Investment Properties and Properties Held For Sale - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended		9 Months Ended								9 Months Ended
	May 31, 2013	Sep. 30, 2013 Property State	Sep. 30, 2012	Sep. 30, 2013 Property State	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013 Wendy's restaurants [Member] Property	Nov. 30, 2010 Wendy's restaurants [Member] sqft	Sep. 30, 2013 An Applebee restaurant [Member] Property	Sep. 30, 2013 KFC Restaurant [Member] Property	Sep. 30, 2013 Daytona's All Sports cafe [Member] Property	Sep. 30, 2013 Wendcharles I [Member]	Sep. 30, 2013 First Extension [Member]	Sep. 30, 2013 Second Extension [Member]
Long Lived Assets Held-for-sale [Line Items]
Property leased to fully constructed fast-food restaurants		12		12			9		1	1	1
Location of properties		5		5
Compensation offerer Eminent domain (condemnation) land acquisition								$ 177,000
Eminent domain (condemnation) land acquisition								5,000
Area of land under rental agreement								44,000
Settlement value of condemnation action	871,500
Condemnation settlement compensation allocated	724,247
Monies on deposit allocated to tenant												181,062
Total rent reduction on the balance of leases												181,062
Rent reduction in monthly saving for tenant												1,829
Renewal option lease term												5 years
Amendment renewed lease term beginning													Nov. 07, 2021
Amendment renewed lease term ending													Nov. 06, 2026
Monthly rent for the remainder of the lease													4,611.09	6,440.00
Lease agreement effective date				Nov. 06, 2021
Partnership recognized income (losses) from discontinued operations		0	(10,144)	302,704	(33,064)
Properties held for sale		$ 0		$ 0		$ 33,991	$ 0