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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Income Taxes (FY) (Details) - USD ($)
3 Months Ended 5 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2020
Dec. 31, 2021
Income Taxes [Abstract]      
Unrecognized tax benefits $ 0 $ 0 $ 0
Accrued interest and penalties 0 0 0
Tax provision $ 0 $ 0 $ 0