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v2.4.1.9

Revenue Recognition Policy (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2015 unit contract | Dec. 31, 2013 | Dec. 31, 2014 contract
Number of contracts in progress that were identified as a loss contract (in contracts) | 1 ftek_NumberofContractsinProgressthatwereIdentifiedasaLossContract |  | 1 ftek_NumberofContractsinProgressthatwereIdentifiedasaLossContract
Loss on contract termination | $ 5 us-gaap_LossOnContractTermination | $ 4 us-gaap_LossOnContractTermination |
Unbilled receivables, current | 9,836 us-gaap_UnbilledReceivablesCurrent |  | 9,904 us-gaap_UnbilledReceivablesCurrent
Billings in excess of cost, current | $ 2,792 us-gaap_BillingsInExcessOfCostCurrent |  | $ 2,994 us-gaap_BillingsInExcessOfCostCurrent
Number of units with APC technology (in units) | 1,000 ftek_NumberofUnitswithAPCTechnology |  |
Minimum |  |  |
Contract term (in months) | 8 months |  |
Critical operational measurements (in measurements) | 3 ftek_CriticalOperationalMeasurements / us-gaap_RangeAxis = us-gaap_MinimumMember |  |
Maximum |  |  |
Contract term (in months) | 16 months |  |
Critical operational measurements (in measurements) | 4 ftek_CriticalOperationalMeasurements / us-gaap_RangeAxis = us-gaap_MaximumMember |  |

X
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- Definition Number of Contracts in Progress that were Identified as a Loss Contract + References No definition available. + Details
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- Definition Number of Units with APC Technology + References No definition available. + Details
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X
- Definition Liability attributable to (i) billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts (billings) and revenue recognized based, for example, on costs incurred to estimated total costs at period end or (ii) contractually invoiced amounts (billings) in excess of costs incurred and accumulated under the completed contract accounting method that are expected to be realized within one year or one operating cycle, whichever is longer, from the reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 35 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51671739&loc=d3e57788-111642 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 35 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=51671739&loc=d3e57807-111642 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 35 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51671739&loc=d3e57795-111642 + Details
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- Definition The loss recognized on termination of a contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 912 -SubTopic 275 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51673126&loc=d3e54681-109401 + Details
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X
- Definition Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer. + References No definition available. + Details
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- Details
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