XML 11 R19.htm IDEA: XBRL DOCUMENT
v3.19.3

Convertible Note Payable | 9 Months Ended
--- | ---
Sep. 30, 2019
Debt Disclosure [Abstract] |
Convertible Note Payable | 13. Convertible note payable. In October 2018, the Company issued a convertible note payable in the amount of $1,000,000 in connection with the acquisition of EnP Investments LLC. The convertible note is due on or before September 30, 2023 with 5% interest due per year. At the option of the holder, the Note may be converted to 400,000 shares of the Company’s common stock. The Company has the option to extend the note to no later than September 30, 2028. In June 2019, the holder opted to convert $500,000 of the convertible note payable into 200,000 shares of the Company’s common stock.

X
- Definition Convertible Note Payable [Text Block] + References No definition available. + Details
Name: | FSI_ConvertibleNotePayableTextBlock
Namespace Prefix: | FSI_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration