Stockholder's Equity (Tables)

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement, Noncash Expense [Abstract]

Schedule of share-based payment award, stock options, valuation assumptions

The weighted average assumptions utilized to determine the fair value of options granted during the nine months ended September 30, 2021 and 2020 are as follows:

	Nine Months Ended September 30,
	2021		2020
Risk-free interest rate	0.92	%	0.21	%
Expected volatility	44.98	%	44.03	%
Expected life (in years)	4.28		4.29
Dividend yield	0	%	0	%

Schedule of share-based compensation, employee stock purchase plan

The following table presents stock-based compensation expense, including under the ESPP, in the Company's consolidated statements of operations for the three and nine months ended September 30, 2021 and 2020:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Cost of product sales	$	78	$	41	$	194	$	115
Cost of service sales	3		—		8		—
Research and development	150		118		491		408
Sales, marketing and support	239		163		664		456
General and administrative	572		590		1,672		1,480
	$	1,042	$	912	$	3,029	$	2,459

Schedule of accumulated other comprehensive income (loss)

The balances for the three months ended September 30, 2021 and 2020 are as follows:

	Foreign Currency Translation		Total Accumulated Other Comprehensive Loss
Balance, June 30, 2021	$	(2,968)	$	(2,968)
Other comprehensive loss	(370)		(370)
Net other comprehensive loss	(370)		(370)
Balance, September 30, 2021	$	(3,338)	$	(3,338)

	Foreign Currency Translation		Unrealized Loss on Available for Sale Marketable Securities		Total Accumulated Other Comprehensive Loss
Balance, June 30, 2020	$	(5,377)	$	—	$	(5,377)
Other comprehensive income (loss)	1,103		(1)		1,102
Net other comprehensive income (loss)	1,103		(1)		1,102
Balance, September 30, 2020	$	(4,274)	$	(1)	$	(4,275)

The balances for the nine months ended September 30, 2021 and 2020 are as follows:

	Foreign Currency Translation		Total Accumulated Other Comprehensive Loss
Balance, December 31, 2020	$	(3,232)	$	(3,232)
Other comprehensive loss	(106)		(106)
Net other comprehensive loss	(106)		(106)
Balance, September 30, 2021	$	(3,338)	$	(3,338)

	Foreign Currency Translation		Unrealized Loss on Available for Sale Marketable Securities		Total Accumulated Other Comprehensive Loss
Balance, December 31, 2019	$	(2,767)	$	—	$	(2,767)
Other comprehensive loss	(1,507)		(1)		(1,508)
Net other comprehensive loss	(1,507)		(1)		(1,508)
Balance, September 30, 2020	$	(4,274)	$	(1)	$	(4,275)