While OutKast’s new movie Idlewild (IMDB, official site) may be set in a fictional Georgia town in the 1930s, it shares a name with an actual Michigan place. Idlewild, Michigan was founded in 1912 by a group of four white businessmen as an African American resort community for the growing black middle class.
The creators sold property to a number of prominent African Americans and the community grew rapidly, developing a reputation as a “Black Eden” — an intellectual and cultural mecca. Although the resort declined in popularity after the passage of the Civil Rights Act of 1964, a core of year-round residents remained. The Idlewild African American Chamber of Commerce website contains a variety of historical information, and Wikipedia provides a good historical overview of the community and many links to further reading. The graphic is the cover of this book on Idlewild history.