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Consolidated Statements of Partners' Capital - USD ($) | Total | Tier 2 [Member] | Tier 3 [Member] | General Partner [Member] | General Partner [Member] Tier 2 [Member] | BUCs - Restricted and Unrestricted [Member] | BUCs - Restricted and Unrestricted [Member] Tier 2 [Member] | BUCs - Restricted and Unrestricted [Member] Tier 3 [Member] | Number of BUCs - Restricted and Unrestricted [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2021 | $ 372,412,027 |  |  | $ 765,550 |  | $ 371,646,477 |  |  |  | $ 114,040,260
Partners' Capital Account, Units at Dec. 31, 2021 |  |  |  |  |  |  |  |  | 22,846,803 |
Distributions paid or accrued: |  |  |  |  |  |  |  |  |  |
Regular distribution | (2,127,734) |  |  | (21,277) |  | (2,106,457) |  |  |  |
Distribution of income (Note 3) |  | $ (12,969,459) | $ (26,835,826) |  | $ (3,242,365) |  | $ (9,727,094) | $ (26,835,826) |  |
Cash paid in lieu of fractional BUCs | (2,506) |  |  |  |  | (2,506) |  |  |  |
Net income allocable to Partners | 62,695,541 |  |  | 3,471,267 |  | 59,224,274 |  |  |  |
Rounding of BUCs |  |  |  |  |  |  |  |  | 1,173 |
Restricted units awarded |  |  |  |  |  |  |  |  | 96,321 |
Restricted units forfeited |  |  |  |  |  |  |  |  | (5,437) |
Restricted unit compensation expense | 1,531,622 |  |  | 15,316 |  | 1,516,306 |  |  |  |
BUCs surrendered to pay tax withholding on vested restricted units | (456,127) |  |  |  |  | (456,127) |  |  |  |
BUCs surrendered to pay tax withholding on vested restricted units, Units |  |  |  |  |  |  |  |  | (22,540) |
Unrealized losses on securities | (69,426,546) |  |  | (694,265) |  | (68,732,281) |  |  |  | (69,426,546)
Unrealized gains (losses) on bond purchase commitments | (865,475) |  |  | (8,655) |  | (856,820) |  |  |  | (865,475)
Balance at Dec. 31, 2022 | 323,955,517 |  |  | 285,571 |  | 323,669,946 |  |  |  | 43,748,239
Partners' Capital Account, Units at Dec. 31, 2022 |  |  |  |  |  |  |  |  | 22,916,320 |
Cumulative effect of accounting change (Note 2) | (5,949,000) |  |  | (59,490) |  | (5,889,510) |  |  |  |
Distributions paid or accrued: |  |  |  |  |  |  |  |  |  |
Regular distribution | (20,210,697) |  |  | (202,107) |  | (20,008,590) |  |  |  |
Distribution of income (Note 3) |  | $ (12,992,591) | $ (4,020,578) |  | $ (3,248,148) |  | $ (9,744,443) | $ (4,020,578) |  |
Cash paid in lieu of fractional BUCs | (6,202) |  |  |  |  | (6,202) |  |  |  |
Net income allocable to Partners | 51,143,118 |  |  | 3,589,447 |  | 47,553,671 |  |  |  |
Rounding of BUCs |  |  |  |  |  |  |  |  | (376) |
Restricted units awarded |  |  |  |  |  |  |  |  | 105,274 |
Restricted unit compensation expense | 2,013,736 |  |  | 20,137 |  | 1,993,599 |  |  |  |
BUCs surrendered to pay tax withholding on vested restricted units | (483,255) |  |  |  |  | (483,255) |  |  |  |
BUCs surrendered to pay tax withholding on vested restricted units, Units |  |  |  |  |  |  |  |  | (28,431) |
Unrealized losses on securities | 15,757,801 |  |  | 157,578 |  | 15,600,223 |  |  |  | 15,757,801
Unrealized gains (losses) on bond purchase commitments | 98,859 |  |  | 989 |  | 97,870 |  |  |  | 98,859
Balance at Dec. 31, 2023 | $ 349,306,708 |  |  | $ 543,977 |  | $ 348,762,731 |  |  |  | $ 59,604,899
Partners' Capital Account, Units at Dec. 31, 2023 |  |  |  |  |  |  |  |  | 22,992,787 |

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