Nature of Business and Organization - Ownership by Parent (Details)	Sep. 30, 2022	Jan. 27, 2022
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%
FGI Canada Ltd. [Member]
Noncontrolling Interest [Line Items]
Ownership percentage (as a percent)	100.00%
FGI Germany GmbH & Co. KG [Member]
Noncontrolling Interest [Line Items]
Ownership percentage (as a percent)	100.00%
FGI China, Ltd [Member]
Noncontrolling Interest [Line Items]
Ownership percentage (as a percent)	100.00%
FGI United Kingdom Ltd [Member]
Noncontrolling Interest [Line Items]
Ownership percentage (as a percent)	100.00%