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N-2 - USD ($) |  |  |  |  |  | 6 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Jun. 30, 2023
Cover [Abstract] |  |  |  |  |  |  |  |
Entity Central Index Key |  |  |  |  |  |  | 0001140411 |
Amendment Flag |  |  |  |  |  |  | false |
Document Type |  |  |  |  |  |  | N-CSRS |
Entity Registrant Name |  |  |  |  |  |  | PIMCO California Municipal Income Fund |
Financial Highlights [Abstract] |  |  |  |  |  |  |  |
Senior Securities [Table Text Block] |  |  |  |  |  |  | Ratios/Supplemental Data
|  | ARPS |  |  | RVMTP (5) |
Selected Per Share Data for the Year Ended^: |  | Total Amount Outstanding |  |  | Asset Coverage per Preferred Share (1) |  |  | Involuntary Liquidating Preference per Preferred Share (2) |  |  | Average Market Value per ARPS (3) |  |  | Total Amount Outstanding |  |  | Asset Coverage per Preferred Share (1) |  |  | Involuntary Liquidating Preference per Preferred Share (2) |  |  | Average Market Value per RVMTP (4) |
PIMCO Municipal Income Fund |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
1/1/2023 - 6/30/2023+ |  | $ | 166,700,000 |  |  | $ | 59,490 |  |  | $ | 25,000 |  |  |  | N/A |  |  | $ | 18,200,000 |  |  | $ | 237,960 |  |  | $ | 100,000 |  |  |  | N/A |
12/31/2022 |  |  | 166,700,000 |  |  |  | 58,598 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 18,200,000 |  |  |  | 234,390 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2021 |  |  | 166,700,000 |  |  |  | 70,665 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 23,300,000 |  |  |  | 282,660 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2020 |  |  | 166,700,000 |  |  |  | 70,133 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 23,300,000 |  |  |  | 280,530 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2019 |  |  | 166,700,000 |  |  |  | 70,395 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 23,300,000 |  |  |  | 281,580 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2018 |  |  | 166,700,000 |  |  |  | 66,868 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 23,300,000 |  |  |  | 267,440 |  |  |  | 100,000 |  |  |  | N/A |
PIMCO Municipal Income Fund II |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
1/1/2023 - 6/30/2023+ |  | $ | 298,275,000 |  |  | $ | 65,475 |  |  | $ | 25,000 |  |  |  | N/A |  |  | $ | 68,700,000 |  |  | $ | 261,900 |  |  | $ | 100,000 |  |  |  | N/A |
12/31/2022 |  |  | 298,275,000 |  |  |  | 64,345 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 68,700,000 |  |  |  | 257,380 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2021 |  |  | 298,275,000 |  |  |  | 78,363 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 68,700,000 |  |  |  | 313,450 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2020 |  |  | 298,275,000 |  |  |  | 78,293 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 68,700,000 |  |  |  | 313,170 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2019 |  |  | 298,275,000 |  |  |  | 78,308 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 68,700,000 |  |  |  | 313,230 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2018 |  |  | 298,275,000 |  |  |  | 74,285 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 68,700,000 |  |  |  | 297,110 |  |  |  | 100,000 |  |  |  | N/A |
PIMCO Municipal Income Fund III |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
1/1/2023 - 6/30/2023+ |  | $ | 154,700,000 |  |  | $ | 61,388 |  |  | $ | 25,000 |  |  |  | N/A |  |  | $ | 34,300,000 |  |  | $ | 245,550 |  |  | $ | 100,000 |  |  |  | N/A |
12/31/2022 |  |  | 154,700,000 |  |  |  | 60,383 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 34,300,000 |  |  |  | 241,530 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2021 |  |  | 154,700,000 |  |  |  | 75,200 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 34,300,000 |  |  |  | 300,800 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2020 |  |  | 154,700,000 |  |  |  | 74,833 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 34,300,000 |  |  |  | 299,330 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2019 |  |  | 154,700,000 |  |  |  | 74,565 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 34,300,000 |  |  |  | 298,260 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2018 |  |  | 154,700,000 |  |  |  | 70,693 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 34,300,000 |  |  |  | 282,740 |  |  |  | 100,000 |  |  |  | N/A |
