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Equity Instruments (Details Textual) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Nov. 30, 2016 | Jul. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2016 | Jun. 30, 2016 | Jun. 02, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share Based Compensation Share Warrants Issued On Placement Agents For Registered Offering |  |  |  | 401,450 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |  |  |  | 441,999 |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |  |  |  | $ 3.23 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost |  | $ 318,000 |  |  |  |
Number Of Units Sold |  |  | 5,735,000 |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  | $ 1.86 | 1.86 |  |
Shares Issued, Price Per Share |  |  | 1.50 | $ 1.50 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value |  |  | 0.77 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value |  |  | $ 0.73 |  |  |
Selling, General and Administrative Expenses [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Class Of Warrants And Rights Issuance Cost |  |  | $ 7,000 | $ 596,000 |  |
Placement Agent warrants [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Warrants Not Settleable in Cash, Fair Value Disclosure |  |  | $ 80,000 | $ 80,000 |  |
Share Based Compensation Share Warrants Issued On Placement Agents For Registered Offering |  |  |  |  | 109,375 |
Share Based Compensation Share Warrants Issued To Investors | 401,450 |  |  | 88,032 |  |
Share Based Compensation Share Warrants Issued Weighted Average Exercise Price | $ 1.86 |  |  | $ 4.00 |  |
Placement Agent warrants [Member] | Over Allotment Warrants [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share Based Compensation Share Warrants Issued To Investors | 6,020,245 |  |  |  |  |
Share Based Compensation Share Warrants Issued Weighted Average Exercise Price | $ 1.86 |  |  |  |  |
Employee Stock Option [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross |  | 316,051 |  |  |  |
Employee Stock Option [Member] | Minimum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |  | $ 6.72 |  |  |  |
Employee Stock Option [Member] | Maximum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |  | $ 18.12 |  |  |  |
2015 Stock Option and Incentive Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance |  |  |  |  |  | 2,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  |  | 2,000,000 | 2,000,000 |  |

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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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- 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=6415400&loc=d3e5070-113901 + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + 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 (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition An excess of the fair value of the modified award over the fair value of the award immediately before the modification. + 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 (h)(2)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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