Accumulated Other Comprehensive Loss (Schedule of Accumulated Other Comprehensive Loss) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
12 Months Ended |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2016 |
| Beginning balance |
|
|
$ (21,465)
|
|
| Balance |
|
|
113,698
|
$ 120,771
|
| Ending balance |
$ (18,965)
|
|
|
(21,465)
|
| Balance |
120,838
|
|
|
113,698
|
| Investment securities- with OTTI [Member] |
|
|
|
|
| Balance |
(2,336)
|
$ (2,270)
|
(2,368)
|
(1,942)
|
| Other comprehensive income/(loss) before reclassifications |
245
|
(32)
|
100
|
(421)
|
| Amounts reclassified from accumulated other comprehensive income |
(33)
|
(34)
|
(2)
|
(5)
|
| Balance |
(2,124)
|
(2,336)
|
(2,270)
|
(2,368)
|
| Investment Securities -All Other AFS [Member] |
|
|
|
|
| Balance |
(1,432)
|
(3,140)
|
(3,218)
|
(2,024)
|
| Other comprehensive income/(loss) before reclassifications |
(51)
|
1,698
|
73
|
(929)
|
| Amounts reclassified from accumulated other comprehensive income |
12
|
10
|
5
|
(265)
|
| Balance |
(1,471)
|
(1,432)
|
(3,140)
|
(3,218)
|
| Investment Securities HTM [Member] |
|
|
|
|
| Balance |
(1,250)
|
(1,293)
|
(1,354)
|
(1,971)
|
| Other comprehensive income/(loss) before reclassifications |
0
|
0
|
0
|
0
|
| Amounts reclassified from accumulated other comprehensive income |
54
|
43
|
61
|
617
|
| Balance |
(1,196)
|
(1,250)
|
(1,293)
|
(1,354)
|
| Cash Flow Hedge (OCI) [Member] |
|
|
|
|
| Balance |
324
|
474
|
422
|
(39)
|
| Other comprehensive income/(loss) before reclassifications |
4
|
(150)
|
52
|
461
|
| Amounts reclassified from accumulated other comprehensive income |
0
|
0
|
0
|
0
|
| Balance |
328
|
324
|
474
|
422
|
| Pension Plan [Member] |
|
|
|
|
| Balance |
(14,036)
|
(14,038)
|
(14,232)
|
(12,663)
|
| Other comprehensive income/(loss) before reclassifications |
24
|
(158)
|
32
|
(2,086)
|
| Amounts reclassified from accumulated other comprehensive income |
160
|
160
|
162
|
517
|
| Balance |
(13,852)
|
(14,036)
|
(14,038)
|
(14,232)
|
| SERP [Member] |
|
|
|
|
| Balance |
(672)
|
(693)
|
(715)
|
(305)
|
| Other comprehensive income/(loss) before reclassifications |
0
|
0
|
0
|
(466)
|
| Amounts reclassified from accumulated other comprehensive income |
22
|
21
|
22
|
56
|
| Balance |
(650)
|
(672)
|
(693)
|
(715)
|
| Accumulated Other Comprehensive Loss [Member] |
|
|
|
|
| Balance |
(19,402)
|
(20,960)
|
(21,465)
|
(18,944)
|
| Other comprehensive income/(loss) before reclassifications |
222
|
1,358
|
257
|
(3,441)
|
| Amounts reclassified from accumulated other comprehensive income |
215
|
200
|
248
|
920
|
| Balance |
$ (18,965)
|
$ (19,402)
|
$ (20,960)
|
$ (21,465)
|