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SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Gross Amounts of Which Carried at End of Year Total $ 1,045,454 $ 982,827 $ 804,489 $ 828,093
Accumulated Depreciation 154,281 $ 138,808 $ 115,368 $ 132,291
Properties Held for Investment/Corporate Debt [Member]        
Encumbrances 871,481      
Initial Cost Land 173,247      
Initial Cost Building & Improvements 788,954      
Cost Capitalized Subsequent to Acquisition Improvements 80,855      
Asset Impairment (44,561)      
Gross Amounts of Which Carried at End of Year Land 164,285      
Gross Amounts of Which Carried at End of Year Building & Improvements 834,213      
Gross Amounts of Which Carried at End of Year Total 998,498      
Accumulated Depreciation 154,281      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member]        
Encumbrances 553,512      
Initial Cost Land 61,025      
Initial Cost Building & Improvements 634,601      
Cost Capitalized Subsequent to Acquisition Improvements 5,288      
Asset Impairment (3,180)      
Gross Amounts of Which Carried at End of Year Land 61,025      
Gross Amounts of Which Carried at End of Year Building & Improvements 636,709      
Gross Amounts of Which Carried at End of Year Total 697,733      
Accumulated Depreciation 98,588      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Anderson Estates, Oxford [Member] | MISSISSIPPI        
Encumbrances 796      
Initial Cost Land 378      
Initial Cost Building & Improvements 2,683      
Cost Capitalized Subsequent to Acquisition Improvements 313      
Gross Amounts of Which Carried at End of Year Land 378      
Gross Amounts of Which Carried at End of Year Building & Improvements 2,996      
Gross Amounts of Which Carried at End of Year Total 3,373      
Accumulated Depreciation $ 732      
Date of Construction 2003      
Date Acquired 01/06      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Blue Lake Villas I, Waxahachie [Member] | TEXAS        
Encumbrances $ 10,589      
Initial Cost Land 526      
Initial Cost Building & Improvements 11,057      
Cost Capitalized Subsequent to Acquisition Improvements 19      
Gross Amounts of Which Carried at End of Year Land 526      
Gross Amounts of Which Carried at End of Year Building & Improvements 11,076      
Gross Amounts of Which Carried at End of Year Total 11,602      
Accumulated Depreciation $ 3,809      
Date of Construction 2003      
Date Acquired 01/02      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Blue Lake Villas II, Waxahachie [Member] | TEXAS        
Encumbrances $ 3,832      
Initial Cost Land 287      
Initial Cost Building & Improvements 4,451      
Cost Capitalized Subsequent to Acquisition Improvements 45      
Gross Amounts of Which Carried at End of Year Land 287      
Gross Amounts of Which Carried at End of Year Building & Improvements 4,496      
Gross Amounts of Which Carried at End of Year Total 4,783      
Accumulated Depreciation $ 1,023      
Date of Construction 2004      
Date Acquired 01/04      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Breakwater Bay, Beaumont [Member] | TEXAS        
Encumbrances $ 9,271      
Initial Cost Land 740      
Initial Cost Building & Improvements 10,435      
Cost Capitalized Subsequent to Acquisition Improvements 63      
Gross Amounts of Which Carried at End of Year Land 740      
Gross Amounts of Which Carried at End of Year Building & Improvements 10,498      
Gross Amounts of Which Carried at End of Year Total 11,238      
Accumulated Depreciation $ 3,123      
Date of Construction 2004      
Date Acquired 05/03      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Bridgewood Ranch, Kaufman [Member] | TEXAS        
Encumbrances $ 6,340      
Initial Cost Land 762      
Initial Cost Building & Improvements 6,856      
Cost Capitalized Subsequent to Acquisition Improvements 57      
Gross Amounts of Which Carried at End of Year Land 762      
Gross Amounts of Which Carried at End of Year Building & Improvements 6,913      
Gross Amounts of Which Carried at End of Year Total 7,675      
Accumulated Depreciation $ 1,553      
Date of Construction 2007      
Date Acquired 04/08      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Capitol Hill, Little Rock [Member] | ARKANSAS        
Encumbrances $ 8,893      
Initial Cost Land 1,860      
Initial Cost Building & Improvements 7,948      
Cost Capitalized Subsequent to Acquisition Improvements 55      
Gross Amounts of Which Carried at End of Year Land 1,860      
Gross Amounts of Which Carried at End of Year Building & Improvements 8,003      
Gross Amounts of Which Carried at End of Year Total 9,862      
Accumulated Depreciation $ 2,506      
Date of Construction 2003      
Date Acquired 03/03      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Centennial, Oak Ridge [Member] | TENNESSEE        
Encumbrances $ 20,794      
Initial Cost Land 2,570      
Initial Cost Building & Improvements 22,589      
Gross Amounts of Which Carried at End of Year Land 2,570      
Gross Amounts of Which Carried at End of Year Building & Improvements 22,589      
Gross Amounts of Which Carried at End of Year Total 25,159      
Accumulated Depreciation $ 800      
Date of Construction 2011      
Date Acquired 07/14      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Curtis Moore Estates, Greenwood [Member] | MISSISSIPPI        
Encumbrances $ 1,444      
Initial Cost Land 847      
Initial Cost Building & Improvements 5,733      
Cost Capitalized Subsequent to Acquisition Improvements 285      
Gross Amounts of Which Carried at End of Year Land 847      
Gross Amounts of Which Carried at End of Year Building & Improvements 6,018      
Gross Amounts of Which Carried at End of Year Total 6,864      
Accumulated Depreciation $ 1,772      
Date of Construction 2003      
Date Acquired 01/06      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Crossing at Opelika, Opelika [Member] | ALABAMA        
Encumbrances $ 14,700      
Initial Cost Land 1,590      
Initial Cost Building & Improvements 14,314      
Gross Amounts of Which Carried at End of Year Land 1,590      
Gross Amounts of Which Carried at End of Year Building & Improvements 14,314      
Gross Amounts of Which Carried at End of Year Total 15,904      
Accumulated Depreciation $ 267      
Date of Construction 2015      
Date Acquired 12/15      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Dakota Arms, Lubbock [Member] | TEXAS        
Encumbrances $ 12,356      
