Stock Based Compensation - Narrative (Details) - USD ($)			3 Months Ended			9 Months Ended		12 Months Ended
	May 28, 2023	Apr. 18, 2023	Sep. 30, 2023	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Apr. 17, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted (in shares)						0	0
Vested stock options expired (in shares)						6,668		501
Forfeited (in shares)							10,000	10,000
Options, intrinsic value, vested			$ 0	$ 0		$ 0	$ 0
Stock option compensation expense, forfeiture					$ 84,000
Unrecognized stock-based compensation expense for stock options			92,000			92,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option compensation expense			31,000	31,000		$ 93,000	30,000
Stock option compensation expense, gross							114,000
Stock option compensation expense, forfeiture							84,000
Cost not yet recognized, period for recognition						9 months
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option compensation expense			$ 0	0		$ 0	0
Unvested restricted shares outstanding (in shares)			0			0
Unrecognized stock-based compensation expense for other than options			$ 0			$ 0
Restricted Stock | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested, restricted shares (in shares)	42
Vesting period	10 years
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option compensation expense			$ 0	0		$ 0	0
Unvested restricted shares outstanding (in shares)			0			0
Unrecognized stock-based compensation expense for other than options			$ 0			$ 0
RSUs | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested, restricted shares (in shares)	1,929
2019 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant (in shares)			3			3		177,567
Shares granted (in shares)		177,564
Stock option compensation expense			$ 31,000	31,000		$ 473,000	30,000
Share price (in dollars per share)									$ 2.14
2019 Equity Incentive Plan | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option compensation expense			31,000	31,000		93,000	30,000
2019 Equity Incentive Plan | RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option compensation expense		$ 380,000	$ 0	$ 0		$ 380,000	$ 0