XML 56 R43.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Note 9 - Commitments and Contingencies (Details Textual) |  |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Sep. 27, 2016 USD ($) $ / shares | Sep. 15, 2014 ft² shares | Dec. 15, 2009 USD ($) $ / shares shares | Sep. 30, 2016 USD ($) $ / shares | Sep. 30, 2015 USD ($) | Sep. 30, 2016 USD ($) $ / shares shares | Sep. 30, 2015 USD ($) | Dec. 31, 2012 $ / shares
Charlottesville, Virginia [Member] | Building [Member] |  |  |  |  |  |  |  |
Operating Leases, Rent Expense, Net |  |  |  | $ 18,200 | $ 16,500 | $ 53,500 | $ 49,500 |
Buffalo Grove, Illinois [Member] | Building [Member] | Long Term Operating Lease Agreement [Member] |  |  |  |  |  |  |  |
Operating Leases, Rent Expense, Net |  |  |  | $ 15,300 |  | $ 61,000 |  |
Area of Real Estate Property | ft² |  | 2,900 |  |  |  |  |  |
David G. Schmidt v. Diffusion Pharmaceuticals, LLC [Member] | Scenario, Actual [Member] |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares |  |  | $ 3.50 |  |  |  |  | $ 1
David G. Schmidt v. Diffusion Pharmaceuticals, LLC [Member] | If Conversion Price $1.00 per Unit Rather Than $3.50 per Unit [Member] |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued | shares |  |  | 1,071,432.5 |  |  |  |  |
David G. Schmidt v. Diffusion Pharmaceuticals, LLC [Member] |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  |  | $ 1,500,000 |  |  |  |  |
Amended David G. Schmidt V Diffusion Pharmaceuticals LLC [Member] | If Conversion Price $1.00 per Unit Rather Than $3.50 per Unit [Member] |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares |  |  |  | $ 1 |  | $ 1 |  |
Debt Conversion, Converted Instrument, Shares Issued | shares |  | 1,071,432.5 |  |  |  |  |  |
Amended David G. Schmidt V Diffusion Pharmaceuticals LLC [Member] |  |  |  |  |  |  |  |
Loss Contingency, Damages Sought, Shares | shares |  |  |  |  |  | 391,358 |  |
Loss Contingency, Damages Sought, Proceeds From Plaintiff |  |  |  |  |  | $ 1,071,432.50 |  |
Settlement Agreement [Member] | 2016 Convertible Notes [Member] |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares | $ 3.50 |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ 1,880,000 |  |  |  |  |  |  |
Litigation Settlement, Expense | $ 2,500,000 |  |  |  |  |  |  |
2016 Convertible Notes [Member] |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares |  |  |  | $ 3.50 |  | $ 3.50 |  |
Accrued Rent |  |  |  | $ 19,403 |  | $ 19,403 |  |
Debt Conversion, Original Debt, Amount |  |  |  |  |  | 695,000 |  |
Litigation Settlement, Expense |  |  |  |  |  | $ 2,500,000 |  |

X
- Definition The amount of cash the plaintiff seeks to pay for the exchange of the entity's shares in the legal matter. + References No definition available. + Details
Name: | dffn_LossContingencyDamagesSoughtProceedsFromPlaintiff
Namespace Prefix: | dffn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares the plaintiff seeks in the legal matter. + References No definition available. + Details
Name: | dffn_LossContingencyDamagesSoughtShares
Namespace Prefix: | dffn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for contractual rent under lease arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(15)(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(15)(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(24)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(20)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AccruedRentCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Area of a real estate property. + References No definition available. + Details
Name: | us-gaap_AreaOfRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_DebtConversionConvertedInstrumentSharesIssued1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 + Details
Name: | us-gaap_DebtConversionOriginalDebtAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
Name: | us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=dffn_CharlottesvilleVirginiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=dffn_BuffaloGroveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseArrangementTypeAxis=dffn_LongTermOperatingLeaseAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationCaseAxis=dffn_DavidGSchmidtVDiffusionPharmaceuticalsLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_ScenarioActualMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=dffn_IfConversionPrice100PerUnitRatherThan350PerUnitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationCaseAxis=dffn_AmendedDavidGSchmidtVDiffusionPharmaceuticalsLlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationCaseAxis=dffn_SettlementAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=dffn_ConvertibleNotes2016Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |