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Inventories | 9 Months Ended
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Sep. 30, 2021
Inventory Disclosure [Abstract] |
Inventories | Inventories Inventories are as follows (in thousands):
| September 30, 2021 |  | December 31, 2020
Raw materials | $ | 6,025 |  |  | $ | 7,190 |
Finished goods | 13,451 |  |  | 15,705 |
Inventories | 19,476 |  |  | 22,895 |
Less reserve for excess and obsolete inventory | (10,658) |  |  | (11,058) |
Inventories, net | $ | 8,818 |  |  | $ | 11,837 |
The provision recorded in the three and nine months ended September 30, 2021 were $0.1 million for the CT segment and nil for the DA segment and $0.5 million for the CT segment and $0.2 million of the DA segment, respectively. The provision recorded in the three and nine months ended September 30, 2020 were $5.9 million for the CT segment and $3.9 million for the DA segment and $2.0 million for the CT segment and $3.9 million for the DA segment, respectively. The decrease in excess and obsolescence during the nine months ended September 30, 2020 is attributable to the Company’s sales of excess and obsolescence inventory.

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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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