PIMCO California Municipal Income Fund |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
1/1/2023 - 6/30/2023+ |  | $ | 120,625,000 |  |  | $ | 59,108 |  |  | $ | 25,000 |  |  |  | N/A |  |  | $ | 24,400,000 |  |  | $ | 236,430 |  |  | $ | 100,000 |  |  |  | N/A |
12/31/2022 |  |  | 120,625,000 |  |  |  | 58,655 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 24,400,000 |  |  |  | 234,620 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2021 |  |  | 120,625,000 |  |  |  | 69,408 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 29,300,000 |  |  |  | 277,630 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2020 |  |  | 120,625,000 |  |  |  | 69,948 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 29,300,000 |  |  |  | 279,790 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2019 |  |  | 120,625,000 |  |  |  | 69,580 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 29,300,000 |  |  |  | 278,320 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2018 |  |  | 120,625,000 |  |  |  | 66,725 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 29,300,000 |  |  |  | 266,870 |  |  |  | 100,000 |  |  |  | N/A |
PIMCO California Municipal Income Fund II |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
1/1/2023 - 6/30/2023+ |  | $ | 128,675,000 |  |  | $ | 59,153 |  |  | $ | 25,000 |  |  |  | N/A |  |  | $ | 27,500,000 |  |  | $ | 236,610 |  |  | $ | 100,000 |  |  |  | N/A |
12/31/2022 |  |  | 128,675,000 |  |  |  | 58,680 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 27,500,000 |  |  |  | 234,720 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2021 |  |  | 128,675,000 |  |  |  | 69,970 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 34,300,000 |  |  |  | 279,880 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2020 |  |  | 128,675,000 |  |  |  | 70,035 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 34,300,000 |  |  |  | 280,140 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2019 |  |  | 128,675,000 |  |  |  | 69,188 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 34,300,000 |  |  |  | 276,750 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2018 |  |  | 128,675,000 |  |  |  | 65,675 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 34,300,000 |  |  |  | 262,670 |  |  |  | 100,000 |  |  |  | N/A |
PIMCO California Municipal Income Fund III |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
1/1/2023 - 6/30/2023+ |  | $ | 97,875,000 |  |  | $ | 59,810 |  |  | $ | 25,000 |  |  |  | N/A |  |  | $ | 27,100,000 |  |  | $ | 239,240 |  |  | $ | 100,000 |  |  |  | N/A |
12/31/2022 |  |  | 97,875,000 |  |  |  | 59,578 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 27,100,000 |  |  |  | 238,310 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2021 |  |  | 97,875,000 |  |  |  | 70,755 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 27,100,000 |  |  |  | 283,020 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2020 |  |  | 97,875,000 |  |  |  | 71,063 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 27,100,000 |  |  |  | 284,250 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2019 |  |  | 97,875,000 |  |  |  | 70,545 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 27,100,000 |  |  |  | 282,180 |  |  |  | 100,000 |  |  |  | N/A |
12/31/2018 |  |  | 97,875,000 |  |  |  | 67,188 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | 27,100,000 |  |  |  | 268,720 |  |  |  | 100,000 |  |  |  | N/A |
PIMCO New York Municipal Income Fund |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
1/1/2023 - 6/30/2023+ |  | $ | 41,025,000 |  |  | $ | 67,790 |  |  | $ | 25,000 |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |  |  | $ | 100,000 |  |  |  | N/A |
12/31/2022 |  |  | 41,025,000 |  |  |  | 66,640 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |  |  |  | 100,000 |  |  |  | N/A |
12/31/2021 |  |  | 41,025,000 |  |  |  | 83,005 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |  |  |  | 100,000 |  |  |  | N/A |
12/31/2020 |  |  | 41,025,000 |  |  |  | 82,318 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |  |  |  | 100,000 |  |  |  | N/A |
12/31/2019 |  |  | 41,025,000 |  |  |  | 82,875 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |  |  |  | 100,000 |  |  |  | N/A |
12/31/2018 |  |  | 41,025,000 |  |  |  | 78,545 |  |  |  | 25,000 |  |  |  | N/A |  |  |  | N/A |  |  |  | N/A |  |  |  | 100,000 |  |  |  | N/A |
^ | A zero balance may reflect actual amounts rounding to less than $0.01 or 0.01%.
