Note 14 - Regulatory Matters/Subsequent Event (Details Textual) - $ / shares
|
|
12 Months Ended |
Jan. 25, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Common Stock, Dividends, Per Share, Declared |
|
$ 0.09
|
|
|
|
| Common Stock, Dividends, Per Share, Cash Paid |
|
$ 0.09
|
|
|
|
| Stock Issued During Period, Shares, Dividend Reinvestment Plan |
|
78,752
|
|
|
|
| Capital to Risk Weighted Assets |
|
8.00%
|
|
|
8.00%
|
| Tier One Risk Based Capital to Risk Weighted Assets |
|
6.00%
|
|
|
4.00%
|
| Common Equity Tier One Capital to Risk Weighted Assets |
|
4.50%
|
|
|
|
| Tier One Leverage Capital to Average Assets |
|
4.00%
|
|
|
|
| Common Equity Tier One Capital Conservation Buffer Implementation of Deductions and Other Adjustments to Common Equity Tier One Capital Phase in Percentage Year |
|
40.00%
|
|
|
|
| Common Equity Tier One Capital Conservation Buffer Implementation of Deductions and Other Adjustments to Common Equity Tier One Capital Phase in Percentage Year 2 |
|
60.00%
|
|
|
|
| Common Equity Tier One Capital Conservation Buffer Implementation of Deductions and Other Adjustments to Common Equity Tier One Capital Phase in Percentage After Year Two |
|
20.00%
|
|
|
|
| Capital Required to be Well Capitalized to Risk Weighted Assets |
|
10.00%
|
10.00%
|
[1] |
10.00%
|
| Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets |
|
8.00%
|
8.00%
|
[1] |
6.00%
|
| Common Equity Tier One Capital Required to Be Well Capitalized to Risk-weighted Assets |
|
6.50%
|
6.50%
|
[1] |
|
| Tier One Leverage Capital Required to be Well Capitalized to Average Assets |
|
5.00%
|
5.00%
|
[1] |
|
| Effective January 2016 [Member] |
|
|
|
|
|
| Common Equity Tier One Capital Conservation Buffer |
|
0.625%
|
|
|
|
| Effective January 2019 [Member] |
|
|
|
|
|
| Common Equity Tier One Capital Conservation Buffer |
|
2.50%
|
|
|
|
| Subsequent Event [Member] |
|
|
|
|
|
| Common Stock, Dividends, Per Share, Declared |
$ 0.03
|
|
|
|
|
|
|