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Note 4 - Foreign Currency Translation
3 Months Ended
Mar. 31, 2019
Notes to Financial Statements  
Foreign Currency Disclosure [Text Block]
Note
4.
  Foreign Currency Translation
 
The functional currency of London is the British Pound. Assets and liabilities are translated into U.S. dollars at the exchange rates in effect at each balance sheet date, revenues and expenses are translated at average monthly exchange rates and resulting translation gains or losses are accumulated in other comprehensive income as a separate component of shareholders’ equity.