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Investment Securities - Available for Sale (Details) $ in Thousands | Sep. 30, 2019 USD ($) security | Dec. 31, 2018 USD ($) security | Sep. 30, 2018 USD ($) security
--- | --- | --- | ---
Available-For-Sale Securities |  |  |
Available-For-Sale Securities, at Amortized Cost | $ 313,342 | $ 322,491 | $ 347,916
Available-for-Sale | 314,182 | 317,535 | 340,411
Gross Unrealized Gains | 1,535 | 290 | 204
Gross Unrealized Losses | 695 | 5,246 | 7,709
Maturities of Debt Securities, at Amortized Cost: |  |  |
Within One Year | 307 |  |
From 1 - 5 Years | 189,504 |  |
From 5 - 10 Years | 84,036 |  |
Over 10 Years | 39,495 |  |
Maturities of Debt Securities, at Fair Value: |  |  |
Within One Year | 309 |  |
From 1 - 5 Years | 190,552 |  |
From 5 - 10 Years | 84,013 |  |
Over 10 Years | 39,308 |  |
Securities in a Continuous Loss Position, at Fair Value: |  |  |
Less than 12 Months | 4,763 | 107,550 | 173,669
12 Months or Longer | 115,283 | 172,192 | 127,004
Total | $ 120,046 | $ 279,742 | $ 300,673
Number of Securities in a Continuous Loss Position | security | 49 | 97 | 110
Unrealized Losses on Securities in a Continuous Loss Position: |  |  |
Less than 12 Months | $ 70 | $ 841 | $ 3,358
12 Months or Longer | 625 | 4,405 | 4,351
Total | 695 | 5,246 | 7,709
Collateral Pledged |  |  |
Available-For-Sale Securities |  |  |
Available-For-Sale Securities, Pledged as Collateral | 232,043 | 236,163 | 219,587
U.S. Government & Agency Obligations |  |  |
Available-For-Sale Securities |  |  |
Available-For-Sale Securities, at Amortized Cost | 5,003 | 47,071 | 60,135
Available-for-Sale | 5,056 | 46,765 | 59,602
Gross Unrealized Gains | 53 | 0 | 0
Gross Unrealized Losses | 0 | 306 | 533
Maturities of Debt Securities, at Amortized Cost: |  |  |
Within One Year | 0 |  |
From 1 - 5 Years | 5,003 |  |
From 5 - 10 Years | 0 |  |
Over 10 Years | 0 |  |
Maturities of Debt Securities, at Fair Value: |  |  |
Within One Year | 0 |  |
From 1 - 5 Years | 5,056 |  |
From 5 - 10 Years | 0 |  |
Over 10 Years | 0 |  |
Securities in a Continuous Loss Position, at Fair Value: |  |  |
Less than 12 Months | 0 | 0 | 4,831
12 Months or Longer | 0 | 46,765 | 54,771
Total | $ 0 | $ 46,765 | $ 59,602
Number of Securities in a Continuous Loss Position | security | 0 | 10 | 14
Unrealized Losses on Securities in a Continuous Loss Position: |  |  |
Less than 12 Months | $ 0 | $ 0 | $ 193
12 Months or Longer | 0 | 306 | 340
Total | 0 | 306 | 533
U.S. Government & Agency Obligations | US Treasury Securities |  |  |
Available-For-Sale Securities |  |  |
Available-For-Sale Securities, at Amortized Cost | 0 | 0 | 0
Available-for-Sale | 0 | 0 | 0
U.S. Government & Agency Obligations | Agency Securities |  |  |
Available-For-Sale Securities |  |  |
Available-For-Sale Securities, at Amortized Cost | 5,003 | 47,071 | 60,135
Available-for-Sale | 5,056 | 46,765 | 59,602
State and Municipal Obligations |  |  |
Available-For-Sale Securities |  |  |
Available-For-Sale Securities, at Amortized Cost | 965 | 1,193 | 2,545
Available-for-Sale | 965 | 1,195 | 2,548
Gross Unrealized Gains | 0 | 2 | 3
Gross Unrealized Losses | 0 | 0 | 0
Maturities of Debt Securities, at Amortized Cost: |  |  |
Within One Year | 226 |  |
From 1 - 5 Years | 299 |  |
