Overview and Summary of Significant Accounting Policies - Estimated Useful Lives of Property and Equipment (Details)	Jun. 30, 2023
Furniture, fixture and office equipment | Minimum
Property and Equipment [Line Items]
Useful economic life	3 years
Furniture, fixture and office equipment | Maximum
Property and Equipment [Line Items]
Useful economic life	5 years
Computer equipment and software
Property and Equipment [Line Items]
Useful economic life	3 years
Vehicles | Minimum
Property and Equipment [Line Items]
Useful economic life	3 years
Vehicles | Maximum
Property and Equipment [Line Items]
Useful economic life	5 years