Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Changes in Estimated Product Warranty Liabilities

Changes in our estimated warranty reserve were as follows (in thousands):

	Year Ended December 31,
	2020		2019
Balance, beginning of period	$	1,476	$	898
Utilization of reserve		(700)		(973)
Warranty expense (benefit)		(7)		1,551
Balance, end of period	$	769	$	1,476

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

Volatility		47.71	%
Risk-free interest rate		2.98	%
Dividend rate		—
Expected life of options		9.76	years
Weighted average grant date fair value of options granted	$	38.64

Weighted Average Number of Shares Outstanding and Income Per Share

	For the Year Ended December 31,
	2020		2019		2018
Numerator for basic and diluted earnings per share:
Net income (loss)	$	(1,724)	$	882	$	29,205
Denominator:
Weighted average shares outstanding-basic		61,782		59,190		56,392
Dilutive effect of stock-based awards		—		828		1,530
Diluted weighted average shares outstanding		61,782		60,018		57,922
Anti-dilutive stock-based awards excluded		12,150		12,627		6,757
Net income (loss) per share:
Basic	$	(0.03)	$	0.01	$	0.52
Diluted	$	(0.03)	$	0.01	$	0.50