CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets [Abstract]
Debt securities, available-for-sale, at amortized cost	$ 512,645	$ 433,664
Premiums receivable, allowance	159	77
Liabilities and Equity [Abstract]
Debt issuance costs, net	$ 1,478	$ 596
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	1,000,000	1,000,000
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	25,000,000	25,000,000
Common Stock, Shares, Issued	14,414,821	12,784,444
Common Stock, Shares, Outstanding	14,414,821	12,784,444