Annual report pursuant to Section 13 and 15(d)

Letters of Credit (Details)

v3.22.0.1
Letters of Credit (Details) - Letter of Credit - USD ($)
Nov. 08, 2016
Feb. 01, 2022
Feb. 01, 2021
Feb. 03, 2020
Feb. 01, 2019
Dec. 31, 2017
Apr. 26, 2017
Line of Credit Facility [Line Items]              
Maximum borrowing capacity $ 300,000           $ 500,000
Automatic extension term 1 year            
Number of days prior to expiration date that written notice is required to terminate letter of credit 60 days            
Additional deposit required           $ 100,000  
Decrease to letter of credit per year     $ 100,000 $ 100,000 $ 100,000    
Forecast              
Line of Credit Facility [Line Items]              
Decrease to letter of credit per year   $ 100,000