Investments in Debt and Equity Instruments, Cash and Cash Equivalents, Unrealized and Realized Gains (Losses) [Text Block] | 5. Investments in Mortgage Revenue Bonds Mortgage revenue bonds owned by the Partnership have been issued to provide construction and/or permanent financing for Residential Properties and commercial properties. Mortgage revenue bonds are either held directly by the Partnership or are held in trusts created in connection with debt financing transactions (Note 16). The Partnership had the following investments in mortgage revenue bonds on June 30, 2016 and December 31, 2015: June 30, 2016 Description of Mortgage Revenue Bonds Held in Trust State Cost Adjusted for Paydowns Unrealized Gain Unrealized Loss Estimated Fair Value Glenview Apartments - Series A (4) CA $ 4,670,000 $ 498,774 $ - $ 5,168,774 Harden Ranch - Series A (3) CA 6,944,405 1,227,246 - 8,171,651 Montclair Apartments - Series A (4) CA 2,530,000 340,097 - 2,870,097 Santa Fe Apartments - Series A (4) CA 3,065,000 464,138 - 3,529,138 Tyler Park Townhomes - Series A (3) CA 6,052,204 561,638 - 6,613,842 Westside Village Market - Series A (3) CA 3,955,103 386,514 - 4,341,617 Lake Forest (1) FL 8,705,000 2,042,441 - 10,747,441 Ashley Square (1) IA 5,069,000 862,753 - 5,931,753 Brookstone (1) IL 7,466,415 2,847,137 - 10,313,552 Copper Gate Apartments (3) IN 5,185,000 1,294,228 - 6,479,228 Renaissance - Series A (4) LA 11,400,429 2,830,779 - 14,231,208 Live 929 Apartments (2) MD 40,734,483 12,548,602 - 53,283,085 Woodlynn Village (1) MN 4,331,000 1,275,826 - 5,606,826 Greens Property - Series A (3) NC 8,252,000 2,364,424 - 10,616,424 Silver Moon - Series A (4) NM 7,958,913 1,826,837 - 9,785,750 Ohio Properties - Series A (1) OH 14,263,000 5,014,838 - 19,277,838 Bridle Ridge (1) SC 7,565,000 2,236,819 - 9,801,819 Columbia Gardens (2) SC 15,219,410 1,139,508 - 16,358,918 Cross Creek (1) SC 6,112,742 4,064,771 - 10,177,513 The Palms at Premier Park Apartments (3) SC 19,915,355 5,290,046 - 25,205,401 Willow Run (2) SC 15,219,338 1,122,876 - 16,342,214 Arbors at Hickory Ridge (3) TN 11,518,875 3,126,099 - 14,644,974 Pro Nova 2014-1 (2) TN 10,043,442 1,781,758 - 11,825,200 Avistar at Chase Hill - Series A (3) TX 9,890,950 2,283,756 - 12,174,706 Avistar at the Crest - Series A (3) TX 9,594,222 2,447,726 - 12,041,948 Avistar at the Oaks - Series A (3) TX 7,744,004 1,929,740 - 9,673,744 Avistar at the Parkway - Series A (4) TX 13,300,000 2,064,647 - 15,364,647 Avistar in 09 - Series A (3) TX 6,686,648 1,666,255 - 8,352,903 Avistar on the Boulevard - Series A (3) TX 16,344,793 4,169,968 - 20,514,761 Avistar on the Hills - Series A (3) TX 5,350,313 1,377,357 - 6,727,670 Bella Vista (1) TX 6,365,000 1,837,512 - 8,202,512 Bruton Apartments (2) TX 18,145,000 3,625,651 - 21,770,651 Concord at Gulfgate - Series A (2) TX 17,060,000 3,166,706 - 20,226,706 Concord at Little York - Series A (2) TX 12,480,000 2,316,547 - 14,796,547 Concord at Williamcrest - Series A (2) TX 18,020,000 3,668,443 - 21,688,443 Decatur Angle (2) TX 23,000,000 3,680,548 - 26,680,548 Heritage Square - Series A (4) TX 11,185,000 2,762,703 - 13,947,703 Runnymede (1) TX 10,300,000 2,364,880 - 12,664,880 Southpark (1) TX 11,838,368 6,538,686 - 18,377,054 Vantage at Harlingen - Series B (4) TX 24,575,000 5,261,111 - 29,836,111 Vantage at Judson -Series B (4) TX 26,457,837 6,468,281 - 32,926,118 Mortgage revenue bonds held in trust $ 474,513,249 $ 112,778,666 $ - $ 587,291,915 (1) Mortgage revenue bonds owned by ATAX TEBS I, LLC, Note 16 (2) Mortgage