Note 9 - Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2013

Note 9 - Retirement Plans (Tables) [Line Items]

Schedule of Net Funded Status [Table Text Block]

	December 31,
	2013			2012
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$	83,236		$	67,033
Service cost		5,165			4,452
Interest cost		3,553			3,315
Actuarial (gains) losses		(7,158	)		9,546
Benefits paid		(1,263	)		(1,110	)
Projected benefit obligation at end of year	$	83,533		$	83,236
Change in plan assets:
Fair value of pension plan assets at beginning of year	$	46,662		$	35,011
Actual return on plan assets		8,216			3,728
Company contributions		4,448			9,033
Benefits paid		(1,263	)		(1,110	)
Fair value of pension plan assets at end of year		58,063			46,662
Funded status of pension plan	$	(25,470	)	$	(36,574	)
Amounts recognized in our balance sheets consist of:
Accrued benefit cost	$	(10,337	)	$	(6,336	)
Accumulated other comprehensive income		(15,133	)		(30,238	)
Net liability recognized	$	(25,470	)	$	(36,574	)

Schedule of Assumptions Used [Table Text Block]

	Year Ended December 31,
	2013			2012
Weighted-average assumptions used to determine net periodic benefit cost for our active pension plan:
Discount rate		4.31	%		4.84	%
Expected long-term rate of return on pension plan assets		7.00	%		7.00	%
Estimated rate of increase in compensation levels		5.63	%		5.63	%

	As of December 31,
	2013			2012
Weighted-average assumptions used to determine benefit obligations:
Discount rate		4.97	%		4.31	%
Estimated rate of increase in compensation levels		5.63	%		5.63	%

Schedule of Net Benefit Costs [Table Text Block]

	Year Ended December 31,
	2013			2012			2011
Components of net periodic pension cost:
Service cost	$	5,165		$	4,452		$	3,447
Interest cost		3,553			3,315			2,943
Expected return on plan assets		(3,400	)		(2,609	)		(2,351	)
Recognized net actuarial loss		3,131			2,527			958
Net periodic pension cost	$	8,449		$	7,685		$	4,997

Schedule of Expected Benefit Payments [Table Text Block]

Years	Amount
2014	$	1,838
2015		1,981
2016		2,216
2017		2,463
2018		2,730
2019 - 2023		20,973

Defined Benefit Plan, Fair Value of Plan Assets [Table Text Block]

	As of December 31, 2013
	Level 1		Level 2		Level 3		Total
Assets:
Insurance general account	$	-	$	18,759	$	-	$	18,759
Cash management accounts		-		1,959		-		1,959
Equity accounts		-		34,603		-		34,603
Fixed income account		-		2,742		-		2,742
Total	$	-	$	58,063	$	-	$	58,063

	As of December 31, 2012
	Level 1		Level 2		Level 3		Total
Assets:
Insurance general account	$	-	$	17,381	$	-	$	17,381
Cash management accounts		-		1,457		-		1,457
Equity accounts		-		24,911		-		24,911
Fixed income account		-		2,913		-		2,913
Total	$	-	$	46,662	$	-	$	46,662

Asset Categories [Member]

Note 9 - Retirement Plans (Tables) [Line Items]

Schedule of Allocation of Plan Assets [Table Text Block]

	As of December 31,
	2013			2012
Asset category:
Insurance general account		32	%		37	%
Cash management accounts		3	%		3	%
Equity accounts		60	%		54	%
Fixed income account		5	%		6	%
Total		100	%		100	%

Asset Classes [Member]

Note 9 - Retirement Plans (Tables) [Line Items]

Schedule of Allocation of Plan Assets [Table Text Block]

	Target Range
Asset class:
Large cap equities	23%	to	91%
Mid cap equities	0%	to	15%
Small cap equities	0%	to	16%
International equities	5%	to	25%
Fixed income	0%	to	30%
Cash	0%	to	20%

Capital Accumulation Plan [Member]

Note 9 - Retirement Plans (Tables) [Line Items]

Schedule of Changes in Projected Benefit Obligations [Table Text Block]

	Year Ended December 31,
	2013				2012				2011
	Shares		Amount		Shares		Amount		Shares		Amount
Matching contributions to the Capital Accumulation Plan		5,235	$	28		14,293	$	26		13,753	$	29