Commitments and Contingencies (Details)	12 Months Ended
Dec. 31, 2025 USD ($)
Commitments and Contingencies [Line Items]
Contracts additional payments	$ 2,576,000
Minimum commitments remaining contracts	$ 4,294,000

Represents the amount of contractual remaining minimum commitments.

No definition available.

Name:	deft_ContractualRemainingMinimumCommitments
Namespace Prefix:	deft_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration