Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Assets
Fixed maturities, amortized cost	$ 600,504	$ 521,017
Limited partnerships, affiliated	32,028	43,586
Account receivable, allowance	403	484
Property and equipment, accumulated depreciation	$ 19,531	$ 16,614
Class A Voting [Member]
Shareholders' equity:
Common stock, shares authorized (in shares)	3,000,000	3,000,000
Common stock, shares outstanding (in shares)	2,615,339	2,623,109
Class B Non-voting [Member]
Shareholders' equity:
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, shares outstanding (in shares)	12,253,922	12,423,518