Common Stock and Series B Convertible Preferred Stock - Shares Authorized and Outstanding (Details) - shares	Sep. 27, 2020	Jun. 28, 2020	Dec. 29, 2019
Authorized shares of preferred stock	5,000,000.0
Authorized shares of common stock	100,000,000.0
Outstanding shares of common stock , net of repurchased stock	32,500,000		31,900,000
Series B Convertible Preferred Stock, shares outstanding	252,530		252,500
Series B Preferred Stock
Authorized shares of preferred stock	260,000
Series B Convertible Preferred Stock, shares outstanding		252,500	252,500