Carrying Amounts and Fair Value of Financial Instruments (Narrative) (Details)	3 Months Ended
	Mar. 31, 2019 USD ($) investment	Dec. 31, 2018 USD ($)
Fair Value Disclosures [Abstract]
Number of equity investments | investment	1
Investor funding period	30 days
Review period to request a new third party appraisal	24 months
Impaired financing receivable, recorded investment	$ 5,497,920	$ 9,364,125
Fair value disclosure, off-balance sheet risks, amount, liability	$ 93,100,000