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Note 8 - Employee Benefit Plans (Detail) - Assumptions Used to Determine Net Benefit Cost	6 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012	Jun. 30, 2011
Defined Benefit Retirment Plan [Member]
Expected return on Assets	7.00%	7.00%	7.00%
Discount rate	5.42%	4.21%	5.25%
Post Retirment Benefit Plan [Member]
Discount rate	4.71%	3.26%	5.11%
Average compensation increase			4.50%

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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