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Note 4 - Loans and Allowance for Loan Losses (Details) - Age Analysis of Past Due Loans (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
Commercial:
Loans- Total	$ 2,068,265,000	$ 1,053,243,000
Originated Loan [Member] | Commercial and Industrial [Member]
Commercial:
Loans- 30 to 59 days past due	0	0
Loans- 60 to 89 days past due	0	0
Loans- Greater than 89 days past due	0	309,000
Loans- Total past due	0	309,000
Loans- Current	362,329,000	286,064,000
Loans- Total	362,329,000	286,373,000
Loans- Recorded Balance >89days and accruing	0	0
Originated Loan [Member] | Commercial Vacant Land and Land Development and Residential Construction Loan [Member]
Commercial:
Loans- 30 to 59 days past due	0	0
Loans- 60 to 89 days past due	0	0
Loans- Greater than 89 days past due	0	0
Loans- Total past due	0	0
Loans- Current	30,246,000	36,741,000
Loans- Total	30,246,000	36,741,000
Loans- Recorded Balance >89days and accruing	0	0
Originated Loan [Member] | Commercial Real Estate Owner Occupied Loan [Member]
Commercial:
Loans- 30 to 59 days past due	0	65,000
Loans- 60 to 89 days past due	0	0
Loans- Greater than 89 days past due	217,000	50,000
Loans- Total past due	217,000	115,000
Loans- Current	266,855,000	261,762,000
Loans- Total	267,072,000	261,877,000
Loans- Recorded Balance >89days and accruing	0	0
Originated Loan [Member] | Commercial Real Estate Non Owner Occupied Loan [Member]
Commercial:
Loans- 30 to 59 days past due	201,000	0
Loans- 60 to 89 days past due	0	0
Loans- Greater than 89 days past due	0	0
Loans- Total past due	201,000	0
Loans- Current	401,561,000	364,066,000
Loans- Total	401,762,000	364,066,000
Loans- Recorded Balance >89days and accruing	0	0
Originated Loan [Member] | Commercial Real Estate Multi Family and Residential Rental Loan [Member]
Commercial:
Loans- 30 to 59 days past due	0	0
Loans- 60 to 89 days past due	0	0
Loans- Greater than 89 days past due	0	64,000
Loans- Total past due	0	64,000
Loans- Current	42,393,000	37,575,000
Loans- Total	42,393,000	37,639,000
Loans- Recorded Balance >89days and accruing	0	0
Originated Loan [Member] | Commercial Portfolio Segment [Member]
Commercial:
Loans- 30 to 59 days past due	201,000	65,000
Loans- 60 to 89 days past due	0	0
Loans- Greater than 89 days past due	217,000	423,000
Loans- Total past due	418,000	488,000
Loans- Current	1,103,384,000	986,208,000
Loans- Total	1,103,802,000	986,696,000	1,007,763,000
Loans- Recorded Balance >89days and accruing	0	0
Originated Loan [Member] | Retail Home Equity and Other [Member]
Commercial:
Loans- 30 to 59 days past due	67,000	14,000
Loans- 60 to 89 days past due	0	0
Loans- Greater than 89 days past due	0	0
Loans- Total past due	67,000	14,000
Loans- Current	44,850,000	35,066,000
Loans- Total	44,917,000	35,080,000
Loans- Recorded Balance >89days and accruing	0	0
Originated Loan [Member] | Retail 1-4 Family Mortgages [Member]
Commercial:
Loans- 30 to 59 days past due	33,000	21,000
Loans- 60 to 89 days past due	0	44,000
Loans- Greater than 89 days past due	344,000	375,000
Loans- Total past due	377,000	440,000
Loans- Current	37,617,000	31,027,000
Loans- Total	37,994,000	31,467,000
Loans- Recorded Balance >89days and accruing	0	0
Originated Loan [Member] | Retail Loan [Member]
Commercial:
Loans- 30 to 59 days past due	100,000	35,000
Loans- 60 to 89 days past due	0	44,000
Loans- Greater than 89 days past due	344,000	375,000
Loans- Total past due	444,000	454,000
Loans- Current	82,467,000	66,093,000
Loans- Total	82,911,000	66,547,000	67,724,000
Loans- Recorded Balance >89days and accruing	0	0
Originated Loan [Member]
Commercial:
Loans- 30 to 59 days past due	301,000	100,000
Loans- 60 to 89 days past due	0	44,000
Loans- Greater than 89 days past due	561,000	798,000
Loans- Total past due	862,000	942,000
Loans- Current	1,185,851,000	1,052,301,000
Loans- Total	1,186,713,000	1,053,243,000	1,075,487,000
Loans- Recorded Balance >89days and accruing	0	0
Acquired Loan [Member] | Commercial and Industrial [Member]
Commercial:
Loans- 30 to 59 days past due	66,000
Loans- 60 to 89 days past due	11,000
Loans- Greater than 89 days past due	23,000
Loans- Total past due	100,000
Loans- Current	179,376,000
Loans- Total	179,476,000	0
Loans- Recorded Balance >89days and accruing	0
Acquired Loan [Member] | Commercial Vacant Land and Land Development and Residential Construction Loan [Member]
Commercial:
Loans- 30 to 59 days past due	0
Loans- 60 to 89 days past due	0
Loans- Greater than 89 days past due	0
Loans- Total past due	0
Loans- Current	21,972,000
Loans- Total	21,972,000	0
Loans- Recorded Balance >89days and accruing	0
Acquired Loan [Member] | Commercial Real Estate Owner Occupied Loan [Member]
