Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details)

v3.7.0.1
Subsequent Events (Details) - USD ($)
Aug. 30, 2017
Aug. 28, 2017
May 25, 2017
Feb. 24, 2017
Dec. 01, 2016
Oct. 07, 2016
May 27, 2016
Feb. 29, 2016
Nov. 25, 2015
Oct. 05, 2015
Subsequent Event [Line Items]                    
Dividends paid (usd per share)     $ 0.08 $ 0.08 $ 0.07 $ 0.07 $ 0.07 $ 0.07 $ 0.05 $ 0.05
Subsequent Event                    
Subsequent Event [Line Items]                    
Dividend declared (usd per share) $ 0.08                  
Goldline, LLC | Subsequent Event                    
Subsequent Event [Line Items]                    
Purchase price   $ 10,000,000                
Liabilities incurred for the acquisition   7,500,000                
Escrow deposit   $ 1,500,000                
Escrow, percentage of total (in percentage)   50.00%                
Goldline, LLC | Loans Payable [Member] | Subsequent Event                    
Subsequent Event [Line Items]                    
Stated interest rate (in percentage)   8.50%                
Debt instrument, additional interest, percentage of total principal (in percentage)   3.00%                
Debt instrument, additional interest, percentage of cumulative three year EBITDA (in percentage)   10.00%                
Debt instrument, additional interest, percentage of cumulative three year EBITDA, amount   $ 10,000,000                
Debt instrument, term (years)   3 years