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Securities (Tables) | 12 Months Ended
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Dec. 31, 2017
Securities [Abstract] |
Amortized cost and fair value of available-for-sale securities portfolio |
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
﻿December 31, 2017 |  |  |  |  |  |  |  |  |  |  |
﻿Issued by U.S. government-sponsored entities and agencies: |  |  |  |  |  |  |  |  |  |  |
﻿U.S. Treasury | $ | 11,499 |  | $ | - |  | $ | 82 |  | $ | 11,417
﻿Mortgage-backed securities - residential |  | 236 |  |  | 8 |  |  | - |  |  | 244
﻿Collateralized mortgage obligations |  | 110 |  |  | 2 |  |  | - |  |  | 112
﻿Total | $ | 11,845 |  | $ | 10 |  | $ | 82 |  | $ | 11,773
﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |
﻿ | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
﻿December 31, 2016 |  |  |  |  |  |  |  |  |  |  |
﻿Issued by U.S. government-sponsored entities and agencies: |  |  |  |  |  |  |  |  |  |  |
﻿U.S. Treasury | $ | 13,521 |  | $ | 11 |  | $ | 27 |  | $ | 13,505
﻿Mortgage-backed securities - residential |  | 345 |  |  | 12 |  |  | - |  |  | 357
﻿Collateralized mortgage obligations |  | 189 |  |  | 7 |  |  | - |  |  | 196
﻿Total | $ | 14,055 |  | $ | 30 |  | $ | 27 |  | $ | 14,058
﻿
Securities Classified By Maturity Date |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | December 31, 2017 |  | December 31, 2016
﻿ |  | Amortized Cost |  | Fair Value |  | Amortized Cost |  | Fair Value
﻿Due in one year or less |  | $ | 3,002 |  | $ | 2,993 |  | $ | 2,518 |  | $ | 2,518
﻿Due from one to five years |  |  | 8,497 |  |  | 8,424 |  |  | 11,003 |  |  | 10,987
﻿Mortgage-backed securities - residential |  |  | 236 |  |  | 244 |  |  | 345 |  |  | 357
﻿Collateralized mortgage obligations |  |  | 110 |  |  | 112 |  |  | 189 |  |  | 196
﻿ Total |  | $ | 11,845 |  | $ | 11,773 |  | $ | 14,055 |  | $ | 14,058
﻿
Fair value of securities pledged |
﻿ |  |  |  |  |
﻿ | 2017 |  | 2016
﻿Pledged as collateral for: |  |  |  |  |
﻿FHLB advances | $ | 4,641 |  | $ | 2,327
﻿Public deposits |  | 2,018 |  |  | 2,043
﻿Interest-rate swaps |  | 145 |  |  | 195
﻿Total | $ | 6,804 |  | $ | 4,565
﻿
Securities with unrealized losses |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿December 31, 2017 |  | Less than 12 Months |  | 12 Months or More |  | Total
﻿Description of Securities |  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss
﻿Issued by U.S. government-sponsored entities and agencies: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿U.S. Treasury |  | $ | 6,947 |  | $ | 51 |  | $ | 4,470 |  | $ | 31 |  | $ | 11,417 |  | $ | 82
﻿Total temporarily impaired |  | $ | 6,947 |  | $ | 51 |  | $ | 4,470 |  | $ | 31 |  | $ | 11,417 |  | $ | 82
﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿December 31, 2016 |  | Less than 12 Months |  | 12 Months or More |  | Total
﻿Description of Securities |  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss
﻿Issued by U.S. government-sponsored entities and agencies: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿U.S. Treasury |  | $ | 10,492 |  | $ | 27 |  | $ | - |  | $ | - |  | $ | 10,492 |  | $ | 27
﻿Mortgage-backed securities - residential (1) |  |  | 1 |  |  | - |  |  | - |  |  | - |  |  | 1 |  |  | -
﻿Total temporarily impaired |  | $ | 10,493 |  | $ | 27 |  | $ | - |  | $ | - |  | $ | 10,493 |  | $ | 27
| (1) |  | Securities with an unrealized loss were less than $1 resulting in rounding to zero.
﻿

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62557-112803 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27198-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27357-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563 + Details
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- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563 + Details
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