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Investments (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012
Summary of investments |  |
Cost | $ 18,983,662 | $ 7,951,533
Gross Unrealized Gains | 560 | 83,868
Gross Unrealized Losses | (78,614) | (1,400)
Fair Market Value | 18,905,608 | 8,034,001
Mutual funds [Member] |  |
Summary of investments |  |
Cost | 18,178,518 | 7,500,063
Gross Unrealized Gains | 0 | 83,868
Gross Unrealized Losses | (78,614) | 0
Fair Market Value | 18,099,904 | 7,583,931
Certificates of deposit [Member] |  |
Summary of investments |  |
Cost |  | 250,000
Gross Unrealized Gains |  | 0
Gross Unrealized Losses |  | 0
Fair Market Value |  | 250,000
Municipal bonds [Member] |  |
Summary of investments |  |
Cost | 805,144 | 201,470
Gross Unrealized Gains | 560 | 0
Gross Unrealized Losses | 0 | (1,400)
Fair Market Value | $ 805,704 | $ 200,070
Maximum [Member] | Certificates of deposit [Member] |  |
Summary of investments |  |
Contractual Maturity (less than 1 year) |  | 1 year
Maximum [Member] | Municipal bonds [Member] |  |
Summary of investments |  |
Contractual Maturity (less than 1 year) | 1 year | 1 year

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