Loans Held for Investment (“HFI”) and Loans Held for Sale (“HFS”) (Loan Aging Analysis) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Recorded Investment, Current	$ 67,000	$ 67,000
Loans Receivable, Unpaid Principal Balance, Current	67,000	67,000
Loans Receivable, Net	67,299	67,299
Loans Receivable, Net, Unpaid Principal Balance	68,050	68,050
90 days or greater
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Recorded Investment, Past Due	299	299
Loans Receivable, Unpaid Principal Balance, Past Due	$ 1,050	$ 1,050