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Equity Instruments (Tables) | 6 Months Ended | 12 Months Ended
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Dec. 31, 2015 | Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | Aytu has computed the fair value of all options granted during the six months ended December 31, 2015 using the following assumptions:
Expected volatility |  |  | 75.00% |
Risk free interest rate |  |  | 1.08% – 2.08% |
Expected term (years) |  |  | 3.0 – 7.0 |
Dividend yield |  |  | 0% |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | Stock option activity is as follows:
|  | Number of Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life in Years
Outstanding June 30, 2015 |  |  | — |  |  | $ | — |  |  |  |  |
Granted |  |  | 3,695,000 |  |  | $ | 1.55 |  |  |  |  |
Exercised |  |  | — |  |  | $ | — |  |  |  |  |
Forfeited/Cancelled |  |  | — |  |  | $ | — |  |  |  |  |
Outstanding December 31, 2015 |  |  | 3,695,000 |  |  | $ | 1.55 |  |  |  | 9.80 |
Exercisable at December 31, 2015 |  |  | 1,120,000 |  |  | $ | 1.51 |  |  |  | 9.87 |
Available for grant at December 31, 2015 |  |  | 6,305,000 |  |  |  |  |  |  |  |  |
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] | The following table summarizes stock-based compensation expense for the three and six months ended December 31, 2015 and for the stock-based compensation expense related to the Luoxis and Vyrix options for the three and six months ended December 31, 2014:
|  | Three Months Ended December 31, |  | Six Months Ended December 31,
|  | 2015 |  | 2014 |  | 2015 |  | 2014
Research and development expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options |  | $ | 20,000 |  |  | $ | 117,000 |  |  | $ | 25,000 |  |  | $ | 207,000 |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options |  | $ | 163,000 |  |  | $ | 159,000 |  |  |  | 226,000 |  |  |  | 271,000 |
|  | $ | 183,000 |  |  | $ | 276,000 |  |  | $ | 251,000 |  |  | $ | 478,000 |
Unrecognized expense at December 31, 2015 |  | $ | 1,890,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average remaining years to vest |  |  | 3.16 |  |  |  |
| The following table summarizes stock-based compensation expense for the years ended June 30 2015 and 2014:
|  | Years Ended June 30,
|  | 2015 |  | 2014
Research and development expenses |  |  |  |  |  |  |  |
Stock options |  |  |  |  |  |  |  |
Luoxis |  | $ | 427,000 |  |  | $ | 206,000 |
Vyrix |  |  | 92,000 |  |  |  | 38,000 |
General and administrative expenses |  |  |  |  |  |  |  |
Stock options |  |  |  |  |  |  |  |
Luoxis |  |  | 316,000 |  |  |  | 152,000 |
Vyrix |  |  | 183,000 |  |  |  | 104,000 |
|  | $ | 1,018,000 |  |  | $ | 500,000 |
Unrecognized expense at June 30, 2015 |  |  |  |  |  |  |  |
Luoxis |  | $ | — |  |  |  |  |
Vyrix |  | $ | — |  |  |  |  |
Weighted average remaining years to vest |  |  |  |  |  |  |  |
Luoxis |  |  | — |  |  |  |  |
Vyrix |  |  | — |  |  |  |  |
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] | A summary of these warrants is as follows:
|  | Number of Warrants |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life in Years
Outstanding June 30, 2015 |  |  | 102,613 |  |  | $ | 4.53 |  |  |  | 2.92 |
Outstanding December 31, 2015 (unaudited) |  |  | 102,613 |  |  | $ | 4.53 |  |  |  | 2.41 |
| ### Aytu issued warrants in conjunction with its 2013 private placement. A summary of all warrants is as follows:
|  | Number of Warrants |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life
Outstanding June 30, 2013 |  |  | 102,613 |  |  | $ | 4.53 |  |  |  | 4.41 |
Outstanding June 30, 2014 |  |  | 102,613 |  |  | $ | 4.53 |  |  |  | 3.92 |
Outstanding June 30, 2015 |  |  | 102,613 |  |  | $ | 4.53 |  |  |  | 2.92 |
Luoxis Diagnostics [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |  | The assumptions are as follows:
|  | Years Ended June 30,
|  | 2015 |  | 2014
Expected volatility |  |  | 79% – 108% |  |  |  | 79% – 82% |
Risk free interest rate |  |  | 1.62% – 2.09% |  |  |  | 0.75% – 1.53% |
Expected term (years) |  |  | 5.5 – 7.0 |  |  |  | 5.0 – 6.5 |
Dividend yield |  |  | 0% |  |  |  | 0% |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |  | Stock option activity is as follows:
|  | Number of Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life |  | Aggregate Intrinsic Value
Outstanding June 30, 2013 |  |  | 396,994 |  |  | $ | 4.53 |  |  |  | 9.96 |  |  | $ | 1,272,000 |
Granted |  |  | 33,083 |  |  | $ | 4.53 |  |  |  |  |  |  |  |  |
Exercised |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Forfeited/Cancelled |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Outstanding June 30, 2014 |  |  | 430,077 |  |  | $ | 4.53 |  |  |  | 9.01 |  |  | $ | 1,374,000 |
Granted |  |  | 195,189 |  |  | $ | 7.25 |  |  |  |  |  |  |  |  |
Exercised |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Forfeited/Cancelled |  |  | (625,266 | ) |  | $ | 5.40 |  |  |  |  |  |  |  |  |
Outstanding June 30, 2015 |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Exercisable at June 30, 2015 |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Available for grant at June 30, 2015 |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Vyrix Pharmaceuticals Inc [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |  | The assumptions are as follows:
|  | Year Ended June 30, 2014
Expected volatility |  |  | 63% – 76% |
Risk free interest rate |  |  | 0.90% – 2.02% |
Expected term (years) |  |  | 5.0 – 6.5 |
Dividend yield |  |  | 0%
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] |  | Stock option activity is as follows:
|  | Number of Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life |  | Aggregate Intrinsic Value
Outstanding June 30, 2013 |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | — |
Granted |  |  | 117,053 |  |  | $ | 5.68 |  |  |  |  |  |  |  |  |
Exercised |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Forfeited/Cancelled |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Outstanding June 30, 2014 |  |  | 117,053 |  |  | $ | 5.68 |  |  |  | 9.54 |  |  | $ | 417,000 |
Granted |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Exercised |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Forfeited/Cancelled |  |  | (117,053 | ) |  | $ | 5.68 |  |  |  |  |  |  |  |  |
Outstanding June 30, 2015 |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Exercisable at June 30, 2015 |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Available for grant at June 30, 2015 |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + 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)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + 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)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51659978&loc=d3e25284-112666 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 28 -Article 5 + Details
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