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Business Acquisitions Acquired Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | 0 Months Ended
--- | --- | ---
Dec. 31, 2014 | Apr. 30, 2014
Business Acquisition [Line Items] |  |
Useful Life (Yrs) | 5 years |
PECO and FGC Acquisitions [Member] |  |
Business Acquisition [Line Items] |  |
Amount |  | $ 5,158 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = ftek_PECOandFGCAcquisitionsMember
Useful Life (Yrs) |  | 5 years 3 months 18 days
PECO and FGC Acquisitions [Member] | Order backlog [Member] |  |
Business Acquisition [Line Items] |  |
Amount |  | 1,172 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = ftek_PECOandFGCAcquisitionsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OrderOrProductionBacklogMember
Useful Life (Yrs) |  | 1 year
PECO and FGC Acquisitions [Member] | Trademarks [Member] |  |
Business Acquisition [Line Items] |  |
Amount |  | 90 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = ftek_PECOandFGCAcquisitionsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember
Useful Life (Yrs) |  | 2 years
PECO and FGC Acquisitions [Member] | Customer relationships [Member] |  |
Business Acquisition [Line Items] |  |
Amount |  | 870 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = ftek_PECOandFGCAcquisitionsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember
Useful Life (Yrs) |  | 4 years
PECO and FGC Acquisitions [Member] | Developed technology rights [Member] |  |
Business Acquisition [Line Items] |  |
Amount |  | 3,230 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = ftek_PECOandFGCAcquisitionsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember
Useful Life (Yrs) |  | 7 years
PECO and FGC Acquisitions [Member] | Net assumed contractual obligations [Member] |  |
Business Acquisition [Line Items] |  |
Amount |  | $ (204)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_BusinessAcquisitionAxis = ftek_PECOandFGCAcquisitionsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = ftek_AssumedDeferredRevenueObligationMember
Useful Life (Yrs) |  | 1 year

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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- Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 + Details
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- Details
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Balance Type: |
Period Type: |