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Note 14 - Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

		Year Ended December 31,
		2014				2013
Accumulated benefit obligation at end of period		$	68,376			$	52,825
Change in projected benefit obligation
Projected benefit obligation at beginning of period		$	52,825			$	59,744
Interest cost			2,591				2,423
Net actuarial loss (gain)			14,791				(7,695	)
Benefits paid			(1,831				(1,647	)
Projected benefit obligation at end of period		$	68,376			$	52,825
Change in plan assets
Fair value of plan assets at beginning of period		$	42,440			$	36,570
Actual return on plan assets			3,110				6,465
Company contributions			1,733				1,052
Benefits paid			(1,831				(1,647	)
Fair value of plan assets at end of period		$	45,452			$	42,440
Funded status: accrued pension liability included in other long-term liabilities		$	(22,924			$	(10,385	)
Amounts recognized in accumulated other comprehensive income
Net actuarial loss		$	(13,243			$	(4,393	)

Schedule of Net Benefit Costs [Table Text Block]

		Year Ended December 31,
		2014				2013				2012
Components of net periodic pension (benefit) cost:
Interest cost		$	2,591			$	2,423			$	2,453
Expected return on plan assets			(2,933	)			(2,520	)			(2,398	)
Amortization of net loss			106				1,108				909
Net periodic pension (benefit) cost		$	(236	)		$	1,011			$	964

Schedule of Assumptions Used [Table Text Block]

		December 31,
		2014				2013
Discount rate - salaried pension plan			3.97	%			4.98	%
Discount rate - hourly pension plan			3.99	%			5.01	%
Rate of compensation increase (1)			n/a				n/a

Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]

		Year Ended December 31,
		2014				2013				2012
Discount rate			5.01	%			4.14	%			4.65	%
Expected long-term rate of return on plan assets			6.88				6.95				7.57
Rate of compensation increase (1)			n/a				n/a				n/a

Schedule of Allocation of Plan Assets [Table Text Block]

						December 31, 2014								December 31, 2013
Asset Category		Target				Dollars				%				Dollars				%
Fixed Income			24	%		$	7,400				16	%		$	7,307				17	%
Domestic equity			49	%			24,373				54	%			23,903				56	%
International equity			17	%			8,869				19	%			7,424				18	%
Real estate			10	%			4,810				11	%			3,806				9	%
Total			100	%		$	45,452				100	%		$	42,440				100	%

Schedule of Fair Value of Plan Assets [Table Text Block]

		Total				Quoted Prices in Active Markets for Identical Asset (Level 1)				Significant Observable Inputs (Level 2)				Significant Unobservable Inputs (Level 3)
Mutual fund		$	42,267			$	42,267			$	-			$	-
Other investments			3,185				-				-				3,185
Total		$	45,452			$	42,267			$	-			$	3,185

		Total				Quoted Prices in Active Markets for Identical Asset (Level 1)				Significant Observable Inputs (Level 2)				Significant Unobservable Inputs (Level 3)
Mutual fund		$	39,759			$	39,759			$	-			$	-
Collective trust			2,681				-				2,681				-
Total		$	42,440			$	39,759			$	2,681			$	-

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

		Other Investments
Balance as of December 31, 2013		$	-
Purchases			3,100
Realized gains			85
Balance as of December 31, 2014		$	3,185

Schedule of Expected Benefit Payments [Table Text Block]

Year
2015			$	1,888
2016				1,998
2017				2,185
2018				2,319
2019				2,430
2020 - 2024				14,500

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