Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies (Details 1)

v3.22.1
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