Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets
Fixed maturities, amortized cost	$ 442,578	$ 455,385
Equity securities, cost	80,221	78,778
Limited partnerships,affiliated	45,009	46,987
Account receivable, allowance	600	605
Property and equipment, accumulated depreciation	$ 14,768	$ 13,777
Class A (voting) [Member]
Shareholders' equity:
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	3,000,000	3,000,000
Common stock, shares outstanding (in shares)	2,623,109	2,623,109
Class B (non-voting) [Member]
Shareholders' equity:
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, shares outstanding (in shares)	12,402,941	12,356,389