Class Of Warrant Or Right, Cancelled

No definition available.

Name:	exdx_ClassOfWarrantOrRightCancelled
Namespace Prefix:	exdx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

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+ Details

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

- Definition

Amount of expense (income) related to adjustment to fair value of warrant liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

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+ Details

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

- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

+ References

+ Details

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

- Definition

Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

+ References

+ Details

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Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=exdx_CreditAgreementWarrantsMember
Namespace Prefix:
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Period Type:

Fair Value Measurements - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended
	Mar. 31, 2026 USD ($) shares	Mar. 31, 2026 USD ($) shares	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Long-term debt	$ 22,871	$ 22,871
Change in fair value of warrant liability		$ (882)	$ 0
Measurement Input, Long-Term Revenue Growth Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Warrant liability, measurement input	0.50	0.50
Amended Loan Agreement \| Level 2
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Long-term debt	$ 21,800	$ 21,800		$ 21,700
Debt instrument, fair value	22,200	22,200		22,600
Equipment Notes Payable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Notes payable	$ 1,100	$ 1,100		$ 1,200
Perceptive Term Loan Facility \| Credit Agreement Warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Class of warrant or right, cancelled (in shares) \| shares	150,000	150,000
Change in fair value of warrant liability	$ 100