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FAIR VALUE MEASUREMENTS AFS (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Available for Sale: |  |
Amortized Cost | $ 165,278 | $ 135,449
Fair Value | 164,183 | 134,501
Unrealized Losses | (1,095) | (948)
Municipal bonds |  |
Available for Sale: |  |
Amortized Cost | 16,046 | 34,021
Fair Value | 15,206 | 33,977
Unrealized Losses | (840) | (44)
Variable rate demand notes |  |
Available for Sale: |  |
Amortized Cost | 19,700 |
Fair Value | 19,700 |
Corporate bonds |  |
Available for Sale: |  |
Amortized Cost | 122,568 | 95,286
Fair Value | 122,298 | 94,403
Unrealized Losses | (270) | (883)
Government securities |  |
Available for Sale: |  |
Amortized Cost | 2,411 | 2,430
Fair Value | 2,426 | 2,430
Unrealized Gains | 15 |
Certificates of deposit |  |
Available for Sale: |  |
Amortized Cost | 4,553 | 3,692
Fair Value | $ 4,553 | 3,676
Unrealized Losses |  | (16)
Mutual funds |  |
Available for Sale: |  |
Amortized Cost |  | 20
Fair Value |  | 15
Unrealized Losses |  | $ (5)

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