+ | Unaudited
* | Annualized, except for organizational expense, if any.
(a) | Includes adjustments required by U.S. GAAP and may differ from net asset values and performance reported elsewhere by the Funds.
(b) | Per share amounts based on average number of common shares outstanding during the year or period.
(c) | The tax characterization of distributions is determined in accordance with Federal income tax regulations. The actual tax characterization of distributions paid is determined at the end of the fiscal year. See Note 2, Distributions — Common Shares, in the Notes to Financial Statements for more information.
(d) | Auction Rate Preferred Shareholders (“ARPS”). See Note 13, Preferred Shares, in the Notes to Financial Statements for more information.
(e) | Total investment return is calculated assuming a purchase of a common share at the market price on the first day and a sale of a common share at the market price on the last day of each year or period reported. Dividends and distributions, if any, are assumed, for purposes of this calculation, to be reinvested at prices obtained under the Funds’ dividend reinvestment plan. Total investment return does not reflect brokerage commissions in connection with the purchase or sale of Fund shares.
(f) | Calculated on the basis of income and expenses applicable to both common and preferred shares relative to the average net assets of common shareholders. The expense ratio and net investment income do not reflect the effects of dividend payments to preferred shareholders.
(g) | Ratio includes interest expense which primarily relates to participation in borrowing and financing transactions, interest paid to RVMTP shareholders and the amortization of debt issuance costs of RVMTP Shares. See Note 5, Borrowings and Other Financing Transactions and Note 13, Preferred Shares in the Notes to Financial Statements for more information.
1 | “Asset Coverage per Preferred Share” means the ratio that the value of the total assets of the Fund, less all liabilities and indebtedness not represented by ARPS or RVMTP, bears to the aggregate of the involuntary liquidation preference of ARPS or RVMTP, expressed as a dollar amount per ARPS or RVMTP.
2 | “Involuntary Liquidating Preference” means the amount to which a holder of ARPS or RVMTP would be entitled upon the involuntary liquidation of the Fund in preference to the Common Shareholders, expressed as a dollar amount per Preferred Share.
3 | The ARPS have no readily ascertainable market value. Auctions for the ARPS have failed since February 2008, there is currently no active trading market for the ARPS and the Fund is not able to reliably estimate what their value would be in a third-party market sale. The liquidation value of the ARPS represents its liquidation preference, which approximates fair value of the shares less any accumulated unpaid dividends. See Note 13, Preferred Shares, in the Notes to Financial Statements for more information.
4 | The RVMTP have no readily ascertainable market value. The liquidation value of the RVMTP represents its liquidation preference, which approximates fair value of the shares less any unamortized debt issuance costs. See Note 13, Preferred Shares, in the Notes to Financial Statements for more information.
5 | Prior to July 14, 2021, RVMTP Shares were Variable Rate MuniFund Term Preferred Shares. See Note 13, Preferred Shares.
General Description of Registrant [Abstract] |  |  |  |  |  |  |  |
Investment Objectives and Practices [Text Block] |  |  |  |  |  |  | Investment Objective and Strategy Overview PIMCO California Municipal Income Fund’s investment objective is to seek to provide current income exempt from federal and California income tax. Fund Insights at NAV The following affected performance (on a gross basis) during the reporting period:
» |  | Exposure to the general obligation segment contributed to performance, as the segment posted positive returns.
