CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
OPERATING ACTIVITIES:
Net Income	$ 30,125,500	$ 24,580,500	$ 22,148,400
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	314,100	355,400	420,500
Provision for credit losses	38,600	9,000	18,500
Compensation expense related to stock options	1,976,100	1,956,600	1,776,600
Deferred income taxes	827,800	(1,370,300)	(305,400)
Gain on sale of marketable securities		(1,400)	12,600
Deferred initial direct costs	(1,367,800)	(416,300)	(535,800)
Amortization of deferred initial direct costs	1,048,500	447,700	471,100
Tax benefits on exercised stock options	403,800	882,300	599,400
Change in operating assets and liabilities:
Receivables	242,900	(316,800)	(62,300)
Income tax receivable/payable	1,192,500	(1,371,300)	1,597,700
Inventories	(10,500)	(9,600)	(42,300)
Prepaid expenses		242,400	(367,000)
Other assets	(132,200)	(15,500)	25,500
Accounts payable	(721,200)	381,000	48,700
Accrued and other liabilities	1,490,000	(174,400)	(253,400)
Rents received in advance and security deposits	(358,200)	126,700	759,900
Deferred revenue	(132,900)	(98,300)	(36,000)
Net cash provided by operating activities	34,937,000	25,207,700	26,276,700
INVESTING ACTIVITIES:
Proceeds from sale of marketable securities		217,200	52,200
Purchase of property and equipment	(693,500)	(72,600)	(68,600)
Purchase of equipment for lease contracts	(23,104,800)	(25,403,200)	(26,211,100)
Principal collections on lease receivables	24,252,200	25,343,800	23,006,800
Net cash provided by (used for) investing activities	453,900	85,200	(3,220,700)
FINANCING ACTIVITIES:
Proceeds from borrowings on line of credit	7,300,000	51,900,000	18,800,000
Payments on line of credit	(42,700,000)	(39,900,000)	(37,800,000)
Proceeds from borrowings on notes payable		12,500,000
Payments on notes payable	(3,250,000)	(2,312,500)	(2,000,000)
Repurchases of common stock	(1,846,400)	(49,902,500)	(1,573,900)
Proceeds from exercises of stock options	2,819,700	2,309,700	1,305,900
Dividends paid	(2,169,900)	(1,765,000)	(1,526,800)
Proceeds from discounted lease rentals	5,868,500	1,747,700
Net cash used for financing activities	(33,978,100)	(25,422,600)	(22,794,800)
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	1,412,800	(129,700)	261,200
Cash, cash equivalents and restricted cash, beginning of period	1,163,200	1,292,900	1,031,700
Cash, cash equivalents and restricted cash, end of period	$ 2,576,000	$ 1,163,200	$ 1,292,900