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Note 1 - Organization and Significant Accounting Policies (Detail) - Allowance for Doubtful Accounts (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  |  |  |  |  |
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2012 Including Foreign Currency Translation [Member] | Dec. 31, 2011 Including Foreign Currency Translation [Member] | Dec. 31, 2010 Including Foreign Currency Translation [Member] | Dec. 31, 2012 Beginning of Period [Member] | Dec. 31, 2011 Beginning of Period [Member] | Dec. 31, 2009 Beginning of Period [Member] | Dec. 31, 2012 End of Period [Member] | Dec. 31, 2011 End of Period [Member] | Dec. 31, 2009 End of Period [Member]
Allowance for Doubtful Accounts Balance |  |  |  |  |  |  | $ 430 | $ 82 | $ 70 | $ 460 | $ 430 | $ 82
Provision Charged to Expense | 26 | 348 | 12 | 246 | 510 | 50 |  |  |  |  |  |
Bad Debt Write off / Recoveries | (216) | (162) | (38) |  |  |  |  |  |  |  |  |
Allowance for Doubtful Accounts Balance |  |  |  |  |  |  | $ 430 | $ 82 | $ 70 | $ 460 | $ 430 | $ 82

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- Definition Amount of direct write-downs or recoveries of receivables charged against the allowance for doubtful accounts. + References No definition available. + Details
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Namespace Prefix: | ftek_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5074-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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Period Type: | instant

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- Definition Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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Period Type: | duration