CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net revenues	$ 16,234,000	$ 53,239,000	$ 95,379,000	$ 131,970,000
Cost of services and products	14,945,000	27,951,000	59,995,000	77,187,000
Impairment of multi-client data library	0	0	1,167,000	0
Gross profit (loss)	1,289,000	25,288,000	34,217,000	54,783,000
Operating expenses:
Research, development and engineering	2,899,000	4,878,000	9,943,000	15,421,000
Marketing and sales	2,811,000	5,591,000	8,888,000	17,444,000
General, administrative and other operating expenses	6,743,000	10,961,000	21,546,000	36,550,000
Impairment of goodwill	0	0	4,150,000	0
Total operating expenses	12,453,000	21,430,000	44,527,000	69,415,000
Income (loss) from operations	(11,164,000)	3,858,000	(10,310,000)	(14,632,000)
Interest expense, net	(3,669,000)	(3,155,000)	(10,304,000)	(9,378,000)
Other income (expense), net	(525,000)	(242,000)	6,675,000	(938,000)
Net income (loss) before income taxes	(15,358,000)	461,000	(13,939,000)	(24,948,000)
Income tax expense	1,056,000	3,790,000	9,982,000	7,916,000
Net loss	(16,414,000)	(3,329,000)	(23,921,000)	(32,864,000)
Net income attributable to noncontrolling interest	(193,000)	(394,000)	(168,000)	(841,000)
Net income (loss) attributable to ION	$ (16,607,000)	$ (3,723,000)	$ (24,089,000)	$ (33,705,000)
Net loss per share:
Basic (usd per share)	$ (1.16)	$ (0.26)	$ (1.69)	$ (2.39)
Diluted (usd per share)	$ (1.16)	$ (0.26)	$ (1.69)	$ (2.39)
Weighted average number of common shares outstanding:
Basic (in shares)	14,278	14,181	14,255	14,104
Diluted (in shares)	14,278	14,181	14,255	14,104
Service
Net revenues	$ 10,202,000	$ 41,990,000	$ 73,234,000	$ 100,525,000
Cost of services and products	11,491,000	22,690,000	47,033,000	61,931,000
Product
Net revenues	6,032,000	11,249,000	22,145,000	31,445,000
Cost of services and products	$ 3,454,000	$ 5,261,000	$ 12,962,000	$ 15,256,000