Property and Equipment, Net (Details) - USD ($)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property and equipment, net
Property and equipment, gross	$ 25,947,694	$ 29,595,773
Accumulated depreciation	(11,743,331)	(12,928,492)
Property and equipment, net	14,204,363	16,667,281
Depreciation expenses	1,743,030	2,374,493	$ 2,701,577
Furniture, fixtures and equipment
Property and equipment, net
Property and equipment, gross	9,160,115	11,119,445
Leasehold improvements
Property and equipment, net
Property and equipment, gross	4,238,863	5,269,934
Buildings
Property and equipment, net
Property and equipment, gross	11,742,004	12,085,843
Motor vehicles
Property and equipment, net
Property and equipment, gross	$ 806,712	$ 1,120,551

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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