Fair Value of Financial Instruments - Recorded Amount of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Parenthetical) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale with value	$ 900	$ 1,000
Gain (loss) on derivative, net	(3,000)	(68)	$ 117
Equity Warrant Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) on derivative, net	(53)	(24)
Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value adjustment	$ 8	$ 1