revenue bonds held by Deutsche Bank in a secured financing transaction, Note 16 (3) Mortgage revenue bonds owned by ATAX TEBS II, LLC, Note 16 (4) Mortgage revenue bonds owned by ATAX TEBS III, LLC, Note 16 June 30, 2016 Description of Mortgage Revenue Bonds held by the Partnership State Cost Adjusted for Paydowns Unrealized Gain Unrealized Loss Estimated Fair Value Seasons at Simi Valley CA $ 6,320,000 $ 880,895 $ - $ 7,200,895 Sycamore Walk CA 5,447,000 411,805 - 5,858,805 Greens Property - Series B NC 941,887 245,283 - 1,187,170 Ohio Properties - Series B OH 3,556,140 965,230 - 4,521,370 Companion at Thornhill Apartments SC 11,500,000 3,005,857 - 14,505,857 Avistar at Chase Hill - Series B TX 959,853 208,115 - 1,167,968 Avistar at the Crest - Series B TX 754,952 173,648 - 928,600 Avistar at the Oaks - Series B TX 552,067 127,771 - 679,838 Avistar at the Parkway - Series B TX 125,000 8,892 - 133,892 Avistar in 09 - Series B TX 455,406 105,399 - 560,805 Avistar on the Boulevard - Series B TX 448,594 103,183 - 551,777 Concord at Gulfgate - Series B TX 2,125,000 276,129 - 2,401,129 Concord at Little York - Series B TX 960,000 124,741 - 1,084,741 Concord at Williamcrest - Series B TX 2,800,000 363,838 - 3,163,838 Crossing at 1415 TX 7,925,000 1,227,108 - 9,152,108 Heights at 515 TX 6,945,000 1,061,664 - 8,006,664 Mortgage revenue bonds held by the Partnership $ 51,815,899 $ 9,289,558 $ - $ 61,105,457 December 31, 2015 Description of Mortgage Revenue Bonds Held in Trust State Cost Unrealized Unrealized Estimated Glenview Apartments - Series A (4) CA $ 4,670,000 $ 210,572 $ - $ 4,880,572 Harden Ranch - Series A (3) CA 6,960,000 668,981 - 7,628,981 Montclair Apartments - Series A (4) CA 2,530,000 114,079 - 2,644,079 Santa Fe Apartments - Series A (4) CA 3,065,000 154,067 - 3,219,067 Tyler Park Townhomes - Series A (3) CA 6,075,000 487,209 - 6,562,209 Westside Village Market - Series A (3) CA 3,970,000 202,340 - 4,172,340 Lake Forest (1) FL 8,766,000 1,177,745 - 9,943,745 Ashley Square (1) IA 5,099,000 508,163 - 5,607,163 Brookstone (1) IL 7,468,668 1,436,203 - 8,904,871 Copper Gate Apartments (3) IN 5,185,000 616,341 - 5,801,341 Renaissance - Series A (4) LA 11,450,959 1,233,077 - 12,684,036 Live 929 Apartments (2) MD 40,801,557 5,829,855 - 46,631,412 Woodlynn Village (1) MN 4,351,000 466,471 - 4,817,471 Greens Property - Series A (3) NC 8,294,000 1,138,270 - 9,432,270 Silver Moon - Series A (4) NM 7,983,811 1,246,349 - 9,230,160 Ohio Properties - Series A (1) OH 14,311,000 2,690,867 - 17,001,867 Bridle Ridge (1) SC 7,595,000 817,222 - 8,412,222 Columbia Gardens (2) SC 15,224,597 - - 15,224,597 Cross Creek (1) SC 6,101,605 2,932,689 - 9,034,294 The Palms at Premier Park Apartments (3) SC 20,001,272 2,505,091 - 22,506,363 Willow Run (2) SC 15,224,591 - - 15,224,591 Arbors at Hickory Ridge (3) TN 11,565,657 1,767,508 - 13,333,165 Pro Nova 2014-1 and 2014-2 (2) TN 19,379,489 1,182,900 - 20,562,389 Avistar at Chase Hill - Series A (3) TX 9,935,552 1,133,024 - 11,068,576 Avistar at the Crest - Series A (3) TX 9,637,485 1,301,224 - 10,938,709 Avistar at the Oaks - Series A (3) TX 7,777,936 840,159 - 8,618,095 Avistar at the Parkway - Series A (4) TX 13,300,000 330,251 - 13,630,251 Avistar in 09 - Series A (3) TX 6,715,948 725,445 - 7,441,393 Avistar on the Boulevard - Series A (3) TX 16,418,497 1,872,323 - 18,290,820 Avistar on the Hills - Series A (3) TX 5,373,756 693,096 - 6,066,852 Bella Vista (1) TX 6,430,000 766,135 - 7,196,135 Bruton Apartments (2) TX 18,145,000 1,901,839 - 20,046,839 Concord at Gulfgate - Series A (2) TX 17,060,000 852,612 - 17,912,612 Concord at Little York - Series A (2) TX 12,480,000 688,441 - 13,168,441 Concord at Williamcrest - Series A (2) TX 18,020,000 1,182,543 - 19,202,543 Decatur Angle (2) TX 23,000,000 1,582,083 - 24,582,083 Heritage Square - Series A (4) TX 11,185,000 273,488 - 11,458,488 Runnymede (1) TX 10,350,000 1,600,938 - 11,950,938 Southpark (1) TX 11,799,874 3,990,882 - 15,790,756 Vantage at Harlingen - Series B (4) TX 24,575,000 1,765,139 - 26,340,139 Vantage at Judson -Series B (4) TX 26,540,000 2,613,606 - 29,153,606 Mortgage revenue bonds held in trust $ 484,817,254 $ 51,499,227 $ - $ 536,316,481 (1) Mortgage revenue bonds owned by ATAX TEBS I, LLC, Note 16 (2) Mortgage revenue bonds held by Deutsche Bank in a secured financing transaction, Note 16 (3) Mortgage revenue bonds owned by ATAX TEBS II, LLC, Note 16 (4) Mortgage revenue bonds owned by ATAX TEBS III, LLC, Note 16 December 31, 2015 Description of Mortgage Revenue Bonds held by the Partnership State Cost Adjusted for Paydowns Unrealized Gain Unrealized Loss Estimated Fair Value Glenview Apartments - Series B CA $ 2,053,000 $ - $ (7,329 ) $ 2,045,671 Montclair Apartments - Series B CA 928,000 - (2,506 ) 925,494 Santa Fe Apartments - Series B CA 1,671,000 - (5,965 ) 1,665,035 Seasons at Simi Valley CA 6,320,000 404,110 - 6,724,110 Sycamore Walk CA 5,447,000 - - 5,447,000 Greens Property - Series B NC 943,214 142,442 - 1,085,656 Ohio Properties - Series B OH 3,562,190 514,997 - 4,077,187 Avistar at Chase Hill - Series B TX 961,981 109,878 - 1,071,859 Avistar at the Crest - Series B TX 756,626 86,428 - 843,054 Avistar at the Oaks - Series B TX 553,244 63,533 - 616,777 Avistar at the Parkway - Series B TX 125,000 - (979 ) 124,021 Avistar in 09 - Series B TX 456,376 52,409 - 508,785 Avistar on the Boulevard - Series B TX 449,589 51,356 - 500,945 Concord at Gulfgate - Series B TX 2,125,000 76,802 - 2,201,802 Concord at Little York - Series B TX 960,000 - (6,711 ) 953,289 Concord at Williamcrest - Series B TX 2,800,000 - (19,573 ) 2,780,427 Crossing at 1415 TX 7,925,000 214,091 - 8,139,091 Heights at 515 TX 6,945,000 185,268 - 7,130,268 Heritage Square - Series B TX 520,000 6,185 - 526,185 Mortgage revenue bonds held by the Partnership $ 45,502,220 $ 1,907,499 $ (43,063 ) $ 47,366,656 In May 2016, the Partnership redeemed the following Series B mortgage revenue bonds for approximately $5.2 million which approximated their carrying value plus accrued interest. Property Name Month Redeemed Location Units Maturity Date Base Interest Rate Principal Outstanding at Date of Redemption Glenview Apartments - Series B May Cameron, CA 88 12/1/2016 8.00 % $ 2,053,000 Montclair Apartments - Series B May Lemoore, CA 80 12/1/2016 8.00 % $ 928,000 Santa Fe Apartments - Series B May Hesperia, CA 89 12/1/2016 8.00 % $ 1,671,000 Heritage Square - Series B May Edinburg, TX 204 10/1/2051 12.00 % $ 520,000 In March 2016, the Partnership sold the Pro Nova 2014-2 bond for approximately $9.5 million, which approximated the mortgage revenue bond’s carrying value plus accrued interest. The Partnership used approximately $8.4 million of the proceeds from the sale to pay in full and collapse the TOB Trust securitizing this mortgage revenue bond (Note 16). Property Name Month Sold Location Units Maturity Date Base Interest Rate Principal Outstanding at Date of Sale Pro Nova - 2014B 1 March Knoxville, TN - 5/1/2025 5.25 % $ 9,295,000 1 The following table includes the details