CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Cash Flows From Operating Activities          
Net Loss $ (31,747) $ (5,726) $ (30,679) $ (24,663) $ (22,439)
Adjustments to reconcile net loss to net cash used in operating activities          
Depreciation & amortization 1,422 1,317 5,320 4,997 3,956
Amortization of intangibles 157 268 1,069 1,046 1,053
Unrealized loss on derivatives 11,042 0 (71,041) 0 0
Gain on extinguishment of debt, net     (7,117) 0 0
Stock-based compensation 12,490 502 54,417 1,730 1,747
Write-off of other intangible assets     3,009 0 0
Amortization of deferred debt charges 0 167 493 657 242
Loss (gain) on asset dispositions     24 458 (4)
Reverse recapitalization costs allocated to warrants and earnouts     1,604 0 0
Changes in operating assets and liabilities, net of reverse recapitalization          
Accounts receivable 841 (785) (4,846) 283 (239)
Other current assets 575 (222) (2,902) 343 (283)
Other assets 344 (19) 16 149 71
Accounts payable 2,503 (482) (856) 2,179 953
Other current liabilities 1,764 2,646 1,111 2,066 (1,401)
Other liabilities (1,126) (1,451) (1,248) 1,554 0
Deferred revenue 804 1,370 12,735 2,547 26
Net Cash Used In Operating Activities (931) (2,415) (38,891) (6,654) (16,318)
Cash Flows From Investing Activities          
Capital expenditures (1,264) (848) (5,163) (2,874) (6,356)
Net Cash Used In Investing Activities (1,264) (848) (5,163) (2,874) (6,356)
Cash Flows From Financing Activities          
Proceeds from reverse recapitalization, net     557,574 0 0
Payments to legacy investors (767) 0 (336,079) 0 0
Payments of reverse recapitalization costs 0 (444) (21,638) 0 0
Proceeds from loan and security agreement     11,000 4,000 35,000
Proceeds from promissory note     0 8,293 0
Repayment of loan and security agreement     (50,000) 0 0
Repayment of revolving debt facility     0 0 (10,000)
Payments of debt issuance costs     0 0 (613)
Payment of debt extinguishment costs     (1,607) 0 0
Other (49) 0      
Net Cash Used In Financing Activities (816) (444) 159,250 12,293 24,387
Effect of Exchange Rate Change on Cash, Cash Equivalents, and Restricted cash (5) 7 1 21 28
Net increase/(decrease) in Cash, Cash Equivalents, and Restricted cash (3,016) (3,700) 115,197 2,786 1,741
Cash, Cash equivalents, and Restricted Cash, Beginning of Year 145,879 30,682 30,682 27,896 26,155
Cash, Cash Equivalents, and Restricted Cash, End of Period 142,863 26,982 145,879 30,682 27,896
Supplemental Cash Flow Information          
Purchase of fixed assets included in accounts payable 88 122 44 28 39
Cash paid for interest     4,069 4,148 1,442
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]          
Stock-based compensation included in capitalized internal use software     54,960 1,730 1,747
Software developed or obtained for internal use          
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]          
Stock-based compensation included in capitalized internal use software $ 606 $ 0 $ 543 $ 0 $ 0