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Securities (Details 4) $ in Thousands | Jun. 30, 2017 USD ($) Securities | Dec. 30, 2016 USD ($) Securities
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Estimated Fair Value, Less than 12 months | $ 74,257 | $ 112,980
Unrealized Losses, Less than 12 months | (1,190) | (2,195)
Estimated Fair Value, 12 months or longer | 5,105 | 4,696
Unrealized Losses, 12 months or longer | (1,961) | (2,670)
Estimated Fair Value, Total | 79,362 | 117,676
Unrealized Losses, Total | $ (3,151) | $ (4,865)
Number of securities, Unrealized Losses, Less than 12 months | Securities | 54 | 97
Number of securities, Unrealized Losses, 12 months or longer | Securities | 6 | 6
Number of securities, Unrealized Losses, Total | Securities | 60 | 103
U.S. government sponsored entities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Estimated Fair Value, Less than 12 months | $ 13,784 | $ 16,274
Unrealized Losses, Less than 12 months | (211) | (369)
Estimated Fair Value, 12 months or longer | 0 | 0
Unrealized Losses, 12 months or longer | 0 | 0
Estimated Fair Value, Total | 13,784 | 16,274
Unrealized Losses, Total | (211) | (369)
Collateralized mortgage obligations and residential mortgage-backed securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Estimated Fair Value, Less than 12 months | 55,259 | 75,931
Unrealized Losses, Less than 12 months | (850) | (1,183)
Estimated Fair Value, 12 months or longer | 2,099 | 2,287
Unrealized Losses, 12 months or longer | (81) | (90)
Estimated Fair Value, Total | 57,358 | 78,218
Unrealized Losses, Total | (931) | (1,273)
Collateralized Debt Obligations [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Estimated Fair Value, Less than 12 months | 0 | 0
Unrealized Losses, Less than 12 months | 0 | 0
Estimated Fair Value, 12 months or longer | 3,006 | 2,409
Unrealized Losses, 12 months or longer | (1,880) | (2,580)
Estimated Fair Value, Total | 3,006 | 2,409
Unrealized Losses, Total | (1,880) | (2,580)
Municipal securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Estimated Fair Value, Less than 12 months | 5,214 | 20,775
Unrealized Losses, Less than 12 months | (129) | (643)
Estimated Fair Value, 12 months or longer | 0 | 0
Unrealized Losses, 12 months or longer | 0 | 0
Estimated Fair Value, Total | 5,214 | 20,775
Unrealized Losses, Total | $ (129) | $ (643)

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