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Other Financial Information - Prepaid Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Other Financial Information [Abstract]
Diagnostic testing supplies	$ 1,736	$ 1,795
Prepaid product royalties	39	40
Prepaid maintenance and insurance contracts	2,210	2,072
Other prepaid expenses and other current assets	244	236
Prepaid expenses and other current assets	$ 4,229	$ 4,143

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