Consolidated Balance Sheets (Parentheticals) - $ / shares	Jun. 27, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	90,000,000	90,000,000
Preferred stock, shares issued (shares)	0	0
Preferred stock, shares outstanding (shares)	0	0
Common stock, shares authorized (shares)	900,000,000	900,000,000
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares outstanding (shares)	10,553,258	100,668,003