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Income Taxes: (Tables)

12 Months Ended

Dec. 28, 2024

Income Taxes:

Schedule of reconciliation of the expected federal income tax expense based on the federal statutory tax rate to the actual income tax expense

​

​	​	​	​	​	​	​	​	​	​	​
​	​	Year Ended
​		December 28, 2024			December 30, 2023			December 31, 2022
Federal income tax expense at statutory rate (21%, 21%, 21%)	​	$	10,757,000	​	$	10,785,900	​	$	10,664,500	​
Change in valuation allowance	​		180,000	​		(551,600)	​		(6,600)	​
State and local income taxes, net of federal benefit	​		1,435,800	​		1,513,100	​		1,515,900	​
Permanent differences, including stock option expenses	​		(1,479,400)	​		(1,372,300)	​		(955,900)	​
Expiration of attributes	​	​	—	​	​	528,600	​	​	—	​
Adjustment to uncertain tax positions	​	​	258,500	​	​	240,100	​	​	185,300	​
Other, net	​		117,900	​		39,400	​		(44,600)	​
Actual income tax expense	​	$	11,269,800	​	$	11,183,200	​	$	11,358,600	​

Schedule of components of the provision for income taxes

​

​	​	​	​	​	​	​	​	​	​	​
​	​	Year Ended
​		December 28, 2024			December 30, 2023			December 31, 2022
Current:	​	​	​	​	​	​	​	​	​	​
Federal	​	$	8,840,600	​	$	9,237,600	​	$	8,892,200	​
State	​		2,025,500	​		1,883,900	​		2,167,900	​
Foreign	​		563,000	​		573,800	​		586,200	​
Current provision	​		11,429,100	​		11,695,300	​		11,646,300	​
Deferred:	​	​	​	​	​	​	​	​	​	​
Federal	​		(108,900)	​		(504,700)	​		(351,500)	​
State	​		(50,400)	​		(7,400)	​		63,800	​
Deferred provision	​		(159,300)	​		(512,100)	​		(287,700)	​
Total provision for income taxes	​	$	11,269,800	​	$	11,183,200	​	$	11,358,600	​

Schedule of tax effects of temporary differences that give rise to the net deferred income tax assets and liabilities

​

​	​	​	​	​	​	​	​
​		December 28, 2024			December 30, 2023
Deferred tax assets:	​	​	​	​	​	​	​
Accounts receivable and lease reserves	​	$	100	​	$	500	​
Non-qualified stock option expense	​		1,942,000	​		1,769,200	​
Deferred revenue	​		1,728,100	​		1,612,200	​
Trademarks	​		40,200	​		36,900	​
Lease deposits	​		—	​		6,700	​
Lease revenue and initial direct costs	​	​	21,300	​	​	29,200	​
Foreign tax credits	​	​	597,300	​	​	631,100	​
Valuation allowance	​		(530,000)	​		(350,000)	​
Operating lease liabilities	​	​	884,500	​	​	1,026,600	​
Other	​		348,300	​		291,100	​
Total deferred tax assets	​		5,031,800	​		5,053,500	​
Deferred tax liabilities:	​	​	​	​	​	​	​
Depreciation and amortization	​		(820,000)	​		(1,001,100)	​
Total deferred tax liabilities	​		(820,000)	​		(1,001,100)	​
Total net deferred tax assets	​	$	4,211,800	​	$	4,052,400	​

Summary of activity related to the Company's unrecognized tax benefits

​

​	​	​	​	​
​		Total
Balance at December 31, 2022	​	$	871,300	​
Increases related to current year tax positions	​		277,600	​
Expiration of the statute of limitations for the assessment of taxes	​		(65,800)	​
Balance at December 30, 2023	​	​	1,083,100	​
Increases related to current year tax positions	​		283,100	​
Expiration of the statute of limitations for the assessment of taxes	​		(71,900)	​
Balance at December 28, 2024	​	$	1,294,300	​

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of the change in unrecognized tax benefits.

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