Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data

The following tables set forth our unaudited results of operations for each of the quarters in 2020 and 2019.

	Year 2020 Quarters Ended
(in thousands, except per share data)	March 31			June 30			September 30			December 31
Revenues, net	$	14,511		$	16,153		$	17,537		$	18,626
Gross profit		12,610			14,070			15,273			16,223
Gross margin		86.9	%		87.1	%		87.1	%		87.1	%
Income (loss) from operations		(3,265	)		(2,220	)		368			489
Net income (loss)		(3,580	)		(2,525	)		6,314			310
Basic net income (loss) per share	$	(0.19	)	$	(0.13	)	$	0.33		$	0.02
Diluted net income (loss) per share	$	(0.19	)	$	(0.13	)	$	0.32		$	0.02
Weighted average shares outstanding - basic		18,482			18,837			19,183			19,183
Weighted average shares outstanding - diluted		18,482			18,837			19,737			19,603

	Year 2019 Quarters Ended
(in thousands, except per share data)	March 31			June 30			September 30			December 31
Revenues, net	$	12,467		$	13,164		$	13,660		$	14,688
Gross profit		10,867			11,379			11,859			12,763
Gross margin		87.2	%		86.4	%		86.8	%		86.9	%
Loss from operations		(6,448	)		(4,287	)		(3,900	)		(2,569	)
Net loss		(6,726	)		(4,468	)		(4,144	)		(2,812	)
Basic and diluted net loss per share	$	(0.38	)	$	(0.25	)	$	(0.23	)	$	(0.15	)
Weighted average shares outstanding - basic		17,890			17,944			18,375			18,402