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Goodwill and Intangible Assets, Amortization Expense (Details) - USD ($)
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Amortization expense for acquired intangible assets [Abstract]      
Amortization expense $ 1,548,000 $ 1,571,000 $ 1,770,000
Estimated future amortization expense for intangible assets subject to amortization [Abstract]      
2023 1,520,000    
2024 1,133,000    
2025 514,000    
2026 369,000    
2027 263,000    
Total $ 3,799,000