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Securities (Available-for-Sale Securities) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Schedule of Available-for-sale Securities |  |
Amortized cost | $ 127,326 | $ 146,461
Gross unrealized gains | 179 | 684
Gross unrealized losses | (1,500) | (1,252)
Fair Value | 126,005 | 145,893
U.S. government agency obligations - government-sponsored enterprises |  |
Schedule of Available-for-sale Securities |  |
Amortized cost | 999 | 6,298
Gross unrealized gains | 1 | 7
Gross unrealized losses | 0 | (10)
Fair Value | 1,000 | 6,295
Municipal obligations |  |
Schedule of Available-for-sale Securities |  |
Amortized cost | 9,494 | 8,246
Gross unrealized gains | 2 | 2
Gross unrealized losses | (82) | (92)
Fair Value | 9,414 | 8,156
Asset-backed securities |  |
Schedule of Available-for-sale Securities |  |
Amortized cost |  | 1,116
Gross unrealized gains |  | 0
Gross unrealized losses |  | (35)
Fair Value |  | 1,081
Collateralized mortgage obligations - government issued |  |
Schedule of Available-for-sale Securities |  |
Amortized cost | 22,313 | 30,936
Gross unrealized gains | 149 | 423
Gross unrealized losses | (213) | (146)
Fair Value | 22,249 | 31,213
Collateralized mortgage obligations - government-sponsored enterprises |  |
Schedule of Available-for-sale Securities |  |
Amortized cost | 91,480 | 99,865
Gross unrealized gains | 24 | 252
Gross unrealized losses | (1,199) | (969)
Fair Value | 90,305 | $ 99,148
Other securities |  |
Schedule of Available-for-sale Securities |  |
Amortized cost | 3,040 |
Gross unrealized gains | 3 |
Gross unrealized losses | (6) |
Fair Value | $ 3,037 |

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- Definition Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt 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=82897076&loc=d3e27161-111563 + Details
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- Definition Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt 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 (c) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
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- Definition This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + 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 (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562 + Details
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