CONSOLIDATED CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT) - USD ($)	Common Stock	Retained Earnings (Accumulated Deficit).	Total
BALANCE at Dec. 29, 2018	$ 4,425,600	$ (9,234,100)	$ (4,808,500)
BALANCE (in shares) at Dec. 29, 2018	3,907,686
Shareholders' Equity (Deficit)
Repurchase of common stock	$ (5,081,000)	(18,947,100)	(24,028,100)
Repurchase of common stock (in shares)	(150,000)
Stock options exercised	$ 10,918,300		10,918,300
Stock options exercised (in shares)	190,172
Compensation expense relating to stock options	$ 1,666,400		1,666,400
Cash dividends		(3,449,100)	(3,449,100)
Comprehensive income (Net income)		32,149,300	32,149,300
BALANCE at Dec. 28, 2019	$ 11,929,300	519,000	12,448,300
BALANCE (in shares) at Dec. 28, 2019	3,947,858
Shareholders' Equity (Deficit)
Repurchase of common stock	$ (12,215,500)	(36,772,000)	(48,987,500)
Repurchase of common stock (in shares)	(300,000)
Stock options exercised	$ 8,252,800		8,252,800
Stock options exercised (in shares)	108,170
Compensation expense relating to stock options	$ 1,315,200		1,315,200
Cash dividends		(14,230,800)	(14,230,800)
Comprehensive income (Net income)		29,823,300	29,823,300
BALANCE at Dec. 26, 2020	$ 9,281,800	(20,660,500)	$ (11,378,700)
BALANCE (in shares) at Dec. 26, 2020	3,756,028		3,756,028
Shareholders' Equity (Deficit)
Repurchase of common stock	$ (19,037,300)	(25,180,200)	$ (44,217,500)
Repurchase of common stock (in shares)	(225,839)
Stock options exercised	$ 8,320,000		8,320,000
Stock options exercised (in shares)	105,617
Compensation expense relating to stock options	$ 1,435,500		1,435,500
Cash dividends		(33,162,600)	(33,162,600)
Comprehensive income (Net income)		39,919,900	39,919,900
BALANCE at Dec. 25, 2021		$ (39,083,400)	$ (39,083,400)
BALANCE (in shares) at Dec. 25, 2021	3,635,806		3,635,806