Document and Entity Information - USD ($)	12 Months Ended
	Jun. 30, 2017	Sep. 18, 2017	Dec. 31, 2016
Document and Entity Information:
Entity Registrant Name	DYNATRONICS CORP
Document Type	10-K
Document Period End Date	Jun. 30, 2017
Trading Symbol	dynt
Amendment Flag	false
Entity Central Index Key	0000720875
Current Fiscal Year End Date	--06-30
Entity Common Stock, Shares Outstanding		4,710,544
Entity Public Float			$ 5,400,000
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY