Document and Entity Information - USD ($)	12 Months Ended
	Jun. 30, 2019	Sep. 18, 2019
Document And Entity Information
Document Type	10-K/A
Amendment Flag	true
Amendment Description	Galaxy Next Generation, Inc. (“Galaxy”), is filing this Amendment No. 2 on Form 10-K/A (this “Form 10-K/A”) for the fiscal year ended June 30, 2019, to amend certain items as set forth below on the Company’s Annual Report on Form 10-K for the fiscal year ended June 30, 2019, as filed with the Securities and Exchange Commission (the “SEC”) on September 30, 2019 (the “Original Filing”). The March 31, 2018 comparative financial information have been added to the filing.
Document Period End Date	Jun. 30, 2019
Entity Registrant Name	GALAXY NEXT GENERATION, INC.
Entity Central Index Key	0001127993
Current Fiscal Year End Date	--06-30
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2019
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity File Number	333-51918
Entity Incorporation State Code	NV
Entity Common Stock, Shares Outstanding		12,968,219
Entity Public Float		$ 0