Fair Value Measurements (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets:
Total	$ 50,000	$ 50,000
Liabilities:
Total	2,000	17,000
Liabilities classified	2,000	17,000	$ 33,000
Fair Value Transfers Between Level Hierarchies	0	0
Restricted cash [Member]
Assets:
Total	50,000	50,000
Warrant liability
Liabilities:
Total	2,000	17,000
Level 1 [Member]
Assets:
Total	50,000	50,000
Level 1 [Member] | Restricted cash [Member]
Assets:
Total	50,000	50,000
Level 3 [Member]
Liabilities:
Total	2,000	17,000
Level 3 [Member] | Warrant liability
Liabilities:
Total	$ 2,000	$ 17,000