v3.26.1
Mortgage Revenue Bonds - Schedule of Investments in MRBs (Details) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 860,990,640 $ 971,133,524
Cumulative Unrealized Gain 31,360,761 39,188,805
Cumulative Unrealized Loss (2,658,499) (2,417,943)
Estimated Fair Value $ 889,692,902 $ 1,007,904,386
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
The Safford [Member] | Series A [Member] | AZ [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 43,026,991 [1] $ 43,039,213 [2]
Cumulative Unrealized Gain 587,812 [1] 825,255 [2]
Estimated Fair Value $ 43,614,803 [1] $ 43,864,468 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
40rty on Colony - Series P [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 5,959,805 [1] $ 5,960,299 [2]
Cumulative Unrealized Gain 437,932 [1] 508,166 [2]
Estimated Fair Value $ 6,397,737 [1] $ 6,468,465 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
CCBA Senior Garden Apartments [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 3,671,482 [3],[4] $ 3,681,447 [5]
Cumulative Unrealized Gain [5]   36,906
Cumulative Unrealized Loss [3],[4] (60,381)  
Estimated Fair Value $ 3,611,101 [3],[4] $ 3,718,353 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Courtyard [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 9,528,788 [6] $ 9,557,426 [7]
Cumulative Unrealized Gain 464,029 [6] 582,658 [7]
Estimated Fair Value $ 9,992,817 [6] $ 10,140,084 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Glenview Apartments [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 4,162,903 [8] $ 4,180,438 [9]
Cumulative Unrealized Gain 154,519 [8] 172,492 [9]
Estimated Fair Value $ 4,317,422 [8] $ 4,352,930 [9]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Harmony Court Bakersfield [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 3,474,329 [6] $ 3,484,770 [7]
Cumulative Unrealized Gain 154,449 [6] 196,775 [7]
Estimated Fair Value $ 3,628,778 [6] $ 3,681,545 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Harmony Terrace [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 6,433,507 [6] $ 6,452,743 [7]
Cumulative Unrealized Gain 300,810 [6] 382,696 [7]
Estimated Fair Value $ 6,734,317 [6] $ 6,835,439 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Harden Ranch [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 6,123,551 [3] $ 6,150,834 [5]
Cumulative Unrealized Gain 141,258 [3] 174,042 [5]
Estimated Fair Value $ 6,264,809 [3] $ 6,324,876 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Las Palmas II [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 1,575,621 [6] $ 1,580,405 [7]
Cumulative Unrealized Gain 69,737 [6] 88,460 [7]
Estimated Fair Value $ 1,645,358 [6] $ 1,668,865 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Montclair Apartments [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 2,255,277 [8] $ 2,264,777 [9]
Cumulative Unrealized Gain 80,043 [8] 87,128 [9]
Estimated Fair Value $ 2,335,320 [8] $ 2,351,905 [9]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Montecito at Williams Ranch Apartments [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 7,283,261 [3] $ 7,301,933 [5]
Cumulative Unrealized Gain 246,474 [3] 502,273 [5]
Estimated Fair Value $ 7,529,735 [3] $ 7,804,206 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Montevista [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 6,488,747 [3] $ 6,502,767 [5]
Cumulative Unrealized Gain 562,376 [3] 701,929 [5]
Estimated Fair Value $ 7,051,123 [3] $ 7,204,696 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Ocotillo Springs [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 3,411,214 [3],[10] $ 3,420,248 [5],[11]
Cumulative Unrealized Loss (210,024) [3],[10] (122,272) [5],[11]
Estimated Fair Value $ 3,201,190 [3],[10] $ 3,297,976 [5],[11]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Ocotillo Springs [Member] | Series A-1 [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 492,631 [3] $ 493,399 [5]
Cumulative Unrealized Gain 59,423 [3] 75,177 [5]
Estimated Fair Value $ 552,054 [3] $ 568,576 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Residency at Empire - Series BB-1 [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 14,092,740 [1] $ 14,093,724 [2]
Cumulative Unrealized Gain 551,459 [1] 649,973 [2]
Estimated Fair Value $ 14,644,199 [1] $ 14,743,697 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Residency at Empire - Series BB-2 [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 4,000,000 [1] $ 4,000,000 [2]
Cumulative Unrealized Gain 184,057 [1] 212,485 [2]
Estimated Fair Value $ 4,184,057 [1] $ 4,212,485 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Residency at Empire - Series BB-3 [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 14,000,000 [1] $ 14,000,000 [2]
