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Subsequent Events (Narrative) (Details) - USD ($)
$ in Millions
May 05, 2022
May 05, 2021
Mar. 31, 2022
2022 Share Repurchase Program [Member]      
Subsequent Event [Line Items]      
Authorized Amount of repurchase of outstanding shares of common stock under share repurchase program $ 4.0    
Stock Repurchase Program, Period in Force 3 years    
C3bank [Member]      
Subsequent Event [Line Items]      
Line of credit   $ 10.0 $ 1.4
Debt instrument, Maturity date   May 07, 2023  
C3bank [Member] | Maximum [Member]      
Subsequent Event [Line Items]      
Interest rate per annum   4.95%