» |  | Exposure to the special tax sector contributed to performance, as the sector posted positive returns.
» |  | Exposure to the healthcare sector contributed to performance, as the sector posted positive returns.
» |  | There were no material detractors for this Fund.
Share Price |  |  |  |  |  |  | $ 9.8 |
NAV Per Share |  |  |  |  |  |  | $ 10.44 |
Latest Premium (Discount) to NAV [Percent] |  |  |  |  |  |  | (6.13%) |
ARPS [Member] |  |  |  |  |  |  |  |
Financial Highlights [Abstract] |  |  |  |  |  |  |  |
Senior Securities Amount |  | $ 120,625,000 | $ 120,625,000 | $ 120,625,000 | $ 120,625,000 | $ 120,625,000 | $ 120,625,000 | [1]
Senior Securities Coverage per Unit | [2] | $ 58,655 | $ 69,408 | $ 69,948 | $ 69,580 | $ 66,725 | $ 59,108 | [1]
Preferred Stock Liquidating Preference | [3] | 25,000 | 25,000 | 25,000 | 25,000 | 25,000 | 25,000 | [1]
Senior Securities Average Market Value per Unit | [4] |  |  |  |  |  |  | [1]
RVMTP [Member] |  |  |  |  |  |  |  |
Financial Highlights [Abstract] |  |  |  |  |  |  |  |
Senior Securities Amount | [5] | $ 24,400,000 | $ 29,300,000 | $ 29,300,000 | $ 29,300,000 | $ 29,300,000 | $ 24,400,000 | [1]
Senior Securities Coverage per Unit | [2],[5] | $ 234,620 | $ 277,630 | $ 279,790 | $ 278,320 | $ 266,870 | $ 236,430 | [1]
Preferred Stock Liquidating Preference | [3],[5] | 100,000 | 100,000 | 100,000 | 100,000 | 100,000 | 100,000 | [1]
Senior Securities Average Market Value per Unit | [5],[6] |  |  |  |  |  |  | [1]
Common Shares [Member] |  |  |  |  |  |  |  |
Capital Stock, Long-Term Debt, and Other Securities [Abstract] |  |  |  |  |  |  |  |
Outstanding Security, Title [Text Block] |  |  |  |  |  |  | Common Shares |
Outstanding Security, Held [Shares] |  |  |  |  |  |  | 18,978 |
Preferred Shares [Member] |  |  |  |  |  |  |  |
Capital Stock, Long-Term Debt, and Other Securities [Abstract] |  |  |  |  |  |  |  |
Outstanding Securities [Table Text Block] |  |  |  |  |  |  | For the period ended June 30, 2023, the annualized dividend rates on the ARPS ranged from:
Fund Name |  |  |  |  | Shares Issued and Outstanding |  |  | High |  |  | Low |  |  | As of June 30, 2023 |
PIMCO Municipal Income Fund |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series A |  |  |  |  |  |  | 1,310 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series B |  |  |  |  |  |  | 1,367 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series C |  |  |  |  |  |  | 1,294 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series D |  |  |  |  |  |  | 1,388 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series E |  |  |  |  |  |  | 1,309 |  |  |  | 6.773% |  |  |  | 4.936% |  |  |  | 6.537% |
PIMCO Municipal Income Fund II |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series A |  |  |  |  |  |  | 2,279 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series B |  |  |  |  |  |  | 2,577 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series C |  |  |  |  |  |  | 2,422 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series D |  |  |  |  |  |  | 2,300 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series E |  |  |  |  |  |  | 2,353 |  |  |  | 6.773% |  |  |  | 4.936% |  |  |  | 6.537% |
PIMCO Municipal Income Fund III |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series A |  |  |  |  |  |  | 1,018 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series B |  |  |  |  |  |  | 1,190 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series C |  |  |  |  |  |  | 1,350 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series D |  |  |  |  |  |  | 1,334 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series E |  |  |  |  |  |  | 1,296 |  |  |  | 6.773% |  |  |  | 4.936% |  |  |  | 6.537% |
PIMCO California Municipal Income Fund |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series A |  |  |  |  |  |  | 1,575 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series B |  |  |  |  |  |  | 1,547 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series C |  |  |  |  |  |  | 1,703 |  |  |  | 6.773% |  |  |  | 4.936% |  |  |  | 6.537% |