Cumulative Unrealized Gain 504,352 [1] 565,690 [2]
Estimated Fair Value $ 14,504,352 [1] $ 14,565,690 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Residency at Empire - Series BB-4 [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 47,000,000 [1] $ 47,000,000 [2]
Cumulative Unrealized Gain 145,187 [1] 356,007 [2]
Estimated Fair Value $ 47,145,187 [1] $ 47,356,007 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Residency at the Entrepreneur - Series J-1 [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 9,072,827 [1],[10] $ 9,073,723 [2],[11]
Cumulative Unrealized Loss (312,670) [1],[10] (65,074) [2],[11]
Estimated Fair Value $ 8,760,157 [1],[10] $ 9,008,649 [2],[11]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Residency at the Entrepreneur - Series J-2 [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 7,500,000 [1],[4] $ 7,500,000 [2]
Cumulative Unrealized Gain [2]   7,207
Cumulative Unrealized Loss [1],[4] (199,869)  
Estimated Fair Value $ 7,300,131 [1],[4] $ 7,507,207 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Residency at the Entrepreneur - Series J-3 [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 26,080,000 [1],[4] $ 26,080,000 [2]
Cumulative Unrealized Gain [2]   411,110
Cumulative Unrealized Loss [1],[4] (247,686)  
Estimated Fair Value $ 25,832,314 [1],[4] $ 26,491,110 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Residency at the Entrepreneur - Series J-4 [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 16,420,000 [1] $ 16,420,000 [2]
Estimated Fair Value $ 16,420,000 [1] $ 16,420,000 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Residency at the Entrepreneur - Series J-5 [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 5,000,000 [1] $ 5,000,000 [2]
Estimated Fair Value $ 5,000,000 [1] $ 5,000,000 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Residency at the Mayer [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 16,752,582 [1] $ 16,753,398 [2]
Cumulative Unrealized Gain 1,843,933 [1] 2,357,236 [2]
Estimated Fair Value $ 18,596,515 [1] $ 19,110,634 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Residency at the Mayer [Member] | Series M [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances [2]   $ 11,500,000
Estimated Fair Value [2]   $ 11,500,000
Residency at the Mayer [Member] | Series KK Mortgage [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances [1] $ 11,500,000  
Estimated Fair Value [1] $ 11,500,000  
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
San Vicente [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 3,248,846 [6] $ 3,258,711 [7]
Cumulative Unrealized Gain 143,793 [6] 182,399 [7]
Estimated Fair Value $ 3,392,639 [6] $ 3,441,110 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Santa Fe Apartments [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 2,732,183 [8] $ 2,743,692 [9]
Cumulative Unrealized Gain 92,532 [8] 105,552 [9]
Estimated Fair Value $ 2,824,715 [8] $ 2,849,244 [9]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Seasons at Simi Valley [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 3,949,423 [6] $ 3,965,162 [7]
Cumulative Unrealized Gain 254,198 [6] 286,086 [7]
Estimated Fair Value $ 4,203,621 [6] $ 4,251,248 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Seasons Lakewood [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 6,853,084 [6] $ 6,873,574 [7]
Cumulative Unrealized Gain 320,429 [6] 407,654 [7]
Estimated Fair Value $ 7,173,513 [6] $ 7,281,228 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Seasons San Juan Capistrano [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 11,538,355 [6] $ 11,572,853 [7]
Cumulative Unrealized Gain 539,497 [6] 686,356 [7]
Estimated Fair Value $ 12,077,852 [6] $ 12,259,209 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Solano Vista [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 2,564,400 [3] $ 2,569,997 [5]
Cumulative Unrealized Gain [5]   254,394
Cumulative Unrealized Loss [3] (11,628)  
Estimated Fair Value $ 2,552,772 [3] $ 2,824,391 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Summerhill [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 5,982,738 [6] $ 6,000,718 [7]
Cumulative Unrealized Gain 178,006 [6] 245,404 [7]
Estimated Fair Value $ 6,160,744 [6] $ 6,246,122 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Sycamore Walk [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 3,263,042 [6] $ 3,276,834 [7]
Cumulative Unrealized Gain 152,050 [6] 186,786 [7]
Estimated Fair Value $ 3,415,092 [6] $ 3,463,620 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
