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Significant Transactions - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended |
--- | --- | --- | --- | ---
Mar. 10, 2021 | Mar. 02, 2021 | Apr. 03, 2021 | Jan. 02, 2021
Business Acquisition [Line Items] |  |  |  |
Common stock, shares issued |  |  | 15,522,809 | 13,899,683
Common stock, par value |  |  | $ 0.01 | $ 0.01
Proceeds from issuance of common stock, net of issuance costs |  |  | $ 9,878 |
Topcon [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Common stock, shares issued |  | 1,618,122 |  |
Common stock, par value |  | $ 6.18 |  |
Proceeds from issuance of common stock, net of issuance costs |  | $ 19,500 |  |
TMLS |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Acqusition of a business and the purchase price | $ 5,300 |  |  |

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