Significant Accounting Policies Stock-based compensation (Details) - USD ($) $ in Thousands	12 Months Ended			178 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Oct. 01, 2026
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based Compensation	$ 1,600	$ 1,400	$ 1,100
Scenario, Forecast [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based Compensation				$ 17,500