Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Restricted Cash [Abstract]
Restricted cash	$ 0	$ 960
Software Development Costs [Abstract]
Software development costs useful life		3 years
Development Expenditures [Abstract]
Development Expenditures	1,300	$ 1,600
Capitalized software development costs	432	177
Impairment of long-lived assets [Abstract]
Intangible asset impairment loss		200
Goodwill, Impaired [Abstract]
Goodwill impairment loss	$ 0	0
Accrued Warranty [Abstract]
Term of warranty - Min	1 year
Term of Warranty - max	5 years
Product Warranty [Roll Forward]
Beginning balance	$ 1,953	1,478
Current year provision	(107)	707
Current year claims	(215)	(245)
Currency adjustment	(10)	13
Ending balance	1,621	1,953
Numerator: [Abstract]
Net (loss) income attributed to common stockholders	$ (354)	$ 6,557
Denominator: [Abstract]
Weighted-average shares outstanding for basic earnings per share (in shares)	19,704,999	19,259,966
Effect of dilutive securities [Abstract]
Stock options and restricted stock units (in shares)	0	345,461
Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share (in shares)	19,704,999	19,605,427
Shares related to dilutive securities excluded because inclusion would be anti-dilutive (in shares)	217,152	374,833
Cumulative Effect of New Accounting Principle [Abstract]
Cumulative effect of adopting ASC 606	$ 655	$ 0
Accounting Standards Update 2014-09 [Member]
Cumulative Effect of New Accounting Principle [Abstract]
Cumulative effect of adopting ASC 606	$ 700
Equipment, Software and Leasehold Improvements, net [Member] \| Maximum [Member]
Equipment, Software and Leasehold Improvements [Abstract]
Estimated useful life		10 years
Equipment, Software and Leasehold Improvements, net [Member] \| Minimum [Member]
Equipment, Software and Leasehold Improvements [Abstract]
Estimated useful life		3 years

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