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FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details 1) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Total realized/unrealized gains or losses |  |
Beginning balance, January 1 | $ 18,285 | $ 16,578
Included in earnings | 0 | 0
Included in other comprehensive income | (2,840) | 2,773
Purchases | 0 | 0
Settlements | (9,052) | (1,066)
Ending balance, December 31 | 6,393 | 18,285
State and municipal obligations |  |
Total realized/unrealized gains or losses |  |
Beginning balance, January 1 | 3,680 | 4,210
Included in earnings | 0 | 0
Included in other comprehensive income | 0 |
Purchases | 0 | 0
Settlements | (545) | (530)
Ending balance, December 31 | 3,135 | 3,680
Collateralized debt obligations |  |
Total realized/unrealized gains or losses |  |
Beginning balance, January 1 | 14,605 | 12,368
Included in earnings | 0 | 0
Included in other comprehensive income | (2,840) | 2,773
Settlements | (8,507) | (536)
Ending balance, December 31 | $ 3,258 | $ 14,605

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