Commercial:
Loans- 30 to 59 days past due	112,000
Loans- 60 to 89 days past due	0
Loans- Greater than 89 days past due	1,914,000
Loans- Total past due	2,026,000
Loans- Current	143,372,000
Loans- Total	145,398,000	0
Loans- Recorded Balance >89days and accruing	0
Acquired Loan [Member] | Commercial Real Estate Non Owner Occupied Loan [Member]
Commercial:
Loans- 30 to 59 days past due	0
Loans- 60 to 89 days past due	0
Loans- Greater than 89 days past due	2,732,000
Loans- Total past due	2,732,000
Loans- Current	179,928,000
Loans- Total	182,660,000	0
Loans- Recorded Balance >89days and accruing	0
Acquired Loan [Member] | Commercial Real Estate Multi Family and Residential Rental Loan [Member]
Commercial:
Loans- 30 to 59 days past due	0
Loans- 60 to 89 days past due	0
Loans- Greater than 89 days past due	81,000
Loans- Total past due	81,000
Loans- Current	53,175,000
Loans- Total	53,256,000	0
Loans- Recorded Balance >89days and accruing	0
Acquired Loan [Member] | Commercial Portfolio Segment [Member]
Commercial:
Loans- 30 to 59 days past due	178,000
Loans- 60 to 89 days past due	11,000
Loans- Greater than 89 days past due	4,750,000
Loans- Total past due	4,939,000
Loans- Current	577,823,000
Loans- Total	582,762,000	0
Loans- Recorded Balance >89days and accruing	0
Acquired Loan [Member] | Retail Home Equity and Other [Member]
Commercial:
Loans- 30 to 59 days past due	405,000
Loans- 60 to 89 days past due	122,000
Loans- Greater than 89 days past due	103,000
Loans- Total past due	630,000
Loans- Current	118,403,000
Loans- Total	119,033,000	0
Loans- Recorded Balance >89days and accruing	3,000
Acquired Loan [Member] | Retail 1-4 Family Mortgages [Member]
Commercial:
Loans- 30 to 59 days past due	1,684,000
Loans- 60 to 89 days past due	504,000
Loans- Greater than 89 days past due	844,000
Loans- Total past due	3,032,000
Loans- Current	176,725,000
Loans- Total	179,757,000	0
Loans- Recorded Balance >89days and accruing	238,000
Acquired Loan [Member] | Retail Loan [Member]
Commercial:
Loans- 30 to 59 days past due	2,089,000
Loans- 60 to 89 days past due	626,000
Loans- Greater than 89 days past due	947,000
Loans- Total past due	3,662,000
Loans- Current	295,128,000
Loans- Total	298,790,000	0
Loans- Recorded Balance >89days and accruing	241,000
Acquired Loan [Member]
Commercial:
Loans- 30 to 59 days past due	2,267,000
Loans- 60 to 89 days past due	637,000
Loans- Greater than 89 days past due	5,697,000
Loans- Total past due	8,601,000
Loans- Current	872,951,000
Loans- Total	881,552,000	0
Loans- Recorded Balance >89days and accruing	241,000
Commercial and Industrial [Member]
Commercial:
Loans- Total	541,805,000	286,373,000
Commercial Vacant Land and Land Development and Residential Construction Loan [Member]
Commercial:
Loans- Total	52,218,000	36,741,000
Commercial Real Estate Owner Occupied Loan [Member]
Commercial:
Loans- Total	412,470,000	261,877,000
Commercial Real Estate Non Owner Occupied Loan [Member]
Commercial:
Loans- Total	584,422,000	364,066,000
Commercial Real Estate Multi Family and Residential Rental Loan [Member]
Commercial:
Loans- Total	95,649,000	37,639,000
Commercial Portfolio Segment [Member]
Commercial:
Loans- Total	1,686,564,000	986,696,000
Retail Home Equity and Other [Member]
Commercial:
Loans- Total	163,950,000	35,080,000
Retail 1-4 Family Mortgages [Member]
Commercial:
Loans- Total	217,751,000	31,467,000
Retail Loan [Member]
Commercial:
Loans- Total	$ 381,701,000	$ 66,547,000

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Financing receivables that are less than 60 days past due but more than 29 days past due.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

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Financing receivables that are less than 90 days past due but more than 59 days past due.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

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Recorded investment in financing receivables that are 90 days or more past due and still accruing.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

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Financing receivables that are current.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

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Financing receivables that are equal to or greater than 90 days past due.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

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Recorded Investment in financing receivables that are past due at the balance sheet date.

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-Publisher FASB

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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