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Note 11 - Borrowings (Details) (Revolving Credit Facility [Member], USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Revolving Credit Facility [Member]
   
Note 11 - Borrowings (Details) [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars) $ 50,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
 
Line of Credit Facility, Borrowing Capacity, Description Advances are made pursuant to a borrowing base comprised of 85% of eligible accounts plus 60% of eligible direct inventory plus 50% of eligible indirect inventory.  
Line of Credit Facility, Borrowing Base, Percentage of Eligible Accounts Receivable 85.00%ff_LineOfCreditFacilityBorrowingBasePercentageOfEligibleAccountsReceivable
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
 
Line of Credit Facility, Borrowing Base, Percentage of Eligible Direct Inventory 60.00%ff_LineOfCreditFacilityBorrowingBasePercentageOfEligibleDirectInventory
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
 
Line of Credit Facility, Borrowing Base, Percentage of Eligible Indirect Inventory 50.00%ff_LineOfCreditFacilityBorrowingBasePercentageOfEligibleIndirectInventory
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
 
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.25%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
 
Ratio of EBITDA to Fixed Charges 3ff_RatioOfEBITDAToFixedCharges
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
 
Long-term Line of Credit (in Dollars) $ 0us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
$ 0us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember