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Note 3 - Acquisitions (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Note 3 - Acquisitions (Details) [Line Items] |  |  |
Number of Businesses Acquired | 17 us-gaap_NumberOfBusinessesAcquired | 11 us-gaap_NumberOfBusinessesAcquired | 5 us-gaap_NumberOfBusinessesAcquired
Business Combination Gain on Revaluation of Previously Held Equity Investment |  | $ 820 fsrv_BusinessCombinationGainOnRevaluationOfPreviouslyHeldEquityInvestment |
Business Combination, Acquisition Related Costs | 9,454 us-gaap_BusinessCombinationAcquisitionRelatedCosts | 3,336 us-gaap_BusinessCombinationAcquisitionRelatedCosts | 5,032 us-gaap_BusinessCombinationAcquisitionRelatedCosts
Business Acquisition, Goodwill, Expected Tax Deductible Amount | 7,620 us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount | 2,823 us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount | 2,214 us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount
Business Combination, Contingent Consideration, Liability | 27,136 us-gaap_BusinessCombinationContingentConsiderationLiability |  |
CRE Segment [Member] |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |
Number of Businesses Acquired | 9 us-gaap_NumberOfBusinessesAcquired / us-gaap_BusinessAcquisitionAxis = fsrv_CRESegmentMember | 8 us-gaap_NumberOfBusinessesAcquired / us-gaap_BusinessAcquisitionAxis = fsrv_CRESegmentMember | 2 us-gaap_NumberOfBusinessesAcquired / us-gaap_BusinessAcquisitionAxis = fsrv_CRESegmentMember
RRE Segment [Member] |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |
Number of Businesses Acquired | 5 us-gaap_NumberOfBusinessesAcquired / us-gaap_BusinessAcquisitionAxis = fsrv_RRESegmentMember | 3 us-gaap_NumberOfBusinessesAcquired / us-gaap_BusinessAcquisitionAxis = fsrv_RRESegmentMember | 2 us-gaap_NumberOfBusinessesAcquired / us-gaap_BusinessAcquisitionAxis = fsrv_RRESegmentMember
Property Services Segment [Member] |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |
Number of Businesses Acquired | 3 us-gaap_NumberOfBusinessesAcquired / us-gaap_BusinessAcquisitionAxis = fsrv_PropertyServicesSegmentMember |  |
California Closets [Member] |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |
Number of Businesses Acquired | 2 us-gaap_NumberOfBusinessesAcquired / us-gaap_BusinessAcquisitionAxis = fsrv_CaliforniaClosetsMember |  |
Property Services [Member] |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |
Number of Businesses Acquired |  |  | 1 us-gaap_NumberOfBusinessesAcquired / us-gaap_BusinessAcquisitionAxis = fsrv_PropertyServicesMember
Acquisitions After December 31, 2008 [Member] |  |  |
Note 3 - Acquisitions (Details) [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability | 27,136 us-gaap_BusinessCombinationContingentConsiderationLiability / us-gaap_BusinessAcquisitionAxis = fsrv_AcquisitionsAfterDecember312008Member |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low |  | 33,279 us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow / us-gaap_BusinessAcquisitionAxis = fsrv_AcquisitionsAfterDecember312008Member |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  | 36,163 us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh / us-gaap_BusinessAcquisitionAxis = fsrv_AcquisitionsAfterDecember312008Member |
Contingent Consideration Paid | $ 25,814 fsrv_ContingentConsiderationPaid / us-gaap_BusinessAcquisitionAxis = fsrv_AcquisitionsAfterDecember312008Member | $ 1,994 fsrv_ContingentConsiderationPaid / us-gaap_BusinessAcquisitionAxis = fsrv_AcquisitionsAfterDecember312008Member | $ 5,492 fsrv_ContingentConsiderationPaid / us-gaap_BusinessAcquisitionAxis = fsrv_AcquisitionsAfterDecember312008Member

X
- Definition The business combination gain on revaluation of previously held equity investment. + References No definition available. + Details
Name: | fsrv_BusinessCombinationGainOnRevaluationOfPreviouslyHeldEquityInvestment
Namespace Prefix: | fsrv_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The contingent consideration paid. + References No definition available. + Details
Name: | fsrv_ContingentConsiderationPaid
Namespace Prefix: | fsrv_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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- Definition The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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Balance Type: | credit
Period Type: | instant

X
- Definition For contingent consideration arrangements and indemnification assets recognized in connection with a business combination, this element represents an estimate of the low-end of the potential range (undiscounted) of the consideration which may be paid. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition Amount of liability recognized arising from contingent consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of businesses acquired by the entity during the period. + References No definition available. + Details
Name: | us-gaap_NumberOfBusinessesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Details
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- Details
Name: | us-gaap_BusinessAcquisitionAxis=fsrv_CaliforniaClosetsMember
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- Details
Name: | us-gaap_BusinessAcquisitionAxis=fsrv_CRESegmentMember
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- Details
Name: | us-gaap_BusinessAcquisitionAxis=fsrv_PropertyServicesMember
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Period Type: |

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- Details
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- Details
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