Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details)

v3.19.1
Subsequent Events (Details) - Line of Credit - USD ($)
May 22, 2019
May 23, 2017
Mar. 31, 2019
Subsequent Event [Line Items]      
Borrowing capacity   $ 5,000,000  
Western Alliance Bank      
Subsequent Event [Line Items]      
Borrowing capacity   $ 5,000,000 $ 5,000
Debt term   2 years  
Basis spread   1.25%  
Interest rate, floor   4.00%  
Interest rate at period end   5.25%  
Western Alliance Bank | Subsequent Event      
Subsequent Event [Line Items]      
Borrowing capacity $ 20,000,000    
Debt term 2 years    
Basis spread 0.50%    
Interest rate, floor 6.00%    
Interest rate at period end 5.50%    
Facilicy fee, percent of available credit limit 0.20%    
Unused line fee 0.10%