Reconciliation of Stockholders' (Deficit) Equity (Unaudited) - USD ($)	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Deficit Attributable to Internat'l Isotopes Shareholders	Equity Attributable to Noncontrolling Interest	Total
Beginning balance, value at Dec. 31, 2018	$ 4,131,683	$ 120,805,997	$ (126,541,421)	$ (1,603,741)	$ 1,757,875	$ 154,134
Beginning balance, shares at Dec. 31, 2018	413,168,301
Shares issued under employee stock purchase plan, value	$ 993	4,043		5,036		5,036
Shares issued under employee stock purchase plan, shares	99,372
Stock grant, value	$ 2,798	(2,798)
Stock grant, shares	279,767
Stock in lieu of dividends on convertible preferred C shares, value	$ 34,330	171,650		205,980		205,980
Stock in lieu of dividends on convertible preferred C shares, shares	3,433,000
Shares issued for exercise of employee stock options, value	$ 28,250	55,750		84,000		84,000
Shares issued for exercise of employee stock options, shares	2,825,000
Distribution to non-controlling interest					(6,200)	(6,200)
Stock based compensation		113,093		113,093		113,093
Net (loss) income			(972,689)	(972,689)	314,935	(657,754)
Ending balance, value at Sep. 30, 2019	$ 4,198,054	121,147,735	(127,514,110)	(2,168,321)	2,066,610	(101,711)
Ending balance, shares at Sep. 30, 2019	419,805,440
Beginning balance, value at Jun. 30, 2019	$ 4,197,741	121,125,897	(127,750,572)	(2,426,934)	1,933,946	(492,988)
Beginning balance, shares at Jun. 30, 2019	419,774,105
Shares issued under employee stock purchase plan, value	$ 313	1,285		1,598		1,598
Shares issued under employee stock purchase plan, shares	31,335
Stock based compensation		20,553		20,553		20,553
Net (loss) income			236,462	236,462	132,664	369,126
Ending balance, value at Sep. 30, 2019	$ 4,198,054	121,147,735	(127,514,110)	(2,168,321)	2,066,610	(101,711)
Ending balance, shares at Sep. 30, 2019	419,805,440
Beginning balance, value at Dec. 31, 2019	$ 4,198,423	121,680,163	(128,064,385)	(2,185,799)	2,073,649	(112,150)
Beginning balance, shares at Dec. 31, 2019	419,842,256
Shares issued under employee stock purchase plan, value	$ 3,036	10,394		13,430		13,430
Shares issued under employee stock purchase plan, shares	303,610
Stock grant, value	$ 3,021	(3,021)
Stock grant, shares	302,125
Stock in lieu of dividends on convertible preferred C shares, value	$ 34,080	170,400		204,480		204,480
Stock in lieu of dividends on convertible preferred C shares, shares	3,408,000
Convertible debenture beneficial conversion feature		102,584		102,584		102,584
Warrants issued with convertible debentures		144,976		144,976		$ 144,976
Shares issued for exercise of employee stock options, value	$ 4,167	(4,167)
Shares issued for exercise of employee stock options, shares	416,667					1,000,000
Stock based compensation		80,203		80,203		$ 80,203
Net (loss) income			113,884	113,884	168,790	282,674
Ending balance, value at Sep. 30, 2020	$ 4,242,727	122,181,532	(127,950,501)	(1,526,242)	2,242,439	716,197
Ending balance, shares at Sep. 30, 2020	424,272,658
Beginning balance, value at Jun. 30, 2020	$ 4,237,941	122,171,489	(128,257,551)	(1,848,121)	2,156,976	308,855
Beginning balance, shares at Jun. 30, 2020	423,794,088
Shares issued under employee stock purchase plan, value	$ 619	2,538		3,157		3,157
Shares issued under employee stock purchase plan, shares	61,903
Shares issued for exercise of employee stock options, value	$ 4,167	(4,167)
Shares issued for exercise of employee stock options, shares	416,667
Stock based compensation		11,672		11,672		11,672
Net (loss) income			307,050	307,050	85,463	392,513
Ending balance, value at Sep. 30, 2020	$ 4,242,727	$ 122,181,532	$ (127,950,501)	$ (1,526,242)	$ 2,242,439	$ 716,197
Ending balance, shares at Sep. 30, 2020	424,272,658