Note 5 - Loans and Leases - Loan Acquired (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Outstanding Principal |
$ 306,725
|
$ 402,228
|
| Remaining Loan Mark |
(12,287)
|
(17,109)
|
| Recorded Investment |
294,438
|
385,119
|
| Real Estate Portfolio Segment [Member] | Commercial Mortgage [Member] |
|
|
| Outstanding Principal |
168,612
|
197,532
|
| Remaining Loan Mark |
(4,593)
|
(5,844)
|
| Recorded Investment |
164,019
|
191,688
|
| Real Estate Portfolio Segment [Member] | Home Equity Loan [Member] |
|
|
| Outstanding Principal |
31,236
|
40,258
|
| Remaining Loan Mark |
(1,687)
|
(1,974)
|
| Recorded Investment |
29,549
|
38,284
|
| Real Estate Portfolio Segment [Member] | Residential Mortgage Loan [Member] |
|
|
| Outstanding Principal |
73,902
|
93,230
|
| Remaining Loan Mark |
(2,630)
|
(3,313)
|
| Recorded Investment |
71,272
|
89,917
|
| Real Estate Portfolio Segment [Member] | Construction Loans [Member] |
|
|
| Outstanding Principal |
|
3,807
|
| Remaining Loan Mark |
|
(541)
|
| Recorded Investment |
|
3,266
|
| Commercial Portfolio Segment [Member] |
|
|
| Outstanding Principal |
32,812
|
67,181
|
| Remaining Loan Mark |
(3,355)
|
(5,412)
|
| Recorded Investment |
29,457
|
61,769
|
| Consumer Portfolio Segment [Member] |
|
|
| Outstanding Principal |
163
|
220
|
| Remaining Loan Mark |
(22)
|
(25)
|
| Recorded Investment |
$ 141
|
$ 195
|