The Village at Madera [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 2,873,540 [6] $ 2,882,176 [7]
Cumulative Unrealized Gain 127,742 [6] 162,749 [7]
Estimated Fair Value $ 3,001,282 [6] $ 3,044,925 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Tyler Park Townhomes [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 5,328,848 [3] $ 5,352,891 [5]
Estimated Fair Value $ 5,328,848 [3] $ 5,352,891 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Village at Hanford Square [Member] | Series H [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 10,400,000 [1] $ 10,400,000 [2]
Cumulative Unrealized Gain 617,514 [1] 729,339 [2]
Estimated Fair Value $ 11,017,514 [1] $ 11,129,339 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Vineyard Gardens [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 3,793,397 [3] $ 3,802,965 [5]
Cumulative Unrealized Gain 271,889 [3] 338,419 [5]
Estimated Fair Value $ 4,065,286 [3] $ 4,141,384 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Wellspring Apartments [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 3,728,854 [3] $ 3,759,908 [5]
Cumulative Unrealized Gain 200,064 [3] 291,715 [5]
Estimated Fair Value $ 3,928,918 [3] $ 4,051,623 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Westside Village Market [Member] | Series A [Member] | CA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 3,482,393 [3] $ 3,498,104 [5]
Cumulative Unrealized Gain 134,786 [3] 153,938 [5]
Estimated Fair Value $ 3,617,179 [3] $ 3,652,042 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Handsel Morgan Village Apartments [Member] | GA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 2,150,000 [1] $ 2,150,000 [2]
Cumulative Unrealized Gain 344,638 [1] 374,482 [2]
Estimated Fair Value $ 2,494,638 [1] $ 2,524,482 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
MaryAlice Circle Apartments [Member] | GA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 5,900,000 [1] $ 5,900,000 [2]
Cumulative Unrealized Gain 491,942 [1] 654,257 [2]
Estimated Fair Value $ 6,391,942 [1] $ 6,554,257 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Renaissance [Member] | Series A [Member] | LA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 10,042,349 [8] $ 10,087,972 [9]
Cumulative Unrealized Gain 128,524 [8] 360,474 [9]
Estimated Fair Value $ 10,170,873 [8] $ 10,448,446 [9]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Live 929 Apartments [Member] | Series 2022A [Member] | MD [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 58,490,642 [1] $ 58,452,715 [2]
Cumulative Unrealized Gain 5,199,845 [1] 5,193,310 [2]
Estimated Fair Value $ 63,690,487 [1] $ 63,646,025 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Woodington Gardens Apartments [Member] | Series A-1 [Member] | MD [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 31,150,000 [1] $ 31,150,000 [2]
Cumulative Unrealized Gain 2,699,090 [1] 2,971,637 [2]
Estimated Fair Value $ 33,849,090 [1] $ 34,121,637 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Meadow Valley [Member] | MI [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 43,325,007 [1],[12] $ 43,329,595 [2],[13]
Cumulative Unrealized Loss (471,873) [1],[12] (493,593) [2],[13]
Estimated Fair Value $ 42,853,134 [1],[12] $ 42,836,002 [2],[13]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Jackson Manor Apartments [member] | MS [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 4,724,199 [3],[4] $ 4,735,841 [5]
Cumulative Unrealized Gain 19,908 [3],[4] 6,789 [5]
Estimated Fair Value $ 4,744,107 [3],[4] $ 4,742,630 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Village Point [Member] | NJ [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 22,910,000 [10],[14] $ 22,937,000 [15],[16]
Cumulative Unrealized Gain [10],[14] 0  
Cumulative Unrealized Loss (842,782) [1],[12] (885,455) [15],[16]
Estimated Fair Value $ 22,067,218 [10],[14] $ 22,051,545 [15],[16]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Silver Moon [Member] | Series A [Member] | NM [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 7,289,747 [8] $ 7,312,227 [9]
Cumulative Unrealized Gain 943,076 [8] 1,073,556 [9]
Estimated Fair Value $ 8,232,823 [8] $ 8,385,783 [9]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Village at Avalon [Member] | NM [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 15,475,842 [3] $ 15,514,941 [5]
Cumulative Unrealized Gain 1,228,203 [3] 1,521,472 [5]
Estimated Fair Value $ 16,704,045 [3] $ 17,036,413 [5]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Columbia Gardens [Member] | SC [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 11,884,712 [6] $ 11,939,032 [7]
