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Regulatory Matters and Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2017
Regulatory Matters and Stockholders' Equity [Abstract] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  | To be Well Capitalized
﻿ |  |  |  |  |  |  |  | under Prompt
﻿ |  |  |  |  | For Capital Adequacy |  | Corrective Action
﻿ | Actual |  | Purposes |  | Provision
﻿ | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio
﻿ | (Dollars in Thousands)
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿As of December 31, 2017: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Total capital (to risk-weighted assets) | $ | 113,091 |  | 14.11 | % |  | ≥$64,126 |  | ≥8.00 | % |  | ≥$80,158 |  | ≥10.00 | %
﻿Tier 1 capital (to risk-weighted assets) |  | 105,457 |  | 13.16 |  |  | ≥48,095 |  | ≥6.00 |  |  | ≥64,126 |  | ≥8.00 |
﻿Common Equity Tier 1 capital (to risk-weighted assets) |  | 105,457 |  | 13.16 |  |  | ≥36,071 |  | ≥4.50 |  |  | ≥52,103 |  | ≥6.50 |
﻿Tier 1 capital (to average assets) |  | 105,457 |  | 9.36 |  |  | ≥45,075 |  | ≥4.00 |  |  | ≥56,343 |  | ≥5.00 |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿As of December 31, 2016: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Total capital (to risk-weighted assets) | $ | 107,765 |  | 14.12 | % |  | ≥$61,057 |  | ≥8.00 | % |  | ≥$76,321 |  | ≥10.00 | %
﻿Tier 1 capital (to risk-weighted assets) |  | 101,302 |  | 13.27 |  |  | ≥45,793 |  | ≥6.00 |  |  | ≥61,057 |  | ≥8.00 |
﻿Common Equity Tier 1 capital (to risk-weighted assets) |  | 101,302 |  | 13.27 |  |  | ≥34,344 |  | ≥4.50 |  |  | ≥49,609 |  | ≥6.50 |
﻿Tier 1 capital (to average assets) |  | 101,302 |  | 9.16 |  |  | ≥44,251 |  | ≥4.00 |  |  | ≥55,314 |  | ≥5.00 |
﻿

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1G -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958577-112826 + Details
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