CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Net sales	$ 105,528	$ 109,996	$ 310,069	$ 330,290
Cost of goods sold	66,584	75,828	191,120	227,869
Gross profit	38,944	34,168	118,949	102,421
Operating expenses
Selling expense	8,004	9,413	25,500	28,218
General and administrative expense (including $702 and $665 associated with variable interest entity for the three months ended September 30, 2023 and 2022, respectively; $2,020 and $1,899 associated with variable interest entity for the nine months ended September 30, 2023 and 2022, respectively)	19,870	16,861	53,767	49,033
Impairment expense and (gain) loss, net, on disposal of machinery	(310)	(16)	2,231	(33)
Total operating expenses	27,564	26,258	81,498	77,218
Operating income	11,380	7,910	37,451	25,203
Other income (expense)
Rental income (including $235 and $239 associated with variable interest entity for the three months ended September 30, 2023 and 2022, respectively; and $721 and $715 associated with variable interest entity for the nine months ended September 30, 2023 and 2022, respectively)	259	239	781	715
Other income (expense), net	32	28	(58)	(235)
Gain on foreign currency transactions	455	369	350	1,352
Interest income (including $80 and $0 interest income associated with variable interest entity for the three months ended September 30, 2023 and 2022, respectively; and $278 and $2,160 interest income associated with variable interest entity for the nine months ended September 30, 2023 and 2022, respectively)	454	0	1,040	2,160
Interest expense (including $528 and $470 interest expense associated with variable interest entity for the three months ended September 30, 2023 and 2022, respectively; and $1,499 and $1,379 interest expense associated with variable interest entity for the nine months ended September 30, 2023 and 2022, respectively)	(536)	(493)	(1,516)	(1,576)
Total other income, net	664	143	597	2,416
Income before provision for income taxes	12,044	8,053	38,048	27,619
Provision for income taxes	2,904	1,900	9,045	6,323
Net income	9,140	6,153	29,003	21,296
Net income attributable to noncontrolling interest	75	57	431	2,189
Net income attributable to Karat Packaging Inc.	$ 9,065	$ 6,096	$ 28,572	$ 19,107
Basic and diluted earnings per share:
Basic (in dollars per share)	$ 0.46	$ 0.31	$ 1.44	$ 0.96
Diluted (in dollars per share)	$ 0.45	$ 0.31	$ 1.43	$ 0.96
Weighted average common shares outstanding, basic (in shares)	19,890,646	19,809,417	19,888,244	19,808,813
Weighted average common shares outstanding, diluted (in shares)	19,994,648	19,938,042	19,962,999	19,922,047