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Note 5 - Intangible Assets, net (Details)
12 Months Ended
Apr. 24, 2013
USD ($)
Aug. 31, 2011
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Note 5 - Intangible Assets, net (Details) [Line Items]        
Amortization of Intangible Assets     $ 406,704 $ 1,484,015
Customer Relationships [Member]        
Note 5 - Intangible Assets, net (Details) [Line Items]        
Finite-Lived Intangible Assets, Gross     6,150,559 6,150,559
Customer Relationships [Member] | Diamond Bar [Member]        
Note 5 - Intangible Assets, net (Details) [Line Items]        
Finite-Lived Intangible Assets, Gross   $ 50,000    
Finite-Lived Intangible Assets, Amortization Method   straight-line method    
Customer Relationships [Member] | Bright Swallow International Group Limited [Member]        
Note 5 - Intangible Assets, net (Details) [Line Items]        
Finite-Lived Intangible Assets, Amortization Method straight-line method      
Finite-Lived Intangible Asset, Useful Life 15 years      
Finite-lived Intangible Assets, Fair Value Disclosure $ 6,100,559      
Trademarks [Member]        
Note 5 - Intangible Assets, net (Details) [Line Items]        
Finite-Lived Intangible Assets, Gross     $ 200,000 $ 200,000
Trademarks [Member] | Diamond Bar [Member]        
Note 5 - Intangible Assets, net (Details) [Line Items]        
Number of trademarks acquired   2    
Payments to Acquire Intangible Assets   $ 200,000    
Finite-Lived Intangible Assets, Amortization Method   straight-line method    
Finite-Lived Intangible Asset, Useful Life   5 years    
Computer Software, Intangible Asset [Member]        
Note 5 - Intangible Assets, net (Details) [Line Items]        
Finite-Lived Intangible Asset, Useful Life     10 years 1 year
Finite-Lived Intangible Assets, Period Increase (Decrease)     $ 1,200,000  
Use Rights [Member]        
Note 5 - Intangible Assets, net (Details) [Line Items]        
Finite-Lived Intangible Assets, Amortization Method     straight-line method