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Note 4 - Senior Credit Facility, Subordinated Convertible Note, Net - CD Financial, LLC and Other Long Term Debt (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended
Feb. 01, 2019
Jul. 31, 2018
Mar. 17, 2017
Feb. 19, 2016
Dec. 31, 2018
Dec. 31, 2017
Jun. 30, 2018
Jun. 27, 2012
Feb. 21, 2008
Capital Lease Obligations, Total         $ 168   $ 269    
Sale Leaseback Transaction, Net Proceeds, Financing Activities, Total         $ 143      
CD Financial LLC [Member]                  
Debt Instrument, Convertible, Conversion Price   $ 0.65              
Stock Issued During Period, Shares, Conversion of Convertible Securities   8,230,769              
First American Equipment Finance [Member]                  
Capital Lease Obligations, Total     $ 158            
Sale Leaseback Transaction, Monthly Rental Payments     $ 7            
Sale Leaseback Transaction, Imputed Interest Rate     3.86%            
First American Equipment Finance [Member] | Subsequent Event [Member]                  
Capital Lease Obligations, Total $ 233                
Sale Leaseback Transaction, Net Proceeds, Financing Activities, Total 233                
Sale Leaseback Transaction, Monthly Rental Payments $ 10                
Sale Leaseback Transaction, Imputed Interest Rate 7.28%                
CD Financial LLC [Member]                  
Debt Instrument, Interest Rate, Stated Percentage               6.00% 9.50%
Debt Instrument, Face Amount                 $ 4,500
Convertible Notes Payable, Total               $ 5,350  
Debt Instrument, Convertible, Conversion Price               $ 0.65  
Embedded Derivative, Fair Value of Embedded Derivative Liability         $ 9        
CD Financial LLC [Member] | Default Rate [Member]                  
Debt Instrument, Interest Rate, Stated Percentage               10.00%  
Vitamin Realty LLC [Member]                  
Debt Instrument, Face Amount               $ 686  
Term Loan [Member] | Eurodollar [Member]                  
Debt Instrument, Basis Spread on Variable Rate       3.25%          
Amended Loan Agreement [Member]                  
Senior Notes, Total       $ 11,422          
Loans Payable, Noncurrent, Total       $ 3,422          
Line of Credit Facility Covenant Prepayment Provisions Percentage of Excess Cash flow       25.00% 25.00%        
Amended Loan Agreement [Member] | Revolving Credit Facility [Member]                  
Line of Credit Facility, Maximum Borrowing Capacity       $ 8,000          
Amended Loan Agreement [Member] | Revolving Credit Facility [Member] | Eurodollar [Member]                  
Debt Instrument, Basis Spread on Variable Rate       2.75%          
Term Loan [Member] | Scenario Event of Default [Member]                  
Debt Instrument, Interest Rate, Increase (Decrease)       2.00%          
Number of Consecutive Monthly Installments       84          
Number of Consecutive Monthly Installments, Fixed Amount       83          
Debt Instrument, Periodic Payment, Total       $ 41          
Revolving Advances [Member]                  
Line of Credit Facility Covenant Maximum Aggregate Revolving Advance       $ 8,000          
Line of Credit Facility Covenant Aggregate Revolving Advance Receivables Advance Rate       85.00%          
Line of Credit Facility Covenant Aggregate Revolving Advance Inventory Advance Rate       75.00%          
Promissory Note [Member] | CD Financial LLC [Member]                  
Debt Instrument, Face Amount               $ 1,714  
E. Gerald Kay [Member] | Vitamin Realty LLC [Member]                  
Debt Instrument, Interest Rate, Stated Percentage       4.00%