Consolidated Balance Sheet (Unaudited) (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets [Abstract]
Fixed-maturity securities available-for-sale - amortized cost	$ 1,074,618	$ 1,031,817
Equity securities - cost	$ 102,041	$ 98,758
Stockholders' Equity
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	400,000,000	400,000,000
Common stock, shares issued (in shares)	22,811,929	22,757,251
Common stock, shares outstanding (in shares)	22,811,929	22,757,251