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Inventory | 9 Months Ended
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Sep. 30, 2021
Inventory Disclosure [Abstract] |
Inventory | Inventory Our inventory, net of allowance for obsolescence of $37,000 at September 30, 2021 and $221,000 at December 31, 2020, consisted of the following amounts:
| September 30, 2021 |  | December 31, 2020
| (in thousands)
Raw materials - current | $ | 20,381 |  |  | $ | 18,026 |
Work-in-process | 1,011 |  |  | 1,900 |
Inventory - current | 21,392 |  |  | 19,926 |
Raw materials - long term (net of allowances of $37 and $221, respectively) | 1,250 |  |  | 1,065 |
Inventory - total | $ | 22,642 |  |  | $ | 20,991 |
Our long-term inventory consists of raw materials that remain viable but that the Company does not expect to sell or use within the year. Inventory Allowance We routinely review our inventory allowance balance to account for slow moving or obsolete inventory costs that may not be recoverable in the future. A summary of our inventory allowance is as follows:
| September 30, 2021 |  | December 31, 2020
| (in thousands)
Beginning balance | $ | (221) |  |  | $ | (24) |
Accruals | — |  |  | (251) |
Write-offs | 184 |  |  | 54 |
Ending balance | $ | (37) |  |  | $ | (221) |

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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