Document and Entity Information [Abstract] Document and entity information. Statement [Table] Statement [Line Items] Document Type Amendment Flag Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Consolidated Balance Sheets [Abstract] Investments in real estate: Real Estate Investment Property, at Cost [Abstract] Rental properties Real Estate Investment Property, at Cost Real Estate Investment Property, Accumulated Depreciation Accumulated depreciation Real Estate Investment Property, Net Rental properties, net Cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash and Cash Equivalents, at Carrying Value Accounts receivable, net Accounts Receivable, Net Deferred Leasing and Financing Costs Deferred costs, net of accumulated amortization of $2,115 and $1,938 as of September 30, 2012 and December 31, 2011, respectively This element represents costs incurred by the lessor that are (a) costs to originate a lease incurred in transactions with independent third parties that (i) result directly from and are essential to acquire that lease and (ii) would not have been incurred had that leasing transaction not occurred and (b) certain costs directly related to specified activities performed by the lessor for that lease. Those activities are: evaluating the prospective lessee's financial condition; evaluating and recording guarantees, collateral, and other security arrangements; negotiating lease terms; preparing and processing lease documents; and closing the transaction. This element is net of accumulated amortization, combined with, for an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain. Prepaid expenses and other assets Prepaid Expense and Other Assets Total assets Assets Liabilities: Liabilities [Abstract] Notes payable Notes Payable Accounts payable and other liabilities Accounts Payable and Accrued Liabilities Prepaid rent Prepaid Rent Total liabilities Liabilities Commitments and contingent liabilities (Note 7) Commitments and Contingencies Partners' Equity (Deficit): Partners' Capital [Abstract] General Partner General Partners' Capital Account Limited partners, 83,898 limited partnership units outstanding as of September 30, 2012 and December 31, 2011 Limited Partners' Capital Account Total partners' equity Balance (deficit) at December 31, 2011 Balance (deficit) at September 30, 2012 Partners' Capital Total liabilities and partners' equity Liabilities and Equity Accumulated Amortization Deferred Leasing And Financing Costs Accumulated amortization on deferred costs For an unclassified balance sheet, the accumulated amortization, as of the reporting date, which represents the periodic charge to earnings of initial direct costs which have been deferred and are being allocated over the lease term in proportion to the recognition of rental income, combined with, for an unclassified balance sheet, the accumulated amortization, as of the reporting date, representing the periodic charge to earnings of deferred costs which are associated with debt obligations existing as of the end of the period. Limited partners, limited partnership units outstanding Units outstanding Limited Partners' Capital Account, Units Outstanding Consolidated Statements of Operations [Abstract] Operating revenue Revenues [Abstract] Rental revenue and other Operating Leases, Income Statement, Lease Revenue Tenant reimbursements Tenant Reimbursements Total operating revenue Real Estate Revenue, Net Operating expenses Costs And Expenses [Abstract] Property operating expenses Cost of Real Estate Revenue Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction General and administrative General and Administrative Expense Total operating expenses Operating Expenses Operating loss Operating Income (Loss) Interest expense (including amortization of loan fees) Interest Expense Net loss Net loss Net Income (Loss) Attributable to Parent Basic and Diluted Net Loss per Limited Partnership Unit Basic and diluted net loss per limited partnership unit The amount of net income or loss for the period per each limited partnership unit outstanding during the reporting period. Weighted average number of limited partnership units outstanding during each period Weighted Average Limited Partnership Units Outstanding, Basic Consolidated Statement of Partners' Equity [Abstract] Related Party Transactions, by Related Party [Axis] Related Party [Domain] General Partner General Partner [Member] General Partner [Member] Limited Partners Limited Partner [Member] Limited Partner [Member] Consolidated Statements of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Amortization of loan fees, included in interest expense Amortization of Financing Costs Changes in certain assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Deferred costs Increase (Decrease) in Deferred Charges Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Prepaid rent Increase (Decrease) in Prepaid Rent Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Additions to real estate investments Payments for Capital Improvements Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Notes payable principal payments Repayments of Notes Payable Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid for interest Interest Paid Supplemental Disclosure of Non Cash Operating Activities [Abstract] Supplemental disclosure of non-cash operating activities: Supplemental disclosure of non-cash operating activities. Write Off of Fully Depreciated Rental Property Assets Write-off of fully depreciated rental property assets Write-off of fully depreciated rental property assets. Write Off of Fully Amortized Deferred Costs Write-off of fully amortized deferred costs Write-off of fully amortized deferred costs Organization [Abstract] ORGANIZATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Significant Accounting Policies [Abstract] SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] INVESTMENTS