CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Net sales	$ 109,996,000	$ 102,711,000	$ 330,290,000	$ 272,910,000
Cost of goods sold	75,828,000	72,918,000	227,869,000	193,393,000
Gross profit	34,168,000	29,793,000	102,421,000	79,517,000
Operating expenses
Selling expense	9,413,000	9,855,000	28,218,000	24,026,000
General and administrative expense (including $665 and $683 associated with variable interest entity for the three months ended September 30, 2022 and 2021, respectively; $1,899 and $1,983 associated with variable interest entity for the nine months ended September 30, 2022 and 2021, respectively)	16,845,000	14,573,000	49,000,000	39,485,000
Total operating expenses	26,258,000	24,428,000	77,218,000	63,511,000
Operating income	7,910,000	5,365,000	25,203,000	16,006,000
Other income (expense)
Rental income (including $239 and $246 associated with variable interest entity for the three months ended September 30, 2022 and 2021, respectively; and $715 and $738 associated with variable interest entity for the nine months ended September 30, 2022 and 2021, respectively)	239,000	246,000	715,000	738,000
Other income (expense)	28,000	101,000	(235,000)	223,000
Gain (Loss) on foreign currency transactions	369,000	(63,000)	1,352,000	(347,000)
Interest (expense) income (including $470 interest expense and $273 interest expense associated with variable interest entity for the three months ended September 30, 2022 and 2021, respectively; and $781 interest income and $283 interest expense associated with variable interest entity for the nine months ended September 30, 2022 and 2021, respectively)	493,000	308,000	(584,000)	1,158,000
Gain on forgiveness of debt	0	0	0	5,000,000
Total other income (expense)	143,000	(24,000)	2,416,000	4,456,000
Income before provision for income taxes	8,053,000	5,341,000	27,619,000	20,462,000
Provision for income taxes	1,900,000	1,268,000	6,323,000	4,001,000
Net income	6,153,000	4,073,000	21,296,000	16,461,000
Net income attributable to noncontrolling interest	57,000	287,000	2,189,000	1,312,000
Net income attributable to Karat Packaging Inc.	$ 6,096,000	$ 3,786,000	$ 19,107,000	$ 15,149,000
Basic and diluted earnings per share:
Basic (in dollars per share)	$ 0.31	$ 0.19	$ 0.96	$ 0.84
Diluted (in dollars per share)	$ 0.31	$ 0.19	$ 0.96	$ 0.84
Weighted average common shares outstanding, basic (in shares)	19,809,417	19,710,043	19,808,813	17,945,205
Weighted average common shares outstanding, diluted (in shares)	19,938,042	19,881,295	19,922,047	18,110,127