CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net revenues	$ 22,731,000	$ 41,775,000	$ 79,145,000	$ 78,731,000
Cost of services and products	18,147,000	22,192,000	45,050,000	49,236,000
Impairment of multi-client data library	0	0	1,167,000	0
Gross profit (loss)	4,584,000	19,583,000	32,928,000	29,495,000
Operating expenses:
Research, development and engineering	3,036,000	5,186,000	7,044,000	10,543,000
Marketing and sales	1,219,000	6,060,000	6,077,000	11,853,000
General, administrative and other operating expenses	5,801,000	10,890,000	14,803,000	25,589,000
Impairment of goodwill	0	0	4,150,000	0
Total operating expenses	10,056,000	22,136,000	32,074,000	47,985,000
Income (loss) from operations	(5,472,000)	(2,553,000)	854,000	(18,490,000)
Interest expense, net	(3,414,000)	(3,111,000)	(6,635,000)	(6,223,000)
Other income (expense), net	6,771,000	96,000	7,200,000	(696,000)
Net income (loss) before income taxes	(2,115,000)	(5,568,000)	1,419,000	(25,409,000)
Income tax expense	3,052,000	2,719,000	8,926,000	4,126,000
Net income (loss)	(5,167,000)	(8,287,000)	(7,507,000)	(29,535,000)
Net income attributable to noncontrolling interest	(52,000)	(335,000)	25,000	(447,000)
Net income (loss) attributable to ION	$ (5,219,000)	$ (8,622,000)	$ (7,482,000)	$ (29,982,000)
Net loss per share:
Basic (usd per share)	$ (0.37)	$ (0.61)	$ (0.53)	$ (2.13)
Diluted (usd per share)	$ (0.37)	$ (0.61)	$ (0.53)	$ (2.13)
Weighted average number of common shares outstanding:
Basic (in shares)	14,241	14,098	14,236	14,065
Diluted (in shares)	14,241	14,098	14,236	14,065
Service
Net revenues	$ 15,547,000	$ 30,407,000	$ 63,032,000	$ 58,535,000
Cost of services and products	13,267,000	16,795,000	35,542,000	39,241,000
Product
Net revenues	7,184,000	11,368,000	16,113,000	20,196,000
Cost of services and products	$ 4,880,000	$ 5,397,000	$ 9,508,000	$ 9,995,000