Significant Accounting Policies (Details 1) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Balance at beginning of period	$ 12,000,000	$ 22,000
Charges to costs and expenses	9,000	12,031,000
Recoveries and write-offs	(12,009,000)	(53,000)
Balance at end of period	$ 0	$ 12,000,000