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Note 8 - Accrued Retirement Benefits - Accrued Retirement Benefits (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Pension Plan [Member]
Accrued retirement benefits	$ 2,178	$ 2,540
Supplemental Employee Retirement Plan [Member]
Accrued retirement benefits	4,528	4,468
Deferred Compensation Plan [Member]
Accrued retirement benefits	242	276
Accrued retirement benefits	6,948	7,284
Less current portion	(364)	(391)
Non-current portion of accrued retirement benefits	$ 6,584	$ 6,893

X

- Definition

This represents the entire liability recognized in the balance sheet that is associated with the defined benefit pension plans.

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