Note 11 - Employee Benefit Programs (Detail) - The Company’s investment policy includes a periodic review of the Pension Plan’s investment in the v (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Fair value of plan assets	$ 66,832	$ 58,625	$ 59,728
Cash [Member] \| Total [Member]
Fair value of plan assets	289	279
Cash [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	289	279
Money Market Funds [Member] \| Total [Member]
Fair value of plan assets	4,061	2,826
Money Market Funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	4,061	2,826
Equity Securities [Member] \| Common Stock [Member] \| Total [Member]
Fair value of plan assets	3,489	5,281
Equity Securities [Member] \| Common Stock [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	3,489	5,281
Equity Securities [Member] \| Preferred Stock [Member] \| Total [Member]
Fair value of plan assets	159	226
Equity Securities [Member] \| Preferred Stock [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	159	226
Equity Securities [Member] \| Mutual Funds [Member] \| Total [Member]
Fair value of plan assets	30,540	23,847
Equity Securities [Member] \| Mutual Funds [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	30,540	23,847
Real Estate Investment Trusts [Member] \| Total [Member]
Fair value of plan assets	2,675
Real Estate Investment Trusts [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	2,675
Corporate Debt Securities [Member] \| Total [Member]
Fair value of plan assets	18,581	13,444
Corporate Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	18,581	13,444
Managed Futures [Member] \| Total [Member]
Fair value of plan assets	1,725	1,906
Managed Futures [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	1,725	1,906
Managed Futures [Member]
Fair value of plan assets	1,725	1,906	2,024
Hedge Funds [Member] \| Total [Member]
Fair value of plan assets	5,313	3,587
Hedge Funds [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	5,313	3,587
Hedge Funds [Member]
Fair value of plan assets	5,313	3,587	2,195
Total [Member] \| Total [Member]
Fair value of plan assets	66,832	58,625
Total [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	37,152	32,072
Total [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets	22,642	21,060
Total [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets	7,038	5,493
Total [Member]
Fair value of plan assets	7,038	5,493	4,219
Real Estate [Member] \| Total [Member]
Fair value of plan assets		2,439
Real Estate [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets		2,439
US Treasury Securities [Member] \| Total [Member]
Fair value of plan assets		3,539
US Treasury Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets		3,539
US Government Agencies Debt Securities [Member] \| Total [Member]
Fair value of plan assets		1,251
US Government Agencies Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair value of plan assets		$ 1,251

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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