VARIABLE INTEREST ENTITY (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Investments [Abstract]
Debt securities, available for sale, at amortized cost	$ 356,199	$ 338,021
Equity securities, available-for-sale, at fair value	40,601	38,534
Total investments	411,870	384,331
Cash and cash equivalents	80,073	53,038	$ 96,322	$ 40,157
Prepaid reinsurance premiums	109,809	120,771
Premiums receivable, net	58,063	38,594
Income taxes receivable	8,687	2,691
Deferred acquisition costs	21,287	15,547
Other assets	7,918	7,605
TOTAL ASSETS	721,614	638,185
LIABILITIES [Abstract]
Loss and loss adjustment expense reserves	120,723	97,340		$ 78,330
Unearned premiums	295,769	253,960
Debt	4,898	4,887
Other liabilities	28,824	25,612
Total liabilities	455,934	387,426
Variable Interest Entity (VIE) [Member]
Investments [Abstract]
Debt securities, available for sale, at amortized cost	22,303	21,312
Equity securities, available-for-sale, at fair value	1,529	1,358
Total investments	23,832	22,670
Cash and cash equivalents	16,289	14,616
Prepaid reinsurance premiums	0	34
Premiums receivable, net	1,155	355
Deferred income taxes	5	646
Income taxes receivable	0	0
Deferred acquisition costs	645	234
Other assets	0	157
TOTAL ASSETS	41,926	38,712
LIABILITIES [Abstract]
Loss and loss adjustment expense reserves	407	237
Unearned premiums	3,736	1,448
Debt	4,898	4,887
Income taxes payable	0	8
Other liabilities	237	374
Total liabilities	$ 9,278	$ 6,954