Note 13 - Benefit Plans (Details Textual) shares in Thousands, $ in Thousands		12 Months Ended
Mar. 15, 2019	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($) shares
Defined Benefit Pension Plan Minimum Eligible Age Of Employee		21 years
Defined Benefit Plan, Plan Assets, Contributions by Employer			$ 205
Defined Benefit Plan, Accumulated Benefit Obligation		$ 0	0
Defined Contribution Plan, Employer Matching Contribution, Percent of Match		1.00%
Defined Contribution Plan, Employer Matching Contribution for Employee's Contribution Between Two and Six Percent, Percent of Match		50.00%
Defined Contribution Plan, Minimum Age for Eligibility		19 years
Defined Contribution Plan, Employer Matching Contribution, Vesting Period		2 years
Share Based Compensation Arrangement by Share Based Payment Award Vesting Percentage Under Award Requisite Service Period		100.00%
Employee Matching Contribution Vesting Period Under Plan		2 years
Employee Stock Ownership Plan (ESOP), Compensation Expense		$ 0	$ 0
Employee Stock Ownership Plan (ESOP), Shares in ESOP, Total \| shares			0
The 401(k) Plan [Member]
Defined Contribution Plan, Cost		812	$ 770
Supplemental Employee Retirement Plan [Member]
Defined Contribution Plan, Cost		$ 220
Defined Contribution Plan, Number of Employees	3
Defined Contribution Plan, Retirement Benefits Payable, Number of Monthly Payments	180
Minimum [Member]
Period of Service Credit by Employee		1 year
Defined Contribution Plan, Stated Percentage of Employees Contribution		2.00%
Maximum [Member]
Defined Contribution Plan, Stated Percentage of Employees Contribution		6.00%

The minimum eligible age of employee under the defined benefit pension plan.

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- Definition

The percentage the employer matches of the employee's percentage contribution between two and six percent.

+ References

No definition available.

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- Definition

The period of time over which the employer's matching contributions vest under the benefit plan.

+ References

No definition available.

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- Definition

The minimum age an employee must be in order to participate in the benefit plan.

+ References

No definition available.

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- Definition

The number of fixed, monthly payments under the retirement benefit plan.

+ References

No definition available.

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- Definition

Represents state percentage of employees contribution for defined contribution plan.

+ References

No definition available.

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- Definition

The vesting period under Employee Stock Ownership Plan.

+ References

No definition available.

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- Definition

The period of credited service and hired prior for employee.

+ References

No definition available.

+ Details

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- Definition

Percentage of vesting of participants under share-based payment arrangement.

+ References

No definition available.

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- Definition

Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

+ References

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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- Definition

Amount of cost for defined contribution plan.

+ References

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

+ Details

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- Definition

Number of employees eligible to participate in defined contribution plan.

+ References

No definition available.

+ Details

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- Definition

The amount of plan compensation cost recognized during the period.

+ References

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- Definition

Sum of the allocated, committed-to-be-released and suspense shares of the entity held by the plan.

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