XML 67 R51.htm IDEA: XBRL DOCUMENT v3.22.1
Paycheck Protection Program Promissory Note - Additional Information (Details) - USD ($)
1 Months Ended 12 Months Ended
May 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Gain on extinguishment of PPP promissory note (Note 9)   $ 2,023,000  
PPP Promissory Note [Member] | CARES Act [Member]      
Paycheck protection program, amount $ 2,000,000.0    
Interest rate 1.00%    
Payments due, beginning date Nov. 01, 2020    
Payments due, ending date 2022-05    
Gain on extinguishment of PPP promissory note (Note 9)   2,000,000.0  
Interest expense   $ 10,000 $ 13,000
Deferral period for all loans   10 months  
Debt instrument, description   payments would have been due beginning August 2021, and the principal amount, along with unpaid interest, would have been due in May 2022. The principal and interest could be forgiven if the proceeds are used for forgivable purposes as defined by the terms in the PPP Promissory Note.