Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.8.0.1
Summary of Significant Accounting Policies (Details Textual)
12 Months Ended
May 03, 2012
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2017
CNY (¥)
shares
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2016
CNY (¥)
shares
Dec. 31, 2015
USD ($)
shares
Dec. 31, 2015
CNY (¥)
shares
Dec. 31, 2017
CNY (¥)
Dec. 31, 2016
CNY (¥)
Feb. 15, 2015
USD ($)
Feb. 15, 2015
CNY (¥)
Dec. 31, 2014
USD ($)
Summary of Significant Accounting Policies (Textual)                        
Cash balances   $ 2,005,540   $ 820,396   $ 11,448,684           $ 12,752,272
Restricted cash   $ 1,821,187   2,911,922                
Credit period   180 days 180 days                  
Allowance for doubtful accounts   $ 67,379   252,558                
Advances to suppliers     3,969,351                
Interest costs capitalized   $ 203,609   1,039,092   0            
Effective income tax rate on estimated profit 25.00% 25.00% 25.00%                  
Cumulative undistributed earnings   $ 207,500,000   179,300,000                
Shipping and handling costs   269,702   223,495   369,912            
Employee benefit costs   431,255   287,962   903,594            
Advertising expenses   74,332   42,208   89,204            
Cumulative translation adjustment and effect of exchange rate   (1,101,059)   (468,406)   148,733            
Foreign currency exchange rates   1.00   1.00       ¥ 6.5342 ¥ 6.9370      
Average translation rates   $ 1.00 ¥ 6.7518 $ 1.00 ¥ 6.6423 $ 1.00 ¥ 6.2175          
Warrants to purchase common stock | shares   8,966,667 8,966,667 8,966,667 8,966,667 8,966,667 8,966,667          
Entitlement of net profit loss towards fishing vessels by entity, percentage   100.00% 100.00%                  
Reserve for inventories                    
China Agriculture Industry Development Fund Co Ltd. [Member]                        
Summary of Significant Accounting Policies (Textual)                        
Percentage of equity interest   8.00%           8.00%   8.00% 8.00%  
Agriculture investment                   $ 65,000,000 ¥ 400,000,000  
PRC [Member]                        
Summary of Significant Accounting Policies (Textual)                        
Cash balances   $ 1,995,465   683,307                
HONG KONG [Member]                        
Summary of Significant Accounting Policies (Textual)                        
Cash balances   $ 10,075   $ 137,089