Note 14 - Employee Benefit Plans (Details) - Summaries of Changes in Benefit Obligations and Plan Assets and of Funded Status of Pension Plans (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012
Change in benefit obligation:
Benefit obligation at beginning of year	$ 45,561		$ 44,144
Service cost	24	25	25
Interest cost	1,652	1,870	1,870
Actuarial (gain) loss	(3,534)		2,780
Benefits paid	(3,177)		(3,258)
Benefit obligation at end of year	40,526	45,561	45,561
Change in plan assets:
Fair value of plan assets at beginning of year	35,067		32,420
Actual return on plan assets	4,013		4,307
Company contributions	663		1,598
Benefits paid	(3,177)		(3,258)
Fair value of plan assets at end of year	36,566	35,067	35,067
Underfunded status of the plans	(3,960)	(10,494)	(10,494)
Balance sheet assets (liabilities):
Other assets	660	0	0
Accrued liabilities	0	0	0
Other liabilities	(4,620)	(10,494)	(10,494)
Net amount recognized	(3,960)	(10,494)	(10,494)
Pension plans with accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	26,773	45,561	45,561
Accumulated benefit obligation	26,760	45,543	45,543
Fair value of plan assets	$ 22,153	$ 35,067	$ 35,067
Projected benefit obligation and net periodic pension cost assumptions:
Discount rate	4.65%	3.80%	3.80%
Rate of compensation increase	4.00%	4.00%	4.00%
Expected long-term rate of return on plan assets	7.50%		7.75%
Weighted average asset allocation:
Weighted average asset allocations	100.00%	100.00%	100.00%
Total	100.00%	100.00%	100.00%
Equity Securities [Member]
Weighted average asset allocation:
Weighted average asset allocations	46.00%	58.00%	58.00%
Total	46.00%	58.00%	58.00%
Debt Securities [Member]
Weighted average asset allocation:
Weighted average asset allocations	54.00%	42.00%	42.00%
Total	54.00%	42.00%	42.00%

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Defined benefit plan accrued liabilities.

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Defined benefit plan other assets.

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Defined benefit plan other liabilities.

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The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.

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Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

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The aggregate net amount recognized in the balance sheet associated with the defined benefit plan(s). Will normally be the same as the Defined Benefit Plan, Funded Status of Plan, Total.

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The interest rate used to adjust for the time value of money for the plan.

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Expected rate of compensation increases (for pay-related plans).

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An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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The increase in the fair value of plan assets from contributions made by the employer.

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total.

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The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

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Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

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