CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets [Abstract]
Debt securities, available-for-sale, at amortized cost	$ 324,861	$ 473,126
Premiums receivable, allowance	125	233
Reinsurance recoverable, allowance for credit loss	249	65
Liabilities and Equity [Abstract]
Debt issuance costs, net	$ 2,195	$ 1,317
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock shares authorized (in shares)	1,000,000	1,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares, issued (in shares)	17,446,930	13,717,908
Common stock, shares, outstanding (in shares)	17,446,930	13,717,908