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Note 1 - Organization and Summary of Significant Accounting Policies - Research and Development Costs (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Outside contracted services | $ 1,135,556 | $ 1,659,194
Personnel related costs | 206,790 | 148,162
Facilities, overhead and other | 516 | 742
Research And Development Expense, Including Related Party | $ 1,342,862 | $ 1,808,098

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