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
Jun. 30, 2019
Dec. 31, 2018
Accrued Liabilities and Other Liabilities [Abstract]    
Salaries, benefits and related expenses $ 1,865 $ 2,446
Device warranty 294 307
Clinical trials 307 227
Severance 46 270
Financing lease liability 36 35
Other 220 256
Total $ 2,768 $ 3,541