Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities - Schedule of Accrued Liabilities (Details)

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Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Accrued Liabilities and Other Liabilities [Abstract]    
Salaries, benefits and related expenses $ 1,267 $ 1,194
Device warranty 153 188
Other 55 47
Total $ 1,475 $ 1,429