Note 11 - Commitments and Contingencies	12 Months Ended
Mar. 31, 2022
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 11 – Commitments and Contingencies On April 11, 2022, the Company was served notice of a lawsuit filed in the Eighth Judicial District Court in Clark County, Nevada by an individual who alleges he was shot by a security guard at the Teco Facility in May of 2020. The alleged incident occurred after the claimant broke into the Teco Facility during closing hours. GB Sciences, Inc. and its former subsidiaries GB Sciences Nevada, LLC and GB Sciences Las Vegas, LLC, along with the security provider, Protective Force International, Inc., were named as defendants in the lawsuit. The Company holds a certificate of insurance with the insurer for Protective force International and believes it may have coverage under that policy in the event the Company is found liable for damages, however, the Company denies any liability and intends to vigorously defend the lawsuit. We are unable to make any determination at this time as to the likelihood or amount of damages. On April 22, 2020, the Company failed to repay any of the outstanding balance of the Convertible Promissory Note Payable to Iliad Research and Trading, L.P., resulting in a default. On May 20, 2020, Iliad filed a lawsuit against the Company in the Third Judicial District Court of Salt Lake County in the State of Utah demanding repayment of the note. On July 14, 2020, the Court entered judgment in favor of Iliad in the amount of $3,264,594. The Company's obligation to Iliad was satisfied in full on December 16, 2020 upon payment of $3,006,015 pursuant to the Judgment Settlement Agreement (Note 6). On April 22, 2020, the Company was served notice of a lawsuit filed in the Eighth Judicial District Court in Clark County, Nevada by a contractor who had been hired to perform architectural and design services. The lawsuit demanded payment of $73,050 for the services provided. On September 17, 2020, the Company entered into a Mutual Compromise, Settlement, and Release Agreement with the contractor and made payment of $25,000 in full satisfaction of the alleged debt and reduced the cost of the related fixed asset by $48,050. From time to time, the Company may become involved in certain legal proceedings and claims which arise in the ordinary course of business. In management’s opinion, based on consultations with outside counsel, the results of any of these ordinary course matters, individually and in the aggregate, are not expected to have a material effect on our results of operations, financial condition, or cash flows. As more information becomes available, if management should determine that an unfavorable outcome is probable on such a claim and that the amount of such probable loss that it will incur on that claim is reasonably estimable, the Company would record a reserve for the claim in question. If and when the Company records such a reserve, it could be material and could adversely impact its results of operations, financial condition, and cash flows.

Note 11 - Commitments and Contingencies

12 Months Ended

Mar. 31, 2022

Commitments and Contingencies Disclosure [Text Block]

Note 11 – Commitments and Contingencies

On April 11, 2022, the Company was served notice of a lawsuit filed in the Eighth Judicial District Court in Clark County, Nevada by an individual who alleges he was shot by a security guard at the Teco Facility in May of 2020. The alleged incident occurred after the claimant broke into the Teco Facility during closing hours. GB Sciences, Inc. and its former subsidiaries GB Sciences Nevada, LLC and GB Sciences Las Vegas, LLC, along with the security provider, Protective Force International, Inc., were named as defendants in the lawsuit. The Company holds a certificate of insurance with the insurer for Protective force International and believes it may have coverage under that policy in the event the Company is found liable for damages, however, the Company denies any liability and intends to vigorously defend the lawsuit. We are unable to make any determination at this time as to the likelihood or amount of damages.

On April 22, 2020, the Company failed to repay any of the outstanding balance of the Convertible Promissory Note Payable to Iliad Research and Trading, L.P., resulting in a default. On May 20, 2020, Iliad filed a lawsuit against the Company in the Third Judicial District Court of Salt Lake County in the State of Utah demanding repayment of the note. On July 14, 2020, the Court entered judgment in favor of Iliad in the amount of $3,264,594. The Company's obligation to Iliad was satisfied in full on December 16, 2020 upon payment of $3,006,015 pursuant to the Judgment Settlement Agreement (Note 6).

On April 22, 2020, the Company was served notice of a lawsuit filed in the Eighth Judicial District Court in Clark County, Nevada by a contractor who had been hired to perform architectural and design services. The lawsuit demanded payment of $73,050 for the services provided. On September 17, 2020, the Company entered into a Mutual Compromise, Settlement, and Release Agreement with the contractor and made payment of $25,000 in full satisfaction of the alleged debt and reduced the cost of the related fixed asset by $48,050.

From time to time, the Company may become involved in certain legal proceedings and claims which arise in the ordinary course of business. In management’s opinion, based on consultations with outside counsel, the results of any of these ordinary course matters, individually and in the aggregate, are not expected to have a material effect on our results of operations, financial condition, or cash flows. As more information becomes available, if management should determine that an unfavorable outcome is probable on such a claim and that the amount of such probable loss that it will incur on that claim is reasonably estimable, the Company would record a reserve for the claim in question. If and when the Company records such a reserve, it could be material and could adversely impact its results of operations, financial condition, and cash flows.