Condensed Consolidated Income Statements - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue	$ 53,860	$ 46,473	$ 104,620	$ 90,335
Restaurant operating expenses:
Food cost	17,700	14,786	34,668	29,091
Payroll and benefits	16,362	14,323	32,514	27,975
Occupancy expenses	4,389	3,673	8,682	7,104
Operating expenses	5,358	4,299	10,457	8,425
Depreciation and amortization	1,706	1,131	3,243	2,244
Pre-opening costs	1,645	881	3,547	1,400
Total restaurant operating expenses	47,160	39,093	93,111	76,239
General and administrative	5,058	1,958	9,731	4,013
Consulting fees - related party		1,445		2,325
Management fees		589		1,176
Depreciation and amortization - corporate	29	18	57	37
Total costs and expenses	52,247	43,103	102,899	83,790
Income from operations	1,613	3,370	1,721	6,545
Employee retention credits	200	1,318	200	2,483
Other income (loss)		(7)		(7)
Gain on remeasurement of previously held interest (see Note 3)			3,402
Interest income (expense), net	262	(207)	538	(396)
Equity in income (loss) of equity method investee		86	(17)	467
Net income before income taxes	2,075	4,560	5,844	9,092
Provision for income taxes	(11)	(96)	(83)	(96)
Net income	2,064	4,464	5,761	8,996
Less: Net income attributable to noncontrolling interest	1,787	504	4,990	901
Net income attributable to GEN Restaurant Group, Inc.	277	$ 3,960	771	$ 8,095
Net income attributable to Class A common stock per share - basic	277		771
Net income attributable to Class A common stock per share - diluted	$ 277		$ 771
Weighted-average shares of Class A common stock outstanding - basic	4,572	4,249	4,446	4,249
Weighted-average shares of Class A common stock outstanding - diluted	4,572	4,249	4,446	4,249
Net income per share of Class A common stock - basic	$ 0.06		$ 0.17
Net income per share of Class A common stock - diluted	$ 0.06		$ 0.17