Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

v3.7.0.1
Stockholders' Equity (Details) - USD ($)
1 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 16, 2017
Apr. 10, 2017
Mar. 20, 2017
Jan. 10, 2017
Mar. 31, 2016
Mar. 02, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Preferred Stock, Shares Authorized 10,000,000             10,000,000   10,000,000
Preferred Stock, Par or Stated Value Per Share $ 0.001             $ 0.001   $ 0.001
Preferred Stock, Shares Issued 0             0   0
Preferred Stock, Shares Outstanding 0             0   0
Common Stock, Shares Authorized 500,000,000             500,000,000   500,000,000
Common Stock, Par or Stated Value Per Share $ 0.001             $ 0.001   $ 0.001
Common Stock, Shares, Outstanding 21,105,675             21,105,675   17,605,675
Common Stock, Dividends, Per Share, Declared   $ 0.20   $ 0.20            
Dividends Payable $ 3,700,936             $ 3,700,936   $ 3,604,037
Payments of Dividends, Total     $ 21,105,675   $ 3,604,037     7,207,521 $ 285,703  
Proceeds from Issuance of Common Stock               29,553,232 $ 0  
Revolving Credit Facility [Member]                    
Repayments of Lines of Credit           $ 25,000,000   25,000,000    
Long Tem Incentives Plan Units [Member]                    
Dividends Payable $ 96,405             $ 96,405    
Dividends Payable, Amount Per Share $ 0.20             $ 0.20    
Over-Allotment Option [Member]                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 525,000                  
Underwritten Public Offering [Member]                    
Stock Issued During Period, Shares, New Issues               3,500,000    
Stock Issued During Period, Value, New Issues               $ 31,500,000    
Shares Issued, Price Per Share $ 9.00             $ 9.00    
Proceeds from Issuance of Common Stock               $ 29,553,232    
ZH USA, LLC [Member]                    
Debt Conversion, Original Debt, Amount             $ 15,000,000      
Debt Conversion, Converted Instrument, Shares Issued             1,176,656