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Note 2 - Management's Recovery Plans (Details Textual) - USD ($)
12 Months Ended
Mar. 09, 2016
Feb. 25, 2016
Dec. 31, 2015
Dec. 31, 2014
Feb. 26, 2016
Jul. 02, 2015
Gill Family Capital Management [Member] | Subsequent Event [Member] | Promissory Note [Member]            
Subordinated Debt   $ 6,500,000     $ 6,500,000  
Gill Family Capital Management [Member] | Subsequent Event [Member]            
Number of Cash Infusions   3        
Gill Family Capital Management [Member] | Promissory Note [Member]            
Subordinated Debt     $ 5,500,000     $ 5,500,000
Subsequent Event [Member] | Term Loan [Member]            
Additional Amount of Cash to Be Deposited Into a Controlled Cash Collateral Account to be held for one year $ 6,000,000 $ 6,000,000        
Subsequent Event [Member] | Toluca [Member]            
Sale Leaseback Transaction, Net Proceeds, Investing Activities   $ 12,100,000        
Additional Amount of Cash to Be Deposited Into a Controlled Cash Collateral Account to be held for one year $ 6,000,000          
Net Income (Loss) Attributable to Parent     (27,216,000) $ (1,184,000)    
Gain (Loss) on Disposition of Business     7,744,000      
Operating Income (Loss)     (29,644,000) 2,720,000    
Net Cash Provided by (Used in) Operating Activities, Continuing Operations     $ (13,447,000) $ 3,045,000