XML 32 R18.htm IDEA: XBRL DOCUMENT
v3.21.1

NOTE 11 - SHARE REPURCHASE PROGRAMS | 12 Months Ended
--- | ---
Dec. 31, 2020
Equity [Abstract] |
SHARE REPURCHASE PROGRAMS | Data I/O did not offer a share repurchase program in 2020. In August of 2019, Data I/O completed the share repurchase program authorized in 2018.

X
- References No definition available. + Details
Name: | DAIO_ShareRepurchaseProgramsDisclosureTextBlock
Namespace Prefix: | DAIO_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration