Investment in Leasing Operations: Minimum Lease Payments Receivable (Details) - USD ($)	Sep. 26, 2020	Dec. 28, 2019
Direct Financing and Sales-Type Leases, Minimum Lease Payments Receivable
2020	$ 3,382,200
2021	10,571,100
2022	2,726,500
2023	145,700
2024	15,200
Thereafter	13,500
Total	16,854,200	$ 26,001,200
Direct Financing and Sales-Type Leases, Income Amortization
2020	564,900
2021	1,099,900
2022	150,200
2023	6,200
2024	1,700
Thereafter	700
Total	$ 1,823,600

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121576215&loc=SL77919391-209981

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in remainder of current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI http://asc.fasb.org/extlink&oid=121576215&loc=SL77919391-209981

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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The aggregated amount of amortization of unearned lease income, net of initial direct costs deferred, related to net investment in sales-type and direct financing leases expected to be recognized by the entity.

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No definition available.

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Amount of amortization of unearned lease income, net of initial direct costs deferred, related to net investment in sales-type and direct financing leases expected to be recognized after fourth fiscal year following current fiscal year.

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Amount of amortization of unearned lease income, net of initial direct costs deferred, related to net investment in sales-type and direct financing leases expected to be recognized in the fourth fiscal year following the latest fiscal year.

+ References

No definition available.

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Amount of amortization of unearned lease income, net of initial direct costs deferred, related to net investment in sales-type and direct financing leases expected to be recognized in third fiscal year following current fiscal year.

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Amount of amortization of unearned lease income, net of initial direct costs deferred, related to net investment in sales-type and direct financing leases expected to be recognized in second fiscal year following current fiscal year.

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Amount of undiscounted cash flows to be received by lessor for sales-type and direct financing leases after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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