FAIR VALUE (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Debt securities	$ 365,364	$ 339,178
Equity securities, available-for-sale, at fair value	40,601	38,534
United States Government Obligations and Authorities [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	65,242	61,553
Obligations of States and Political Subdivisions [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	139,685	110,702
Corporate [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	148,596	154,620
International [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	11,841	12,303
Recurring [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	365,364	339,178
Equity securities, available-for-sale, at fair value	40,601	38,534
Total investments	405,965	377,712
Recurring [Member] | United States Government Obligations and Authorities [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	65,242	61,553
Recurring [Member] | Obligations of States and Political Subdivisions [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	139,685	110,702
Recurring [Member] | Corporate [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	148,597	154,620
Recurring [Member] | International [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	11,840	12,303
Recurring [Member] | Level 1 [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	37,442	34,733
Equity securities, available-for-sale, at fair value	39,601	38,012
Total investments	77,043	72,745
Recurring [Member] | Level 1 [Member] | United States Government Obligations and Authorities [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	37,442	34,733
Recurring [Member] | Level 1 [Member] | Obligations of States and Political Subdivisions [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	0	0
Recurring [Member] | Level 1 [Member] | Corporate [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	0	0
Recurring [Member] | Level 1 [Member] | International [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	0	0
Recurring [Member] | Level 2 [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	327,922	304,445
Equity securities, available-for-sale, at fair value	1,000	522
Total investments	328,922	304,967
Recurring [Member] | Level 2 [Member] | United States Government Obligations and Authorities [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	27,800	26,820
Recurring [Member] | Level 2 [Member] | Obligations of States and Political Subdivisions [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	139,685	110,702
Recurring [Member] | Level 2 [Member] | Corporate [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	148,597	154,620
Recurring [Member] | Level 2 [Member] | International [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	11,840	12,303
Recurring [Member] | Level 3 [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	0	0
Equity securities, available-for-sale, at fair value	0	0
Total investments	0	0
Recurring [Member] | Level 3 [Member] | United States Government Obligations and Authorities [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	0	0
Recurring [Member] | Level 3 [Member] | Obligations of States and Political Subdivisions [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	0	0
Recurring [Member] | Level 3 [Member] | Corporate [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	0	0
Recurring [Member] | Level 3 [Member] | International [Member]
Investments, Debt and Equity Securities [Abstract]
Debt securities	$ 0	$ 0