IN REAL ESTATE Real Estate Disclosure [Text Block] Notes Payable [Abstract] NOTES PAYABLE Debt Disclosure [Text Block] RELATED PARTY TRANSACTIONS Related Party Transactions. Commitments and Contingent Liabilities [Abstract] COMMITMENTS AND CONTINGENT LIABILITIES Commitments and Contingencies Disclosure [Text Block] Assets Assets [Abstract] Liabilities and Partners' Equity (Deficit) Liabilities and Equity [Abstract] Rental Properties [Policy Text Block] Rental properties. Rental Properties Basis of Presentation Basis of Presentation and Significant Accounting Policies [Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Fair Value of Investments Fair Value Measurement, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Deferred Costs Deferred Charges, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Concentration Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Land held for development Land Available for Development Total investments in real estate Real Estate Investments, Net Interest and other income Interest and Other Income Land Held For Development [Text Block] LAND HELD FOR DEVELOPMENT Schedule of carrying amount net of impairment reserves as of the balance sheet date primarily consisting of deposits for land purchases (including option payments), related acquisition costs, and land which is not expected to be developed in the next two years. Construction in Progress and Land Held for Development Real Estate Held for Development and Sale, Policy [Policy Text Block] Organization (Textual) [Abstract] Organization. Organization (Textual) [Abstract] Number Of Employees In Partnership Number of employees in the partnership. Number of employees in the partnership Net Income Other Than Net Income From Operations Allocated To Partners Allocation of Net income other than net income from operations to partners Net income other than net income from operations allocated to partners. Distribution Of Cash From Other Sources Distribution of cash from other sources. Distribution of cash from other sources Partner Type [Axis] Partner Type of Partners' Capital Account, Name [Domain] Net Loss Income Per Unit [Table Text Block] Net income per Unit Net (loss) income per unit. Loss Income Allocation (Loss) Income allocation: (Loss) Income allocation. Furniture and equipment [Member] Furniture and Fixtures [Member] Significant Accounting Policies (Textual) [Abstract] Significant Accounting Policies (Textual) [Abstract] Significant accounting policies. Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Range [Axis] Range [Domain] Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] Property, Plant and Equipment [Line Items] Land [Member] Land [Member] Buildings [Member] Building [Member] Building and tenant improvements [Member] Building and Building Improvements [Member] Investments In Real Estate (Textual) [Abstract] Investments in real estate. Investments In Real Estate (Textual) [Abstract] Subsequent improvements to land held for development Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements Cost of the land Real Estate and Accumulated Depreciation, Initial Cost of Land Annual maturities on the Partnership's notes payable Schedule of Maturities of Long-term Debt [Table Text Block] Partnership continues to engage Glenborough LLC to perform services Schedule of Related Party Transactions [Table Text Block] Related Party Transactions (Textual) [Abstract] Related party transactions. Related Party Transactions (Textual) [Abstract] Percentage Of Sale Fee Of Properties Sales fee for all properties Percentage of sale fee of properties. Financing Servicing Fee Of Gross Loan Amount Financing service fee for the gross loan amount Financing servicing fee of gross loan amount. Development Fee Of Hard Costs Of Development Project Development fee of hard costs of development project Development fee of hard costs of development project. Commitments And Contingent Liabilities (Textual) [Abstract] Commitments and contingent liabilities. Commitments And Contingent Liabilities (Textual) [Abstract] Notes Payable (Textual) [Abstract] Notes payable. Notes Payable (Textual) [Abstract] Notes Payable Two [Member] Notes payable two. Notes Payable 2 [Member] Fixed interest rate Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate Maturity date Debt Instrument, Maturity Date Amortization period Debt Instrument, Convertible, Remaining Discount Amortization Period Land Held for Development [Abstract] Land held for development. Allocation Of Net Income And Net Losses From Operations To Partner Allocation of net income and net losses from operations Allocation of net income and net losses from operations to partner. Additional Cumulative Non Compounded Percentage Return To Be Used Under Option Two Additional cumulative non-compounded percentage return to be used under option two Additional cumulative non-compounded percentage return to be used under option two. Ratio Of Limited Partners To General Partners Ratio of limited partners to general partners. Ratio of limited partners to general partners Percentage Of Cash Other Than Cash From Operations To Be Distributed To Partner Under Option One Percentage of cash other than cash from operations to be distributed to partner under option one. Percentage of cash other than cash from operations to be distributed to partner under option one Percentage Of Cash Other Than Cash From Operations To Be Distributed To Partner Under Option Two Percentage of cash other than cash from operations to be distributed to partner under option two. Percentage of cash other than cash from operations to be distributed to partner under option two Annual Cumulative Non Compounded Return Percentage On Adjusted Invested Capital Annual cumulative non-compounded return percentage on Adjusted Invested Capital Annual cumulative non-compounded return percentage on adjusted invested capital. Percentage