XML 38 R27.htm IDEA: XBRL DOCUMENT v3.21.2

FINANCIAL STATEMENT PREPARATION (Details Narrative)	Jun. 30, 2021 USD ($)
FINANCIAL STATEMENT PREPARATION
AMT credit refund amount	$ 640,000

X

- References

No definition available.

+ Details

Name:	daio_AmtCreditRefundAmount
Namespace Prefix:	daio_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration