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Accumulated Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2019
Accumulated Other Comprehensive Income [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
| March 31, |  | December 31,
| 2019 |  | 2018
| (In thousands)
Unrealized loss on securities available-for-sale which are not other-than-temporarily impaired | $ | (9,280) |  | $ | (12,654)
Income tax effect of unrealized loss on securities available-for-sale |  | 1,439 |  |  | 1,682
Net unrealized gain on securities available-for-sale which are not other-than-temporarily impaired |  | (7,841) |  |  | (10,972)
Unrealized (loss) gain on cash flow hedges |  | (329) |  |  | 14
Income tax effect of unrealized (loss) gain on cash flow hedges |  | 123 |  |  | (5)
Net unrealized (loss) gain on cash flow hedges |  | (206) |  |  | 9
Accumulated other comprehensive (loss), net of income taxes | $ | (8,047) |  | $ | (10,963)
| Quarter Ended March 31, 2019
| Net unrealized |  | Net unrealized |  | Accumulated
| gains on |  | loss on |  | other
| securities |  | cash flow |  | comprehensive
| available-for-sale |  | hedges |  | (loss) income
| (In thousands)
Beginning balance | $ | (10,972) |  | $ | 9 |  | $ | (10,963)
Other comprehensive income (loss) |  |  |  |  |  |  |  |
Transfer of securities held-to-maturity to available-for-sale |  | (12,041) |  |  | - |  |  | (12,041)
Other comprehensive income (loss) before reclassifications |  | 15,189 |  |  | (432) |  |  | 14,757
Amounts reclassified out of accumulated other comprehensive (loss) income |  | (17) |  |  | 217 |  |  | 200
|  | 3,131 |  |  | (215) |  |  | 2,916
Ending balance | $ | (7,841) |  | $ | (206) |  | $ | (8,047)
| Quarter Ended March 31, 2018
| Net unrealized |  | Net unrealized |  | Accumulated
| gains on |  | loss on |  | other
| securities |  | cash flow |  | comprehensive
| available-for-sale |  | hedges |  | (loss) income
| (In thousands)
Beginning balance | $ | (2,638) |  | $ | (311) |  | $ | (2,949)
Other comprehensive (loss) income before reclassifications |  | (9,576) |  |  | 26 |  |  | (9,550)
Amounts reclassified out of accumulated other comprehensive (loss) income |  | (60) |  |  | 374 |  |  | 314
Other comprehensive (loss) income |  | (9,636) |  |  | 400 |  |  | (9,236)
Ending balance | $ | (12,274) |  | $ | 89 |  | $ | (12,185)
Reclassification out of Accumulated Other Comprehensive Income [Table text block] |
| Amount reclassified out of accumulated other comprehensive income | Affected Line Item in Consolidated Statement of Operations
| Quarter Ended March 31,
|  | 2019 |  |  | 2018
| (In thousands) |
Cash flow hedges: |  |  |  |  |  |
Interest-rate contracts | $ | 217 |  | $ | 374 |
Available-for-sale securities: |  |  |  |  |  | Net interest expense
Residual tax effect from OIB's change in applicable tax rate |  | - |  |  | 5 | Net impairment losses recognized in earnings
Tax effect from changes in tax rates |  | (17) |  |  | (65) | Income tax expense
| $ | 200 |  | $ | 314 |

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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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