Balance Sheet Parenthetical - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Investments available for sale:
Available-for-sale Debt Securities, Amortized Cost Basis	$ 185,763,176	$ 188,634,364
Equity securities, cost	41,696,686	39,275,638
Trading securities, cost	0	5,179,850
Liabilities:
Trading Securities, Proceeds	$ 95,986	$ 464,215
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)	3,705,263	3,706,780