SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - AOCI Components (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Details about AOCI Components
Investment income	$ (466)	$ (222)
Reclassification Out Of Accumulated Other Comprehensive Income (Loss)
Details about AOCI Components
Investment income	17	3
Accumulated Net Unrealized Investment Gain Loss \| Reclassification Out Of Accumulated Other Comprehensive Income (Loss)
Details about AOCI Components
Investment income	$ 17	$ 3

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(b))
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 7
-Article 5

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Balance Type:	credit
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