Fair Value of Financial Instruments (Assets and Liabilities Measured at Fair Value) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment	$ 0	$ 0
Loans held for sale	0	0
Total assets	0	0
Fixed-rate debt	0	0
Total fixed-rate debt	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment	0	0
Total assets	0	0
Fixed-rate debt	0	0
Total fixed-rate debt	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment	979,780	545,740
Loans held for sale	394	763
Total assets	980,174	546,503
Fixed-rate debt	275,200	190,411
Total fixed-rate debt	275,200	190,411
Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment	890,283	499,431
Loans held for sale	373	706
Total assets	890,656	500,137
Fixed-rate debt	280,886	194,624
Total fixed-rate debt	280,886	194,624
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment	979,780	545,740
Loans held for sale	394	763
Total assets	980,174	546,503
Fixed-rate debt	275,200	190,411
Total fixed-rate debt	$ 275,200	$ 190,411