of the mortgage revenue bond acquisitions during the six months ended June 30, 2016: Property Name Month Acquired Location Units Maturity Date Base Interest Rate Principal Outstanding at Date of Acquisition Companion at Thornhill Apartments January Lexington, SC 180 1/1/2052 5.80 % $ 11,500,000 The following table provides the details of the mortgage revenue bond acquisitions during the six months ended June 30, 2015: Property Name Month Acquired Location Units Maturity Date Base Interest Rate Principal Outstanding at Date of Acquisition Avistar at the Parkway Apartments - Series A April San Antonio, TX 236 5/1/2052 6.00 % $ 13,300,000 Avistar at the Parkway Apartments - Series B April San Antonio, TX 236 6/1/2052 12.00 % $ 125,000 Renaissance June Baton Rouge, LA 208 6/1/2050 6.00 % $ 11,500,000 Vantage at Harlingen June San Antonio, TX 288 9/1/2053 6.00 % $ 24,575,000 Vantage at Judson June San Antonio, TX 288 1/1/2053 6.00 % $ 26,540,000 Silver Moon - Series A June Albuquerque, 151 8/1/2055 6.00 % $ 8,000,000 Silver Moon - Series B June Albuquerque, NM 151 8/1/2055 12.00 % $ 500,000 Suites on Paseo Series B March San Diego, CA 394 12/1/2033 9.00 % $ 5,500,000 Concord at Gulfgate - Series A January Houston, TX 288 2/1/2032 6.00 % $ 17,060,000 Concord at Gulfgate - Series B January Houston, TX 288 3/1/2032 12.00 % $ 2,125,000 Concord at Little York - Series A January Houston, TX 276 2/1/2032 6.00 % $ 12,480,000 Concord at Little York - Series B January Houston, TX 276 3/1/2032 12.00 % $ 960,000 Concord at Williamcrest - Series A January Houston, TX 288 2/1/2032 6.00 % $ 18,020,000 Concord at Williamcrest - Series B January Houston, TX 288 3/1/2032 12.00 % $ 2,800,000 Valuation - As all of the Partnership’s investments in mortgage revenue bonds are classified as available-for-sale securities, they are reported on the balance sheet at their estimated fair values. On June 30, 2016, the weighted average base rate of the mortgage revenue bonds reported in the condensed consolidated financial statements was approximately 6.4% per annum. Due to the limited market for the mortgage revenue bonds, these estimates of fair value do not necessarily represent what the Partnership would actually receive if the mortgage revenue bonds were sold. There is no active trading market for the mortgage revenue bonds and price quotes for them are not typically available. On June 30, 2016, management valued all of the Partnership’s mortgage revenue bonds using discounted cash flow and yield to maturity analyses, which encompasses judgment in its application. The key assumption in management’s yield to maturity analysis is the range of effective yields of the individual mortgage revenue bonds. The effective yield analysis for each mortgage revenue bond considers the current market yield on similar mortgage revenue bonds as well as the debt service coverage ratio of each underlying property serving as collateral for the mortgage revenue bond. On June 30, 2016, the range of effective yields on the individual mortgage revenue bonds was 3.8% to 11.2% per annum. At December 31, 2015, the range of effective yields on the individual mortgage revenue bonds was 4.6% to 12.1% per annum. Unrealized gains or losses on these mortgage revenue bonds are recorded in the Condensed Consolidated Statements of Comprehensive Income (Loss) to reflect changes in their estimated fair values resulting from market conditions and fluctuations in the present value of the expected cash flows from the underlying properties. |