CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Investments:
Debt securities, available-for-sale at amortized cost	$ 356,199	$ 338,021
Equity securities, available-for-sale at cost	34,565	33,581
Premiums receivable, allowance for credit losses	$ 123	$ 302
SHAREHOLDERS' EQUITY:
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)	25,000,000	25,000,000
Common stock, shares issued (in shares)	13,782,911	13,798,773
Common stock, shares outstanding (in shares)	13,782,911	13,798,773