X0306 4 2022-02-23 false 0000351998 DATA I/O CORP DAIO 0001216591 SMITH EDWARD J 6645 185TH AVE. NE, SUITE 100 REDMOND, WA 98052 true false false false common stock 2022-02-23 4 A false 2515 4.685 A 2515 D RSU grant, vests over the earlier of 1 year or the next Annual Meeting of Shareholders. FMV price is the average of high low for the day. Initial RSU grant to new Director Joel S. Hatlen (POA) 2022-02-25