Annual report pursuant to Section 13 and 15(d)

Property, Plant and Equipment (Details)

v3.8.0.1
Property, Plant and Equipment (Details) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 165,202,680 $ 142,288,915
Less: accumulated depreciation (30,160,213) (20,092,321)
Property, Plant and Equipment, Net 135,042,467 122,196,594
Fishing vessels [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 164,748,753 122,989,702
Fishing vessels [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Useful life 10 years  
Fishing vessels [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Useful life 20 years  
Vehicles [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Useful life 5 years  
Property, Plant and Equipment, Gross 121,472
Office and other equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 453,927 423,001
Office and other equipment [Member] | Minimum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Useful life 3 years  
Office and other equipment [Member] | Maximum [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Useful life 5 years  
Construction-in-progress [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 18,754,740