Note 19 - Fair Value Measurements - Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($)
$ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Held to Maturity Securities - Estimated Fair Value |
$ 3,597
|
$ 3,809
|
| Reported Value Measurement [Member] |
|
|
| Cash and cash equivalents |
113,534
|
120,493
|
| Held to Maturity Securities - Estimated Fair Value |
3,488
|
3,611
|
| Loans, net |
961,631
|
948,960
|
| Accrued interest receivable |
5,019
|
5,392
|
| Federal Home Loan Bank and Federal Reserve Bank Stock |
9,840
|
9,368
|
| Deposits |
1,369,907
|
1,368,994
|
| Federal funds purchased and short-term securities sold under agreements to repurchase |
35,085
|
34,353
|
| Securities sold under agreements to repurchase and other long-term borrowings |
19,931
|
120,280
|
| Subordinated notes payable to unconsolidated trusts |
33,506
|
48,970
|
| Accrued interest payable |
321
|
851
|
| Estimate of Fair Value Measurement [Member] |
|
|
| Cash and cash equivalents |
113,534
|
120,493
|
| Held to Maturity Securities - Estimated Fair Value |
3,597
|
3,809
|
| Loans, net |
962,437
|
945,809
|
| Accrued interest receivable |
5,019
|
5,392
|
| Federal Home Loan Bank and Federal Reserve Bank Stock |
0
|
0
|
| Deposits |
1,369,567
|
1,369,016
|
| Federal funds purchased and short-term securities sold under agreements to repurchase |
35,085
|
34,353
|
| Securities sold under agreements to repurchase and other long-term borrowings |
20,410
|
126,964
|
| Subordinated notes payable to unconsolidated trusts |
21,234
|
31,515
|
| Accrued interest payable |
321
|
851
|
| Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
| Cash and cash equivalents |
113,534
|
120,493
|
| Held to Maturity Securities - Estimated Fair Value |
0
|
0
|
| Loans, net |
0
|
0
|
| Accrued interest receivable |
0
|
0
|
| Federal Home Loan Bank and Federal Reserve Bank Stock |
0
|
0
|
| Deposits |
1,099,211
|
1,043,616
|
| Federal funds purchased and short-term securities sold under agreements to repurchase |
0
|
0
|
| Securities sold under agreements to repurchase and other long-term borrowings |
0
|
0
|
| Subordinated notes payable to unconsolidated trusts |
0
|
0
|
| Accrued interest payable |
0
|
0
|
| Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
| Cash and cash equivalents |
0
|
0
|
| Held to Maturity Securities - Estimated Fair Value |
3,597
|
3,809
|
| Loans, net |
0
|
0
|
| Accrued interest receivable |
5,019
|
5,392
|
| Federal Home Loan Bank and Federal Reserve Bank Stock |
0
|
0
|
| Deposits |
0
|
0
|
| Federal funds purchased and short-term securities sold under agreements to repurchase |
35,085
|
34,353
|
| Securities sold under agreements to repurchase and other long-term borrowings |
20,410
|
126,964
|
| Subordinated notes payable to unconsolidated trusts |
0
|
0
|
| Accrued interest payable |
321
|
851
|
| Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] |
|
|
| Cash and cash equivalents |
0
|
0
|
| Held to Maturity Securities - Estimated Fair Value |
0
|
0
|
| Loans, net |
962,437
|
945,809
|
| Accrued interest receivable |
0
|
0
|
| Federal Home Loan Bank and Federal Reserve Bank Stock |
0
|
0
|
| Deposits |
270,356
|
325,400
|
| Federal funds purchased and short-term securities sold under agreements to repurchase |
0
|
|
| Securities sold under agreements to repurchase and other long-term borrowings |
0
|
0
|
| Subordinated notes payable to unconsolidated trusts |
21,234
|
31,515
|
| Accrued interest payable |
$ 0
|
$ 0
|