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Note 4 - Debt and Equity Securities (Tables) | 3 Months Ended
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Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract] |
Schedule of Available-for-sale Securities Reconciliation [Table Text Block] |
|  | Amortized Cost |  |  | Fair Value |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |
|  | (In thousands) |
Corporate |  | $ | 95,785 |  |  | $ | 95,750 |  |  | $ | 939 |  |  | $ | 974 |
Municipals |  |  | 144,152 |  |  |  | 148,377 |  |  |  | 4,258 |  |  |  | 33 |
Mutual funds |  |  | 21,278 |  |  |  | 21,278 |  |  |  | - |  |  |  | - |
Other |  |  | 24,550 |  |  |  | 24,550 |  |  |  | 2 |  |  |  | 2 |
Total other securities |  |  | 285,765 |  |  |  | 289,955 |  |  |  | 5,199 |  |  |  | 1,009 |
REMIC and CMO |  |  | 514,592 |  |  |  | 521,312 |  |  |  | 8,857 |  |  |  | 2,137 |
GNMA |  |  | 13,359 |  |  |  | 13,733 |  |  |  | 455 |  |  |  | 81 |
FNMA |  |  | 166,451 |  |  |  | 168,556 |  |  |  | 2,786 |  |  |  | 681 |
FHLMC |  |  | 13,912 |  |  |  | 14,128 |  |  |  | 216 |  |  |  | - |
Total mortgage-backed securities |  |  | 708,314 |  |  |  | 717,729 |  |  |  | 12,314 |  |  |  | 2,899 |
Total securities available for sale |  | $ | 994,079 |  |  | $ | 1,007,684 |  |  | $ | 17,513 |  |  | $ | 3,908 |
|  | Amortized Cost |  |  | Fair Value |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |
|  | (In thousands) |
Corporate |  | $ | 90,719 |  |  | $ | 91,273 |  |  | $ | 1,268 |  |  | $ | 714 |
Municipals |  |  | 145,864 |  |  |  | 148,896 |  |  |  | 3,093 |  |  |  | 61 |
Mutual funds |  |  | 21,118 |  |  |  | 21,118 |  |  |  | - |  |  |  | - |
Other |  |  | 7,098 |  |  |  | 7,090 |  |  |  | - |  |  |  | 8 |
Total other securities |  |  | 264,799 |  |  |  | 268,377 |  |  |  | 4,361 |  |  |  | 783 |
REMIC and CMO |  |  | 504,207 |  |  |  | 505,768 |  |  |  | 6,188 |  |  |  | 4,627 |
GNMA |  |  | 13,862 |  |  |  | 14,159 |  |  |  | 421 |  |  |  | 124 |
FNMA |  |  | 169,956 |  |  |  | 170,367 |  |  |  | 2,128 |  |  |  | 1,717 |
FHLMC |  |  | 14,505 |  |  |  | 14,639 |  |  |  | 142 |  |  |  | 8 |
Total mortgage-backed securities |  |  | 702,530 |  |  |  | 704,933 |  |  |  | 8,879 |  |  |  | 6,476 |
Total securities available for sale |  | $ | 967,329 |  |  | $ | 973,310 |  |  | $ | 13,240 |  |  | $ | 7,259 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] |
|  | Total |  |  | Less than 12 months |  |  | 12 months or more |
|  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
|  | (In thousands) |
Corporate |  | $ | 49,026 |  |  | $ | 974 |  |  | $ | 19,389 |  |  | $ | 611 |  |  | $ | 29,637 |  |  | $ | 363 |
Municipals |  |  | 5,268 |  |  |  | 33 |  |  |  | 5,268 |  |  |  | 33 |  |  |  | - |  |  |  | - |
Other |  |  | 298 |  |  |  | 2 |  |  |  | - |  |  |  | - |  |  |  | 298 |  |  |  | 2 |
Total other securities |  |  | 54,592 |  |  |  | 1,009 |  |  |  | 24,657 |  |  |  | 644 |  |  |  | 29,935 |  |  |  | 365 |
REMIC and CMO |  |  | 158,838 |  |  |  | 2,137 |  |  |  | 55,749 |  |  |  | 134 |  |  |  | 103,089 |  |  |  | 2,003 |
GNMA |  |  | 8,099 |  |  |  | 81 |  |  |  | 8,099 |  |  |  | 81 |  |  |  | - |  |  |  | - |
FNMA |  |  | 62,834 |  |  |  | 681 |  |  |  | 29,897 |  |  |  | 179 |  |  |  | 32,937 |  |  |  | 502 |
Total mortgage-backed securities |  |  | 229,771 |  |  |  | 2,899 |  |  |  | 93,745 |  |  |  | 394 |  |  |  | 136,026 |  |  |  | 2,505 |
Total securities available for sale |  | $ | 284,363 |  |  | $ | 3,908 |  |  | $ | 118,402 |  |  | $ | 1,038 |  |  | $ | 165,961 |  |  | $ | 2,870 |
|  | Total |  |  | Less than 12 months |  |  | 12 months or more |
|  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |  |  | Fair Value |  |  | Unrealized Losses |
