Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Nov. 01, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	0-28082
Entity Registrant Name	KVH Industries, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	05-0420589
Entity Address, Address Line One	50 Enterprise Center
Entity Address, City or Town	Middletown
Entity Address, State or Province	RI
Entity Address, Postal Zip Code	02842
City Area Code	401
Local Phone Number	847-3327
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	KVHI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		18,899,082
Entity Central Index Key	0001007587
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31