Note 11 - Concentrations	3 Months Ended
Mar. 31, 2022
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	NOTE 11 -- CONCENTRATIONS Milestone Scientific has informal arrangements with third-party U.S. manufacturers of the STA, CompuDent and CompuMed devices, pursuant to which they manufacture these products under specific purchase orders but without any long-term contract or minimum purchase commitment. Consequently, advances on contracts have been classified as current at March 31, 2022 and 2021. The termination of the manufacturing relationship with any of these manufacturers could have a material adverse effect on Milestone Scientific’s ability to produce and sell its products. Although alternate sources of supply exist, and new manufacturing relationships could be established, Milestone Scientific would need to recover its existing tools or have new tools produced. Establishment of new manufacturing relationships could involve significant expense and delay. Any curtailment or interruption of the supply, because of termination of such a relationship, would have a material adverse effect on Milestone Scientific’s financial condition, business, and results of operations. For the three months ended March 31, 2022, an aggregate of approximately 13%, 13%, and 31% of the Company’s net product sales were from three distributors, respectively. For the three months ended March 31, 2021, an aggregate of approximately 29% of the Company’s net product sales were from one domestic distributor, respectively. Additionally, three months ended March 31, 2021 approximately 18% of the Company’s net product sales are to Milestone China. For the three months ended March 31, 2022, we had the four distributors that accounted for 12%, 18%, 20,% and 21% amount of accounts receivable, respectively. As of December 31, 2021 we had three distributors that accounted for 13%, 28%, and 29% amount of accounts receivable, respectively.

Note 11 - Concentrations

3 Months Ended

Mar. 31, 2022

Concentration Risk Disclosure [Text Block]

NOTE 11 -- CONCENTRATIONS

Milestone Scientific has informal arrangements with third-party U.S. manufacturers of the STA, CompuDent and CompuMed devices, pursuant to which they manufacture these products under specific purchase orders but without any long-term contract or minimum purchase commitment. Consequently, advances on contracts have been classified as current at March 31, 2022 and 2021. The termination of the manufacturing relationship with any of these manufacturers could have a material adverse effect on Milestone Scientific’s ability to produce and sell its products. Although alternate sources of supply exist, and new manufacturing relationships could be established, Milestone Scientific would need to recover its existing tools or have new tools produced. Establishment of new manufacturing relationships could involve significant expense and delay. Any curtailment or interruption of the supply, because of termination of such a relationship, would have a material adverse effect on Milestone Scientific’s financial condition, business, and results of operations.

For the three months ended March 31, 2022, an aggregate of approximately 13%, 13%, and 31% of the Company’s net product sales were from three distributors, respectively. For the three months ended March 31, 2021, an aggregate of approximately 29% of the Company’s net product sales were from one domestic distributor, respectively. Additionally, three months ended March 31, 2021 approximately 18% of the Company’s net product sales are to Milestone China.

For the three months ended March 31, 2022, we had the four distributors that accounted for 12%, 18%, 20,% and 21% amount of accounts receivable, respectively. As of December 31, 2021 we had three distributors that accounted for 13%, 28%, and 29% amount of accounts receivable, respectively.