Note 15 - Fair Value Measurements and Disclosures - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)
|
Dec. 31, 2016 |
Dec. 31, 2015 |
| Investment securities available-for-sale |
$ 73,380,000
|
$ 53,405,000
|
| Fair Value, Measurements, Recurring [Member] |
|
|
| Investment securities available-for-sale |
73,380,000
|
53,405,000
|
| Mortgage loans held-for-sale |
15,373,000
|
|
| Derivative assets |
427,000
|
258,000
|
| Derivative liabilities |
366,000
|
518,000
|
| Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
| Investment securities available-for-sale |
|
|
| Mortgage loans held-for-sale |
|
|
| Derivative assets |
|
|
| Derivative liabilities |
|
|
| Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
| Investment securities available-for-sale |
73,380,000
|
53,405,000
|
| Mortgage loans held-for-sale |
15,373,000
|
|
| Derivative assets |
427,000
|
258,000
|
| Derivative liabilities |
366,000
|
518,000
|
| Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |
|
|
| Investment securities available-for-sale |
|
|
| Mortgage loans held-for-sale |
|
|
| Derivative assets |
|
|
| Derivative liabilities |
|
|
| US Government Agencies Debt Securities [Member] |
|
|
| Investment securities available-for-sale |
3,617,000
|
|
| US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |
|
|
| Investment securities available-for-sale |
3,617,000
|
|
| US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
| Investment securities available-for-sale |
|
|
| US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
| Investment securities available-for-sale |
3,617,000
|
|
| US Government Agencies Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |
|
|
| Investment securities available-for-sale |
|
|
| Collateralized Mortgage Backed Securities [Member] |
|
|
| Investment securities available-for-sale |
39,148,000
|
48,726,000
|
| Collateralized Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] |
|
|
| Investment securities available-for-sale |
39,148,000
|
48,726,000
|
| Collateralized Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
| Investment securities available-for-sale |
|
|
| Collateralized Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
| Investment securities available-for-sale |
39,148,000
|
48,726,000
|
| Collateralized Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |
|
|
| Investment securities available-for-sale |
|
|
| US States and Political Subdivisions Debt Securities [Member] |
|
|
| Investment securities available-for-sale |
4,523,000
|
4,679,000
|
| US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] |
|
|
| Investment securities available-for-sale |
4,523,000
|
4,679,000
|
| US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
| Investment securities available-for-sale |
|
|
| US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
| Investment securities available-for-sale |
4,523,000
|
4,679,000
|
| US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |
|
|
| Investment securities available-for-sale |
|
|
| Asset-backed Securities [Member] |
|
|
| Investment securities available-for-sale |
26,092,000
|
|
| Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member] |
|
|
| Investment securities available-for-sale |
26,092,000
|
|
| Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |
|
|
| Investment securities available-for-sale |
|
|
| Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |
|
|
| Investment securities available-for-sale |
26,092,000
|
|
| Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |
|
|
| Investment securities available-for-sale |
|
|