CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Income Statement [Abstract]
Net sales	$ 136,302	$ 123,986	$ 253,249	$ 227,610
Cost of goods sold	59,142	74,879	134,563	137,741
Gross profit	77,160	49,107	118,686	89,869
Operating expenses
Selling expenses	17,544	13,716	30,480	28,127
General and administrative expenses (including $675 and $785 associated with variable interest entity for the three months ended June 30, 2026 and 2025, respectively; $1,316 and $1,462 associated with variable interest entity for the six months ended June 30, 2026 and 2025, respectively)	21,954	19,124	42,080	37,672
Loss (gain), net, on disposal of property and equipment	60	(283)	60	(300)
Total operating expenses	39,558	32,557	72,620	65,499
Operating income	37,602	16,550	46,066	24,370
Other income (expenses)
Rental income (including $362 and $361 associated with variable interest entity for the three months ended June 30, 2026 and 2025, respectively; $719 and $807 associated with variable interest entity for the six months ended June 30, 2026 and 2025, respectively)	716	755	1,414	1,531
Other income (expenses), net (including $0 associated with variable interest entity for both the three months ended June 30, 2026 and 2025; $76 and $0 associated with variable interest entity for the six months ended June 30, 2026 and 2025, respectively)	53	(82)	144	(38)
(Loss) gain on foreign currency transactions	(81)	(2,867)	171	(2,628)
Interest income (including $2 and $85 associated with variable interest entity for the three months ended June 30, 2026 and 2025, respectively; $5 and $311 associated with variable interest entity for the six months ended June 30, 2026 and 2025, respectively)	1,161	676	1,447	1,242
Interest expense (including ($381) and ($509) associated with variable interest entity for the three months ended June 30, 2026 and 2025, respectively; ($761) and ($1,009) associated with variable interest entity for the six months ended June 30, 2026 and 2025, respectively)	(425)	(521)	(834)	(1,030)
Total other income (expenses), net	1,424	(2,039)	2,342	(923)
Income before provision for income taxes	39,026	14,511	48,408	23,447
Provision for income taxes	9,377	3,459	11,618	5,580
Net income	29,649	11,052	36,790	17,867
Net income attributable to noncontrolling interest	318	118	718	524
Net income attributable to Karat Packaging Inc.	$ 29,331	$ 10,934	$ 36,072	$ 17,343
Basic and diluted earnings per share:
Basic (in dollars per share)	$ 1.47	$ 0.55	$ 1.81	$ 0.87
Diluted (in dollars per share)	$ 1.46	$ 0.54	$ 1.80	$ 0.86
Weighted average common shares outstanding, basic (in shares)	19,948,690	20,058,247	19,955,917	20,047,436
Weighted average common shares outstanding, diluted (in shares)	20,107,051	20,191,111	20,090,225	20,194,942