Cover - shares	3 Months Ended
	Mar. 31, 2024	May 06, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-40336
Entity Registrant Name	Karat Packaging Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-2237832
Entity Address, Address Line One	6185 Kimball Avenue
Entity Address, City or Town	Chino
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	91708
City Area Code	626
Local Phone Number	965-8882
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	KRT
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	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		19,975,032
Entity Central Index Key	0001758021
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false
Current Fiscal Year End Date	--12-31