Organization and Business Background (Details Textual)
 1 Months Ended
Nov. 14, 2015
CNY (¥)
Nov. 14, 2015
USD ($)
Dec. 01, 2011
USD ($)
$ / shares
shares
Sep. 25, 2013
USD ($)
Mar. 16, 2012
$ / shares
shares
Nov. 30, 2011
USD ($)
$ / shares
shares
Dec. 31, 2017
USD ($)
$ / shares
shares
Dec. 31, 2016
$ / shares
shares
Apr. 30, 2011
shares
Sep. 13, 2010
shares
Aug. 06, 2010
$ / shares
shares
Organization And Business Background [Line Items]                      
Common stock, par or stated value per share (in dollars per share) | $ / shares             $ 0.001 $ 0.001      
Common stock, shares issued             12,938,128 12,938,128      
Hong Kong subsidiary [Member]                      
Organization And Business Background [Line Items]                      
Business Combination, Consideration Transferred ¥ 1,250,000,000 $ 195,312,500                  
Repurchase Program 2013 [Member]                      
Organization And Business Background [Line Items]                      
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $             $ 1,431,918        
Merger Agreement [Member]                      
Organization And Business Background [Line Items]                      
Common Stock Shares Receivable Pursuant To Merger                     16,948,053
Common stock, par or stated value per share (in dollars per share) | $ / shares                     $ 0.001
Amended and Restated Merger Agreement [Member]                      
Organization And Business Background [Line Items]                      
Total Number Of Common Stock Shares Received Pursuant To Merger                   16,778,571  
Common Stock Shares Received On Closing Of Merger                   7,054,583  
Remaining Common Stock Issued                   9,723,988  
Remaining Common Stock Issued Year One                   2,944,767  
Remaining Common Stock Issued Year Two                   3,389,610  
Remaining Common Stock Issued Year Three                   3,389,611  
Common stock, shares issued                 7,486,845    
Conversion of Stock, Shares Converted           2,615,732          
Average Conversion Of Stock Shares Converted Price Per Share | $ / shares           $ 10.30          
Share repurchases (in shares)     1,570,000                
Share redeemed and cancelled | $     $ 11,800,000                
Stock Repurchase Price Per Share | $ / shares     $ 7.5                
Amended and Restated Merger Agreement [Member] | Repurchase Program 2011 [Member]                      
Organization And Business Background [Line Items]                      
Share redeemed and cancelled | $           $ 5,000,000          
Amended and Restated Merger Agreement [Member] | Repurchase Program 2013 [Member]                      
Organization And Business Background [Line Items]                      
Share redeemed and cancelled | $       $ 5,000,000              
Escrow Agreement [Member]                      
Organization And Business Background [Line Items]                      
Share redeemed and cancelled (in shares)         806,293            
Stock Repurchased and Retired Period Price Per Shares | $ / shares         $ 0.01