Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Sep. 06, 2019	Dec. 31, 2018
Document And Entity Information
Entity Registrant Name	PRO DEX INC
Entity Central Index Key	0000788920
Document Type	10-K
Document Period End Date	Jun. 30, 2019
Amendment Flag	false
Document Fiscal Year Focus	2019
Current Fiscal Year End Date	--06-30
Document Fiscal Period Focus	FY
Entity a Well-known Seasoned Issuer	No
Entity a Voluntary Filer	No
Entity's Reporting Status Current	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
EntityShellCompany	false
Entity Public Float			$ 30.6
Entity Common Stock, Shares Outstanding		3,989,703
Entity Incorporation State Code	CO
Entity File Number	000-14942