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Regulatory Capital (Tables) | 12 Months Ended
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Dec. 31, 2017
Parent Company [Member] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] | The following table shows that, at December 31, 2017, and December 31, 2016, the Bancorp’s capital exceeded all applicable regulatory capital requirements. The dollar amounts are in millions.
(Dollars in millions) |  |  |  |  |  |  |  |  |  |  |  |  |  | Minimum Required To Be |
|  |  |  |  |  |  |  | Minimum Required For |  | Well Capitalized Under Prompt |
|  | Actual |  | Capital Adequacy Purposes |  | Corrective Action Regulations |
At December 31, 2017 |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |
Common equity tier 1 capital to risk-weighted assets |  | $ | 88.4 |  |  | 12.9 | % | $ | 30.9 |  |  | 4.5 | % | N/A |  | N/A |
Tier 1 capital to risk-weighted assets |  | $ | 88.4 |  |  | 12.9 | % | $ | 41.2 |  |  | 6.0 | % | N/A |  | N/A |
Total capital to risk-weighted assets |  | $ | 96.0 |  |  | 14.0 | % | $ | 55.0 |  |  | 8.0 | % | N/A |  | N/A |
Tier 1 capital to adjusted average assets |  | $ | 88.4 |  |  | 9.6 | % | $ | 36.8 |  |  | 4.0 | % | N/A |  | N/A |
(Dollars in millions) |  |  |  |  |  |  |  |  |  |  |  |  |  | Minimum Required To Be |
|  |  |  |  |  |  |  | Minimum Required For |  | Well Capitalized Under Prompt |
|  | Actual |  | Capital Adequacy Purposes |  | Corrective Action Regulations |
At December 31, 2016 |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |
Common equity tier 1 capital to risk-weighted assets |  | $ | 82.4 |  |  | 13.1 | % | $ | 28.3 |  |  | 4.5 | % | N/A |  | N/A |
Tier 1 capital to risk-weighted assets |  | $ | 82.4 |  |  | 13.1 | % | $ | 37.8 |  |  | 6.0 | % | N/A |  | N/A |
Total capital to risk-weighted assets |  | $ | 90.1 |  |  | 14.3 | % | $ | 50.4 |  |  | 8.0 | % | N/A |  | N/A |
Tier 1 capital to adjusted average assets |  | $ | 82.4 |  |  | 9.2 | % | $ | 36.0 |  |  | 4.0 | % | N/A |  | N/A |
Peoples Bank SB [Member] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] | In addition, the following table shows that, at December 31, 2017, and December 31, 2016, the Bank’s capital exceeded all applicable regulatory capital requirements. The dollar amounts are in millions.
(Dollars in millions) |  |  |  |  |  |  |  |  |  |  |  |  |  | Minimum Required To Be |
|  |  |  |  |  |  |  | Minimum Required For |  | Well Capitalized Under Prompt |
|  | Actual |  | Capital Adequacy Purposes |  | Corrective Action Regulations |
At December 31, 2017 |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |
Common equity tier 1 capital to risk-weighted assets |  | $ | 86.3 |  |  | 12.6 | % | $ | 30.9 |  |  | 4.5 | % | $ | 44.6 |  |  | 6.5 | %
Tier 1 capital to risk-weighted assets |  | $ | 86.3 |  |  | 12.6 | % | $ | 41.2 |  |  | 6.0 | % | $ | 54.9 |  |  | 8.0 | %
Total capital to risk-weighted assets |  | $ | 93.8 |  |  | 13.7 | % | $ | 54.9 |  |  | 8.0 | % | $ | 68.7 |  |  | 10.0 | %
Tier 1 capital to adjusted average assets |  | $ | 86.3 |  |  | 9.4 | % | $ | 36.7 |  |  | 4.0 | % | $ | 45.8 |  |  | 5.0 | %
(Dollars in millions) |  |  |  |  |  |  |  |  |  |  |  |  |  | Minimum Required To Be |
|  |  |  |  |  |  |  | Minimum Required For |  | Well Capitalized Under Prompt |
|  | Actual |  | Capital Adequacy Purposes |  | Corrective Action Regulations |
At December 31, 2016 |  | Amount |  | Ratio |  | Amount |  | Ratio |  | Amount |  | Ratio |
Common equity tier 1 capital to risk-weighted assets |  | $ | 81.2 |  |  | 12.9 | % | $ | 28.4 |  |  | 4.5 | % | $ | 41.0 |  |  | 6.5 | %
Tier 1 capital to risk-weighted assets |  | $ | 81.2 |  |  | 12.9 | % | $ | 37.9 |  |  | 6.0 | % | $ | 50.5 |  |  | 8.0 | %
Total capital to risk-weighted assets |  | $ | 88.9 |  |  | 14.1 | % | $ | 50.5 |  |  | 8.0 | % | $ | 63.1 |  |  | 10.0 | %
Tier 1 capital to adjusted average assets |  | $ | 81.2 |  |  | 9.0 | % | $ | 35.9 |  |  | 4.0 | % | $ | 44.9 |  |  | 5.0 | %

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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=84167132&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=84167132&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=84167132&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=84167132&loc=SL5958577-112826 + Details
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