Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Sale of product	$ 9,364,896	$ 8,955,204
Cost of product	3,904,869	4,289,490
Gross profit	5,460,027	4,665,714
Operating costs and expenses:
Salaries and contract labor	2,827,742	2,560,293
General, administrative and consulting	2,828,460	2,400,343
Research and development	219,498	263,375
Total operating expenses	5,875,700	5,224,011
Operating loss	(415,673)	(558,297)
Other income (expense):
Other income (expense)	3,637,026	(114,509)
Interest income	3,192	13,090
Interest expense	(781,837)	(541,274)
Total other income (expense)	2,858,381	(642,693)
Net income (loss)	2,442,708	(1,200,990)
Income attributable to non-controlling interest	240,057	321,974
Net income (loss) attributable to International Isotopes Inc.	$ 2,202,651	$ (1,522,964)
Net income per common share - basic	$ 0.01
Net income per common share - diluted	$ 0.01
Weighted average common shares outstanding - basic	423,091,174	418,077,055
Weighted average common shares outstanding - diluted	431,208,535	418,077,055