PIMCO California Municipal Income Fund II |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series A |  |  |  |  |  |  | 1,154 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series B |  |  |  |  |  |  | 879 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series C |  |  |  |  |  |  | 1,235 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series D |  |  |  |  |  |  | 926 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series E |  |  |  |  |  |  | 953 |  |  |  | 6.773% |  |  |  | 4.936% |  |  |  | 6.537% |
PIMCO California Municipal Income Fund III |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series A |  |  |  |  |  |  | 1,920 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series B |  |  |  |  |  |  | 1,995 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
PIMCO New York Municipal Income Fund |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series A |  |  |  |  |  |  | 1,641 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
PIMCO New York Municipal Income Fund II |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series A |  |  |  |  |  |  | 1,178 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Series B |  |  |  |  |  |  | 1,142 |  |  |  | 6.773% |  |  |  | 4.936% |  |  |  | 6.537% |
PIMCO New York Municipal Income Fund III |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series A |  |  |  |  |  |  | 1,178 |  |  |  | 7.118% |  |  |  | 4.936% |  |  |  | 6.725% |
Preferred Shares [Member] | Series A [Member] |  |  |  |  |  |  |  |
Capital Stock, Long-Term Debt, and Other Securities [Abstract] |  |  |  |  |  |  |  |
Outstanding Security, Title [Text Block] |  |  |  |  |  |  | Series A |
Outstanding Security, Held [Shares] |  |  |  |  |  |  | 1,575 |
Preferred Shares [Member] | Series B [Member] |  |  |  |  |  |  |  |
Capital Stock, Long-Term Debt, and Other Securities [Abstract] |  |  |  |  |  |  |  |
Outstanding Security, Title [Text Block] |  |  |  |  |  |  | Series B |
Outstanding Security, Held [Shares] |  |  |  |  |  |  | 1,547 |
Preferred Shares [Member] | Series C [Member] |  |  |  |  |  |  |  |
Capital Stock, Long-Term Debt, and Other Securities [Abstract] |  |  |  |  |  |  |  |
Outstanding Security, Title [Text Block] |  |  |  |  |  |  | Series C |
Outstanding Security, Held [Shares] |  |  |  |  |  |  | 1,703 |
[1] | Unaudited
[2] | “Asset Coverage per Preferred Share” means the ratio that the value of the total assets of the Fund, less all liabilities and indebtedness not represented by ARPS or RVMTP, bears to the aggregate of the involuntary liquidation preference of ARPS or RVMTP, expressed as a dollar amount per ARPS or RVMTP.
[3] | “Involuntary Liquidating Preference” means the amount to which a holder of ARPS or RVMTP would be entitled upon the involuntary liquidation of the Fund in preference to the Common Shareholders, expressed as a dollar amount per Preferred Share.
[4] | The ARPS have no readily ascertainable market value. Auctions for the ARPS have failed since February 2008, there is currently no active trading market for the ARPS and the Fund is not able to reliably estimate what their value would be in a third-party market sale. The liquidation value of the ARPS represents its liquidation preference, which approximates fair value of the shares less any accumulated unpaid dividends. See Note 13, Preferred Shares, in the Notes to Financial Statements for more information.
[5] | Prior to July 14, 2021, RVMTP Shares were Variable Rate MuniFund Term Preferred Shares. See Note 13, Preferred Shares.
[6] | The RVMTP have no readily ascertainable market value. The liquidation value of the RVMTP represents its liquidation preference, which approximates fair value of the shares less any unamortized debt issuance costs. See Note 13, Preferred Shares, in the Notes to Financial Statements for more information.

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