Investment in Leasing Operations: (Details 3) (USD $)	Sep. 28, 2013	Dec. 29, 2012
Direct Financing and Sales-Type Leases, Minimum Lease Payments Receivable
2013	$ 5,862,700
2014	19,388,800
2015	9,836,500
2016	1,972,000
2017	1,800
Total	37,061,800	33,094,100
Direct Financing and Sales-Type Leases, Income Amortization
2013	1,635,700
2014	3,071,800
2015	790,500
2016	46,600
2017	100
Total	5,544,700
Operating Leases, Minimum Lease Payments Receivable
2013	429,100
2014	332,000
2015	49,900
Total	$ 811,000

Amount of minimum lease payments to be received by the lessor for capital leases.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6952072&loc=d3e45377-112738

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 13

-Paragraph 23

-Subparagraph a(i)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.