Stock-Based Awards (Details Narrative) - USD ($)
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|
12 Months Ended |
|
Feb. 11, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Sep. 13, 2021 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
|
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| Number of restricted stock units |
|
$ (54,000)
|
$ (27,000)
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|
| Restricted Stock Units (RSUs) [Member] |
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|
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
|
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| Noncash stock-based compensation expense |
|
$ 100,000
|
$ 100,000
|
|
| Two Thousand Twenty One Equity Incentive Plan [Member] |
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|
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
|
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| Number of shares to be issued |
|
|
|
15,000,000
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| Number of shares to be issued, granted |
|
16,382,385
|
|
|
| Two Thousand Twenty One Equity Incentive Plan [Member] | Subsequent Event [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
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| Number of restricted stock units |
$ 694,424
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|
|
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| 2012 Equity Incentive Plan [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
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| Weighted average fair value of stock option awards granted |
|
$ 1.62
|
$ 0.43
|
|
| 2012 Equity Incentive Plan [Member] | Employees [Member] |
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|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
|
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| Employee withholding taxes in exchange vesting restricted stock units |
|
$ 54,000
|
$ 27,000
|
|
| Employee withholding taxes in exchange vesting restricted stock units, shares |
|
21,000
|
26,000
|
|
| 2012 Equity Incentive Plan [Member] | Subsequent Event [Member] |
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|
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
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| Weighted average fair value of stock option awards granted |
$ 1.50
|
|
|
|
| 2012 Plan [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Options outstanding,weighted-average remaining contractual term |
|
7 years 3 months 18 days
|
|
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| Options exercisable,weighted-average remaining contractual term |
|
5 years 3 months 18 days
|
|
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| Options outstanding,intrinsic value |
|
$ 9,600,000
|
|
|
| Options exercisable,intrinsic value |
|
$ 5,200,000
|
|
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| Asterias 2013 Equity Incentive Plan [Member] |
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|
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
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| Options outstanding,weighted-average remaining contractual term |
|
3 months 18 days
|
|
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| Options outstanding,intrinsic value |
|
$ 212,000
|
|
|
| Options exercisable,intrinsic value |
|
212,000
|
|
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| Lineage's 2002 Plan and 2012 Equity Incentive Plan [Member] |
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|
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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|
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| Unrecognized compensation costs related to unvested stock options |
|
$ 8,500,000
|
|
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| Expected recognized expense over weighted average period |
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2 years 6 months
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