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Note 2 - Summary of Significant Accounting Policies (Details Textual)
3 Months Ended 12 Months Ended
Sep. 30, 2018
USD ($)
Jun. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Jun. 30, 2018
USD ($)
Allowance for Doubtful Accounts Receivable. Related Parties $ 0 $ 0   $ 0
Allowance for Doubtful Accounts Receivable, Ending Balance 0 51,747   51,747
Asset Impairment Charges, Total 0   $ 0  
Inventory Write-down 0   0  
Inventory Valuation Reserves, Ending Balance 0 $ 0   $ 0
Impairment of Intangible Assets, Finite-lived 0   0  
Goodwill, Impairment Loss 0   0  
Impairment of Long-Lived Assets Held-for-use 0   0  
Advertising Expense 900,000   800,000  
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax (11,583)   42,705  
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax 0   $ (44,097)  
Security Alarm Monitoring Customer Support Services [Member]        
Revenue from Contract with Customer, Including Assessed Tax $ 217,000      
Percentage of Total Revenue from Services Under Contract Recognized As Provided 20.00%      
Percentage of Consolidated Revenue from Services Under Contract, Recognized As Provided 3.00%      
Brigadier [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member]        
Concentration Risk, Percentage 59.00%   49.00%  
Brigadier [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member]        
Concentration Risk, Percentage 35.00% 40.00%    
Brigadier [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member] | Major Customer 1 [Member]        
Concentration Risk, Percentage 10.00%   20.00%  
Gourmet Foods [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Major Customer 1 [Member] | Grocery Industry [Member]        
Concentration Risk, Percentage 24.00%   22.00% 3.00%
Gourmet Foods [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Major Customer 1 [Member] | Gasoline Convenience Store Sector [Member]        
Concentration Risk, Percentage 41.00%   40.00%  
Gourmet Foods [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Major Customer 2 [Member] | Grocery Industry [Member]        
Concentration Risk, Percentage 13.00%   12.00%  
Gourmet Foods [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member] | Gasoline Convenience Store Sector [Member]        
Number of Major Customers 0   0  
Gourmet Foods [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member] | Independent Retailers Sector [Member]        
Number of Major Customers 0   0  
Gourmet Foods [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member] | Major Customer 1 [Member] | Grocery Industry [Member]        
Concentration Risk, Percentage 30.00%     33.00%
Gourmet Foods [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member] | Major Customer 2 [Member] | Grocery Industry [Member]        
Concentration Risk, Percentage 17.00% 16.00%    
The Original Sprout LLC [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member] | Major Customer 1 [Member]        
Concentration Risk, Percentage 23.00% 20.00%    
The Original Sprout LLC [Member] | Customer Concentration Risk [Member] | Accounts Receivable [Member] | Major Customer 2 [Member]        
Concentration Risk, Percentage 14.00% 10.00%   13.00%
The Original Sprout LLC [Member] | Customer Concentration Risk [Member] | Sales Revenue, Gross [Member] | Major Customer 1 [Member]        
Concentration Risk, Percentage 15.00%      
The Original Sprout LLC [Member] | Customer Concentration Risk [Member] | Sales Revenue, Gross [Member] | Major Customer 2 [Member]        
Concentration Risk, Percentage 11.00%