Initial Cost Land 921      
Initial Cost Building & Improvements 12,644      
Cost Capitalized Subsequent to Acquisition Improvements 358      
Gross Amounts of Which Carried at End of Year Land 921      
Gross Amounts of Which Carried at End of Year Building & Improvements 13,002      
Gross Amounts of Which Carried at End of Year Total 13,923      
Accumulated Depreciation $ 3,860      
Date of Construction 2004      
Date Acquired 01/04      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | David Jordan Phase II, Greenwood [Member] | MISSISSIPPI        
Encumbrances $ 563      
Initial Cost Land 277      
Initial Cost Building & Improvements 1,521      
Cost Capitalized Subsequent to Acquisition Improvements 70      
Gross Amounts of Which Carried at End of Year Land 277      
Gross Amounts of Which Carried at End of Year Building & Improvements 1,591      
Gross Amounts of Which Carried at End of Year Total 1,868      
Accumulated Depreciation $ 461      
Date of Construction 1999      
Date Acquired 01/06      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | David Jordan Phase III, Greenwood [Member] | MISSISSIPPI        
Encumbrances $ 573      
Initial Cost Land 439      
Initial Cost Building & Improvements 2,115      
Cost Capitalized Subsequent to Acquisition Improvements 64      
Gross Amounts of Which Carried at End of Year Land 439      
Gross Amounts of Which Carried at End of Year Building & Improvements 2,179      
Gross Amounts of Which Carried at End of Year Total 2,618      
Accumulated Depreciation $ 590      
Date of Construction 2003      
Date Acquired 01/06      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Desoto Ranch, DeSoto [Member] | TEXAS        
Encumbrances $ 15,119      
Initial Cost Land 1,472      
Initial Cost Building & Improvements 17,854      
Cost Capitalized Subsequent to Acquisition Improvements 65      
Gross Amounts of Which Carried at End of Year Land 1,472      
Gross Amounts of Which Carried at End of Year Building & Improvements 17,919      
Gross Amounts of Which Carried at End of Year Total 19,391      
Accumulated Depreciation $ 5,772      
Date of Construction 2002      
Date Acquired 05/02      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Falcon Lakes, Arlington [Member] | TEXAS        
Encumbrances $ 13,530      
Initial Cost Land 1,437      
Initial Cost Building & Improvements 15,095      
Cost Capitalized Subsequent to Acquisition Improvements 449      
Gross Amounts of Which Carried at End of Year Land 1,437      
Gross Amounts of Which Carried at End of Year Building & Improvements 15,544      
Gross Amounts of Which Carried at End of Year Total 16,981      
Accumulated Depreciation $ 5,566      
Date of Construction 2001      
Date Acquired 10/01      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Heather Creek, Mesquite [Member] | TEXAS        
Encumbrances $ 11,162      
Initial Cost Land 1,345      
Initial Cost Building & Improvements 12,015      
Cost Capitalized Subsequent to Acquisition Improvements 51      
Gross Amounts of Which Carried at End of Year Land 1,345      
Gross Amounts of Which Carried at End of Year Building & Improvements 12,066      
Gross Amounts of Which Carried at End of Year Total 13,410      
Accumulated Depreciation $ 3,626      
Date of Construction 2003      
Date Acquired 03/03      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Holland Lake, Weatherford [Member] | TEXAS        
Encumbrances $ 11,669      
Initial Cost Land 1,450      
Initial Cost Building & Improvements 14,611      
Gross Amounts of Which Carried at End of Year Land 1,450      
Gross Amounts of Which Carried at End of Year Building & Improvements 14,611      
Gross Amounts of Which Carried at End of Year Total 16,061      
Accumulated Depreciation $ 609      
Date of Construction 2004      
Date Acquired 05/14      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Lake Forest, Houston [Member] | TEXAS        
Encumbrances $ 12,007      
Initial Cost Land 927      
Initial Cost Building & Improvements 12,267      
Cost Capitalized Subsequent to Acquisition Improvements 1,023      
Gross Amounts of Which Carried at End of Year Land 927      
Gross Amounts of Which Carried at End of Year Building & Improvements 13,290      
Gross Amounts of Which Carried at End of Year Total 14,217      
Accumulated Depreciation $ 3,919      
Date of Construction 2004      
Date Acquired 01/04      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Legacy at Pleasant Grove, Texarkana [Member] | TEXAS        
Encumbrances $ 14,757      
Initial Cost Land 2,005      
Initial Cost Building & Improvements 17,892      
Gross Amounts of Which Carried at End of Year Land 2,005      
Gross Amounts of Which Carried at End of Year Building & Improvements 17,892      
Gross Amounts of Which Carried at End of Year Total 19,897      
Accumulated Depreciation $ 932      
Date of Construction 2006      
Date Acquired 12/14      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Lodge at Pecan Creek, Denton [Member] | TEXAS        
Encumbrances $ 16,174      
Initial Cost Land 1,349      
Initial Cost Building & Improvements 16,180      
Gross Amounts of Which Carried at End of Year Land 1,349      
Gross Amounts of Which Carried at End of Year Building & Improvements 16,180      
Gross Amounts of Which Carried at End of Year Total 17,529      
Accumulated Depreciation $ 2,090      
Date of Construction 2011      
Date Acquired 10/05      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Mansions of Mansfield, Mansfield [Member] | TEXAS        
Encumbrances $ 15,347      
Initial Cost Land 977      
Initial Cost Building & Improvements 17,799      
Cost Capitalized Subsequent to Acquisition Improvements 75      
Gross Amounts of Which Carried at End of Year Land 977      
Gross Amounts of Which Carried at End of Year Building & Improvements 17,874      
Gross Amounts of Which Carried at End of Year Total 18,851      
Accumulated Depreciation $ 3,465      
Date of Construction 2009      
Date Acquired 09/05      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Metropolitan Apartments, North Little Rock [Member] | ARKANSAS        
Encumbrances $ 24,303      
Initial Cost Land 3,229      
Initial Cost Building & Improvements 29,003      
Gross Amounts of Which Carried at End of Year Land 3,229      
Gross Amounts of Which Carried at End of Year Building & Improvements 29,004      
Gross Amounts of Which Carried at End of Year Total 32,233      
Accumulated Depreciation $ 363      
