CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Total Stockholders’ Equity Attributable to Karat Packaging Inc.	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Noncontrolling Interest
Balance at the beginning of period (in shares) at Dec. 31, 2022			19,908,005
Balance at the beginning of period at Dec. 31, 2022	$ 151,933	$ 141,682	$ 20	$ (248)	$ 85,792	$ 56,118	$ 10,251
Treasury stock, balance at the beginning of period (in shares) at Dec. 31, 2022				(23,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon vesting of restricted stock units, net shares withheld to cover taxes (in shares)			2,452
Issuance of common stock upon vesting of restricted stock units, net shares withheld to cover taxes	(14)	(14)			(14)
Stock-based compensation	277	277			277
Net income	9,186	9,005				9,005	181
Balance at the end of period (in shares) at Mar. 31, 2023			19,910,457
Balance at the end of period at Mar. 31, 2023	161,382	150,950	$ 20	$ (248)	86,055	65,123	10,432
Treasury stock, balance at the end of period (in shares) at Mar. 31, 2023				(23,000)
Balance at the beginning of period (in shares) at Dec. 31, 2022			19,908,005
Balance at the beginning of period at Dec. 31, 2022	151,933	141,682	$ 20	$ (248)	85,792	56,118	10,251
Treasury stock, balance at the beginning of period (in shares) at Dec. 31, 2022				(23,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	29,003
Balance at the end of period (in shares) at Sep. 30, 2023			19,916,839
Balance at the end of period at Sep. 30, 2023	164,753	154,165	$ 20	$ (248)	86,620	67,773	10,588
Treasury stock, balance at the end of period (in shares) at Sep. 30, 2023				(23,000)
Balance at the beginning of period (in shares) at Mar. 31, 2023			19,910,457
Balance at the beginning of period at Mar. 31, 2023	161,382	150,950	$ 20	$ (248)	86,055	65,123	10,432
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash Dividend	6,965	6,965				6,965
Treasury stock, balance at the beginning of period (in shares) at Mar. 31, 2023				(23,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon vesting of restricted stock units, net shares withheld to cover taxes (in shares)			582
Issuance of common stock upon vesting of restricted stock units, net shares withheld to cover taxes	(4)	(4)			(4)
Stock-based compensation	216	216			216
Net income	10,677	10,502				10,502	175
Balance at the end of period (in shares) at Jun. 30, 2023			19,911,039
Balance at the end of period at Jun. 30, 2023	165,306	154,699	$ 20	$ (248)	86,267	68,660	10,607
Treasury stock, balance at the end of period (in shares) at Jun. 30, 2023				(23,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash Dividend	9,952	9,952				9,952
Stock-based compensation	250	250			250
Exercise of stock options (in shares)			5,800
Exercise of stock options	103	103			103
Noncontrolling interest tax withholding	(94)						(94)
Net income	9,140	9,065				9,065	75
Balance at the end of period (in shares) at Sep. 30, 2023			19,916,839
Balance at the end of period at Sep. 30, 2023	$ 164,753	154,165	$ 20	$ (248)	86,620	67,773	10,588
Treasury stock, balance at the end of period (in shares) at Sep. 30, 2023				(23,000)
Balance at the beginning of period (in shares) at Dec. 31, 2023	19,965,482		19,988,482
Balance at the beginning of period at Dec. 31, 2023	$ 162,690	154,118	$ 20	$ (248)	86,667	67,679	8,572
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash Dividend	$ 5,992	5,992				5,992
Treasury stock, balance at the beginning of period (in shares) at Dec. 31, 2023	(23,000)			(23,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon vesting of restricted stock units, net shares withheld to cover taxes (in shares)			3,750
Stock-based compensation	$ 375	375			375
Exercise of stock options (in shares)			2,800
Exercise of stock options	52	52			52
Global Wells noncontrolling membership interest redemption	(3,209)	(316)				(316)	(2,893)
Net income	6,476	6,166				6,166	310
Balance at the end of period (in shares) at Mar. 31, 2024			19,995,032
Balance at the end of period at Mar. 31, 2024	$ 160,392	154,403	$ 20	$ (248)	87,094	67,537	5,989
Treasury stock, balance at the end of period (in shares) at Mar. 31, 2024				(23,000)
Balance at the beginning of period (in shares) at Dec. 31, 2023	19,965,482		19,988,482
Balance at the beginning of period at Dec. 31, 2023	$ 162,690	154,118	$ 20	$ (248)	86,667	67,679	8,572
Treasury stock, balance at the beginning of period (in shares) at Dec. 31, 2023	(23,000)			(23,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	24,073
Net income	$ 24,965
Balance at the end of period (in shares) at Sep. 30, 2024	20,021,105		20,044,105
Balance at the end of period at Sep. 30, 2024	$ 163,596	157,312	$ 20	$ (248)	88,823	68,717	6,284
Treasury stock, balance at the end of period (in shares) at Sep. 30, 2024	(23,000)			(23,000)
Balance at the beginning of period (in shares) at Mar. 31, 2024			19,995,032
Balance at the beginning of period at Mar. 31, 2024	$ 160,392	154,403	$ 20	$ (248)	87,094	67,537	5,989
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash Dividend	7,004	7,004				7,004
Treasury stock, balance at the beginning of period (in shares) at Mar. 31, 2024				(23,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon vesting of restricted stock units, net shares withheld to cover taxes (in shares)			27,800
Stock-based compensation	940	940			940
Exercise of stock options (in shares)			14,833
Exercise of stock options	273	273			273
Net income	9,227	9,100				9,100	127
Balance at the end of period (in shares) at Jun. 30, 2024			20,037,665
Balance at the end of period at Jun. 30, 2024	163,828	157,712	$ 20	$ (248)	88,307	69,633	6,116
Treasury stock, balance at the end of period (in shares) at Jun. 30, 2024				(23,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash Dividend	10,010	10,010				10,010
Stock-based compensation	400	400			400
Exercise of stock options (in shares)			6,440
Exercise of stock options	116	116			116
Net income	$ 9,262	9,094				9,094	168
Balance at the end of period (in shares) at Sep. 30, 2024	20,021,105		20,044,105
Balance at the end of period at Sep. 30, 2024	$ 163,596	$ 157,312	$ 20	$ (248)	$ 88,823	$ 68,717	$ 6,284
Treasury stock, balance at the end of period (in shares) at Sep. 30, 2024	(23,000)			(23,000)