Exit Fee Charged

No definition available.

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Namespace Prefix:	eypt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line of credit facility exit fees percentage.

+ References

No definition available.

+ Details

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- Definition

Payment accrued and unpaid interest through the date of the secured term loan refinancing

+ References

No definition available.

+ Details

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Namespace Prefix:	eypt_
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Balance Type:	debit
Period Type:	duration

- Definition

Percentage of accounts receivable eligible for maximum amount borrowing.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Upfront cash payment.

+ References

No definition available.

+ Details

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Namespace Prefix:	eypt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
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-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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Balance Type:
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- Details

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Namespace Prefix:
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Balance Type:
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- Details

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Subsequent Events - Additional Information (Detail) - USD ($)				3 Months Ended		12 Months Ended
	Mar. 09, 2022	Dec. 17, 2020	Feb. 13, 2019	Mar. 31, 2022	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Subsequent Event [Line Items]
Gain (loss) on extinguishment of debt						$ 2,065,000	$ (905,000)
Senior Secured Term Loan [Member] \| CRG Servicing LLC [Member]
Subsequent Event [Line Items]
Senior secured facility			$ 60,000,000
Proceed from senior secured facility					$ 0
Maturity date			Dec. 31, 2023
Repayment of senior secured term loan		$ 13,800,000
Payment of exit fee upon repayment of secured term loan		828,000
Exit fee percentage payable upon repayment of the total secured term loan			6.00%
Payment of accrued and unpaid interest through the date of the secured term loan refinancing		$ 378,000
Gain (loss) on extinguishment of debt							$ (905,000)
Senior Secured Term Loan [Member] \| CRG Servicing LLC [Member] \| Forecast
Subsequent Event [Line Items]
Gain (loss) on extinguishment of debt				$ (1,500,000)
Senior Secured Term Loan [Member] \| Subsequent Event [Member] \| Silicon Valley Bank [Member]
Subsequent Event [Line Items]
Senior secured facility	$ 30,000,000
Proceed from senior secured facility	$ 30,000,000
Maturity date	Jan. 01, 2027
Debt instrument effective rate	5.50%
Senior Secured Term Loan [Member] \| Subsequent Event [Member] \| Silicon Valley Bank [Member] \| Prime Rate Plus [Member]
Subsequent Event [Line Items]
Revolving line bears interest rate	2.25%
Senior Secured Term Loan [Member] \| Subsequent Event [Member] \| CRG Servicing LLC [Member]
Subsequent Event [Line Items]
Upfront cash payment	$ 41,400,000
Repayment of senior secured term loan	38,200,000
Payment of exit fee upon repayment of secured term loan	$ 2,300,000
Exit fee percentage payable upon repayment of the total secured term loan	6.00%
Payment of accrued and unpaid interest through the date of the secured term loan refinancing	$ 900,000
Senior Secured Revolving Credit Facility [Member] \| Subsequent Event [Member] \| Silicon Valley Bank [Member]
Subsequent Event [Line Items]
Senior secured facility	$ 15,000,000.0
Percentage of accounts receivable eligible for maximum amount borrowing	80.00%
Unused commitment fee	0.25%
Proceed from senior secured facility	$ 11,500,000