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Operating Leases: (Tables) | 12 Months Ended
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Dec. 26, 2020
Operating Leases: |
Schedule of maturities of operating lease liabilities | ​
​ | ​ | ​ | ​
Operating Lease Liabilities expected to be recognized in |  | Amount
2021 | ​ | $ | 723,100
2022 | ​ |  | 742,900
2023 | ​ |  | 763,300
2024 | ​ |  | 784,400
2025 | ​ |  | 806,000
Thereafter | ​ |  | 3,452,600
Total lease payments | ​ | ​ | 7,272,300
Less imputed interest | ​ | ​ | (1,546,500)
Present value of lease liabilities | ​ | $ | 5,725,800
Schedule of supplemental cash flow information related to operating leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended
​ |  | December 26, 2020 |  | December 28, 2019
Cash paid for amounts included in the measurement of lease liabilities: | ​ | ​ | ​ | ​ | ​ | ​
Operating cash flow outflow from operating leases | ​ | $ | 703,700 | ​ | $ | 493,900
Schedule of minimum rental commitments under noncancelable operating leases, made in accordance with accountaing guidance from the prior year | ​

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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details
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- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121573735&loc=d3e41502-112717 + Details
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- Definition Tabular disclosure of supplemental cash flow information related to operating leases. + References No definition available. + Details
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