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Stockholders' Equity - Summary of Warrant Activity (Details)	6 Months Ended
	Jun. 30, 2018 $ / shares shares
Number of Shares, Exercisable	2,433,613
Common Stock Warrant [Member]
Number of Shares, Outstanding at beginning of year	1,303,832
Number of Shares, Issued	295,000
Number of Sharess, Exercised
Number of Shares, Forfeited	(182,200)
Number of Shares, Expired
Number of Shares, Outstanding at end of year	1,416,633
Number of Shares, Exercisable	252,125
Weighted Average Exercise Price, Outstanding at beginning of year | $ / shares	$ 1.48
Weighted Average Exercise Price, Issued | $ / shares	1.74
Weighted Average Exercise Price, Exercised | $ / shares
Weighted Average Exercise Price, Forfeited | $ / shares	1.33
Weighted Average Exercise Price, Expired | $ / shares
Weighted Average Exercise Price, Outstanding at end of year | $ / shares	1.49
Weighted Average Exercise Price, Exercisable | $ / shares	$ 1.46
Weighted Average Remaining Contractual Life, Outstanding	4 years 1 month 9 days
Weighted Average Remaining Contractual Life, Exercisable	4 years 22 days
Common Stock Financing Warrant [Member]
Number of Shares, Outstanding at beginning of year	1,289,172
Number of Shares, Issued	1,986,558
Number of Sharess, Exercised	(842,117)
Number of Shares, Forfeited
Number of Shares, Expired
Number of Shares, Outstanding at end of year	2,433,613
Number of Shares, Exercisable	2,433,613
Weighted Average Exercise Price, Outstanding at beginning of year | $ / shares	$ 0.29
Weighted Average Exercise Price, Issued | $ / shares	1.24
Weighted Average Exercise Price, Exercised | $ / shares	0.20
Weighted Average Exercise Price, Forfeited | $ / shares
Weighted Average Exercise Price, Expired | $ / shares
Weighted Average Exercise Price, Outstanding at end of year | $ / shares	1.10
Weighted Average Exercise Price, Exercisable | $ / shares	$ 1.10
Weighted Average Remaining Contractual Life, Outstanding	4 years 8 months 12 days
Weighted Average Remaining Contractual Life, Exercisable	4 years 8 months 12 days

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- Definition

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+ References

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+ References

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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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