From 5 - 10 Years | 0 |  |
Over 10 Years | 440 |  |
Maturities of Debt Securities, at Fair Value: |  |  |
Within One Year | 227 |  |
From 1 - 5 Years | 299 |  |
From 5 - 10 Years | 0 |  |
Over 10 Years | 439 |  |
Securities in a Continuous Loss Position, at Fair Value: |  |  |
Less than 12 Months | 0 | 0 | 1,120
12 Months or Longer | 0 | 0 | 0
Total | $ 0 | $ 0 | $ 1,120
Number of Securities in a Continuous Loss Position | security | 0 | 0 | 5
Unrealized Losses on Securities in a Continuous Loss Position: |  |  |
Less than 12 Months | $ 0 | $ 0 | $ 0
12 Months or Longer | 0 | 0 | 0
Total | 0 | 0 | 0
Mortgage- Backed Securities |  |  |
Available-For-Sale Securities |  |  |
Available-For-Sale Securities, at Amortized Cost | 306,374 | 273,227 | 284,236
Available-for-Sale | 307,361 | 268,775 | 277,461
Gross Unrealized Gains | 1,482 | 288 | 201
Gross Unrealized Losses | 495 | 4,740 | 6,976
Maturities of Debt Securities, at Amortized Cost: |  |  |
Within One Year | 81 |  |
From 1 - 5 Years | 184,202 |  |
From 5 - 10 Years | 84,036 |  |
Over 10 Years | 38,055 |  |
Maturities of Debt Securities, at Fair Value: |  |  |
Within One Year | 82 |  |
From 1 - 5 Years | 185,197 |  |
From 5 - 10 Years | 84,013 |  |
Over 10 Years | 38,069 |  |
Securities in a Continuous Loss Position, at Fair Value: |  |  |
Less than 12 Months | 4,763 | 107,550 | 167,718
12 Months or Longer | 114,483 | 124,627 | 71,433
Total | $ 119,246 | $ 232,177 | $ 239,151
Number of Securities in a Continuous Loss Position | security | 48 | 86 | 90
Unrealized Losses on Securities in a Continuous Loss Position: |  |  |
Less than 12 Months | $ 70 | $ 841 | $ 3,165
12 Months or Longer | 425 | 3,899 | 3,811
Total | 495 | 4,740 | 6,976
Mortgage- Backed Securities | US Government Agencies Debt Securities |  |  |
Available-For-Sale Securities |  |  |
Available-For-Sale Securities, at Amortized Cost | 64,455 | 72,095 | 74,160
Available-for-Sale | 64,364 | 71,800 | 74,098
Mortgage- Backed Securities | US Government-sponsored Enterprises Debt Securities |  |  |
Available-For-Sale Securities |  |  |
Available-For-Sale Securities, at Amortized Cost | 241,919 | 201,132 | 210,076
Available-for-Sale | 242,997 | 196,975 | 203,363
Corporate and Other Debt Securities |  |  |
Available-For-Sale Securities |  |  |
Available-For-Sale Securities, at Amortized Cost | 1,000 | 1,000 | 1,000
Available-for-Sale | 800 | 800 | 800
Gross Unrealized Gains | 0 | 0 | 0
Gross Unrealized Losses | 200 | 200 | 200
Maturities of Debt Securities, at Amortized Cost: |  |  |
Within One Year | 0 |  |
From 1 - 5 Years | 0 |  |
From 5 - 10 Years | 0 |  |
Over 10 Years | 1,000 |  |
Maturities of Debt Securities, at Fair Value: |  |  |
Within One Year | 0 |  |
From 1 - 5 Years | 0 |  |
From 5 - 10 Years | 0 |  |
Over 10 Years | 800 |  |
Securities in a Continuous Loss Position, at Fair Value: |  |  |
Less than 12 Months | 0 | 0 | 0
12 Months or Longer | 800 | 800 | 800
Total | $ 800 | $ 800 | $ 800
Number of Securities in a Continuous Loss Position | security | 1 | 1 | 1
Unrealized Losses on Securities in a Continuous Loss Position: |  |  |
Less than 12 Months | $ 0 | $ 0 | $ 0
12 Months or Longer | 200 | 200 | 200
Total | $ 200 | $ 200 | $ 200

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