Annual report pursuant to Section 13 and 15(d)

Cost Method Investment (Details)

v3.21.2
Cost Method Investment (Details)
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
Oct. 17, 2012
USD ($)
Oct. 17, 2012
CNY (¥)
Cost Method Investment [Line Items]        
Cost method investment | $ $ 3,218,440 $ 3,010,235    
Pingtan Fishing [Member]        
Cost Method Investment [Line Items]        
Cost method investment     $ 3,000,000.0 ¥ 21,000,000
Number of shares held as investment (in Shares) | shares 113,250      
Cost method investment, ownership percentage 4.80%