CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Investments:
Debt securities, available-for-sale, at amortized cost	$ 439,254	$ 433,664
Total investments (including $0,000 and $26,284 related to the VIE, respectively)	468,834	451,525
Premiums receivable, allowance for doubtful accounts	67	77
Deferred financing costs	$ 1,599	$ 596
Shareholders' Equity
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 (in shares)	12,836,401	12,784,444
Common Stock, Shares, Outstanding	12,836,401	12,784,444