CONSOLIDATED STATEMENTS OF INCOME - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Net sales	$ 422,957,000	$ 364,244,000
Cost of goods sold	290,871,000	256,417,000
Gross profit	132,086,000	107,827,000
Operating expenses:
Selling expenses	35,844,000	32,261,000
General and administrative expenses (including $2,775 and $2,550 associated with variable interest entity for the years ended December 31, 2022 and 2021, respectively)	66,227,000	52,421,000
Total operating expenses	102,071,000	84,682,000
Operating income	30,015,000	23,145,000
Other income (expenses)
Rental income (including $949 and $931 associated with variable interest entity for the years ended December 31, 2022 and 2021, respectively)	949,000	931,000
Other (expense) income (including $0 and $9 other income associated with variable interest entity for the years ended December 31, 2022 and 2021, respectively)	(228,000)	259,000
Gain (loss) on foreign currency transactions	1,568,000	(412,000)
Interest income (including $2,171 and $1,270 associated with variable interest entity for the years ended December 31, 2022 and 2021, respectively)	2,226,000	1,512,000
Interest expense (including $1,821 and $1,781 associated with variable interest entity for the years ended December 31, 2022 and 2021, respectively)	(2,017,000)	(2,907,000)
Gain on forgiveness of debt	0	5,000,000
Total other income, net	2,498,000	4,383,000
Income before provision for income taxes	32,513,000	27,528,000
Provision for income taxes	6,676,000	5,089,000
Net income	25,837,000	22,439,000
Net income attributable to noncontrolling interest	2,189,000	1,661,000
Net income attributable to Karat Packaging Inc.	$ 23,648,000	$ 20,778,000
Basic and diluted earnings per share:
Basic (in dollars per share)	$ 1.19	$ 1.13
Diluted (in dollars per share)	$ 1.19	$ 1.12
Weighted average common shares outstanding, basic (in shares)	19,824,911	18,409,243
Weighted average common shares outstanding, diluted (in shares)	19,925,905	18,566,260