Date of Construction 2010      
Date Acquired 06/16      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Mission Oaks, San Antonio [Member] | TEXAS        
Encumbrances $ 14,670      
Initial Cost Land 1,266      
Initial Cost Building & Improvements 16,627      
Cost Capitalized Subsequent to Acquisition Improvements 212      
Gross Amounts of Which Carried at End of Year Land 1,266      
Gross Amounts of Which Carried at End of Year Building & Improvements 16,839      
Gross Amounts of Which Carried at End of Year Total 18,105      
Accumulated Depreciation $ 4,077      
Date of Construction 2005      
Date Acquired 05/05      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Monticello Estate, Monticello [Member] | ARKANSAS        
Encumbrances $ 445      
Initial Cost Land 285      
Initial Cost Building & Improvements 1,493      
Cost Capitalized Subsequent to Acquisition Improvements 15      
Gross Amounts of Which Carried at End of Year Land 285      
Gross Amounts of Which Carried at End of Year Building & Improvements 1,508      
Gross Amounts of Which Carried at End of Year Total 1,793      
Accumulated Depreciation $ 422      
Date of Construction 2001      
Date Acquired 01/06      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Northside on Travis, Sherman [Member] | TEXAS        
Encumbrances $ 13,099      
Initial Cost Land 1,300      
Initial Cost Building & Improvements 14,560      
Cost Capitalized Subsequent to Acquisition Improvements 27      
Gross Amounts of Which Carried at End of Year Land 1,300      
Gross Amounts of Which Carried at End of Year Building & Improvements 14,587      
Gross Amounts of Which Carried at End of Year Total 15,887      
Accumulated Depreciation $ 2,671      
Date of Construction 2009      
Date Acquired 10/07      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Oak Hollow, Sequin [Member] | TEXAS        
Encumbrances $ 11,832      
Initial Cost Land 1,435      
Initial Cost Building & Improvements 12,406      
Gross Amounts of Which Carried at End of Year Land 1,435      
Gross Amounts of Which Carried at End of Year Building & Improvements 12,406      
Gross Amounts of Which Carried at End of Year Total 13,841      
Accumulated Depreciation $ 465      
Date of Construction 2011      
Date Acquired 07/14      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Oceanaire Apartments, Biloxi, [Member] | MISSISSIPPI        
Encumbrances $ 11,374      
Initial Cost Land 1,397      
Initial Cost Building & Improvements 12,575      
Gross Amounts of Which Carried at End of Year Land 1,397      
Gross Amounts of Which Carried at End of Year Building & Improvements 12,575      
Gross Amounts of Which Carried at End of Year Total 13,972      
Accumulated Depreciation $ 567      
Date of Construction 2009      
Date Acquired 12/16      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Overlook at Allensville, Sevierville [Member] | TENNESSEE        
Encumbrances $ 13,607      
Initial Cost Land 1,228      
Initial Cost Building & Improvements 12,296      
Gross Amounts of Which Carried at End of Year Land 1,228      
Gross Amounts of Which Carried at End of Year Building & Improvements 12,296      
Gross Amounts of Which Carried at End of Year Total $ 13,526      
Date of Construction 2012      
Date Acquired 10/15      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Parc at Clarksville, Clarksville [Member] | TENNESSEE        
Encumbrances $ 12,658      
Initial Cost Land 587      
Initial Cost Building & Improvements 14,300      
Cost Capitalized Subsequent to Acquisition Improvements 103      
Gross Amounts of Which Carried at End of Year Land 587      
Gross Amounts of Which Carried at End of Year Building & Improvements 14,403      
Gross Amounts of Which Carried at End of Year Total 14,990      
Accumulated Depreciation $ 3,022      
Date of Construction 2007      
Date Acquired 06/02      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Parc at Denham Springs, Denham Springs [Member] | LOUISIANA        
Encumbrances $ 18,520      
Initial Cost Land 1,022      
Initial Cost Building & Improvements 20,188      
Cost Capitalized Subsequent to Acquisition Improvements 8      
Gross Amounts of Which Carried at End of Year Land 1,022      
Gross Amounts of Which Carried at End of Year Building & Improvements 20,196      
Gross Amounts of Which Carried at End of Year Total 21,218      
Accumulated Depreciation $ 3,012      
Date of Construction 2011      
Date Acquired 07/07      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Parc at Maumelle, Little Rock [Member] | ARKANSAS        
Encumbrances $ 15,694      
Initial Cost Land 1,710      
Initial Cost Building & Improvements 17,688      
Cost Capitalized Subsequent to Acquisition Improvements 218      
Gross Amounts of Which Carried at End of Year Land 1,710      
Gross Amounts of Which Carried at End of Year Building & Improvements 17,906      
Gross Amounts of Which Carried at End of Year Total 19,617      
Accumulated Depreciation $ 4,759      
Date of Construction 2006      
Date Acquired 12/04      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Parc at Metro Center, Nashville [Member] | TENNESSEE        
Encumbrances $ 10,316      
Initial Cost Land 1,044      
Initial Cost Building & Improvements 12,226      
Cost Capitalized Subsequent to Acquisition Improvements 476      
Gross Amounts of Which Carried at End of Year Land 1,044      
Gross Amounts of Which Carried at End of Year Building & Improvements 12,702      
Gross Amounts of Which Carried at End of Year Total 13,746      
Accumulated Depreciation $ 3,359      
Date of Construction 2006      
Date Acquired 05/05      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Parc at Rogers, Rogers [Member] | ARKANSAS        
Encumbrances $ 20,382      
Initial Cost Land 1,482      
Initial Cost Building & Improvements 22,995      
Cost Capitalized Subsequent to Acquisition Improvements 449      
Asset Impairment (3,180)      
Gross Amounts of Which Carried at End of Year Land 1,482      
Gross Amounts of Which Carried at End of Year Building & Improvements 20,264      
Gross Amounts of Which Carried at End of Year Total 21,746      
Accumulated Depreciation $ 4,321      
Date of Construction 2007      
Date Acquired 04/04      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Preserve at Pecan Creek, Denton [Member] | TEXAS        
Encumbrances $ 14,251      
Initial Cost Land 902      
Initial Cost Building & Improvements 16,626      
