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Note 12 - Long-term Debt (Details) - Principal Repayments on Long-term Debt (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Principal Repayments on Long-term Debt [Abstract]  
2015 $ 36,396us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
2016 3,716us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
2017 300,661us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
2018 566us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
2019 and thereafter $ 152,009fsrv_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFiveAndThereafter