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Note 4 - Other (Income), Net (Details) (Other Nonoperating Income (Expense) [Member], USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Other Nonoperating Income (Expense) [Member]
   
Note 4 - Other (Income), Net (Details) [Line Items]    
Gain (Loss) on Disposition of Assets $ 714,000us-gaap_GainLossOnDispositionOfAssets1
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_OtherNonoperatingIncomeExpenseMember
$ 1,516,000us-gaap_GainLossOnDispositionOfAssets1
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_OtherNonoperatingIncomeExpenseMember
Foreign Currency Transaction Gain (Loss), Realized $ 655,000us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_OtherNonoperatingIncomeExpenseMember
$ 298,000us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_OtherNonoperatingIncomeExpenseMember