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FAIR VALUE MEASUREMENTS: AFS (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Available for Sale: |  |
Amortized Cost | $ 135,449 | $ 131,868
Fair Value | 134,501 | 131,347
Unrealized Gains |  | 7
Unrealized Losses | (948) | (528)
Municipal bonds |  |
Available for Sale: |  |
Amortized Cost | 34,021 | 51,797
Fair Value | 33,977 | 51,804
Unrealized Gains |  | 7
Unrealized Losses | (44) |
Corporate bonds |  |
Available for Sale: |  |
Amortized Cost | 95,286 | 72,587
Fair Value | 94,403 | 72,075
Unrealized Losses | (883) | (512)
Government securities |  |
Available for Sale: |  |
Amortized Cost | 2,430 | 2,450
Fair Value | 2,430 | 2,446
Unrealized Losses |  | (4)
Certificates of deposit |  |
Available for Sale: |  |
Amortized Cost | 3,692 | 5,014
Fair Value | 3,676 | 5,007
Unrealized Losses | (16) | (7)
Mutual funds |  |
Available for Sale: |  |
Amortized Cost | 20 | 20
Fair Value | 15 | 15
Unrealized Losses | $ (5) | $ (5)

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