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Note 5 - Morganton Sale (Details Textual) - USD ($)
Jul. 09, 2015
Sep. 30, 2015
Morganton [Member] | Certain Assets [Member]    
Proceeds from Sales of Business, Affiliate and Productive Assets $ 10,500,000  
Morganton [Member] | Certain Assets and Liabilities [Member]    
Proceeds from Sales of Business, Affiliate and Productive Assets 2,000,000  
Morganton [Member] | Morganton Facility [Member]    
Proceeds from Sales of Business, Affiliate and Productive Assets 3,200,000  
Morganton [Member]    
Proceeds from Sales of Business, Affiliate and Productive Assets 15,700,000  
Gain (Loss) on Disposition of Business 7,744,000  
Meritor Note [Member]    
Debt Instrument, Face Amount 3,047,000  
Meritor Note Amendment [Member]    
Secured Debt $ 412,000 $ 321,000