Selected Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

The results of operations for any quarter are not necessarily indicative of the results to be expected for any future period (in thousands of dollars, except for share and per share data):


Quarter Ended	March 31		June 30		September 30		December 31
2020:
Total revenues	$	63,535	$	50,878	$	71,944	$	78,809
Gross profit	47,472		35,394		53,712		58,311
Net loss	(9,065)		(20,437)		(4,677)		(9,651)
Net loss per common share, basic and diluted	$	(0.34)	$	(0.75)	$	(0.17)	$	(0.33)
2019:
Total revenues	$	48,334	$	52,441	$	54,673	$	59,104
Gross profit	36,561		39,429		40,888		45,189
Net loss	(8,250)		(10,725)		(18,293)		(17,300)
Net loss per common share, basic and diluted	$	(0.34)	$	(0.43)	$	(0.72)	$	(0.65)

Schedule Revisions Impacts On Quarterly Financial Data

The impact of the revision on the unaudited quarterly financial data is as follows:


Quarter Ended	June 30, 2019
	As Reported		Adjustment		As Revised
Total revenues	$	53,331	$	(890)	$	52,441
Gross profit	40,506		(1,077)		39,429
Net loss	(11,467)		742		(10,725)
Net loss per common share, basic and diluted	$	(0.46)	$	0.03	$	(0.43)

Quarter Ended	March 31, 2019
	As Reported		Adjustment		As Revised
Total revenues	$	47,214	$	1,120	$	48,334
Gross profit	35,484		1,077		36,561
Net loss	(8,019)		(231)		(8,250)
Net loss per common share, basic and diluted	$	(0.33)	$	(0.01)	$	(0.34)