Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities (Details 1)

v3.8.0.1
Accrued Liabilities (Details 1)
$ in Thousands
3 Months Ended
Mar. 31, 2018
USD ($)
Accrued Liabilities [Line Items]  
Beginning Balance $ 353
Additions for estimated future expense 82
Incurred costs (31)
Closing Balance 404
Maintenance [Member]  
Accrued Liabilities [Line Items]  
Beginning Balance 121
Additions for estimated future expense 0
Incurred costs 0
Closing Balance 121
Warranty [Member]  
Accrued Liabilities [Line Items]  
Beginning Balance 232
Additions for estimated future expense 82
Incurred costs (31)
Closing Balance $ 283