Stock Incentive Plans - Inducement plan (Details) - shares	Sep. 30, 2023	Jun. 02, 2023	Feb. 01, 2023	Jan. 31, 2023	Jan. 30, 2023	Feb. 17, 2022
2022 Inducement Stock Incentive Plan
Stock Incentive Plans
Number of shares authorized				700,000	300,000	300,000
Number of grants issued	538,100
2015 Amended and Restated Stock Incentive Plan
Stock Incentive Plans
Number of shares issued			855,000
Number of additional shares authorized		4,300,000
Number of stock options remain outstanding	755,000