Document and Entity Information - shares	6 Months Ended
	Dec. 31, 2018	Jan. 01, 2019
Text Block [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Dec. 31, 2018
Entity Registrant Name	GALAXY NEXT GENERATION, INC.
Entity Central Index Key	0001127993
Current Fiscal Year End Date	--06-30
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2019
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		9,888,068
Entity Small Business	true
Entity Emerging Growth Company	false