Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Product sales, net	$ 8,374,501	$ 9,622,076
Cost of products sold	2,656,142	5,190,775
Gross profit	5,718,359	4,431,301
Selling, general and administrative expenses	9,527,429	10,645,206
Research and development expenses	189,923	245,636
Impairment to long lived assets		1,539,794
Total operating expenses	9,717,352	12,430,636
Loss from operations	(3,998,993)	(7,999,335)
Other expenses	(10,408)	(7,232)
Interest income	1,543	7,447
Change in fair value of derivative liabilities	(3,635,580)
Loss before provision for income taxes and net of equity investments	(7,643,438)	(7,999,120)
Provision for income taxes	(18,126)	(23,986)
Loss before equity in net earnings of equity investments	(7,661,564)	(8,023,106)
Loss from earnings on China joint venture	(81,324)	(329,700)
Net loss	(7,580,240)	(7,691,771)
Net loss attributable to noncontrolling interests	55,872	260,126
Net loss attributable to Milestone Scientific Inc.	$ (7,524,368)	$ (7,431,645)
Net loss per share applicable to common stockholders—
Basic (in dollars per share)	$ (0.16)	$ (0.21)
Diluted (in dollars per share)	$ (0.16)	$ (0.21)
Weighted average shares outstanding and to be issued—
Basic (in shares)	45,740,050	35,299,034
Diluted (in shares)	45,740,050	35,299,034
Milestone Education LLC [Member]
Loss from earnings on China joint venture		$ (1,635)
China Joint Venture [Member]
Loss from earnings on China joint venture	$ (81,324)	$ (329,700)