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Consolidated Balance Sheets (Parentheticals) - $ / shares
Dec. 31, 2020
Dec. 31, 2019
Common stock – Class A    
Common stock, par value (in Dollars per share) $ 0.021848 $ 0.021848
Common stock, shares authorized 4,736,111 4,736,111
Common stock, shares issued 2,210,683 836,933
Common stock, shares outstanding 2,210,683 836,933
Common stock – Class B    
Common stock, par value (in Dollars per share) $ 0.021848 $ 0.021848
Common stock, shares authorized 1,513,889 1,513,889
Common stock, shares issued 1,388,888 1,388,888
Common stock, shares outstanding 1,388,888 1,388,888