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Note 22 - Regulatory Matters (Details) - Capital Amounts and Ratios for the Company and Bank - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
CET1 capital (to risk weighted assets) | 4.50% |
CET1 capital (to risk weighted assets) | 6.50% |
Total capital (to risk weighted assets), minimum required for capital adequacy purposes | 8.00% | 8.00%
Total capital (to risk weighted assets), to be well capitalized under prompt corrective action | 10.00% | 10.00%
Tier 1 capital (to risk weighted assets), minimum required for capital adequacy purposes | 6.00% | 4.00%
Tier 1 capital (to risk weighted assets), to be well capitalized under prompt corrective action | 8.00% | 6.00%
Tier 1 capital (to average assets), minimum required for capital adequacy purposes | 4.00% | 3.00%
Tier 1 capital (to average assets), to be well capitalized under prompt corrective action | 5.00% | 5.00%
Parent Company [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
CET1 capital (to risk weighted assets) (in Dollars) | $ 632,408 |
CET1 capital (to risk weighted assets) | 10.68% |
Total capital (to risk weighted assets), actual (in Dollars) | $ 755,212 | $ 631,340
Total capital (to risk weighted assets), ratio | 12.75% | 12.97%
Tier 1 capital (to risk weighted assets), actual (in Dollars) | $ 632,408 | $ 505,864
Tier 1 capital (to risk weighted assets), ratio | 10.68% | 10.39%
Tier 1 capital (to average assets), actual (in Dollars) | $ 632,408 | $ 505,864
Tier 1 capital (to average assets), ratio | 10.90% | 10.69%
Bank [Member] |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
CET1 capital (to risk weighted assets) (in Dollars) | $ 620,879 |
CET1 capital (to risk weighted assets) | 10.52% |
Total capital (to risk weighted assets), actual (in Dollars) | $ 673,442 | $ 568,637
Total capital (to risk weighted assets), ratio | 11.41% | 11.73%
Tier 1 capital (to risk weighted assets), actual (in Dollars) | $ 620,879 | $ 522,637
Tier 1 capital (to risk weighted assets), ratio | 10.52% | 10.78%
Tier 1 capital (to average assets), actual (in Dollars) | $ 620,879 | $ 522,637
Tier 1 capital (to average assets), ratio | 10.74% | 11.09%

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- Definition The amount of total capital as defined in the regulations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 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 948 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998 + Details
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