Document and Entity Information [Abstract] Document and Entity Information [Abstract] Document and Entity Information. Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Trading Symbol Trading Symbol Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Statement Of Financial Position [Abstract] Statement of Financial Position [Abstract] Assets [Abstract] Assets Cash and Cash Equivalents, At Carrying Value Cash and cash equivalents Cash and cash equivalents, ending Cash and cash equivalents, beginning Cash and cash equivalents, ending Real Estate Investment Property, Net Investments in Local Limited Partnerships Investments in Local Limited Partnerships (Note 1) Investments in Local Limited Partnerships Other Assets Other assets Other assets Assets Total Assets Total Assets Liabilities and Equity [Abstract] Liabilities and Partners' Equity Due To Affiliate Due to affiliate Accrued Liabilities Accrued expenses Accrued expenses Liabilities Total Liabilities Total Liabilities Partners Capital Value General, Initial and Investor Limited Partners' Equity General, Initial and Investor Limited Partners' Equity Balance Balance Liabilities and Equity Total Liabilities and Partners' Equity Total Liabilities and Partners' Equity Income Statement [Abstract] Income Statement [Abstract] Revenues [Abstract] Revenue: Interest Income, Operating Investment Investment Revenues Total Revenue Total Revenue Operating Expenses [Abstract] Expenses: Fund Management Fee Asset management fees, affiliate Amount of fund management fee incurred by the entity during the period. Other Than Temporary Impairment Losses, Investments Impairment on investments in Local Limited Partnerships Impairment on investments in Local Limited Partnerships Selling, General and Administrative Expense General and administrative (includes reimbursements to an affiliate in the amounts of $11,343 and $7,780 for the three months and $24,241 and $24,071 for the six months ended September 30, 2012 and 2011, respectively) General and administrative (includes reimbursements to an affiliate in the amount of $16,290 and $27,783 in 2011 and 2010, respectively) Amortization Of Acquisition Costs Amortization Amortization Amortization Total Expenses Total Expenses Total Expenses Total amount of expenses incurred during the year by the entity. Income (Loss) From Continuing Operations Before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Loss before equity in income (losses) of Local Limited Partnerships Loss before equity in loss of Local Limited Partnership Partnerships Income (Loss) From Equity Method Investments Equity in income (losses) of Local Limited Partnerships (Note 1) Equity in income of Local Limited Partnerships (Note 1) Equity in income of Local Limited Partnerships (Note 1) Equity in income of Local Limited Partnerships Loss On Sale Of Investments Loss on disposition of investments in Local Limited Partnerships Loss on disposition of investments in Local Limited Partnerships (Note 1) Net Income (Loss) Attributable To Parent Net Loss Net Loss Net Loss Partnership Income [Abstract] Net Loss allocated: Net Income (Loss) Allocated To General Partners General Partner Net Income (Loss) Allocated To Limited Partners Limited Partners Limited Partners Net Income (Loss) Allocated To Partners Net Loss Per Limited Partner Net Loss allocated to Partners Aggregate total amount of net income allocated to the partners. Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic Net Loss Per Limited Partner Unit (36,497 Units) Net Loss Per Limited Partner Unit (36,497 Units) Statements Of Operations Parenthetical [Abstract] Statements Of Operations Parenthetical [Abstract] Statements Of Operations Parenthetical. Reimbursements To Affiliate Reimbursements to affiliate (in dollars) Amount of general and administrative expenses reimbursed to an affiliate during the period. Limited Partner Units Limited Partner Units The average number of shares or units issued and outstanding that are used in calculating basic and diluted EPS. Statement Of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Related Party Transactions, By Related Party [Axis] Related Party Transactions, by Related Party [Axis] General Partner [Member] Limited Partner [Member] Initial Limited Partner [Member] Investor [Member] Investor Limited Partners [Member] Statement Of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Net Cash Provided By (Used In) Operating Activities [Abstract] Cash flows from operating activities: Adjustments To Reconcile Net Income (Loss) To Cash Provided By (Used In) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used Adjustments to reconcile net loss to net cash used for operating activities: Increase (Decrease) In Operating Capital [Abstract] Increase (decrease) in cash arising from changes Increase (decrease) in cash arising from changes in operating assets and liabilities: Increase (Decrease) In Other Operating Assets Other assets Other assets Increase (Decrease) In Due To Affiliates Due to affiliate Increase (Decrease) In Accrued Liabilities Accrued expenses Net Cash Provided By (Used In) Operating Activities Net cash used for operating activities Net cash used for operating activities Cash Flows From Investing Activities: Cash flows from investing activities: Proceeds From Limited Partnership Investments Proceeds received from disposition of investments in Local Limited Partnerships Proceeds from Limited Partnership Investments Cash Distributions Received From Local Limited Partnerships Cash distributions received from Local Limited Partnerships Value represent the cash distributions received from local limited partnerships Net Cash Provided By (Used In) Investing Activities Net cash provided by investing activities Net cash provided by investing activities Cash and Cash Equivalents, Period Increase (Decrease) Net decrease in cash and cash equivalents Net increase (decrease) in cash and cash equivalents Accounting Policies [Abstract] Accounting Policies [Abstract] Basis Of Accounting [Text Block] Basis of Accounting [Text Block] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments Disclosure [Text Block] Equity Method Investments Disclosure [Text Block] Significant Subsidiaries [Abstract] Significant Subsidiaries [Abstract] Significant Subsidiaries Significant Subsidiaries [Text Block] Significant Subsidiaries [Text Block] Disclosure on significant subsidiaries of the entity. Schedule Of Local Limited Partnership Investments [Table Text