Cost Capitalized Subsequent to Acquisition Improvements 42      
Gross Amounts of Which Carried at End of Year Land 902      
Gross Amounts of Which Carried at End of Year Building & Improvements 16,668      
Gross Amounts of Which Carried at End of Year Total 17,570      
Accumulated Depreciation $ 3,473      
Date of Construction 2008      
Date Acquired 10/05      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Preserve at Prairie Pointe, Lubbock [Member] | TEXAS        
Encumbrances $ 10,057      
Initial Cost Land 1,074      
Initial Cost Building & Improvements 10,604      
Cost Capitalized Subsequent to Acquisition Improvements 178      
Gross Amounts of Which Carried at End of Year Land 1,074      
Gross Amounts of Which Carried at End of Year Building & Improvements 10,782      
Gross Amounts of Which Carried at End of Year Total 11,856      
Accumulated Depreciation $ 462      
Date of Construction 2005      
Date Acquired 04/15      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Riverwalk Phase I, Greenville [Member] | MISSISSIPPI        
Encumbrances $ 282      
Initial Cost Land 198      
Initial Cost Building & Improvements 1,537      
Cost Capitalized Subsequent to Acquisition Improvements 5      
Gross Amounts of Which Carried at End of Year Land 198      
Gross Amounts of Which Carried at End of Year Building & Improvements 1,542      
Gross Amounts of Which Carried at End of Year Total 1,740      
Accumulated Depreciation $ 464      
Date of Construction 2003      
Date Acquired 01/06      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Riverwalk Phase II, Greenville [Member] | MISSISSIPPI        
Encumbrances $ 1,089      
Initial Cost Land 297      
Initial Cost Building & Improvements 4,007      
Cost Capitalized Subsequent to Acquisition Improvements 163      
Gross Amounts of Which Carried at End of Year Land 297      
Gross Amounts of Which Carried at End of Year Building & Improvements 4,170      
Gross Amounts of Which Carried at End of Year Total 4,467      
Accumulated Depreciation $ 1,467      
Date of Construction 2003      
Date Acquired 01/06      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Sawgrass Creek, New Port Richey, FL [Member] | FLORIDA        
Initial Cost Land $ 784      
Initial Cost Building & Improvements 7,056      
Gross Amounts of Which Carried at End of Year Land 784      
Gross Amounts of Which Carried at End of Year Building & Improvements 7,056      
Gross Amounts of Which Carried at End of Year Total 7,840      
Accumulated Depreciation $ 73      
Date of Construction 2008      
Date Acquired 08/16      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Sonoma Court, Rockwall [Member] | TEXAS        
Encumbrances $ 10,616      
Initial Cost Land 941      
Initial Cost Building & Improvements 11,072      
Cost Capitalized Subsequent to Acquisition Improvements 1      
Gross Amounts of Which Carried at End of Year Land 941      
Gross Amounts of Which Carried at End of Year Building & Improvements 11,073      
Gross Amounts of Which Carried at End of Year Total 12,014      
Accumulated Depreciation $ 1,500      
Date of Construction 2011      
Date Acquired 07/10      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Sugar Mill, Baton Rouge [Member] | LOUISIANA        
Encumbrances $ 11,216      
Initial Cost Land 1,437      
Initial Cost Building & Improvements 13,367      
Cost Capitalized Subsequent to Acquisition Improvements 204      
Gross Amounts of Which Carried at End of Year Land 1,437      
Gross Amounts of Which Carried at End of Year Building & Improvements 13,571      
Gross Amounts of Which Carried at End of Year Total 15,008      
Accumulated Depreciation $ 2,500      
Date of Construction 2009      
Date Acquired 08/08      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Tattersall Village, Hinesville [Member] | GA        
Encumbrances $ 26,121      
Initial Cost Land 2,691      
Initial Cost Building & Improvements 23,961      
Gross Amounts of Which Carried at End of Year Land 2,691      
Gross Amounts of Which Carried at End of Year Building & Improvements 23,961      
Gross Amounts of Which Carried at End of Year Total $ 26,652      
Date of Construction 2010      
Date Acquired 12/16      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Toulon, Gautier [Member] | MISSISSIPPI        
Encumbrances $ 20,356      
Initial Cost Land 1,993      
Initial Cost Building & Improvements 20,107      
Gross Amounts of Which Carried at End of Year Land 1,993      
Gross Amounts of Which Carried at End of Year Building & Improvements 20,107      
Gross Amounts of Which Carried at End of Year Total 22,100      
Accumulated Depreciation $ 2,765      
Date of Construction 2011      
Date Acquired 09/09      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Tradewinds, Midland [Member] | TEXAS        
Encumbrances $ 14,477      
Initial Cost Land 3,300      
Initial Cost Building & Improvements 20,073      
Gross Amounts of Which Carried at End of Year Land 3,300      
Gross Amounts of Which Carried at End of Year Building & Improvements 20,073      
Gross Amounts of Which Carried at End of Year Total 23,373      
Accumulated Depreciation $ 748      
Date of Construction 2015      
Date Acquired 06/15      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Villager, Ft. Walton [Member] | FLORIDA        
Encumbrances $ 733      
Initial Cost Land 141      
Initial Cost Building & Improvements 1,268      
Gross Amounts of Which Carried at End of Year Land 141      
Gross Amounts of Which Carried at End of Year Building & Improvements 1,268      
Gross Amounts of Which Carried at End of Year Total 1,409      
Accumulated Depreciation $ 53      
Date of Construction 1972      
Date Acquired 06/15      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Villas at Park West I, Pueblo [Member] | COLORADO        
Encumbrances $ 10,410      
Initial Cost Land 1,171      
Initial Cost Building & Improvements 10,453      
Gross Amounts of Which Carried at End of Year Land 1,171      
Gross Amounts of Which Carried at End of Year Building & Improvements 10,453      
Gross Amounts of Which Carried at End of Year Total 11,624      
Accumulated Depreciation $ 544      
Date of Construction 2005      
Date Acquired 12/14      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Villas at Park West II, Pueblo [Member] | COLORADO        
Encumbrances $ 9,418      
Initial Cost Land 1,463      
Initial Cost Building & Improvements 13,060      