Cumulative Unrealized Gain 403,622 [6] 460,705 [7]
Estimated Fair Value $ 12,288,334 [6] $ 12,399,737 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
The Lvy Apartments a/k/a Century Plaza Apartments [Member] | SC [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances [2],[15]   $ 30,548,389
Cumulative Unrealized Loss [2],[15]   (769,606)
Estimated Fair Value [2],[15]   29,778,783
The Park at Sondrio [Member] | Series 2022A [Member] | SC [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances [2]   33,621,006
Estimated Fair Value [2]   33,621,006
The Park at Vietti [Member] | Series 2022A [Member] | SC [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances [2]   23,927,167
Estimated Fair Value [2]   23,927,167
Village at River's Edge [Member] | SC [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 9,358,796 [6] 9,383,233 [7]
Cumulative Unrealized Gain 653,977 [6] 818,618 [7]
Estimated Fair Value $ 10,012,773 [6] $ 10,201,851 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Willow Run [Member] | SC [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 11,719,629 [6] $ 11,772,937 [7]
Cumulative Unrealized Gain 397,661 [6] 453,899 [7]
Estimated Fair Value $ 12,117,290 [6] $ 12,226,836 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Windsor Shores Apartments [Member] | Series A [Member] | SC [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances [2]   $ 20,641,927
Estimated Fair Value [2]   20,641,927
Agape Helotes [Member] | Series A-1 [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 5,553,135 [1] 5,551,146 [2]
Cumulative Unrealized Gain 942,184 [1] 1,094,713 [2]
Estimated Fair Value $ 6,495,319 [1] $ 6,645,859 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Agape Helotes [Member] | Series B [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 7,775,069 [1],[4] $ 7,623,744 [2]
Cumulative Unrealized Gain [2]   647,350
Cumulative Unrealized Loss [1],[4] (37,066)  
Estimated Fair Value $ 7,738,003 [1],[4] $ 8,271,094 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar at Copperfield [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 12,997,204 [1] $ 13,042,027 [2]
Cumulative Unrealized Gain 526,449 [1] 596,361 [2]
Estimated Fair Value $ 13,523,653 [1] $ 13,638,388 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar at the Crest [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 8,431,441 [1] $ 8,470,504 [2]
Cumulative Unrealized Gain 463,281 [1] 517,602 [2]
Estimated Fair Value $ 8,894,722 [1] $ 8,988,106 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar at the Crest [Member] | Series B [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 701,611 $ 703,640
Cumulative Unrealized Gain 27,380 27,212
Estimated Fair Value $ 728,991 $ 730,852
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar at the Oaks [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 6,832,018 [1],[4] $ 6,862,655 [2]
Cumulative Unrealized Gain [2]   8,054
Cumulative Unrealized Loss [1],[4] (43,395)  
Estimated Fair Value $ 6,788,623 [1],[4] $ 6,870,709 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar at the Oaks [Member] | Series B [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 514,561 [4],[12] $ 515,988 [15]
Cumulative Unrealized Loss (11,981) [4],[12] (8,786) [15]
Estimated Fair Value $ 502,580 [4],[12] $ 507,202 [15]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar at the Parkway [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 11,875,653 [8] $ 11,922,214 [9]
Cumulative Unrealized Gain 93,694 [8] 330,959 [9]
Estimated Fair Value $ 11,969,347 [8] $ 12,253,173 [9]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar at the Parkway [Member] | Series B [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 121,399 $ 121,562
Cumulative Unrealized Gain 6,420 10,103
Estimated Fair Value $ 127,819 $ 131,665
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar at Wilcrest [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 4,925,677 [1],[4] $ 4,942,664 [2]
Cumulative Unrealized Gain [2]   6,128
Cumulative Unrealized Loss [1],[4] (3,678)  
Estimated Fair Value $ 4,921,999 [1],[4] $ 4,948,792 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar at Wood Hollow [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 37,400,553 [1] $ 37,529,536 [2]
Cumulative Unrealized Gain 992,980 [1] 1,488,820 [2]
Estimated Fair Value $ 38,393,533 [1] $ 39,018,356 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar in 09 [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 5,899,178 [1],[4] $ 5,925,632 [2]
Cumulative Unrealized Gain [2]   298,778
Cumulative Unrealized Loss [1],[4] (26,766)  
