Document and Entity Information - shares	9 Months Ended
	Mar. 31, 2018	May 07, 2018
Document And Entity Information
Entity Registrant Name	PRO DEX INC
Entity Central Index Key	0000788920
Document Type	10-Q
Trading Symbol	PDEX
Document Period End Date	Mar. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity's Reporting Status Current	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		4,353,401
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2018