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Note 8 - Stockholders' Deficit - Warrant Activity (Details) - $ / shares | 12 Months Ended
--- | ---
Jun. 30, 2017 | Jun. 30, 2016
Shares purchasable under outstanding warrants (in shares) | 2,804,010 |
Shares purchasable under outstanding warrants, weighted average exercise price (in dollars per share) | $ 2 |
Shares purchasable under outstanding warrants, weighted average exercise price (in dollars per share) | $ 1.97 | $ 2
Stock purchase warrants expired (in shares) | (190,000) |
Stock purchase warrants expired, weighted average exercise price (in dollars per share) | $ 3 |
Stock purchase warrants exchanged (in shares) | (271,420) |
Stock purchase warrants exchanged, weighted average exercise price (in dollars per share) | $ 1.40 |
Shares purchasable under outstanding warrants (in shares) | 2,342,590 | 2,804,010
Minimum [Member] |  |
Shares purchasable under outstanding warrants, remaining contractual term (Year) | 43 days | 142 days
Maximum [Member] |  |
Shares purchasable under outstanding warrants, remaining contractual term (Year) | 1 year 200 days | 2 years 182 days

X
- Definition Represents the weighted average exercise price of warrants or rights which exchanged during the period. + References No definition available. + Details
Name: | flux_ClassOfWarrantOrRightExchangedInPeriodWeightedAverageExercisePriceOfWarrantsOrRights
Namespace Prefix: | flux_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the weighted average exercise price of warrants or rights which expired during the period. + References No definition available. + Details
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X
- Definition Represents the weighted average exercise price of warrants or rights. + References No definition available. + Details
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Namespace Prefix: | flux_
Data Type: | num:perShareItemType
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X
- Definition The remaining contractual term of each class of warrants or rights outstanding. + References No definition available. + Details
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X
- Definition Number of warrants or rights exchanged during the period. + References No definition available. + Details
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X
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X
- Definition Number of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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