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10. STOCK OPTIONS (Details Narrative) (USD $) | 3 Months Ended | 12 Months Ended | 3 Months Ended
--- | --- | --- | ---
Mar. 31, 2014 | Dec. 31, 2013 | Mar. 31, 2014 Consultants | Mar. 31, 2013 Consultants | Mar. 31, 2014 Employees | Mar. 31, 2013 Employees
Options granted | 212,000 | 233,000 | 85,000 | 55,000 | 127,000 | 128,000
Stock granted expenses |  |  | $ 6,161 | $ 4,150 | $ 9,205 | $ 9,674
Additional Expenses due to Options granted |  |  | $ 1,871 | $ 3,609 | $ 3,456 | $ 6,437

X
- Definition Custom Element. + References No definition available. + Details
Name: | FSI_AdditionalExpensesDueToOptionsGranted
Namespace Prefix: | FSI_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Custom Element. + References No definition available. + Details
Name: | FSI_StockGrantedExpenses
Namespace Prefix: | FSI_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration