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Note 9 - Pension and Retirement Plans (Detail) - Weighted average actuarial assumptions used to determine projected benefit obligation
Sep. 30, 2012
Sep. 30, 2011
Domestic [Member]
   
Discount rate: 4.00% 4.75%
International [Member]
   
Discount rate: 4.05% 5.04%
Expected return on plan assets: 4.70% 5.40%
Rate of compensation increase: 1.00% 1.12%