Net Income (Loss) per Common Share (Tables)

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Summary of Calculations for Basic and Diluted Net Income (Loss) Per Common Share

The calculations for basic and diluted net income (loss) per common share are as follows:

	Year Ended December 31,
	2023			2022			2021
Basic net income (loss) per common share:
Numerator:
Net income (loss)	$	(5,489	)	$	(392	)	$	1,620
Less: accretion of Series B convertible preferred stock dividends		(1,266	)		(1,206	)		(1,148	)
Net income (loss) available to common stockholders	$	(6,755	)	$	(1,598	)	$	472
Denominator:
Weighted average common shares outstanding - basic		23,068			22,659			21,340
Net income (loss) per common share - basic	$	(0.29	)	$	(0.07	)	$	0.02
Diluted net income (loss) per common share:
Numerator:
Net income (loss) available to common stockholders	$	(6,755	)	$	(1,598	)	$	472
Plus: accretion of Series B convertible preferred stock dividends, if dilutive		—			—			—
Net income (loss) available to common stockholders	$	(6,755	)	$	(1,598	)	$	472
Denominator:
Weighted average common shares outstanding - basic		23,068			22,659			21,340
Dilutive securities:
Stock options, RSUs, and warrants		—			—			927
Weighted average common shares outstanding - diluted		23,068			22,659			22,267
Net income (loss) per common share - diluted	$	(0.29	)	$	(0.07	)	$	0.02

Common Stock Equivalents Excluded From Diluted Net Income (Loss) Per Share

The following common stock equivalents have been excluded from diluted net income (loss) per share for the fiscal years presented below because their inclusion would have been anti-dilutive (in thousands):

	December 31,
	2023		2022		2021
Shares of common stock subject to outstanding RSUs		730		819		—
Shares of common stock subject to outstanding PSUs		—		40		175
Shares of common stock subject to outstanding stock options		495		506		—
Shares of common stock subject to outstanding warrants		—		275		—
Shares of common stock issuable upon conversion of Series B    convertible preferred stock		6,647		6,331		6,029
Total		7,872		7,971		6,204