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Leases - Schedule of the Classification of Operating and Finance Lease Assets and Obligations in the Company's Consolidated Balance Sheets (Detail) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Operating leases:      
Right of use assets $ 1,579 $ 1,139 $ 1,415
Operating lease liabilities, current 295 235 195
Operating lease liabilities, noncurrent 1,354 985 1,219
Total operating lease liabilities 1,649 1,220 1,414
Finance leases:      
Right of use assets 94 102 145
Finance lease liabilities, current 33 32 30
Finance lease liabilities, noncurrent 74 82 115
Total finance lease liabilities $ 107 $ 114 $ 145