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Investment Securities (Unrealized Gain (Loss) on Investments) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Schedule of Investments [Line Items] |  |
Amortized Cost | $ 149,561 | $ 177,070
Gross Unrealized Gains | 269 | 1,129
Gross Unrealized Losses | 9,830 | 7,967
Investment securities - available-for-sale (at fair value) | 140,000 | 170,232
OTTI in AOCL | (3,961) | (4,320)
Held-to-maturity Amortized cost | 97,169 | 105,560
Held-to-maturity Gross Unrealized Gains | 1,410 | 1,419
Held-to-maturity Gross Unrealized Losses | 598 | 237
Investment securities - HTM | 97,981 | 106,742
Held-to-maturity OTTI in AOCI | 0 | 0
US government agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | 25,000 | 34,079
Gross Unrealized Gains | 0 | 14
Gross Unrealized Losses | 747 | 129
Investment securities - available-for-sale (at fair value) | 24,253 | 33,964
OTTI in AOCL | 0 | 0
Held-to-maturity Amortized cost | 15,738 | 24,704
Held-to-maturity Gross Unrealized Gains | 512 | 634
Held-to-maturity Gross Unrealized Losses | 0 | 0
Investment securities - HTM | 16,250 | 25,338
Held-to-maturity OTTI in AOCI | 0 | 0
Residential mortgage-backed agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost |  | 14,285
Gross Unrealized Gains |  | 105
Gross Unrealized Losses |  | 220
Investment securities - available-for-sale (at fair value) |  | 14,170
OTTI in AOCL |  | 0
Held-to-maturity Amortized cost | 50,384 | 53,734
Held-to-maturity Gross Unrealized Gains | 160 | 276
Held-to-maturity Gross Unrealized Losses | 279 | 98
Investment securities - HTM | 50,265 | 53,912
Held-to-maturity OTTI in AOCI | 0 | 0
Commercial mortgage-backed agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | 52,978 | 43,780
Gross Unrealized Gains | 1 | 52
Gross Unrealized Losses | 757 | 196
Investment securities - available-for-sale (at fair value) | 52,222 | 43,636
OTTI in AOCL | 0 | 0
Held-to-maturity Amortized cost | 17,584 | 18,078
Held-to-maturity Gross Unrealized Gains | 248 | 171
Held-to-maturity Gross Unrealized Losses | 0 | 17
Investment securities - HTM | 17,832 | 18,232
Held-to-maturity OTTI in AOCI | 0 | 0
Collateralized mortgage obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | 19,953 | 9,690
Gross Unrealized Gains | 13 | 43
Gross Unrealized Losses | 399 | 123
Investment securities - available-for-sale (at fair value) | 19,567 | 9,610
OTTI in AOCL | 0 | 0
Held-to-maturity Amortized cost | 4,833 | 6,419
Held-to-maturity Gross Unrealized Gains | 0 | 0
Held-to-maturity Gross Unrealized Losses | 149 | 122
Investment securities - HTM | 4,684 | 6,297
Held-to-maturity OTTI in AOCI | 0 | 0
Obligations of states and political subdivisions [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | 23,700 | 45,949
Gross Unrealized Gains | 255 | 915
Gross Unrealized Losses | 251 | 223
Investment securities - available-for-sale (at fair value) | 23,704 | 46,641
OTTI in AOCL | 0 | 0
Held-to-maturity Amortized cost | 8,630 | 2,625
Held-to-maturity Gross Unrealized Gains | 490 | 338
Held-to-maturity Gross Unrealized Losses | 170 | 0
Investment securities - HTM | 8,950 | 2,963
Held-to-maturity OTTI in AOCI | 0 | 0
Collateralized debt obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Amortized Cost | 27,930 | 29,287
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 7,676 | 7,076
Investment securities - available-for-sale (at fair value) | 20,254 | 22,211
OTTI in AOCL | $ (3,961) | $ (4,320)

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- Definition Accumulated other comprehensive loss related to portion of other than temporary impairment (OTTI) due to factors other than credit losses on debt securities categorized as available-for-sale that an entity does not intend to sell and which it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis of the debt security. The amount represented by this item is net of tax, as applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aaa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 Reference 2: 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=36458714&loc=SL7669686-108580 + Details
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- Definition Accumulated other comprehensive loss related to portion of other than temporary impairment (OTTI) due to factors other than credit losses on debt securities categorized as held-to-maturity that an entity does not intend to sell and which it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis of the debt security. The amount represented by this item is net of tax, as applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (dd) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 2: 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=36458714&loc=SL7669686-108580 + Details
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- Definition Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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