Stockholder's Equity - Preferred Stock (Details)			12 Months Ended
	Aug. 12, 2021 $ / shares	Sep. 29, 2019	Dec. 31, 2023 USD ($) $ / shares shares	Jan. 01, 2023 USD ($) shares	Jan. 02, 2022 USD ($)	Dec. 30, 2012	Dec. 29, 2019 shares	Aug. 02, 2019 USD ($)	Dec. 31, 2012 shares
Class of Stock [Line Items]
Preferred Stock, Shares Issued | shares			100	100					100
Outstanding Shares		14.50%
Board of directors, number of members			2				2
Common Stock, Dividends, Per Share, Declared | $ / shares	$ 0.41
Convertible Preferred Stock, Common Shares Issuable upon Conversion | shares			9,414,580						9,414,580
Payment of Special Cash Dividend, Financing Activities | $			$ 1,278,000	$ 0	$ 24,882,000
Dividends, Cash | $			$ 1,300,000
Quarterly Dividend Declared
Class of Stock [Line Items]
Cash dividend (in dollars per share) | $ / shares			$ 0.02
Minimum [Member]
Class of Stock [Line Items]
Board of directors, number of members						1
Maximum [Member]
Class of Stock [Line Items]
Board of directors, number of members						2	1
Repurchase Program [Member]
Class of Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $			$ 11,000,000
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued | shares			100
Outstanding Shares						7.50%
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Units, Issued | shares							10,000
Common Stock | Repurchase Program [Member]
Class of Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $			$ 11,000,000
Stock Repurchase Program, Authorized Amount | $								$ 25,000,000
BKC [Member] | Series B Preferred Stock [Member]
Class of Stock [Line Items]
Outstanding Shares						11.50%
Outstanding Shares, Common Stock Held By Cambridge Holdings Less than 10%		0.10
Cambridge Holdings, LLC [Member]
Class of Stock [Line Items]
Convertible Preferred Stock, Shares Issued upon Conversion | shares							7,500,000
Cambridge Holdings, LLC [Member] | Carrols Restaurant Group, Inc.
Class of Stock [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent			19.50%