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Note 6 - Commitments and Contingencies (Details Textual)
$ in Thousands
3 Months Ended
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Jun. 30, 2016
USD ($)
May 19, 2014
ft²
May 15, 2012
USD ($)
Jan. 05, 2012
ft²
Jan. 04, 2012
ft²
Manhattan Drug Company [Member]              
Area of Real Estate Property | ft²           76,161 74,898
Payments for Rent $ 533            
AgroLabs [Member]              
Area of Real Estate Property | ft²       2,700      
Payments for Rent 27            
Vitamin Realty LLC [Member]              
Operating Leases, Rent Expense 197 $ 184          
Accrued Rent 1,000   $ 1,100        
Stock Purchase Agreement [Member]              
Loss Contingency, Estimate of Possible Loss         $ 600    
Environmental Issues [Member]              
Loss Contingency, Estimate of Possible Loss         $ 300    
Operating Leases, Rent Expense $ 237 $ 225