Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
INVESTMENT PROPERTIES: (Note 3)
Land	$ 2,794,122us-gaap_Land	$ 2,956,118us-gaap_Land
Buildings	4,468,642	5,028,698
Accumulated depreciation	(3,667,557)	(3,984,986)
Net investment properties	3,595,207us-gaap_RealEstateInvestmentPropertyNet	3,999,830us-gaap_RealEstateInvestmentPropertyNet
OTHER ASSETS:
Cash	704,531us-gaap_Cash	244,319us-gaap_Cash
Cash held in Indemnification Trust (Note 9)	452,912	452,645
Property tax cash escrow	2,530us-gaap_EscrowDeposit	25,697us-gaap_EscrowDeposit
Security deposits escrow	70,795zzdd_SecurityDepositEscrow	70,765zzdd_SecurityDepositEscrow
Rents and other receivables	500,746	470,478
Deferred tenant award proceeds escrow	150,657zzdd_DeferredRentCreditEscrow	171,948zzdd_DeferredRentCreditEscrow
Deferred rent receivable	0us-gaap_DeferredRentReceivablesNet	2,250us-gaap_DeferredRentReceivablesNet
Prepaid insurance	7,597us-gaap_PrepaidInsurance	4,992us-gaap_PrepaidInsurance
Deferred charges, net	160,074us-gaap_DeferredCostsLeasingNet	178,987us-gaap_DeferredCostsLeasingNet
Note receivable (Note 11)	115,339us-gaap_NotesReceivableNet	163,491us-gaap_NotesReceivableNet
Total other assets	2,165,181us-gaap_OtherAssets	1,785,572us-gaap_OtherAssets
Total assets	5,760,388us-gaap_Assets	5,785,402us-gaap_Assets
CURRENT LIABILITIES:
Accounts payable and accrued expenses	27,108	50,979
Property tax payable	1,605	25,701
Due to General Partner (Note 6)	3,254zzdd_PayableToGeneralPartner	1,227zzdd_PayableToGeneralPartner
Deferred rent	149,971us-gaap_DeferredRentCreditCurrent	171,918us-gaap_DeferredRentCreditCurrent
Security deposits	70,440us-gaap_SecurityDepositLiability	70,440us-gaap_SecurityDepositLiability
Unearned rental income	5,000us-gaap_DeferredRevenue	5,000us-gaap_DeferredRevenue
Total current liabilities	257,378us-gaap_Liabilities	325,265us-gaap_Liabilities
CONTINGENCIES AND COMMITMENTS (Notes 8 and 9)
General Partner -
Cumulative net income (retained earnings)	343,188	334,153
Cumulative cash distributions	(142,595)	(139,006)
Total general partners' capital	200,593us-gaap_GeneralPartnersCapitalAccount	195,147us-gaap_GeneralPartnersCapitalAccount
Limited Partners (46,280.3 interests outstanding at December 31, 2014 and December 31, 2013)
Capital contributions	46,280,300	46,280,300
Offering Costs	(6,921,832)us-gaap_LimitedPartnersOfferingCosts	(6,921,832)us-gaap_LimitedPartnersOfferingCosts
Cumulative net income (retained earnings)	40,341,446	39,447,019
Cumulative cash distributions	(73,557,268)	(72,700,268)
Total limited partners' capital	6,142,646us-gaap_LimitedPartnersCapitalAccount	6,105,219us-gaap_LimitedPartnersCapitalAccount
Former General Partner -
Cumulative net income (retained earnings)	707,513	707,513
Cumulative cash distributions	(1,547,742)	(1,547,742)
Total former general partners' capital	(840,229)	(840,229)
Total partners' capital	5,503,010us-gaap_PartnersCapital	5,460,137us-gaap_PartnersCapital
Total liabilities and partners' capital	$ 5,760,388	$ 5,785,402

Amount due from customers, clients, or other third-parties, or arising from transactions not separately disclosed, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

No definition available.