Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 2,157,748	$ 4,353,026	$ 5,026,685	$ (5,822,037)
Other comprehensive income (loss):
Reclassification adjustment for net gain (loss) included in net income (loss)	0	0	0	12,617,794
Total other comprehensive income (loss)	0	0	0	12,617,794
Less: Dividends to preferred stockholders	(3,792)	(880,509)	(488,056)	(2,631,744)
Less: Deemed dividend on preferred stock related to redemption	0	0	(3,093,028)	0
Comprehensive income (loss) attributable to common stockholders	$ 2,153,956	$ 3,472,517	$ 1,445,601	$ 4,164,013