Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Consolidated Statements of Operations
Revenues	$ 47,677	$ 56,011	$ 84,027	$ 90,675
Cost of sales	34,996	58,377	62,999	86,056
Gross profit (loss)	12,681	(2,366)	21,028	4,619
Operating expenses:
Selling, general and administrative	6,757	6,848	14,022	12,872
Amortization	716	753	1,432	1,474
Total operating expenses	7,473	7,601	15,454	14,346
Operating income (loss)	5,208	(9,967)	5,574	(9,727)
Other expense:
Net interest expense	(3,132)	(4,267)	(6,446)	(8,474)
Other income	8	508	11	508
Total other expense	(3,124)	(3,759)	(6,435)	(7,966)
Income (loss) before income taxes	2,084	(13,726)	(861)	(17,693)
Income tax (benefit) expense	(302)	71	(362)	143
Net income (loss)	$ 2,386	$ (13,797)	$ (499)	$ (17,836)
Net income (loss) per common share - Basic	$ 0.06	$ (0.32)	$ (0.01)	$ (0.42)
Net income (loss) per common share - Diluted	$ 0.06	$ (0.32)	$ (0.01)	$ (0.42)
Weighted average number of shares outstanding - Basic	42,628,560	42,604,189	42,628,560	42,603,315
Weighted average number of shares outstanding - Diluted	42,917,562	42,604,189	42,628,560	42,603,315