Annual report pursuant to Section 13 and 15(d)

Borrowings - Prudential Note Payable (Details)

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Borrowings - Prudential Note Payable (Details) - Prudential Note Payable - USD ($)
12 Months Ended
Jun. 17, 2019
Dec. 31, 2019
Debt Instrument [Line Items]    
Debt instrument, face amount $ 17,130,000  
Term of debt 25 years  
Interest rate (as percent) 4.00%  
Other assets, funding held back   $ 498,000