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Schedule III - Real Estate and Accumulated Depreciation and Amortization Part 7 (Detail) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Schedule Of Investments In Real Estate [Line Items]        
Total Investment in Real Estate $ 1,514,750,000 $ 1,410,051,000 $ 1,246,588,000 $ 1,113,651,000
Accumulated Depreciation And Amortization Description [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company 1,456,333,000      
Cost Capitalized Subsequent to Initial Investment 58,417,000      
Land 804,717,000      
Building and Improvements 710,033,000      
Total Investment in Real Estate 1,514,750,000      
Accumulated Depreciation and Amortization $ 233,865,000      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Jackson Three [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 615,000      
Land 37,000      
Building and Improvements 578,000      
Total Investment in Real Estate 615,000      
Accumulated Depreciation and Amortization $ 41,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Lambertville One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 617      
Land 345      
Building and Improvements 272      
Total Investment in Real Estate 617      
Accumulated Depreciation and Amortization $ 25      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Lansing One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 488,000      
Land 78,000      
Building and Improvements 410,000      
Total Investment in Real Estate 488,000      
Accumulated Depreciation and Amortization $ 36,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Lansing Two [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 916,000      
Land 190,000      
Building and Improvements 726,000      
Total Investment in Real Estate 916,000      
Accumulated Depreciation and Amortization 56,000      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Lansing Three [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company 3,230,000      
Land 852,000      
Building and Improvements 2,378,000      
Total Investment in Real Estate 3,230,000      
Accumulated Depreciation and Amortization $ 140,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Madison Heights One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Building and Improvements $ 1,568      
Accumulated Depreciation and Amortization 72      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Madison Heights Two [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company   $ 562,000    
Building and Improvements 524,000      
Accumulated Depreciation and Amortization 36,000      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Midland One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company 518,000      
Land 10,000      
Building and Improvements 508,000      
Total Investment in Real Estate 518,000      
Accumulated Depreciation and Amortization $ 37,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Midland Two [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 630,000      
Cost Capitalized Subsequent to Initial Investment 0      
Land 10,000      
Building and Improvements 620,000      
Total Investment in Real Estate 630,000      
Accumulated Depreciation and Amortization $ 44,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Oakland One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 562,000      
Land 107,000      
Building and Improvements 455,000      
Total Investment in Real Estate 562,000      
Accumulated Depreciation and Amortization $ 33,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Redford Township One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 560,000      
Land 44,000      
Building and Improvements 516,000      
Total Investment in Real Estate 560,000      
Accumulated Depreciation and Amortization $ 36,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Saginaw One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 523,000      
Land 124,000      
Building and Improvements 399,000      
Total Investment in Real Estate 523,000      
Accumulated Depreciation and Amortization $ 32,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Sterling Heights One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 555,000      
Land 170,000      
Building and Improvements 385,000      
Total Investment in Real Estate 555,000      
Accumulated Depreciation and Amortization $ 29,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Trenton [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 561,000      
Land 48,000      
Building and Improvements 513,000      
Total Investment in Real Estate 561,000      
Accumulated Depreciation and Amortization $ 36,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Warren [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 489,000      
Land 41,000      
Building and Improvements 448,000      
Total Investment in Real Estate 489,000      
Accumulated Depreciation and Amortization $ 32,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Wyoming One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 511,000      
Land 37,000      
Building and Improvements 474,000      
Total Investment in Real Estate 511,000      
Accumulated Depreciation and Amortization $ 34,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MICHIGAN [Member] | Zeeland [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 715,000      
Land 92,000      
Building and Improvements 623,000      
Total Investment in Real Estate 715,000      
Accumulated Depreciation and Amortization $ 48,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MINNESOTA [Member] | Maple Grove One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 4,233,000      
Land 955,000      
Building and Improvements 3,278,000      
Total Investment in Real Estate 4,233,000      
Accumulated Depreciation and Amortization $ 508,000      
Date of Initial Leasehold or Acquisition Investment 2019      
Accumulated Depreciation And Amortization Description [Member] | MISSOURI [Member] | Blue Springs One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 4,646,000      
Land 386,000      
Building and Improvements 4,260,000      
Total Investment in Real Estate 4,646,000      
Accumulated Depreciation and Amortization $ 555,000      
