Note 10 - Short-term Borrowings and Long-term FHLB Advances (Details Textual) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Short-term Debt |
$ 204,151
|
$ 94,167
|
| Other Long-term Debt |
189,742
|
254,863
|
| Federal Home Loan Bank Stock |
17,305
|
12,942
|
| Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available |
1,220,000
|
|
| Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds |
886,000
|
|
| Federal Reserve Discount Window [Member] |
|
|
| Federal Home Loan Bank Stock |
17,300
|
12,900
|
| Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds |
117,300
|
|
| Overnight Federal Funds [Member] |
|
|
| Short-term Debt |
|
30,000
|
| Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds |
79,000
|
|
| Revolving Line of Credit with Correspondent Bank [Member] |
|
|
| Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds |
5,000
|
|
| Convertible-fixed [Member] |
|
|
| Other Long-term Debt |
$ 21,130
|
$ 21,251
|