Gross Amounts of Which Carried at End of Year Land 1,463      
Gross Amounts of Which Carried at End of Year Building & Improvements 13,060      
Gross Amounts of Which Carried at End of Year Total 14,523      
Accumulated Depreciation $ 680      
Date of Construction 2010      
Date Acquired 12/14      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Vista Ridge, Tupelo [Member] | MISSISSIPPI        
Encumbrances $ 10,661      
Initial Cost Land 1,339      
Initial Cost Building & Improvements 13,398      
Gross Amounts of Which Carried at End of Year Land 1,339      
Gross Amounts of Which Carried at End of Year Building & Improvements 13,398      
Gross Amounts of Which Carried at End of Year Total 14,737      
Accumulated Depreciation $ 848      
Date of Construction 2009      
Date Acquired 10/15      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Vistas of Vance Jackson, San Antonio [Member] | TEXAS        
Encumbrances $ 15,076      
Initial Cost Land 1,327      
Initial Cost Building & Improvements 16,539      
Cost Capitalized Subsequent to Acquisition Improvements 127      
Gross Amounts of Which Carried at End of Year Land 1,327      
Gross Amounts of Which Carried at End of Year Building & Improvements 16,666      
Gross Amounts of Which Carried at End of Year Total 17,993      
Accumulated Depreciation $ 4,728      
Date of Construction 2004      
Date Acquired 01/04      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Waterford, Roseberg [Member] | TEXAS        
Encumbrances $ 17,167      
Initial Cost Land 2,341      
Initial Cost Building & Improvements 20,880      
Gross Amounts of Which Carried at End of Year Land 2,341      
Gross Amounts of Which Carried at End of Year Building & Improvements 20,880      
Gross Amounts of Which Carried at End of Year Total 23,221      
Accumulated Depreciation $ 783      
Date of Construction 2013      
Date Acquired 06/14      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Westwood, Mary Ester [Member] | FLORIDA        
Encumbrances $ 4,167      
Initial Cost Land 692      
Initial Cost Building & Improvements 6,650      
Gross Amounts of Which Carried at End of Year Land 692      
Gross Amounts of Which Carried at End of Year Building & Improvements 6,650      
Gross Amounts of Which Carried at End of Year Total 7,342      
Accumulated Depreciation $ 263      
Date of Construction 1972      
Date Acquired 06/15      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Properties Held for Investment Apartments [Member] | Windsong, Fort Worth [Member] | TEXAS        
Encumbrances $ 10,599      
Initial Cost Land 790      
Initial Cost Building & Improvements 11,526      
Cost Capitalized Subsequent to Acquisition Improvements 69      
Gross Amounts of Which Carried at End of Year Land 790      
Gross Amounts of Which Carried at End of Year Building & Improvements 11,596      
Gross Amounts of Which Carried at End of Year Total 12,386      
Accumulated Depreciation $ 3,724      
Date of Construction 2002      
Date Acquired 07/03      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Apartments Under Construction [Member]        
Encumbrances $ 13,005      
Initial Cost Land 7,866      
Cost Capitalized Subsequent to Acquisition Improvements 17,421      
Gross Amounts of Which Carried at End of Year Land 7,867      
Gross Amounts of Which Carried at End of Year Building & Improvements 17,421      
Gross Amounts of Which Carried at End of Year Total 25,288      
Properties Held for Investment/Corporate Debt [Member] | Apartments Under Construction [Member] | Terra Lago, Rowlett [Member] | TEXAS        
Encumbrances 13,005      
Initial Cost Land 6,023      
Cost Capitalized Subsequent to Acquisition Improvements 15,406      
Gross Amounts of Which Carried at End of Year Land 6,024      
Gross Amounts of Which Carried at End of Year Building & Improvements 15,406      
Gross Amounts of Which Carried at End of Year Total $ 21,430      
Date Acquired 11/15      
Properties Held for Investment/Corporate Debt [Member] | Apartments Under Construction [Member] | Lakeside Lofts, Farmers Branch [Member] | TEXAS        
Cost Capitalized Subsequent to Acquisition Improvements $ 1,744      
Gross Amounts of Which Carried at End of Year Building & Improvements 1,744      
Gross Amounts of Which Carried at End of Year Total $ 1,744      
Date Acquired 12/14      
Properties Held for Investment/Corporate Debt [Member] | Apartments Under Construction [Member] | Overlook at Allensville Square II, Sevierville [Member] | TENNESSEE        
Initial Cost Land $ 1,843      
Cost Capitalized Subsequent to Acquisition Improvements 271      
Gross Amounts of Which Carried at End of Year Land 1,843      
Gross Amounts of Which Carried at End of Year Building & Improvements 271      
Gross Amounts of Which Carried at End of Year Total $ 2,114      
Date Acquired 11/15      
Properties Held for Investment/Corporate Debt [Member] | Commercial Held for Investment [Member]        
Encumbrances $ 108,348      
Initial Cost Land 24,301      
Initial Cost Building & Improvements 154,354      
Cost Capitalized Subsequent to Acquisition Improvements 40,629      
Asset Impairment (14,900)      
Gross Amounts of Which Carried at End of Year Land 24,301      
Gross Amounts of Which Carried at End of Year Building & Improvements 180,083      
Gross Amounts of Which Carried at End of Year Total 204,384      
Accumulated Depreciation 55,693      
Properties Held for Investment/Corporate Debt [Member] | Commercial Held for Investment [Member] | 600 Las Colinass, Las Colinas [Member] | TEXAS        
Encumbrances 39,237      
Initial Cost Land 5,751      
Initial Cost Building & Improvements 51,759      
Cost Capitalized Subsequent to Acquisition Improvements 16,941      
Gross Amounts of Which Carried at End of Year Land 5,751      
Gross Amounts of Which Carried at End of Year Building & Improvements 68,700      
Gross Amounts of Which Carried at End of Year Total 74,451      
Accumulated Depreciation $ 23,728      
Date of Construction 1984      
Date Acquired 08/05      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Commercial Held for Investment [Member] | 770 South Post Oak, Houston [Member] | TEXAS        
Encumbrances $ 12,700      
Initial Cost Land 1,763      
Initial Cost Building & Improvements 15,834      
Cost Capitalized Subsequent to Acquisition Improvements 165      
Gross Amounts of Which Carried at End of Year Land 1,763      
Gross Amounts of Which Carried at End of Year Building & Improvements 15,999      
