| **Note 5 - Benfit Plans (Details) (USD $)Share data in Thousands, unless otherwise specified** | 3 Months Ended |
|------------------------------------------------------------------------------------------------|----------------|
||
| **Compensation and Retirement Disclosure [Abstract]**                                          |           |   |
| Defined Contribution Plan, Employer Discretionary Contribution Amount                          | $ 0            |   |
| Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year          | 500,000        |   |
| Stock Issued During Period, Shares, Employee Benefit Plan (in Shares)                          | 22             | 97 |
| Stock Issued During Period, Value, Employee Benefit Plan                                       | $ 52,000       | $ 70,000 |

| X                                                                                                                                                                               |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_CompensationAndRetirementDisclosureAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                  |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period.
+ References
No definition available.
+ Details**Name:**us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of discretionary contributions made by an employer to a defined contribution plan.
+ References
No definition available.
+ Details**Name:**us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                      |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of shares issued during the period to an employee benefit plan, such as a defined contribution or defined benefit plan.
+ References
No definition available.
+ Details**Name:**us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan**Namespace Prefix:**us-gaap_**Data Type:**xbrli:sharesItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Value of shares issued during the period to an employee benefit plan, such as a defined contribution or defined benefit plan.
+ References
No definition available.
+ Details**Name:**us-gaap_StockIssuedDuringPeriodValueEmployeeBenefitPlan**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |