2.4.0.80034 - Disclosure - NOTE 11 - OPTIONS AND WARRANTS - Summary of stock option activity (Details)truefalsefalse1false USDfalsefalse$From2013-01-01to2013-06-30http://www.sec.gov/CIK0001024920duration2013-01-01T00:00:002013-06-30T00:00:00SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDPSharesDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$1true 1us-gaap_DebtDisclosureAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Debt Disclosure [Abstract]2false 2us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrossus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse300000300000falsefalsefalsexbrli:sharesItemTypesharesGross number of share options (or share units) granted during the period.No definition available.false1Granted, Number of Shares3false 2us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercisedus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesNumber of share options (or share units) exercised during the current period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 false1Exercised, Number of Shares4false 2us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse00falsefalsefalsexbrli:sharesItemTypesharesNumber of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 false1Cancelled, Number of Shares5false 2us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumberus-gaap_truenainstantfalsefalsefalsefalsefalsefalsetruefalseperiodEndLabel1truefalsefalse370000370000falsefalsefalsexbrli:sharesItemTypesharesNumber of options outstanding, including both vested and non-vested options.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 false1Outstanding, Number of Shares, at June 30, 20136false 2us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePriceus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse1.651.65USD$falsetruefalsenum:perShareItemTypedecimalWeighted average per share amount at which grantees can acquire shares of common stock by exercise of options.No definition available.false3Granted, Weighted Average Exercise Price7false 2us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePriceus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse00USD$falsetruefalsenum:perShareItemTypedecimalWeighted average price at which option holders acquired shares when converting their stock options into shares.No definition available.false3Exercised, Weighted Average Exercise Price8false 2us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePriceus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse00USD$falsetruefalsenum:perShareItemTypedecimalWeighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.No definition available.false3Cancelled, Weighted Average Exercise Price9false 2us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceus-gaap_truenainstantfalsefalsefalsefalsefalsefalsetruefalseperiodEndLabel1truefalsefalse1.341.34USD$falsetruefalsenum:perShareItemTypedecimalWeighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 false3Outstanding, Weighted Average Exercise Price, at June 30, 2013falseNOTE 11 - OPTIONS AND WARRANTS - Summary of stock option activity (Details) (USD $)UnKnownNoRoundingNoRoundingUnKnowntruefalsefalseSheethttp://FLST/role/Note11-OptionsAndWarrants-SummaryOfStockOptionActivityDetails19