Gross Amounts of Which Carried at End of Year Total 17,762      
Accumulated Depreciation $ 660      
Date of Construction 1970      
Date Acquired 07/15      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Commercial Held for Investment [Member] | Bridgeview Plaza, LaCrosse [Member] | WISCONSIN        
Encumbrances $ 5,218      
Cost Capitalized Subsequent to Acquisition Improvements 1,008      
Gross Amounts of Which Carried at End of Year Land      
Gross Amounts of Which Carried at End of Year Building & Improvements 1,008      
Gross Amounts of Which Carried at End of Year Total 1,008      
Accumulated Depreciation $ 521      
Date of Construction 1979      
Date Acquired 03/03      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Commercial Held for Investment [Member] | Browning Place (Park West I), Farmers Branch [Member] | TEXAS        
Encumbrances $ 23,193      
Initial Cost Land 5,096      
Initial Cost Building & Improvements 45,868      
Cost Capitalized Subsequent to Acquisition Improvements 14,355      
Gross Amounts of Which Carried at End of Year Land 5,096      
Gross Amounts of Which Carried at End of Year Building & Improvements 60,223      
Gross Amounts of Which Carried at End of Year Total 65,319      
Accumulated Depreciation $ 21,301      
Date of Construction 1984      
Date Acquired 04/05      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Commercial Held for Investment [Member] | Mahogany Run Golf Course [Member] | VIRGIN ISLANDS, US        
Initial Cost Land $ 7,168      
Initial Cost Building & Improvements 6,031      
Cost Capitalized Subsequent to Acquisition Improvements 142      
Asset Impairment (5,300)      
Gross Amounts of Which Carried at End of Year Land 7,168      
Gross Amounts of Which Carried at End of Year Building & Improvements 873      
Gross Amounts of Which Carried at End of Year Total 8,041      
Accumulated Depreciation $ 323      
Date of Construction 1981      
Date Acquired 11/14      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Commercial Held for Investment [Member] | Fruitland Plaza, Fruitland Park [Member] | FLORIDA        
Initial Cost Land $ 23      
Cost Capitalized Subsequent to Acquisition Improvements 83      
Gross Amounts of Which Carried at End of Year Land 23      
Gross Amounts of Which Carried at End of Year Building & Improvements 83      
Gross Amounts of Which Carried at End of Year Total 106      
Accumulated Depreciation $ 46      
Date Acquired 05/92      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Commercial Held for Investment [Member] | Senlac VHP, Farmers Branch [Member] | TEXAS        
Initial Cost Land $ 622      
Cost Capitalized Subsequent to Acquisition Improvements 142      
Gross Amounts of Which Carried at End of Year Land 622      
Gross Amounts of Which Carried at End of Year Building & Improvements 142      
Gross Amounts of Which Carried at End of Year Total 764      
Accumulated Depreciation $ 134      
Date Acquired 08/05      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Commercial Held for Investment [Member] | Stanford Center, Dallas [Member] | TEXAS        
Encumbrances $ 28,000      
Initial Cost Land 3,878      
Initial Cost Building & Improvements 34,862      
Cost Capitalized Subsequent to Acquisition Improvements 7,793      
Asset Impairment (9,600)      
Gross Amounts of Which Carried at End of Year Land 3,878      
Gross Amounts of Which Carried at End of Year Building & Improvements 33,055      
Gross Amounts of Which Carried at End of Year Total 36,933      
Accumulated Depreciation $ 8,980      
Date Acquired 06/08      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member]        
Encumbrances $ 34,384      
Initial Cost Land 80,058      
Cost Capitalized Subsequent to Acquisition Improvements 17,517      
Asset Impairment (26,480)      
Gross Amounts of Which Carried at End of Year Land 71,095      
Gross Amounts of Which Carried at End of Year Total 71,095      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Dominion Mercer, Farmers Branch, TX [Member] | TEXAS        
Encumbrances 3,572      
Initial Cost Land 3,688      
Gross Amounts of Which Carried at End of Year Land 3,688      
Gross Amounts of Which Carried at End of Year Total $ 3,688      
Date Acquired 10/16      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | 2427 Valley View Ln, Farmers Branch [Member] | TEXAS        
Initial Cost Land $ 76      
Gross Amounts of Which Carried at End of Year Land 76      
Gross Amounts of Which Carried at End of Year Total $ 76      
Date Acquired 07/12      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Audubon, Adams County [Member] | MISSISSIPPI        
Initial Cost Land $ 519      
Cost Capitalized Subsequent to Acquisition Improvements 297      
Gross Amounts of Which Carried at End of Year Land 816      
Gross Amounts of Which Carried at End of Year Total $ 816      
Date Acquired 03/07      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Bonneau Land, Farmers Branch [Member] | TEXAS        
Initial Cost Land $ 1,309      
Gross Amounts of Which Carried at End of Year Land 1,309      
Gross Amounts of Which Carried at End of Year Total $ 1,309      
Date Acquired 12/14      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Cooks Lane, Fort Worth [Member] | TEXAS        
Encumbrances $ 394      
Initial Cost Land 1,094      
Gross Amounts of Which Carried at End of Year Land 1,094      
Gross Amounts of Which Carried at End of Year Total $ 1,094      
Date Acquired 06/04      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Dedeaux, Gulfport [Member] | MISSISSIPPI        
Initial Cost Land $ 1,612      
Cost Capitalized Subsequent to Acquisition Improvements 46      
Asset Impairment (38)      
Gross Amounts of Which Carried at End of Year Land 1,620      
Gross Amounts of Which Carried at End of Year Total $ 1,620      
Date Acquired 10/06      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Denham Springs, Denham Springs [Member] | LOUISIANA        
Encumbrances $ 153      
Initial Cost Land 714      
Gross Amounts of Which Carried at End of Year Land 714      
Gross Amounts of Which Carried at End of Year Total $ 714      
Date Acquired 08/08      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Gautier Land, Gautier [Member] | MISSISSIPPI        
Initial Cost Land $ 202      
Gross Amounts of Which Carried at End of Year Land 202      
Gross Amounts of Which Carried at End of Year Total $ 202      