Estimated Fair Value $ 5,872,412 [1],[4] $ 6,224,410 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar in 09 [Member] | Series B [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 424,466 [4] $ 425,643
Cumulative Unrealized Gain   2,774
Cumulative Unrealized Loss [4] (9,163)  
Estimated Fair Value $ 415,303 [4] $ 428,417
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar on the Boulevard [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 14,363,877 [1] $ 14,430,424 [2]
Cumulative Unrealized Gain 687,423 [1] 827,399 [2]
Estimated Fair Value $ 15,051,300 [1] $ 15,257,823 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar on the Boulevard [Member] | Series B [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 416,899 $ 418,105
Cumulative Unrealized Gain 12,787 17,648
Estimated Fair Value $ 429,686 $ 435,753
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Avistar on the Hills [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 4,677,351 [1] $ 4,698,326 [2]
Cumulative Unrealized Gain 125,782 [1] 236,896 [2]
Estimated Fair Value $ 4,803,133 [1] $ 4,935,222 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Bruton Apartments [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 16,822,395 [6] $ 16,869,420 [7]
Estimated Fair Value $ 16,822,395 [6] $ 16,869,420 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Concord at Gulfgate [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 17,659,167 [6] $ 17,721,824 [7]
Cumulative Unrealized Gain 873,782 [6] 1,061,872 [7]
Estimated Fair Value $ 18,532,949 [6] $ 18,783,696 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Concord at Little York [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 12,371,082 [6] $ 12,414,976 [7]
Cumulative Unrealized Gain 44,512 [6] 281,448 [7]
Estimated Fair Value $ 12,415,594 [6] $ 12,696,424 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Concord at Williamcrest [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 19,164,131 [6] $ 19,232,128 [7]
Cumulative Unrealized Gain 912,222 [6] 1,190,877 [7]
Estimated Fair Value $ 20,076,353 [6] $ 20,423,005 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Crossing at 1415 [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 6,864,198 [6] $ 6,889,954 [7]
Cumulative Unrealized Gain 223,852 [6] 59,727 [7]
Estimated Fair Value $ 7,088,050 [6] $ 6,949,681 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Decatur-Angle [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 21,100,669 [6] $ 21,164,887 [7]
Estimated Fair Value $ 21,100,669 [6] $ 21,164,887 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bond [Member] Mortgage Revenue Bond [Member]
Esperanza at Palo Alto [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 18,343,682 [6] $ 18,391,634 [7]
Cumulative Unrealized Gain 1,178,955 [6] 1,199,900 [7]
Estimated Fair Value $ 19,522,637 [6] $ 19,591,534 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bonds [Member] Mortgage Revenue Bonds [Member]
Heights at 515 [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 6,284,292 [6] $ 6,307,872 [7]
Cumulative Unrealized Gain 215,133 [6] 129,093 [7]
Estimated Fair Value $ 6,499,425 [6] $ 6,436,965 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bonds [Member] Mortgage Revenue Bonds [Member]
Heritage Square [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 9,842,019 [8] $ 9,882,614 [9]
Cumulative Unrealized Gain 71,731 [8] 78,097 [9]
Estimated Fair Value $ 9,913,750 [8] $ 9,960,711 [9]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bonds [Member] Mortgage Revenue Bonds [Member]
Oaks at Georgetown [Member] | Series A [Member] | TX [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 11,496,398 [4],[6] $ 11,530,770 [7],[15]
Cumulative Unrealized Loss (169,537) [4],[6] (73,157) [7],[15]
Estimated Fair Value $ 11,326,861 [4],[6] $ 11,457,613 [7],[15]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bonds [Member] Mortgage Revenue Bonds [Member]
15 West Apartments [Member] | WA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 9,166,233 [6] $ 9,190,524 [7]
Cumulative Unrealized Gain 947,666 [6] 1,121,776 [7]
Estimated Fair Value $ 10,113,899 [6] $ 10,312,300 [7]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bonds [Member] Mortgage Revenue Bonds [Member]
Aventine Apartments [Member] | WA [Member]    
Schedule Of Available For Sale Securities [Line Items]    
Cost Adjusted for Paydowns and Allowances $ 9,500,000 [1] $ 9,500,000 [2]
Cumulative Unrealized Gain 983,692 [1] 1,141,563 [2]
Estimated Fair Value $ 10,483,692 [1] $ 10,641,563 [2]
Investment, Type [Extensible Enumeration] Mortgage Revenue Bonds [Member] Mortgage Revenue Bonds [Member]
[1] MRB held by Mizuho in a debt financing transaction, Note 13.
