compensation arrangements by share based payment award non options exercised in period weighted average exercise price.

+ References

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- Definition

Sharebased compensation arrangement by sharebased payment award non options exercisable weighted average remaining contractual term.

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- Definition

Number of non-option equity instruments exercised by participants.

+ References

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-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

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- Definition

Number of shares under non-option equity instrument agreements for which rights to exercise lapsed.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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Net number of non-option equity instruments granted to participants.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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-Name Accounting Standards Codification
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