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INVESTMENTS (Major Categories of Investment Gains and Losses) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Gain (Loss) on Investments [Line Items]    
Other-than-temporary impairments $ (16) $ 0
Net investment gains (losses) (178) 234
Fixed maturities    
Gain (Loss) on Investments [Line Items]    
Net investment gains (losses) 128 58
Equity securities    
Gain (Loss) on Investments [Line Items]    
Net investment gains (losses) 0 174
Change in fair value of equity securities    
Gain (Loss) on Investments [Line Items]    
Net investment gains (losses) (203) 0
Other, principally real estate    
Gain (Loss) on Investments [Line Items]    
Net investment gains (losses) $ (87) $ 2