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INCOME TAXES: (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Federal: |  |  |
Currently payable | $ 7,018 | $ 8,303 | $ 15,514
Deferred | 1,793 | 3,756 | 1,326
Federal tax reform | 0 | 6,282 |
Federal income tax expense (benefit), continuing operations | 8,811 | 18,341 | 16,840
State: |  |  |
Currently payable | 1,699 | 1,818 | 2,857
Deferred | 635 | 463 | 186
State and local income tax expense (benefit), continuing operations | 2,334 | 2,281 | 3,043
TOTAL | $ 11,145 | $ 20,622 | $ 19,883

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