Nature of Business and Organization - Reorganization - General Information (Details)	Jan. 27, 2022	Sep. 30, 2022
Noncontrolling Interest [Line Items]
Percentage of outstanding stock expected to be distributed (as a percent)	100.00%
Percentage of outstanding stock expected to be contributed (as a percent)	100.00%
FGI Industries, Inc. [Member]
Noncontrolling Interest [Line Items]
Ownership percentage (as a percent)	100.00%	100.00%
FGI Europe Investment Limited [Member]
Noncontrolling Interest [Line Items]
Ownership percentage (as a percent)	100.00%	100.00%
FGI International, Limited [Member]
Noncontrolling Interest [Line Items]
Ownership percentage (as a percent)	100.00%	100.00%
Foremost Groups Ltd. [Member] | FGI Industries Ltd. [Member]
Noncontrolling Interest [Line Items]
Ownership percentage (as a percent)	100.00%
Foremost Groups Ltd. [Member] | Foremost Home Incorporated [Member]
Noncontrolling Interest [Line Items]
Ownership percentage (as a percent)	100.00%
Foremost Home Incorporated [Member] | Foremost Kingbetter Food Equipment Inc. [Member]
Noncontrolling Interest [Line Items]
Ownership percentage (as a percent)	100.00%