XML 70 R60.htm IDEA: XBRL DOCUMENT v3.22.1
Credit Arrangements, Bank Debt (Details) - Revolving Credit Facility [Member]
12 Months Ended
May 12, 2021
USD ($)
Dec. 31, 2021
USD ($)
Bank Debt [Abstract]    
Unsecured credit facility $ 10,000,000  
Maturity date   Apr. 12, 2024
Outstanding borrowings   $ 0
Minimum [Member]    
Bank Debt [Abstract]    
Indebtedness capital ratio 0.35  
LIBOR [Member]    
Bank Debt [Abstract]    
Basis spread on variable rate 2.00%  
Interest rate floor 1.00%