Date Acquired 07/98      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Hollywood Casino Tract II, Farmers Branch [Member] | TEXAS        
Encumbrances $ 2,645      
Initial Cost Land 6,940      
Cost Capitalized Subsequent to Acquisition Improvements 1,292      
Asset Impairment (3,747)      
Gross Amounts of Which Carried at End of Year Land 4,485      
Gross Amounts of Which Carried at End of Year Total $ 4,485      
Date Acquired 06/02      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Lacy Longhorn Land, Farmers Branch [Member] | TEXAS        
Initial Cost Land $ 1,169      
Asset Impairment (760)      
Gross Amounts of Which Carried at End of Year Land 1,409      
Gross Amounts of Which Carried at End of Year Total $ 1,409      
Date Acquired 06/04      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Lake Shore Villas, Humble [Member] | TEXAS        
Initial Cost Land $ 81      
Cost Capitalized Subsequent to Acquisition Improvements 3      
Gross Amounts of Which Carried at End of Year Land 84      
Gross Amounts of Which Carried at End of Year Total $ 84      
Date Acquired 03/02      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Lubbock Land, Lubbock [Member] | TEXAS        
Initial Cost Land $ 234      
Gross Amounts of Which Carried at End of Year Land 234      
Gross Amounts of Which Carried at End of Year Total $ 234      
Date Acquired 01/04      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Luna Ventures, Farmers Branch TX [Member] | TEXAS        
Initial Cost Land $ 2,934      
Gross Amounts of Which Carried at End of Year Land 2,934      
Gross Amounts of Which Carried at End of Year Total $ 2,934      
Date Acquired 04/08      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Mandahl Bay Land [Member]        
Initial Cost Land $ 667      
Gross Amounts of Which Carried at End of Year Land 667      
Gross Amounts of Which Carried at End of Year Total $ 667      
Date Acquired 01/05      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | McKinney 36, Collin County [Member] | TEXAS        
Encumbrances $ 1,415      
Initial Cost Land 647      
Cost Capitalized Subsequent to Acquisition Improvements 164      
Asset Impairment (19)      
Gross Amounts of Which Carried at End of Year Land 792      
Gross Amounts of Which Carried at End of Year Total $ 792      
Date Acquired 01/98      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Minivest Land, Dallas [Member] | TEXAS        
Initial Cost Land $ 7      
Gross Amounts of Which Carried at End of Year Land 7      
Gross Amounts of Which Carried at End of Year Total $ 7      
Date Acquired 04/13      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Mira Lago, Farmers Branch [Member] | TEXAS        
Initial Cost Land $ 59      
Cost Capitalized Subsequent to Acquisition Improvements 15      
Gross Amounts of Which Carried at End of Year Land 74      
Gross Amounts of Which Carried at End of Year Total $ 74      
Date Acquired 05/01      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Nakash, Malden [Member] | MISSOURI        
Initial Cost Land $ 114      
Gross Amounts of Which Carried at End of Year Land 114      
Gross Amounts of Which Carried at End of Year Total $ 114      
Date Acquired 01/93      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Nashville, Nashville [Member] | TENNESSEE        
Initial Cost Land $ 662      
Cost Capitalized Subsequent to Acquisition Improvements 61      
Gross Amounts of Which Carried at End of Year Land 723      
Gross Amounts of Which Carried at End of Year Total $ 723      
Date Acquired 06/02      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Nicholson Croslin, Dallas [Member] | TEXAS        
Initial Cost Land $ 184      
Asset Impairment (118)      
Gross Amounts of Which Carried at End of Year Land 66      
Gross Amounts of Which Carried at End of Year Total $ 6      
Date Acquired 10/98      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Nicholson Mendoza, Dallas [Member] | TEXAS        
Initial Cost Land $ 80      
Asset Impairment (51)      
Gross Amounts of Which Carried at End of Year Land 29      
Gross Amounts of Which Carried at End of Year Total $ 29      
Date Acquired 10/98      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Ocean Estates, Gulfport [Member] | MISSISSIPPI        
Initial Cost Land $ 1,418      
Cost Capitalized Subsequent to Acquisition Improvements 390      
Gross Amounts of Which Carried at End of Year Land 1,808      
Gross Amounts of Which Carried at End of Year Total $ 1,808      
Date Acquired 10/07      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Senlac Land Tract II, Farmers Branch [Member] | TEXAS        
Initial Cost Land $ 656      
Gross Amounts of Which Carried at End of Year Land 656      
Gross Amounts of Which Carried at End of Year Total $ 656      
Date Acquired 08/05      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Sugar Mill Land, Baton Rouge [Member] | LOUISIANA        
Encumbrances $ 116      
Initial Cost Land 445      
Cost Capitalized Subsequent to Acquisition Improvements 242      
Gross Amounts of Which Carried at End of Year Land 687      
Gross Amounts of Which Carried at End of Year Total $ 687      
Date Acquired 08/13      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Texas Plaza Land, Irving [Member] | TEXAS        
Initial Cost Land $ 1,738      
Asset Impairment (238)      
Gross Amounts of Which Carried at End of Year Land 1,500      
Gross Amounts of Which Carried at End of Year Total $ 1,500      
Date Acquired 12/06      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Travis Ranch Land, Kaufman County [Member] | TEXAS        
Encumbrances $ 757      
Initial Cost Land 1,030      
Gross Amounts of Which Carried at End of Year Land 1,030      
Gross Amounts of Which Carried at End of Year Total $ 1,030      
Date Acquired 08/08      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Travis Ranch Retail, Kaufman City [Member] | TEXAS        
Initial Cost Land $ 1,517      
Gross Amounts of Which Carried at End of Year Land 1,517      
Gross Amounts of Which Carried at End of Year Total $ 1,517      
Date Acquired 08/08      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Union Pacific Railroad Land, Dallas [Member] | TEXAS        
Initial Cost Land $ 130      
Gross Amounts of Which Carried at End of Year Land 130      
Gross Amounts of Which Carried at End of Year Total $ 130      
Date Acquired 03/04      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Valley View 34 (Mercer Crossing), Farmers Branch [Member] | TEXAS        
