Loans Receivable - Schedule of Loans Receivable Internal Ratings (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Percentage of Loan Portfolio	100.00%
Loans receivable, net	$ 86,139	$ 62,998
Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, net	86,139
Watch List Loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, net	0
Workout Loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, net	$ 0
Real Estate Secured
Financing Receivable, Recorded Investment [Line Items]
Percentage of Loan Portfolio	76.00%
Loans receivable, net	$ 65,635	42,037
Real Estate Secured | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, net	65,635
Real Estate Secured | Watch List Loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, net	0
Real Estate Secured | Workout Loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, net	$ 0
Other Secured
Financing Receivable, Recorded Investment [Line Items]
Percentage of Loan Portfolio	24.00%
Loans receivable, net	$ 20,504	$ 20,961
Other Secured | Performing Loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, net	20,504
Other Secured | Watch List Loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, net	0
Other Secured | Workout Loans
Financing Receivable, Recorded Investment [Line Items]
Loans receivable, net	$ 0