Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Fair Value Measurement - Financial Assets and Liabilities Carried at Fair Value on Recurring Basis or Nonrecurring Basis (Details)

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Note 10 - Fair Value Measurement - Financial Assets and Liabilities Carried at Fair Value on Recurring Basis or Nonrecurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Cash and due from banks $ 71,181 $ 56,855 [1]
Available for sale debt securities, at fair value 438,808 422,375 [1]
Mortgage loans held for sale 5,673 4,675 [1]
Bank owned life insurance contracts 125,896 114,388 [1]
Held to maturity debt securities 79,257 62,564 [1]
Restricted equity securities 1,037 1,024 [1]
Federal funds sold 49,443 160,435 [1]
Loans, net 5,288,629 4,859,877 [1]
Federal funds purchased 300,226 355,944 [1]
Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member]    
Cash and due from banks 205,875 623,562
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member]    
Cash and due from banks 205,875 623,562
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member]    
Available for sale debt securities, at fair value 438,808 422,375
Mortgage loans held for sale 5,673 4,675
Bank owned life insurance contracts 125,896 114,388
Held to maturity debt securities 33,748 25,052
Restricted equity securities 1,037 1,024
Federal funds sold 49,443 160,435
Deposits 5,394,810 5,420,311
Federal funds purchased 300,226 355,944
Other borrowings 55,075 55,262
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member]    
Available for sale debt securities, at fair value 438,808 422,375
Mortgage loans held for sale 5,855 4,736
Bank owned life insurance contracts 125,896 114,388
Held to maturity debt securities 34,133 25,431
Restricted equity securities 1,037 1,024
Federal funds sold 49,443 160,435
Deposits 5,391,665 5,417,320
Federal funds purchased 300,226 355,944
Other borrowings 56,339 54,203
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member]    
Held to maturity debt securities 45,509 37,512
Loans, net 5,288,629 4,859,877
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]    
Held to maturity debt securities 46,399 37,871
Loans, net $ 5,283,824 $ 4,872,689
[1] Derived from audited financial statements