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Accumulated Other Comprehensive Loss (Schedule of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016
Beginning balance |  | $ (21,465) |
Balance |  | 113,698 | $ 120,771
Ending balance | $ (19,402) |  | (21,465)
Balance | 118,561 |  | 113,698
Investment securities- with OTTI [Member] |  |  |
Balance | (2,270) | (2,368) | (1,942)
Other comprehensive income/(loss) before reclassifications | (32) | 100 | (421)
Amounts reclassified from accumulated other comprehensive income | (34) | (2) | (5)
Balance | (2,336) | (2,270) | (2,368)
Investment Securities -All Other AFS [Member] |  |  |
Balance | (3,140) | (3,218) | (2,024)
Other comprehensive income/(loss) before reclassifications | 1,698 | 73 | (929)
Amounts reclassified from accumulated other comprehensive income | 10 | 5 | (265)
Balance | (1,432) | (3,140) | (3,218)
Investment Securities HTM [Member] |  |  |
Balance | (1,293) | (1,354) | (1,971)
Other comprehensive income/(loss) before reclassifications | 0 | 0 | 0
Amounts reclassified from accumulated other comprehensive income | 43 | 61 | 617
Balance | (1,250) | (1,293) | (1,354)
Cash Flow Hedge (OCI) [Member] |  |  |
Balance | 474 | 422 | (39)
Other comprehensive income/(loss) before reclassifications | (150) | 52 | 461
Amounts reclassified from accumulated other comprehensive income | 0 | 0 | 0
Balance | 324 | 474 | 422
Pension Plan [Member] |  |  |
Balance | (14,038) | (14,232) | (12,663)
Other comprehensive income/(loss) before reclassifications | (158) | 32 | (2,086)
Amounts reclassified from accumulated other comprehensive income | 160 | 162 | 517
Balance | (14,036) | (14,038) | (14,232)
SERP [Member] |  |  |
Balance | (693) | (715) | (305)
Other comprehensive income/(loss) before reclassifications | 0 | 0 | (466)
Amounts reclassified from accumulated other comprehensive income | 21 | 22 | 56
Balance | (672) | (693) | (715)
Accumulated Other Comprehensive Loss [Member] |  |  |
Balance | (20,960) | (21,465) | (18,944)
Other comprehensive income/(loss) before reclassifications | 1,358 | 257 | (3,441)
Amounts reclassified from accumulated other comprehensive income | 200 | 248 | 920
Balance | $ (19,402) | $ (20,960) | $ (21,465)

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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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