QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2021	Sep. 30, 2020
Continuing operations
Revenue	$ 39,564,667	$ 25,285,951	$ 25,605,412	$ 32,009,796	$ 44,516,008	$ 30,762,725	$ 18,072,400	$ 25,843,307	$ 122,465,826	$ 119,194,440
Operating Income (loss)	2,312,792	(502,253)	(1,950,390)	(752,771)	5,889,687	294,036	(2,275,040)	(239,030)	(892,622)	3,669,653
Net loss	1,743,148	9,313,240	(1,311,471)	(647,662)	4,219,697	(17,955)	(1,694,611)	(74,114)	9,097,255	2,433,017
Dividends on preferred stock	52,488	77,250	77,250	77,250	77,250	77,250	77,250	77,250	284,238	309,000
Net income (loss) available to common shareholders	$ 1,690,660	$ 9,235,990	$ (1,388,721)	$ (724,912)	$ 4,142,447	$ (95,205)	$ (1,771,861)	$ (151,364)	$ 8,813,017	$ 2,124,017
Weighted-basic shares outstanding (in shares)	13,621,406	13,621,406	13,624,406	13,621,406	13,621,406	13,627,293	13,783,546	13,911,610	13,621,406	13,804,835
Weighted-diluted shares outstanding (in shares)	16,791,641	17,089,722	13,624,406	13,621,406	17,054,739	13,627,293	13,783,546	13,911,610	16,988,424	17,238,168
Earnings (loss) per share available to common shareholders (in dollars per share)	$ 0.124	$ 0.678	$ (0.102)	$ (0.053)	$ 0.304	$ (0.007)	$ (0.129)	$ (0.011)	$ 0.647	$ 0.154
Earnings (loss) per share available to common shareholders-diluted	$ 0.101	$ 0.540	$ (0.102)	$ (0.053)	$ 0.243	$ (0.007)	$ (0.129)	$ (0.011)	$ 0.519	$ 0.123