Block] Schedule Of Local Limited Partnership Investments [Table Text Block] Tabular disclosure of local limited partnership investments. Schedule Of Equity Method Investments [Table Text Block] Schedule of Equity Method Investments [Table Text Block] Limited Partners Cumulative Earnings Sharing Percentage Limited Partners Cumulative Earnings Sharing Percentage Percentage of cumulative earnings allocated to the limited partners based on the sharing of income or losses between general and limited partners as specified in the partnership agreement. General Partner Cumulative Earnings Sharing Percentage General Partners Cumulative Earnings Sharing Percentage Percentage of cumulative earnings allocated to the general partner based on the sharing of income or losses between general and limited partners as specified in the partnership agreement. Net Proceeds From Sale Refinancing, Limited Partners, Sharing Percentage Net Proceeds From Sale Refinancing, Limited Partners, Sharing Percentage The percentage of cumulative amount of earnings allocated to general partners as a result of net proceeds from sale or refinancing. Net Proceeds From Sale Refinancing General Partner Sharing Percentage Net Proceeds From Sale Refinancing, General Partners, Sharing Percentage The percentage of cumulative amount of earnings allocated to limited partners as a result of net proceeds from sale or refinancing. Capital Contributions and Advances Paid To Local Limited Partnerships Capital contributions and advances paid to Local Limited Partnerships Capital contributions and advances made to local limited partnership investments as of balance sheet date. Cumulative Equity In Losses Of Local Limited Partnership Recognized Cumulative equity in losses of Local Limited Partnerships (excluding cumulative unrecognized losses of $3,478,376 and $3,202,928 at September 30 and March 31, 2012, respectively This item represents the cumulative equity in losses of local limited partnership investments as of balance sheet date. Cumulative equity in losses of Local Limited Partnerships (excluding cumulative unrecognized losses of $3,478,376 and $3,202,928 at September 30 and March 31, 2012, respectively) Cumulative Cash Distributions Received From Limited Partnerships Cumulative cash distributions received from Local Limited Partnerships This item represents cumulative cash distributions received from limited partnership investments as of balance sheet date. Cumulative cash distributions received from Local Limited Partnerships Investments In Local Limited Partnerships Before Adjustments Investments in Local Limited Partnerships before adjustments Investments in Local Limited Partnerships before adjustments Total investments in local limited partnership before adjustments as of balance sheet date. Excess Investment Costs Over Underlying Assets Acquired Abstract Excess investment costs over the underlying assets acquired: Acquisition Fees and Expenses Acquisition fees and expenses The cumulative amount recorded pertaining to the acquisition fees and expenses as of balance sheet date. Cumulative Amortization Of Acquisition Fees and Expenses Cumulative amortization of acquisition fees and expenses The cumulative amount recorded pertaining to amortization of acquisition fees and expenses as of balance sheet date. Cumulative amortization of acquisition fees and expenses Investments In Local Limited Partnerships Before Valuation Allowance and Impairment Investments in Local Limited Partnerships before valuation allowance and impairment Investments in Local Limited Partnerships before valuation allowance and impairment The carrying value of investment recorded as of the balance sheet date pertaining to Investments in Local Limited Partnerships before valuation allowance as of balance sheet date. Cumulative Valuation Allowance On Advances To Local Limited Partnerships Cumulative valuation allowance on advances to Local Limited Partnerships The cumulative amount recorded pertaining to valuation allowance on advances to Local Limited partnership as of balance sheet date. Cumulative valuation allowance on advances to Local Limited Partnerships Cumulative Impairment On Investments In Local Limited Partnerships Cumulative impairment on investments in Local Limited Partnerships The cumulative amount recorded pertaining to impairment on Local Limited partnership investment as of balance sheet date. Cumulative impairment on investments in Local Limited Partnerships Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Other Local Limited Partnerships [Member] Hemlock Ridge Limited Partnership [Member] Cumulative Unrecognized Equity Losses In Local Limited Partnerships Cumulative Unrecognized Equity Losses In Local Limited Partnerships Represents the value of cumulative unrecognized equity losses in local limited partnerships as of balance sheet date. Subsidiary Of Limited Liability Company Or Limited Partnership, Ownership Interest Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest Unrecognized Equity Losses On Local Limited Partnership Investments Unrecognized Equity Losses On Local Limited Partnership Investments Represents unrecognized loss from local limited liability partnership investments due to cumulative distributions and losses exceeds the total investments. Investment Owned, At Fair Value Investment Owned, at Fair Value Net Equity Income Loss On Local Limited Partnership Investments Net Equity Income Loss On Local Limited Partnership Investments Represents the net income/loss is from Local Limited Partnerships to the Fund. Unrecognized Equity Losses In Local Limited Partnerships Represents the value of unrecognized equity losses in local limited partnerships during the period. Previously Unrecognized Equity Losses in Local Limited Partnerships Equity Method Investment, Summarized Financial Information, Revenue Revenue Equity Method Investment, Summarized Financial Information, Net Income (Loss) Net Income Equity Method Investment, Ownership Percentage Criteria Equity Method Investment, Ownership Percentage Criteria Description about the percentage criteria of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Related Party [Domain] Related Party [Domain] Schedule Of Equity Method Investment, Equity Method Investee, Name [Axis] Schedule of Equity Method Investment, Equity Method Investee, Name [Axis] Equity Method Investee, Name [Domain] Equity Method Investee, Name [Domain] Oak Knoll Renaissance, Limited Partnership [Member]