[2] MRB held by Mizuho in a debt financing transaction, Note 13.
[3] 2024 PFA Securitization Bond associated with the 2024 PFA Securitization Transaction, Note 13.
[4] As of the date presented, the Partnership determined that the unrealized loss on the MRB is a result of increasing market interest rates from the date of acquisition and is not considered a credit loss. As of March 31, 2026, the MRB has been in an unrealized loss position for less than 12 months.
[5] 2024 PFA Securitization Bond associated with the 2024 PFA Securitization Transaction, Note 13.
[6] MRB owned by ATAX TEBS IV, LLC (M45 TEBS Financing), Note 13. The TEBS financing has contractual limitations on the Partnership’s ability to sell the MRB.
[7] MRB owned by ATAX TEBS IV, LLC (M45 TEBS Financing), Note 13. The TEBS financing has contractual limitations on the Partnership’s ability to sell the MRB.
[8] MRB owned by ATAX TEBS III, LLC (M33 TEBS Financing), Note 13. The TEBS financing has contractual limitations on the Partnership’s ability to sell the MRB.
[9] MRB owned by ATAX TEBS III, LLC (M33 TEBS Financing), Note 13. The TEBS financing has contractual limitations on the Partnership’s ability to sell the MRB.
[10] As of the date presented, the Partnership determined that the unrealized loss on the MRB is a result of increasing market interest rates from the date of acquisition and is not considered a credit loss. As of March 31, 2026, the MRB has been in an unrealized loss position for at least 12 months.
[11] As of the date presented, the Partnership determined that the unrealized loss on the MRB is a result of increasing market interest rates from the date of acquisition and is not considered a credit loss. As of December 31, 2025, the MRB has been in an unrealized loss position for at least 12 months.
[12] The Partnership has a remaining MRB funding commitment of approximately $750,000 as of March 31, 2026. The MRB and the unfunded MRB commitment are accounted for as available-for-sale securities and reported at fair value. The reported unrealized loss includes the unrealized loss on the current MRB carrying value (based on current fair value) as well as the unrealized loss on the Partnership’s remaining funding commitment outstanding as of March 31, 2026 (also based on current fair value). The Partnership determined the unrealized loss is a result of increasing market interest rates and that the cumulative unrealized loss is not considered a credit loss. As of March 31, 2026, the MRB has been in an unrealized loss position for more than 12 months.
[13] The Partnership has a remaining MRB funding commitment of approximately $750,000 as of December 31, 2025. The MRB and the unfunded MRB commitment are accounted for as available-for-sale securities and reported at fair value. The reported unrealized loss includes the unrealized loss on the current MRB carrying value (based on current fair value) as well as the unrealized loss on the Partnership’s remaining funding commitment outstanding as of December 31, 2025 (also based on current fair value). The Partnership determined the unrealized loss is a result of increasing market interest rates and that the cumulative unrealized loss is not considered a credit loss. As of December 31, 2025, the MRB has been in an unrealized loss position for more than 12 months.
[14] MRB held by Barclays in a debt financing transaction, Note 13.
[15] As of the date presented, the Partnership determined that the unrealized loss on the MRB is a result of increasing market interest rates from the date of acquisition and is not considered a credit loss. As of December 31, 2025, the MRB has been in an unrealized loss position for less than 12 months.
[16] MRB held by Barclays in a debt financing transaction, Note 13.