Of Cash Other Than Cash From Operations To Be Distributed To Partner Under Option Three Percentage of cash other than cash from operations to be distributed to partner under option three Percentage of cash other than cash from operations to be distributed to partner under option three. Percentage Of Cash Distribution From Sales And Refinancing To Be Considered Under Option Three Percentage of cash distribution from sales and refinancing to be considered under option three. Percentage of cash distribution from sales and refinancing to be considered under option three Percentage Of Cash Other Than Cash From Operations To Be Distributed To Partner Under Option Four Percentage of cash other than cash from operations to be distributed to partner under option four. Percentage of cash other than cash from operations to be distributed to partner under option four Net Income (Loss) Allocated to General Partners Net loss, General Partner Net loss, Limited Partners Net Income (Loss) Allocated to Limited Partners Useful life of building and improvements (all) Property, Plant and Equipment, Useful Life Revenues Revenue Recognition, Policy [Policy Text Block] Net (Loss) Income Per Limited Partnership Unit Earnings Per Share, Policy [Policy Text Block] Components Of Rental Properties [Table Text Block] Components of rental properties Components of rental properties. Components Of Rental Properties [Abstract] Components of rental properties Components of rental properties. Rental revenue from one major tenant Entity-Wide Revenue, Major Customer, Percentage Rental Properties Rental Properties Land and Land Improvements [Member] Land and improvements [Member] Land Held For Development [Table Text Block] Land held for development. Land held for development East Lake Restaurant Pad Land [Member] East Lake Restaurant Pad [Member] East lake restaurant pad land. Other Land Held For Development [Member] Land Held for Development [Member] Other land held for development. Provision for impairment of real estate Provision for impairment Impairment of Real Estate Area of land Area of Land Notes payable Schedule of Debt [Table Text Block] Notes Payable One [Member] Notes Payable 1 [Member] Notes payable one. 2013 Long-term Debt, Maturities, Repayments of Principal in Year Two 2014 Long-term Debt, Maturities, Repayments of Principal in Year Three 2015 Long-term Debt, Maturities, Repayments of Principal in Year Four 2016 Long-term Debt, Maturities, Repayments of Principal in Year Five Total Long-term Debt Monthly principal and interest payments Debt Instrument, Periodic Payment Land Held For Development (Textual) [Abstract] Land held for development. Land Held For Development (Textual) [Abstract] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Debt Instrument [Line Items] Notes payable Debt Instruments [Abstract] Annual maturities on the Partnership's notes payable Maturities of Long-term Debt [Abstract] Commissions payable to General Partner Accrued Sales Commission, Current Property Management Fees Related Party Included In Property Operating Expense Property management fees of 2.5% of gross rental revenue which were included in property operating expenses in the accompanying consolidated statements of operations Property management fees related party included in property operating expense. Construction Services Fees Related Party Capitalized Construction services fees which were capitalized and included in rental properties on the accompanying consolidated balance sheets Construction services fees related party capitalized. Asset And Partnership Management Fee Related Party Included In General And Administrative Expenses An asset and Partnership management fee which was included in general and administrative expenses in the accompanying consolidated statements of operations Asset and partnership management fee related party included in general and administrative expenses. Leasing Services Fees Related Party Included In Deferred Costs Leasing services fees which were included in the deferred costs on the accompanying consolidated balance sheets Leasing services fees related party included in deferred costs. Sales Fee Related Party A sales fee of 1% for all properties, which were included in net gain on sale of property Sales fee related party. Financing Services Fee Related Party Included In Deferred Costs A financing services fee of 1% of the gross loan amount which would be included in the deferred costs on the accompanying consolidated balance sheets Financing services fee related party included in the deferred costs. Data Processing Fees Related Party Included In Property Operating Expenses Data processing fees which were included in property operating expenses in the accompanying consolidated statements of operations Data processing fees related party included in property operating expenses. Engineering Fees Related Party Included In Property Operating Expenses Engineering fees which were included in property operating expenses in the accompanying consolidated statements of operations Engineering fees related party included in property operating expenses. Glenborough Property Partners [Member] Glenborough Property Partners [Member] Glenborough property partners. Partnership continues to engage Glenborough LLC to perform services Related Party Tax Expense [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Line Items] Units of partnership interest amount Units of Partnership Interest, Amount Ownership percentage of noncontrolling interest Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Investments In Real Estate [Abstract] Minimum Amount To Be Allocated To Partners From Net Income Other Than Net Income From Operations Minimum amount to be allocated to partners from net income other than net income from operations Minimum amount to be allocated to partners from net income other than net income from operations.