XML 41 R31.htm IDEA: XBRL DOCUMENT
v3.23.2

Notes Payable - Schedule of notes payable (Details) - USD ($) | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Current portion |  |
Notes Payable, Current portion | $ 1,038,784 | $ 416,666
Debt Discount, Current portion | (91,621) | (67,770)
Net, Current portion | 947,163 | 348,896
Note payable, Non Current portion | 14,804,166 | 10,008,334
Debt Discount, Non-Current portion | (1,627,642) | (1,626,458)
Net, Non Current portion | 13,176,524 | 8,381,876
D&O insurance policy loan |  |
Current portion |  |
Notes Payable, Current portion | 205,451 | 0
Debt Discount, Current portion | 0 | 0
Net, Current portion | 205,451 | 0
Avenue - Note payable |  |
Current portion |  |
Notes Payable, Current portion | 833,333 | 208,333
Debt Discount, Current portion | (91,621) | (33,885)
Net, Current portion | 741,712 | 174,448
Note payable, Non Current portion | 9,804,166 | 5,004,167
Debt Discount, Non-Current portion | (1,120,372) | (813,229)
Net, Non Current portion | 8,683,794 | 4,190,938
Avenue - Convertible note payable |  |
Current portion |  |
Notes Payable, Current portion | 0 | 208,333
Debt Discount, Current portion | 0 | (33,885)
Net, Current portion | 0 | 174,448
Note payable, Non Current portion | 5,000,000 | 5,004,167
Debt Discount, Non-Current portion | (507,270) | (813,229)
Net, Non Current portion | $ 4,492,730 | $ 4,190,938

X
- Definition Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable, net of debt discount due within one year or the operating cycle if longer. + References No definition available. + Details
Name: | eyen_NotesPayableCurrentNetOfDebtDiscountCurrentCurrentPortion
Namespace Prefix: | eyen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Carrying value as of the balance sheet date of notes payable, net of debt discount (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. + References No definition available. + Details
Name: | eyen_NotesPayableNonCurrentNetOfDebtDiscountNonCurrentNonCurrentPortion
Namespace Prefix: | eyen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of debt discount to be amortized within one year or within the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482925/835-30-45-1A Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482949/835-30-55-8 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscountCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of debt discount to be amortized after one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482925/835-30-45-1A Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482949/835-30-55-8 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscountNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_LongTermNotesPayable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_NotesPayableCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_NotesPayableCurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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