Annual report pursuant to Section 13 and 15(d)

Equity - Series B Preferred Stock (Details)

v3.8.0.1
Equity - Series B Preferred Stock (Details) - Subsequent Event - Preferred Stock - USD ($)
2 Months Ended
Jan. 10, 2018
Feb. 20, 2018
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Maximum amount of securities allowed to be sold   6,500,000
Series B Preferred Stock    
Schedule of Trading Securities and Other Trading Assets [Line Items]    
Maximum amount of securities allowed to be sold 6,000,000  
Securities allowed for issuance $ 150,000,000 $ 162,500,000