| Contributions | 
          | 
        $52,916 | 
          | 
        $52,916 | 
      
      
        | Investment income, net  | 
        $1,549,796  | 
        $884,239  | 
          | 
        $2,434,035  | 
      
      
        | Beneficial Trust Income  | 
          | 
        $56,975  | 
          | 
        $56,975  | 
      
      
        | Net realized and unrealized gains  | 
        $12,809,132  | 
        $10,001,305  | 
          | 
        $22,810,437  | 
      
      
        | Unrealized gain (loss) on interest in perpetual trust  | 
          | 
          | 
        $92,737  | 
        $92,737  | 
      
      
        |   | 
        $14,358,928  | 
        $10,995,435  | 
        $92,737  | 
        $25,447,100  | 
      
      
        |   | 
      
      
        | Net assets released from restrictions  | 
        $706,232  | 
        ($706,232) | 
          | 
          | 
      
      
        |   | 
      
      
        | Total Revenues and Other Support | 
        $15,065,160 | 
        $10,289,203 | 
        $92,737 | 
        $25,447,100 | 
      
      
        |   | 
      
      
      
        | Grants and distributions  | 
        $5,763,163 | 
          | 
          | 
        $5,763,163 | 
      
      
        |   | 
      
      
      
        | Salaries | 
        $733,988  | 
          | 
          | 
        $733,988  | 
      
      
        | Purchased Services | 
        $111,140 | 
          | 
          | 
        $111,140 | 
      
      
        | Employee Benefits | 
        $231,802  | 
          | 
          | 
        $231,802  | 
      
      
        | Supplies and Office Expenses | 
        $69,518  | 
          | 
          | 
        $69,518  | 
      
      
        | Payroll Taxes | 
        $44,727  | 
          | 
          | 
        $44,727  | 
      
      
        | Other Expenses | 
        $26,409  | 
          | 
          | 
        $26,409  | 
      
      
        | Depreciation | 
        $1,733  | 
          | 
          | 
        $1,733  | 
      
      
        | Total Administrative and General Expenses | 
        $1,219,317 | 
          | 
          | 
        $1,219,317 | 
      
      
        |   | 
      
      
        | Total Expenses | 
        $6,982,480  | 
          | 
          | 
        $6,982,480  | 
      
      
        |   | 
      
      
        | Change in Net Assets | 
        $8,082,680 | 
        $10,289,203 | 
        $92,737 | 
        $18,464,620 | 
      
      
        |   | 
      
      
        | Net Assets (Beginning of the Year) | 
        $73,033,330 | 
        $49,498,535 | 
        $6,021,903 | 
        $128,553,768 | 
      
      
        |   | 
      
      
        | Reclassification of Net Assets | 
        $94,296 | 
        ($94,296) | 
          | 
          | 
      
      
        |   | 
      
      
        | Net Assets (End of the Year) | 
        $81,210,306 | 
        $59,693,442 | 
        $6,114,640 | 
        $147,018,388 |