Date of Initial Leasehold or Acquisition Investment 2020      
Accumulated Depreciation And Amortization Description [Member] | MISSOURI [Member] | Blue Springs Two [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 5,065,000      
Land 354,000      
Building and Improvements 4,711,000      
Total Investment in Real Estate 5,065,000      
Accumulated Depreciation and Amortization $ 592,000      
Date of Initial Leasehold or Acquisition Investment 2020      
Accumulated Depreciation And Amortization Description [Member] | MISSOURI [Member] | Independence [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 5,109,000      
Land 600,000      
Building and Improvements 4,509,000      
Total Investment in Real Estate 5,109,000      
Accumulated Depreciation and Amortization $ 577,000      
Date of Initial Leasehold or Acquisition Investment 2020      
Accumulated Depreciation And Amortization Description [Member] | MISSOURI [Member] | Kansas City [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 3,863,000      
Land 366,000      
Building and Improvements 3,497,000      
Total Investment in Real Estate 3,863,000      
Accumulated Depreciation and Amortization $ 446,000      
Date of Initial Leasehold or Acquisition Investment 2020      
Accumulated Depreciation And Amortization Description [Member] | MISSOURI [Member] | Kansas City One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 4,982,000      
Land 609,000      
Building and Improvements 4,373,000      
Total Investment in Real Estate 4,982,000      
Accumulated Depreciation and Amortization $ 531,000      
Date of Initial Leasehold or Acquisition Investment 2020      
Accumulated Depreciation And Amortization Description [Member] | MISSOURI [Member] | Parkville        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 4,636,000      
Land 317,000      
Building and Improvements 4,319,000      
Total Investment in Real Estate 4,636,000      
Accumulated Depreciation and Amortization $ 521,000      
Date of Initial Leasehold or Acquisition Investment 2020      
Accumulated Depreciation And Amortization Description [Member] | MISSOURI [Member] | Raymore [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 3,582,000      
Land 570,000      
Building and Improvements 3,012,000      
Total Investment in Real Estate 3,582,000      
Accumulated Depreciation and Amortization $ 398,000      
Date of Initial Leasehold or Acquisition Investment 2020      
Accumulated Depreciation And Amortization Description [Member] | MISSOURI [Member] | Summit [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,503,000      
Land 351,000      
Building and Improvements 1,152,000      
Total Investment in Real Estate 1,503,000      
Accumulated Depreciation and Amortization $ 57,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MONTSERRAT | Hattiesburg [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,760,000      
Land 850,000      
Building and Improvements 910,000      
Total Investment in Real Estate 1,760,000      
Accumulated Depreciation and Amortization $ 71,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | MONTSERRAT | Hattiesburg One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 2,143,000      
Land 1,258,000      
Building and Improvements 885,000      
Total Investment in Real Estate 2,143,000      
Accumulated Depreciation and Amortization $ 63,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Indian Trail [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 4,582,000      
Land 3,069,000      
Building and Improvements 1,513,000      
Total Investment in Real Estate 4,582,000      
Accumulated Depreciation and Amortization $ 88,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Angier [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,390,000      
Land 93,000      
Building and Improvements 1,297,000      
Total Investment in Real Estate 1,390,000      
Accumulated Depreciation and Amortization $ 5,000      
Date of Initial Leasehold or Acquisition Investment 2022      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Candler [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,290,000      
Land 82,000      
Building and Improvements 1,208,000      
Total Investment in Real Estate 1,290,000      
Accumulated Depreciation and Amortization $ 4,000      
Date of Initial Leasehold or Acquisition Investment 2022      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Cary [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,939,000      
Land 1,292,000      
Building and Improvements 647,000      
Total Investment in Real Estate 1,939,000      
Accumulated Depreciation and Amortization $ 46,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Charlotte [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,967,000      
Land 1,457,000      
Building and Improvements 510,000      
Total Investment in Real Estate 1,967,000      
Accumulated Depreciation and Amortization $ 31,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Charlotte One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 5,194,000      
Land 3,670,000      
Building and Improvements 1,524,000      
Total Investment in Real Estate 5,194,000      
Accumulated Depreciation and Amortization $ 90,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Fayetteville One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 986,000      
Land 509,000      
Building and Improvements 477,000      
Total Investment in Real Estate 986,000      
Accumulated Depreciation and Amortization $ 119,000      
Date of Initial Leasehold or Acquisition Investment 2018      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Franklin [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,275,000      
Land 62,000      
Building and Improvements 1,213,000      
Total Investment in Real Estate 1,275,000      
Accumulated Depreciation and Amortization $ 4,000      
Date of Initial Leasehold or Acquisition Investment 2022      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Greensboro [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 3,857,000      
Land 969,000      
Building and Improvements 2,888,000      
Total Investment in Real Estate 3,857,000      
Accumulated Depreciation and Amortization $ 467,000      
Date of Initial Leasehold or Acquisition Investment 2020      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Henderson One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,356,000      
Land 774,000      
Building and Improvements 582,000      
Total Investment in Real Estate 1,356,000      
Accumulated Depreciation and Amortization $ 44,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Henderson Two [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 2,680,000      
Land 1,918,000      
Building and Improvements 762,000      
Total Investment in Real Estate 2,680,000      
Accumulated Depreciation and Amortization $ 47,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Hickory [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 2,884,000      
Land 702,000      
Building and Improvements 2,182,000      
Total Investment in Real Estate 2,884,000      
Accumulated Depreciation and Amortization $ 8,000      
Date of Initial Leasehold or Acquisition Investment 2022      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | High Point [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,155,000      
Land 368,000      
Building and Improvements 787,000      
Total Investment in Real Estate 1,155,000      
Accumulated Depreciation and Amortization $ 113,000      
Date of Initial Leasehold or Acquisition Investment 2020      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Indian Trail One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 5,895,000      
Land 4,807,000      
Building and Improvements 1,088,000      
Total Investment in Real Estate 5,895,000      
Accumulated Depreciation and Amortization $ 63,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Jacksonville One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,272,000      
Land 268,000      
Building and Improvements 1,004,000      
Total Investment in Real Estate 1,272,000      
Accumulated Depreciation and Amortization $ 4,000      
Date of Initial Leasehold or Acquisition Investment 2022      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Kannapolis One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 3,791,000      
Land 616,000      
Building and Improvements 3,175,000      
Total Investment in Real Estate 3,791,000      
Accumulated Depreciation and Amortization $ 609,000      
Date of Initial Leasehold or Acquisition Investment 2019      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Lexington One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,316,000      
Land 154,000      
Building and Improvements 1,162,000      
Total Investment in Real Estate 1,316,000      
Accumulated Depreciation and Amortization $ 4,000      
Date of Initial Leasehold or Acquisition Investment 2022      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Lexington Two [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,317,000      
Land 144,000      
Building and Improvements 1,173,000      
Total Investment in Real Estate 1,317,000      
Accumulated Depreciation and Amortization $ 4,000      
Date of Initial Leasehold or Acquisition Investment 2022      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Lexington Three [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,776,000      
Land 301,000      
Building and Improvements 1,475,000      
Total Investment in Real Estate 1,776,000      
Accumulated Depreciation and Amortization $ 330,000      
Date of Initial Leasehold or Acquisition Investment 2017      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Lincolnton [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,392,000      
Land 206,000      
Building and Improvements 1,186,000      
Total Investment in Real Estate 1,392,000      
Accumulated Depreciation and Amortization $ 4,000      
Date of Initial Leasehold or Acquisition Investment 2022      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Monroe One        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,886,000      
Land 1,232,000      
Building and Improvements 654,000      
Total Investment in Real Estate 1,886,000      
Accumulated Depreciation and Amortization $ 39,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Morganton [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,391,000      
Land 155,000      
Building and Improvements 1,236,000      
Total Investment in Real Estate 1,391,000      
Accumulated Depreciation and Amortization $ 4,000      
Date of Initial Leasehold or Acquisition Investment 2022      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Nashville [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 4,025,000      
Land 2,378,000      
Building and Improvements 1,647,000      
Total Investment in Real Estate 4,025,000      
Accumulated Depreciation and Amortization $ 103,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Oxford [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,529,000      
Land 309,000      
Building and Improvements 1,220,000      
Total Investment in Real Estate 1,529,000      
Accumulated Depreciation and Amortization $ 73,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Raleigh [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 1,601,000      
Land 1,149,000      
Building and Improvements 452,000      
Total Investment in Real Estate 1,601,000      
Accumulated Depreciation and Amortization $ 96,000      
Date of Initial Leasehold or Acquisition Investment 2019      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Raleigh One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 2,929,000      
Land 2,457,000      
Building and Improvements 472,000      
Total Investment in Real Estate 2,929,000      
Accumulated Depreciation and Amortization $ 31,000      
Date of Initial Leasehold or Acquisition Investment 2021      
Accumulated Depreciation And Amortization Description [Member] | NORTH CAROLINA [Member] | Rockingham One [Member]        
Schedule Of Investments In Real Estate [Line Items]        
Initial Cost of Leasehold or Acquisition Investment to Company $ 3,035,000      
Land 233,000      
Building and Improvements 2,802,000      
Total Investment in Real Estate 3,035,000      
Accumulated Depreciation and Amortization $ 510,000      
Date of Initial Leasehold or Acquisition Investment 2019