Balance Sheets (Unaudited) (Parenthetical) - shares	Jun. 27, 2020	Dec. 28, 2019
Class A Units [Member]
Members' capital, units authorized	735,385	735,385
Members' capital, units issued	735,385	735,385
Members' capital, units outstanding	735,385	735,385
Class B Units [Member]
Members' capital, units authorized	755,385	755,385
Members' capital, units issued	755,385	755,385
Members' capital, units outstanding	755,385	755,385