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Note 16 - Income Tax (Details) - Gross Operating Loss Carryforwards (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Operating Loss Carryforwards [Line Items] |  |
Loss Carry Forward | $ 79,932 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | $ 91,957 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Foreign [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Loss Carry Forward | 45,508 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = fsrv_ForeignMember | 46,901 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = fsrv_ForeignMember
Valuation Allowance | 32,937 us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = fsrv_ForeignMember | 41,412 us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = fsrv_ForeignMember
Net | 12,571 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = fsrv_ForeignMember | 5,489 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = fsrv_ForeignMember
Capital Loss Carryforward [Member] | Canada Revenue Agency [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Loss Carry Forward | 4,655 us-gaap_TaxCreditCarryforwardDeferredTaxAsset / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_CanadaRevenueAgencyMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_CapitalLossCarryforwardMember | 939 us-gaap_TaxCreditCarryforwardDeferredTaxAsset / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_CanadaRevenueAgencyMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_CapitalLossCarryforwardMember
Valuation Allowance | 4,655 us-gaap_TaxCreditCarryforwardValuationAllowance / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_CanadaRevenueAgencyMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_CapitalLossCarryforwardMember | 939 us-gaap_TaxCreditCarryforwardValuationAllowance / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_CanadaRevenueAgencyMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_CapitalLossCarryforwardMember
Capital Loss Carryforward [Member] | Internal Revenue Service (IRS) [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Loss Carry Forward |  | 4,197 us-gaap_TaxCreditCarryforwardDeferredTaxAsset / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_CapitalLossCarryforwardMember
Valuation Allowance |  | 4,197 us-gaap_TaxCreditCarryforwardValuationAllowance / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_CapitalLossCarryforwardMember
Capital Loss Carryforward [Member] | Australian Taxation Office [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Loss Carry Forward | 7,434 us-gaap_TaxCreditCarryforwardDeferredTaxAsset / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_AustralianTaxationOfficeMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_CapitalLossCarryforwardMember | 8,123 us-gaap_TaxCreditCarryforwardDeferredTaxAsset / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_AustralianTaxationOfficeMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_CapitalLossCarryforwardMember
Valuation Allowance | 7,434 us-gaap_TaxCreditCarryforwardValuationAllowance / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_AustralianTaxationOfficeMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_CapitalLossCarryforwardMember | 8,123 us-gaap_TaxCreditCarryforwardValuationAllowance / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_AustralianTaxationOfficeMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_CapitalLossCarryforwardMember
Canada Revenue Agency [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Loss Carry Forward | 57,929 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_CanadaRevenueAgencyMember | 72,526 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_CanadaRevenueAgencyMember
Valuation Allowance | 264 us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_CanadaRevenueAgencyMember | 2,438 us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_CanadaRevenueAgencyMember
Net | 57,665 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_CanadaRevenueAgencyMember | 70,088 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_CanadaRevenueAgencyMember
Internal Revenue Service (IRS) [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Loss Carry Forward | 145,269 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember | 164,414 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember
Valuation Allowance | 4,099 us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember | 4,099 us-gaap_OperatingLossCarryforwardsValuationAllowance / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember
Net | 141,170 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember | 160,315 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember
Australian Taxation Office [Member] |  |
Operating Loss Carryforwards [Line Items] |  |
Loss Carry Forward |  | 304 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_AustralianTaxationOfficeMember
Net |  | $ 304 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_AustralianTaxationOfficeMember

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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- Definition The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 30 -Paragraph 5 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6907311&loc=d3e30536-109315 + Details
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- Definition Amount of deferred tax asset, before valuation allowance, attributable to deductible other tax carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 30 -Paragraph 5 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6907311&loc=d3e30536-109315 + Details
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- Definition Amount of valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from tax credit carryforwards for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Valuation Allowance -URI http://asc.fasb.org/extlink&oid=6528051 + Details
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