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Investment Portfolio - Equity Method Investments (Details)
 3 Months Ended 6 Months Ended
Jun. 30, 2017
USD ($)
Jun. 30, 2017
USD ($)
Investments, Debt and Equity Securities [Abstract]    
Total assets $ 129,172,742 $ 129,172,742
Total liabilities 34,386,878 34,386,878
Net assets 94,785,864 94,785,864
DHCM's portion of net assets 28,514,426 28,514,426
Investment Income 727,295 1,521,561
Expenses 281,612 565,202
Net realized gains (losses) 1,605,052 2,571,725
Net change in unrealized appreciation/depreciation 1,100,299 3,614,185
Net income 3,151,034 7,142,269
DHCM's portion of net income $ 942,574 $ 2,048,339