Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Aug. 05, 2021
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Amendment Flag	false
Document Period End Date	Jun. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Document Transition Report	false
Entity File Number	1-11588
Entity Registrant Name	Saga Communications, Inc
Entity Central Index Key	0000886136
Current Fiscal Year End Date	--12-31
Entity Incorporation, State or Country Code	FL
Entity Tax Identification Number	38-3042953
Entity Address, Address Line One	73 Kercheval Avenue
Entity Address, City or Town	Grosse Pointe Farms
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	48236
City Area Code	313
Local Phone Number	886-7070
Title of 12(b) Security	Class A Common Stock, par value $.01 per share
Trading Symbol	SGA
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Class A Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		5,042,752
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		937,641