Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Consolidated Statements of Operations
Revenues	$ 60,645	$ 41,468	$ 154,973	$ 125,495
Cost of sales	36,967	32,512	100,329	95,511
Gross profit	23,678	8,956	54,644	29,984
Operating expenses:
Selling, general and administrative	6,072	6,162	19,586	20,184
Amortization	698	715	2,095	2,147
Total operating expenses	6,770	6,877	21,681	22,331
Operating income	16,908	2,079	32,963	7,653
Other (expense) income:
Net interest expense	(2,843)	(2,966)	(8,532)	(9,412)
Other income	2,475	1,000	2,470	1,011
Total other (expense)	(368)	(1,966)	(6,062)	(8,401)
Income (loss) before income taxes	16,540	113	26,901	(748)
Income tax expense (benefit)	670	74	830	(288)
Net income (loss)	$ 15,870	$ 39	$ 26,071	$ (460)
Net income (loss) per common share - Basic	$ 0.36	$ 0.00	$ 0.60	$ (0.01)
Net income (loss) per common share - Diluted	$ 0.34	$ 0.00	$ 0.56	$ (0.01)
Weighted average number of shares outstanding - Basic	43,870,825	42,656,510	43,576,211	42,637,945
Weighted average number of shares outstanding - Diluted	46,964,522	43,680,265	46,412,691	42,637,945