Initial Cost Land $ 1,173      
Asset Impairment (94)      
Gross Amounts of Which Carried at End of Year Land 228      
Gross Amounts of Which Carried at End of Year Total $ 228      
Date Acquired 08/08      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Willowick Land, Pensacola [Member] | FLORIDA        
Initial Cost Land $ 137      
Gross Amounts of Which Carried at End of Year Land 137      
Gross Amounts of Which Carried at End of Year Total $ 137      
Date Acquired 01/95      
Properties Held for Investment/Corporate Debt [Member] | Land Held for Investment [Member] | Windmill Farms Land, Kaufman County [Member] | TEXAS        
Encumbrances $ 25,332      
Initial Cost Land 48,822      
Cost Capitalized Subsequent to Acquisition Improvements 15,007      
Asset Impairment (20,564)      
Gross Amounts of Which Carried at End of Year Land 43,265      
Gross Amounts of Which Carried at End of Year Total $ 43,265      
Date Acquired 11/11      
Properties Held for Investment/Corporate Debt [Member] | Corporate Departments/Investments/Misc [Member]        
Encumbrances $ 162,232      
Properties Held for Investment/Corporate Debt [Member] | Corporate Departments/Investments/Misc [Member] | TCI - Corporate [Member]        
Encumbrances 162,232      
Properties Held for Sale [Member]        
Encumbrances 376      
Properties Held for Sale [Member] | Commercial Held for Sale [Member]        
Encumbrances 376      
Properties Held for Sale [Member] | Commercial Held for Sale [Member] | Dunes Plaza, Michigan City [Member] | INDIANA        
Encumbrances $ 376      
Date of Construction 1978      
Date Acquired 03/92      
Life on Which Depreciation In Latest Statement of Operation is Computed 40 years      
Properties Subject to Sales Contract Apartments [Member]        
Encumbrances $ 5,142      
Initial Cost Land 67,143      
Cost Capitalized Subsequent to Acquisition Improvements 842      
Asset Impairment (21,029)      
Gross Amounts of Which Carried at End of Year Land 46,956      
Gross Amounts of Which Carried at End of Year Total 46,956      
Properties Subject to Sales Contract Apartments [Member] | Land Subject to Sales Contract [Member]        
Encumbrances 5,142      
Initial Cost Land 67,143      
Cost Capitalized Subsequent to Acquisition Improvements 842      
Asset Impairment (21,029)      
Gross Amounts of Which Carried at End of Year Land 46,956      
Gross Amounts of Which Carried at End of Year Total 46,956      
Properties Subject to Sales Contract Apartments [Member] | Land Subject to Sales Contract [Member] | Dominion Tract, Dallas [Member] | TEXAS        
Encumbrances 3,360      
Initial Cost Land 3,931      
Cost Capitalized Subsequent to Acquisition Improvements 53      
Asset Impairment (1,624)      
Gross Amounts of Which Carried at End of Year Land 2,360      
Gross Amounts of Which Carried at End of Year Total $ 2,360      
Date Acquired 03/99      
Properties Subject to Sales Contract Apartments [Member] | Land Subject to Sales Contract [Member] | Hollywood Casino Tract I, Farmers Branch [Member] | TEXAS        
Encumbrances $ 1,410      
Initial Cost Land 8,470      
Cost Capitalized Subsequent to Acquisition Improvements 147      
Asset Impairment (5,297)      
Gross Amounts of Which Carried at End of Year Land 3,320      
Gross Amounts of Which Carried at End of Year Total $ 3,320      
Date Acquired 03/08      
Properties Subject to Sales Contract Apartments [Member] | Land Subject to Sales Contract [Member] | LaDue Land, Farmers Branch [Member] | TEXAS        
Initial Cost Land $ 1,900      
Asset Impairment (55)      
Gross Amounts of Which Carried at End of Year Land 1,845      
Gross Amounts of Which Carried at End of Year Total $ 1,845      
Date Acquired 07/98      
Properties Subject to Sales Contract Apartments [Member] | Land Subject to Sales Contract [Member] | Three Hickory Land, Farmers Branch [Member] | TEXAS        
Initial Cost Land $ 1,202      
Gross Amounts of Which Carried at End of Year Land 1,202      
Gross Amounts of Which Carried at End of Year Total $ 1,202      
Date Acquired 03/14      
Properties Subject to Sales Contract Apartments [Member] | Land Subject to Sales Contract [Member] | Travelers Land, Farmers Branch [Member] | TEXAS        
Initial Cost Land $ 21,511      
Cost Capitalized Subsequent to Acquisition Improvements 4      
Gross Amounts of Which Carried at End of Year Land 21,515      
Gross Amounts of Which Carried at End of Year Total $ 21,515      
Date Acquired 11/06      
Properties Subject to Sales Contract Apartments [Member] | Land Subject to Sales Contract [Member] | Travelers Land, Farmers Branch [Member] | TEXAS        
Initial Cost Land $ 6,891      
Asset Impairment (4,978)      
Gross Amounts of Which Carried at End of Year Land 1,913      
Gross Amounts of Which Carried at End of Year Total $ 1,913      
Date Acquired 11/06      
Properties Subject to Sales Contract Apartments [Member] | Land Subject to Sales Contract [Member] | Walker Land, Dallas County [Member] | TEXAS        
Initial Cost Land $ 19,728      
Cost Capitalized Subsequent to Acquisition Improvements 71      
Asset Impairment (6,624)      
Gross Amounts of Which Carried at End of Year Land 13,175      
Gross Amounts of Which Carried at End of Year Total $ 13,175      
Date Acquired 09/06      
Properties Subject to Sales Contract Apartments [Member] | Land Subject to Sales Contract [Member] | Whorton Land Bentonville [Member] | ARKANSAS        
Encumbrances $ 372      
Initial Cost Land 3,510      
Cost Capitalized Subsequent to Acquisition Improvements 567      
Asset Impairment (2,451)      
Gross Amounts of Which Carried at End of Year Land 1,626      
Gross Amounts of Which Carried at End of Year Total $ 1,626      
Date Acquired 06/05      
Land Sold [Member]        
Encumbrances $ 876,999      
Initial Cost Land 240,390      
Initial Cost Building & Improvements 788,954      
Cost Capitalized Subsequent to Acquisition Improvements 81,697      
Asset Impairment (65,590)      
Gross Amounts of Which Carried at End of Year Land 211,241      
Gross Amounts of Which Carried at End of Year Building & Improvements 834,213      
Gross Amounts of Which Carried at End of Year Total 1,045,454      
Accumulated Depreciation 154,281      
Land Sold [Member] | Land Subject to Sales Contract 1 [Member]        
Encumbrances (25)      
Land Sold [Member] | Land Subject to Sales Contract 1 [Member] | Red Cross Land [Member]        
Encumbrances $ (25)