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Note 6 - Borrowings (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2014
Debt Disclosure [Abstract] |
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars) | $ 50
Line of Credit Facility, Borrowing Capacity, Description | Advances are made pursuant to a borrowing base comprised of 85% of eligible accounts receivable plus 60% of eligible direct inventory plus 50% of eligible indirect inventory. Advances are secured by a perfected first priority security interest in accounts receivable and inventory
Line of Credit Facility, Borrowing Base, Percentage of Eligible Accounts Receivable | 85.00%
Line of Credit Facility, Borrowing Base, Percentage of Eligible Direct Inventory | 60.00%
Line of Credit Facility, Borrowing Base, Percentage of Eligible Indirect Inventory | 50.00%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.25%
Ratio of EBITDA to Fixed Charges | 3

X
- Definition The percentage of accounts receivable used to calculate the borrowing base for the revolving line credit. + References No definition available. + Details
Name: | ff_LineOfCreditFacilityBorrowingBasePercentageOfEligibleAccountsReceivable
Namespace Prefix: | ff_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage of eligible direct inventory used to calculate the borrowing base for the revolving line credit. + References No definition available. + Details
Name: | ff_LineOfCreditFacilityBorrowingBasePercentageOfEligibleDirectInventory
Namespace Prefix: | ff_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage of eligible indirect inventory used to calculate the borrowing base for the revolving line credit. + References No definition available. + Details
Name: | ff_LineOfCreditFacilityBorrowingBasePercentageOfEligibleIndirectInventory
Namespace Prefix: | ff_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The ratio of EBITDA to fixed charges. + References No definition available. + Details
Name: | ff_RatioOfEBITDAToFixedCharges
Namespace Prefix: | ff_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DebtDisclosureAbstract
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Period Type: | duration

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- Definition Description of the credit facility's borrowing capacity including discussion of how the borrowing capacity is determined (for example, borrowing capacity based on the amount of current assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityBorrowingCapacityDescription
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Balance Type: | na
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X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration