Stockholders' Equity - Additional Information (Details) - USD ($)	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2021
Class Of Stock [Line Items]
Treasury Stock	534,520		534,520
Repurchase of common stock	0	33,926
Payment for repurchase of common stock	$ 0	$ 383,000
Series E Convertible Preferred Stock
Class Of Stock [Line Items]
Preferred stock, outstanding	47,840		47,840
Series B Convertible Preferred Stock
Class Of Stock [Line Items]
Preferred stock, outstanding	315,790		315,790