Balance Sheet Parenthetical - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Investments available for sale:
Available-for-sale Debt Securities, Amortized Cost Basis	$ 186,619,178	$ 188,647,671
Equity securities, cost	43,996,049	43,954,737
Trading securities, cost	0	0
Liabilities:
Trading Securities, Proceeds	$ 108,881	$ 108,881
Shareholders' equity:
Common stock, stated value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized (in shares)	7,000,000	7,000,000
Common stock, outstanding (in shares)	3,673,937	3,699,447