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Note 14 - Commitments and Off-balance-sheet Risk (Tables) | 12 Months Ended
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Dec. 31, 2014
Disclosure Text Block Supplement [Abstract] |
Summary of Contractual Amounts of Financial Instruments with Off-balance Sheet Risk [Table Text Block] |
|  | 2014 |  |  | 2013 |
Commercial unused lines of credit |  | $ | 554,856,000 |  |  | $ | 257,937,000 |
Unused lines of credit secured by 1 – 4 family residential properties |  |  | 60,983,000 |  |  |  | 23,429,000 |
Credit card unused lines of credit |  |  | 11,649,000 |  |  |  | 9,013,000 |
Other consumer unused lines of credit |  |  | 8,673,000 |  |  |  | 5,695,000 |
Commitments to make loans |  |  | 110,126,000 |  |  |  | 58,799,000 |
Standby letters of credit |  |  | 35,461,000 |  |  |  | 19,670,000 |
Total commitments |  | $ | 781,748,000 |  |  | $ | 374,543,000 |
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block] |
|  | 2014 |  |  | 2013 |
|  | Contract |  |  | Carrying |  |  | Contract |  |  | Carrying |
|  | Amount |  |  | Value |  |  | Amount |  |  | Value |
Standby letters of credit |  | $ | 35,461,000 |  |  | $ | 150,000 |  |  | $ | 19,670,000 |  |  | $ | 148,000 |

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- Definition Tabular disclosure of contractual amounts of financial instruments with off-balance sheet risk. + References No definition available. + Details
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- Definition Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined) which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13467-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 + Details
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