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Note 5 - Senior Credit Facility, Subordinated Convertible Note Payable, net - CD Financial, LLC and other Long Term Debt (Detail) (USD $)
 60 Months Ended
Jun. 30, 2017
Dec. 31, 2012
Jun. 30, 2012
Jun. 27, 2012
Dec. 31, 2012
Default Rate [Member]
CD Financial LLC [Member]
Dec. 31, 2012
CD Financial LLC [Member]
Promissory Note [Member]
Dec. 31, 2012
CD Financial LLC [Member]
Jun. 30, 2012
CD Financial LLC [Member]
Feb. 21, 2008
CD Financial LLC [Member]
Dec. 31, 2012
Vitamin Realty LLC [Member]
E Gerald Kay [Member]
Dec. 31, 2012
Vitamin Realty LLC [Member]
Dec. 31, 2012
E Gerald Kay [Member]
Dec. 31, 2012
Term Loan [Member]
Jun. 30, 2012
Term Loan [Member]
Jun. 27, 2012
Term Loan [Member]
Dec. 31, 2012
Revolving Credit Facility [Member]
Jun. 30, 2012
Revolving Credit Facility [Member]
Jun. 27, 2012
Revolving Credit Facility [Member]
Senior Notes       $ 11,727,000                            
Line of Credit Facility, Maximum Borrowing Capacity   3,851,000 2,677,000                             8,000,000
Loans Payable, Noncurrent     3,727,000                              
Debt Instrument, Basis Spread on Variable Rate                             3.25% 2.75%    
Line of Credit Facility, Interest Rate at Period End   3.25%                     3.75% 3.75%   3.25% 3.25%  
Debt Instrument, Periodic Payment 44,000                                  
Guarantor Obligations, Maximum Exposure, Undiscounted   1,000,000                                
Debt Instrument, Interest Rate, Stated Percentage         10.00%   6.00%   9.50% 4.00%                
Debt Instrument, Face Amount           1,714,000     4,500,000   686,000 27,000            
Convertible Notes Payable             5,350,000                      
Debt Instrument, Convertible, Conversion Price (in Dollars per share)             $ 0.65                      
Embedded Derivative, Fair Value of Embedded Derivative Liability             $ 988,000 $ 555,000