Consolidated Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Investments available for sale:
Fixed maturities, amortized cost	$ 159,912,511	$ 170,595,860
Equity securities, cost	35,712,633	37,014,712
Trading securities, cost	0	70,690
Liabilities:
Trading securities, proceeds	$ 0	$ 181,159
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, issued (in shares)	3,333,377	3,349,927
Common stock, outstanding (in shares)	3,333,377	3,349,927