Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Data (unaudited) [Abstract]

Selected Quarterly Financial Information

The following tables contain selected quarterly financial information from 2018 and 2017 (in thousands, except per share amounts). The Company believes that this information reflects all normal recurring adjustments necessary for a fair statement of the information for the periods presented. The operating results for any quarter are not necessarily indicative of results for any future period.

	Three Months Ended
	March 31, 2018		June 30, 2018		September 30, 2018		December 31, 2018
Revenues	$	23,411	$	13,928	$	13,267	$	16,824
Manufacture and supply		5,636		4,973		5,592		4,787
Total costs and expenses		18,106		46,614		22,471		29,173
Net income (loss)		4,099		(36,493)		(15,038)		(13,944)
Basic and diluted net income (loss) per common share	$	0.27	$	(1.90)	$	(0.64)	$	(0.56)
	Three Months Ended
	March 31, 2017		June 30, 2017		September 30, 2017		December 31, 2017
Revenues	$	16,436	$	11,142	$	27,146	$	12,194
Manufacture and supply		4,184		5,141		4,880		5,615
Total costs and expenses		15,655		15,201		16,725		19,450
Net income (loss)		(1,457)		(5,897)		8,451		(10,040)