Quarterly report pursuant to Section 13 or 15(d)

Industry Segments And Financial Information About Foreign And Domestic Operations (Details)

v2.4.1.9
Industry Segments And Financial Information About Foreign And Domestic Operations (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Dec. 31, 2014
segment
Dec. 31, 2013
Sep. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]      
Number of reportable segments 1us-gaap_NumberOfReportableSegments    
Net Revenues to External Customers $ 6,659us-gaap_Revenues $ 6,690us-gaap_Revenues  
Long-Lived Asset 1,630us-gaap_NoncurrentAssets   1,768us-gaap_NoncurrentAssets
Sales Less Than Five Percent [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Concentration risk, percentage 5.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= fhco_SalesLessThanFivePercentMember
   
Sales Exceeding Ten Percent [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Concentration risk, percentage 10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= fhco_SalesExceedingTenPercentMember
   
Brazil [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net Revenues to External Customers 3,502us-gaap_Revenues
/ us-gaap_StatementGeographicalAxis
= country_BR
    
Zimbabwe [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net Revenues to External Customers 963us-gaap_Revenues
/ us-gaap_StatementGeographicalAxis
= country_ZW
    
South Africa [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net Revenues to External Customers 686us-gaap_Revenues
/ us-gaap_StatementGeographicalAxis
= country_ZA
1,656us-gaap_Revenues
/ us-gaap_StatementGeographicalAxis
= country_ZA
 
U.S. [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net Revenues to External Customers 541us-gaap_Revenues
/ us-gaap_StatementGeographicalAxis
= country_US
710us-gaap_Revenues
/ us-gaap_StatementGeographicalAxis
= country_US
 
Long-Lived Asset 77us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= country_US
  88us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= country_US
Cameroon [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net Revenues to External Customers 488us-gaap_Revenues
/ us-gaap_StatementGeographicalAxis
= country_CM
    
Angola [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net Revenues to External Customers    2,476us-gaap_Revenues
/ us-gaap_StatementGeographicalAxis
= country_AO
 
Congo [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net Revenues to External Customers    650us-gaap_Revenues
/ us-gaap_StatementGeographicalAxis
= country_CG
 
Malaysia [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net Revenues to External Customers        
Long-Lived Asset 1,412us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= country_MY
  1,528us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= country_MY
U.K. [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net Revenues to External Customers        
Long-Lived Asset 141us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= country_GB
  152us-gaap_NoncurrentAssets
/ us-gaap_StatementGeographicalAxis
= country_GB
Other Countries [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Net Revenues to External Customers $ 479us-gaap_Revenues
/ us-gaap_StatementGeographicalAxis
= fhco_OtherCountriesMember
$ 1,198us-gaap_Revenues
/ us-gaap_StatementGeographicalAxis
= fhco_OtherCountriesMember