SIOUX FALLS, S.D. — The owner of a South Dakota radio station has shut down the station and closed his remaining properties after a ruling from state banking regulators.

Owner Chuck Brennan took KBAD-FM off the air Saturday night. A statement on the radio station’s home page says KBAD and all of the remaining Badlands Entities properties are closed and up for sale.

The announcement comes 10 days after South Dakota banking regulators revoked the lending license for Brennan’s Dollar Loan Center stores in Sioux Falls and Rapid City. The state Division of Banking shut down the stores after learning the short-term loan company was charging 36 percent interest and charging late fees if loans were not repaid in a week.

Brennan’s empire once included a motor speedway, a rock ‘n’ roll academy and a sprawling pawnshop.