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Note 1 - Organization and Summary of Significant Accounting Policies - Research and Development Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Outside contracted services	$ 336,068	$ 556,042	$ 1,119,502	$ 1,947,228
Personnel related costs	121,081	147,426	334,297	447,034
Facilities, overhead and other	3,092	12,883	44,794	50,207
Research And Development Expense, Including Related Party	$ 460,241	$ 716,351	$ 1,498,593	$ 2,444,469

X

- Definition

Represents facilities, overhead and other for research and development expense.

+ References

No definition available.

+ Details

Name:	dyai_ResearchAndDevelopmentExpenseFacilitiesOverheadAndOther
Namespace Prefix:	dyai_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents research and development expense including related party.

+ References

No definition available.

+ Details

Name:	dyai_ResearchAndDevelopmentExpenseIncludingRelatedParty
Namespace Prefix:	dyai_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents outside contracted services for research and development expense.

+ References

No definition available.

+ Details

Name:	dyai_ResearchAndDevelopmentExpenseOutsideContractedServices
Namespace Prefix:	dyai_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents personnel related costs for research and development expenses.

+ References

No definition available.

+ Details

Name:	dyai_ResearchAndDevelopmentExpensePersonnelRelatedCosts
Namespace Prefix:	dyai_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration