Note 4 - Loans and Allowance for Loan Losses (Details Textual)
$ in Thousands |
12 Months Ended |
|
Dec. 31, 2016
USD ($)
|
Dec. 31, 2015
USD ($)
|
Dec. 31, 2014
USD ($)
|
| Payments to Acquire Loans Receivable |
$ 2,512
|
$ 8,613
|
$ 3,756
|
| Loans Receivable Acquired, Average Amount Outstanding |
120
|
99
|
|
| Loans Pledged as Collateral |
416,000
|
440,000
|
|
| Loans and Leases Receivable, Gross |
970,975
|
959,275
|
|
| Allowance for Credit Losses, Change in Method of Calculating Impairment |
$ 2,000
|
$ 1,900
|
|
| Financing Receivable, Modifications, Number of Contracts |
0
|
3
|
|
| Financing Receivable, Modifications, Recorded Investment |
$ 22,942
|
$ 23,831
|
|
| Loans and Leases Receivable, Impaired, Commitment to Lend |
$ 0
|
$ 0
|
|
| Financing Receivable, Modifications, Subsequent Default, Number of Contracts |
0
|
0
|
|
| TDR Financing Receivable [Member] |
|
|
|
| Allowance for Loan and Lease Losses, Period Increase (Decrease) |
|
$ 356
|
|
| Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down |
|
$ 0
|
|
| Purchased Loan at Discount [Member] |
|
|
|
| Financing Receivable, Modifications, Purchase Price Discount |
$ 482
|
|
|
| Financing Receivable Modification Discount in Percentage |
15.00%
|
|
|
| Financing Receivable, Modifications, Recorded Investment |
$ 11,000
|
|
|
| Percent of Total Restructed Loans |
47.80%
|
|
|
| Directors, Executive Officers, Principal Shareholders, and Immediate Family Members [Member] |
|
|
|
| Loans and Leases Receivable, Gross |
$ 13,500
|
|
|