Equity - Issue and Conversion (Details) - USD ($)	1 Months Ended	9 Months Ended
	Dec. 31, 2016	Sep. 30, 2022	Sep. 30, 2021	May 09, 2018
Proceeds from issuance of common stock, net of issuance costs		$ 1,050,000	$ 2,714,000
ATM Agreement
Proceeds from issuance of common stock, net of issuance costs			$ 1,800,000
Stock Issued During period Shares New Issues (in shares)			1,856,960
Aggregate value of securities allowed under agreement	$ 5,000,000.0
Sale price (in dollars per shares)			$ 0.97
Amortization of deferred cost			$ 57,000
Unamortized deferred cost		70,000
Aggregate securities allowed under agreement (in shares)	10,000,000
Commission rate (as a percent)	2.00%
Stock Issued During Period Value New Issues		2,200,000
LPC Program
Unamortized deferred cost		$ 353,000
Commitment purchase agreement
Aggregate value of securities allowed under agreement				$ 10,000,000.0