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Issuance of Common Stock, Warrants and Convertible Preferred Stock - Summary of Warrant Activity (Details) - USD ($) | 6 Months Ended | 12 Months Ended
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Jun. 30, 2017 | Dec. 31, 2016
Warrants Outstanding, Beginning Balance | 846,765 |
Warrants Outstanding, Granted | 400,019 |
Warrants Outstanding, Exercised | (40,834) |
Warrants Outstanding, Forfeited and Cancelled | (74,873) |
Warrants Outstanding, Ending Balance | 1,131,077 | 846,765
Warrants Outstanding Weighted Average Remaining Life, Beginning Balance | 2 years 9 months 7 days |
Warrants Outstanding Weighted Average Exercise Price, Beginning Balance | $ 6.48 |
Warrants Outstanding Weighted Average Exercise Price, Granted | 7.50 |
Warrants Outstanding Weighted Average Exercise Price, Exercised | 3.90 |
Warrants Outstanding Weighted Average Exercise Price, Forfeited and Cancelled | 6.00 |
Warrants Outstanding Weighted Average Exercise Price, Ending Balance | $ 6.88 | $ 6.48
Warrants Outstanding Aggregate Intrinsic Value, Beginning Balance | $ 0 |
Warrants Outstanding Aggregate Intrinsic Value, Ending Balance | $ 0 | $ 0
Warrant [Member] |  |
Warrants Outstanding, Beginning Balance | 846,765 |
Warrants Outstanding, Granted |  | 1,435,639
Warrants Outstanding, Exercised |  | (483,773)
Warrants Outstanding, Forfeited and Cancelled |  | (105,101)
Warrants Outstanding, Ending Balance |  | 846,765
Warrants Outstanding Weighted Average Remaining Life, Beginning Balance |  | 2 years 9 months 7 days
Warrants Outstanding Weighted Average Exercise Price, Beginning Balance | $ 6.48 |
Warrants Outstanding Weighted Average Exercise Price, Granted |  | 6.18
Warrants Outstanding Weighted Average Exercise Price, Exercised |  | 3.90
Warrants Outstanding Weighted Average Exercise Price, Forfeited and Cancelled |  | 6.00
Warrants Outstanding Weighted Average Exercise Price, Ending Balance |  | $ 6.48
Warrants Outstanding Aggregate Intrinsic Value, Beginning Balance |  |
Warrants Outstanding Aggregate Intrinsic Value, Ending Balance |  |

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- Definition Share-based compensation arrangement by share-based payment award, equity instruments other than options, exercised in period. + References No definition available. + Details
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- Definition Share-based compensation arrangement by share-based payment award, equity instruments other than options, forfeitures, weighted average exercised fair value. + References No definition available. + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(3) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options. + References No definition available. + Details
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