FAIR VALUE (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Debt securities [Abstract]
Debt securities	$ 339,245	$ 339,178
Equity securities	40,830	38,534
Recurring [Member]
Debt securities [Abstract]
United States government obligations and authorities	53,473	61,553
Obligations of states and political subdivisions	124,310	110,702
Corporate	148,926	154,620
International	12,536	12,303
Debt securities	339,245	339,178
Equity securities	40,830	38,534
Total investments	380,075	377,712
Recurring [Member] \| Level 1 [Member]
Debt securities [Abstract]
United States government obligations and authorities	26,578	34,733
Obligations of states and political subdivisions	0	0
Corporate	0	0
International	0	0
Debt securities	26,578	34,733
Equity securities	38,302	38,012
Total investments	64,880	72,745
Recurring [Member] \| Level 2 [Member]
Debt securities [Abstract]
United States government obligations and authorities	26,895	26,820
Obligations of states and political subdivisions	124,310	110,702
Corporate	148,926	154,620
International	12,536	12,303
Debt securities	312,667	304,445
Equity securities	2,528	522
Total investments	315,195	304,967
Recurring [Member] \| Level 3 [Member]
Debt securities [Abstract]
United States government obligations and authorities	0	0
Obligations of states and political subdivisions	0	0
Corporate	0	0
International	0	0
Debt securities	0	0
Equity securities	0	0
Total investments	$ 0	$ 0

No definition available.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt which are categorized as Available-for-sale.

+ References

No definition available.

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
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- Definition

Amount of debt securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
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-Subparagraph (b)
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- Definition

Amount of equity securities categorized neither as held-to-maturity nor as trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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- Definition

The fair value as of the balance sheet date of firm holdings in fixed income or other debt securities issued by a corporation or other issuer not elsewhere specified in the taxonomy. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.

+ References

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- Definition

The fair value as of the balance sheet date of firm holdings in fixed income obligations issued by state and local governments and authorities. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.

+ References

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- Definition

The fair value as of the balance sheet date of firm holdings in debt obligations issued by the US government including short-term Treasury bills, medium-term Treasury notes, and long-term Treasury bonds, as well as debt issued by agencies. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.

+ References

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