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Summary of Significant Accounting and Reporting Policies (Schedule of Amortized Cost, Unrealized Gains And Losses, And Market Value Of Investment Securities) (Details) (USD $) | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Cost | $ 77,055,612 | $ 179,388,001
Gross Unrealized Gains | 29,998,513 | 23,937,617
Gross Unrealized Losses | (48,603) | (688,728)
Market Value | 107,005,522 | 202,636,890
Certificate of Deposit |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost |  | 510,881
Gross Unrealized Gains |  | 0
Gross Unrealized Losses |  | 0
Market Value |  | 510,881
Government Securities |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost |  | 38,514,411
Gross Unrealized Gains |  | 9,004
Gross Unrealized Losses |  | (944)
Market Value |  | 38,522,471
U.S. Treasury Notes |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost |  | 15,018,810
Gross Unrealized Gains |  | 2,602
Gross Unrealized Losses |  | (1,062)
Market Value |  | 15,020,350
Corporate Bonds |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost |  | 6,529,758
Gross Unrealized Gains |  | 33,470
Gross Unrealized Losses |  | 0
Market Value |  | 6,563,228
Other |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost |  | 185,926
Gross Unrealized Gains |  | 0
Gross Unrealized Losses |  | 0
Market Value |  | 185,926
Corporate Bonds |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost |  | 2,174,948
Gross Unrealized Gains |  | 5,832
Gross Unrealized Losses |  | 0
Market Value |  | 2,180,780
Common Stocks |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost | 22,799,035 | 40,893,121
Gross Unrealized Gains | 10,532,007 | 12,781,501
Gross Unrealized Losses | (48,603) | (391,421)
Market Value | 33,282,439 | 53,283,201
Mutual Funds – Equity |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost | 54,256,577 | 75,321,640
Gross Unrealized Gains | 19,466,506 | 11,082,714
Gross Unrealized Losses | 0 | (295,301)
Market Value | 73,723,083 | 86,109,053
Other – Equity |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Cost |  | 238,506
Gross Unrealized Gains |  | 22,494
Gross Unrealized Losses |  | 0
Market Value |  | $ 261,000

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