|  | (In thousands) |
Corporate |  | $ | 39,287 |  |  | $ | 714 |  |  | $ | 9,573 |  |  | $ | 428 |  |  | $ | 29,714 |  |  | $ | 286 |
Municipals |  |  | 8,810 |  |  |  | 61 |  |  |  | 3,546 |  |  |  | 11 |  |  |  | 5,264 |  |  |  | 50 |
Other |  |  | 292 |  |  |  | 8 |  |  |  | - |  |  |  | - |  |  |  | 292 |  |  |  | 8 |
Total other securities |  |  | 48,389 |  |  |  | 783 |  |  |  | 13,119 |  |  |  | 439 |  |  |  | 35,270 |  |  |  | 344 |
REMIC and CMO |  |  | 216,190 |  |  |  | 4,627 |  |  |  | 77,382 |  |  |  | 399 |  |  |  | 138,808 |  |  |  | 4,228 |
GNMA |  |  | 8,358 |  |  |  | 124 |  |  |  | - |  |  |  | - |  |  |  | 8,358 |  |  |  | 124 |
FNMA |  |  | 95,148 |  |  |  | 1,717 |  |  |  | - |  |  |  | - |  |  |  | 95,148 |  |  |  | 1,717 |
FHLMC |  |  | 6,773 |  |  |  | 8 |  |  |  | 6,773 |  |  |  | 8 |  |  |  | - |  |  |  | - |
Total mortgage-backed securities |  |  | 326,469 |  |  |  | 6,476 |  |  |  | 84,155 |  |  |  | 407 |  |  |  | 242,314 |  |  |  | 6,069 |
Total securities available for sale |  | $ | 374,858 |  |  | $ | 7,259 |  |  | $ | 97,274 |  |  | $ | 846 |  |  | $ | 277,584 |  |  | $ | 6,413 |
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block] |
|  | For the three months ended March 31, |
|  | 2015 |  |  | 2014 |
|  | (In thousands) |
Beginning balance |  | $ | - |  |  | $ | 3,738 |
Recognition of actual losses |  |  | - |  |  |  | - |
OTTI charges due to credit loss recorded in earnings |  |  | - |  |  |  | - |
Securities sold during the period |  |  | - |  |  |  | - |
Securities where there is an intent to sell or requirement to sell |  |  | - |  |  |  | - |
Ending balance |  | $ | - |  |  | $ | 3,738 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | Amortized Cost |  |  | Fair Value |
|  | (In thousands) |
Due in one year or less |  | $ | 37,469 |  |  | $ | 37,706 |
Due after one year through five years |  |  | 26,104 |  |  |  | 26,768 |
Due after five years through ten years |  |  | 79,662 |  |  |  | 79,130 |
Due after ten years |  |  | 142,530 |  |  |  | 146,351 |
Total other securities |  |  | 285,765 |  |  |  | 289,955 |
Mortgage-backed securities |  |  | 708,314 |  |  |  | 717,729 |
Total securities available for sale |  | $ | 994,079 |  |  | $ | 1,007,684 |

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- Definition Tabular disclosure of the amount of other than temporary impairment (OTTI) related to credit losses recognized in earnings including: (a) the beginning balance of the amount related to credit losses on debt securities held by the investor at the beginning of the period for which a portion of an OTTI was recognized in other comprehensive income; (b) additions for the amount related to the credit loss for which an OTTI was not previously recognized; (c) reductions for securities sold during the period (realized); (d) reductions for securities for which the amount previously recognized in other comprehensive income was recognized in earnings because the investor intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis; (e) additional increases to the amount related to the credit loss for which an OTTI was previously recognized when the investor does not intend to sell the security and it is not more likely than not that the investor will be required to sell the security before recovery of its amortized cost basis; (f) reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security; and (g) the ending balance of the amount related to credit losses on debt securities held by the entity at the end of the period for which a portion of an OTTI was recognized in other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27340-111563 + Details
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