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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, 2020 | $ 359,772,042 |  |  | $ 934,892 |  | $ 358,837,150 |  |  |  | $ 132,594,007
Partners' Capital Account, Units at Dec. 31, 2020 |  |  |  |  |  |  |  |  | 20,700,399 |
Distributions paid or accrued: |  |  |  |  |  |  |  |  |  |
Regular distribution | (17,782,023) |  |  | (177,820) |  | (17,604,203) |  |  |  |
Distribution of income (Note 3) |  | $ (10,596,968) | $ (6,507,605) |  | $ (2,649,242) |  | $ (7,947,726) | $ (6,507,605) |  |
Net income allocable to Partners | 35,228,437 |  |  | 2,830,481 |  | 32,397,956 |  |  |  |
Sale of BUCs, net of issuance costs, Value | 31,239,495 |  |  |  |  | 31,239,495 |  |  |  |
Sale of BUCs, net of issuance costs, Units |  |  |  |  |  |  |  |  | 1,859,160 |
Repurchase of BUCs, Value | (1,363,736) |  |  |  |  | (1,363,736) |  |  |  |
Repurchase of BUCs, Units |  |  |  |  |  |  |  |  | (75,713) |
Restricted units awarded |  |  |  |  |  |  |  |  | 88,775 |
Restricted unit compensation expense | 1,277,694 |  |  | 12,777 |  | 1,264,917 |  |  |  |
BUCs surrendered to pay tax withholding on vested restricted units | (301,562) |  |  |  |  | (301,562) |  |  |  |
BUCs surrendered to pay tax withholding on vested restricted units, Units |  |  |  |  |  |  |  |  | (15,021) |
Unrealized loss on securities | (19,086,272) |  |  | (190,863) |  | (18,895,409) |  |  |  | (19,086,272)
Unrealized gain on bond purchase commitments | 532,525 |  |  | 5,325 |  | 527,200 |  |  |  | 532,525
Balance at Dec. 31, 2021 | 372,412,027 |  |  | 765,550 |  | 371,646,477 |  |  |  | 114,040,260
Partners' Capital Account, Units at Dec. 31, 2021 |  |  |  |  |  |  |  |  | 22,557,600 |
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 upon Reverse Unit Split |  |  |  |  |  |  |  |  | 1,160 |
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 |  |  |  |  |  |  |  |  | (23,281) |
Unrealized loss on securities | (69,426,546) |  |  | (694,265) |  | (68,732,281) |  |  |  | (69,426,546)
Unrealized gain 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 |  |  |  |  |  |  |  |  | 22,626,363 |

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