Note 1 - Description of Business and Summary of Significant Accounting Policies	9 Months Ended
Dec. 31, 2014
Accounting Policies [Abstract]
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	Note 1 -Description of Business and Summary of Significant Accounting Policies Description of Business Mesa Laboratories, Inc. was incorporated under the laws of the State of Colorado on March 26, 1982. The terms “we,” “us,” “our,” the “Company” or “Mesa” are used in this report to refer collectively to the parent company and the subsidiaries through which our various businesses are actually conducted. We pursue a strategy of focusing primarily on quality control products, which are sold into niche markets that are driven by regulatory requirements. We prefer markets that have limited competition where we can establish a commanding presence and achieve high gross margins. We are organized into three divisions across six physical locations. Our Instruments Division designs, manufactures and markets quality control instruments and disposable products utilized in connection with the healthcare, pharmaceutical, food and beverage, medical device, industrial hygiene, environmental air sampling and semiconductor industries. Our Biological Indicators Division manufactures and markets biological indicators and distributes chemical indicators used to assess the effectiveness of sterilization processes, including steam, gas, hydrogen peroxide, ethylene oxide and radiation, in the hospital, dental, medical device and pharmaceutical industries. Our Continuous Monitoring Division designs, develops and markets systems which are used to monitor various environmental parameters such as temperature, humidity and differential pressure to ensure that critical storage and processing conditions are maintained in hospitals, pharmaceutical and medical device manufacturers, blood banks, pharmacies and a number of other laboratory and industrial environments Basis of Presentation The accompanying condensed consolidated balance sheet as of March 31, 2014, has been derived from audited consolidated financial statements. The accompanying unaudited interim condensed consolidated financial statements have been prepared on the same basis as our annual audited consolidated financial statements and in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial statements. In the opinion of management, such unaudited information includes all adjustments (consisting only of normal recurring accruals) necessary for a fair presentation of this interim information. Operating results and cash flows for interim periods are not necessarily indicative of results that can be expected for the entire year. The information included in this report should be read in conjunction with our audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended March 31, 2014. The summary of our significant accounting policies is incorporated by reference to our Annual Report on Form 10-K for the year ended March 31, 2014. Recently Issued Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) and International Accounting Standards Board (“IASB”) issued a jointly converged standard on the recognition of revenue from contracts with customers. The issued guidance converges the criteria for reporting revenues, as well as requiring disclosures sufficient to describe the nature, amount, timing and uncertainty of revenues and cash flows arising from these contracts. Companies can transition to the standard either retrospectively or as a cumulative effective adjustment as of the date of adoption. The new standard is effective for our fiscal year (and interim periods within that year) ending March 31, 2018. We are evaluating the impact of this standard on our condensed consolidated financial statements and disclosures.

Note 1 - Description of Business and Summary of Significant Accounting Policies

9 Months Ended

Dec. 31, 2014

Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]

Note 1 -Description of Business and Summary of Significant Accounting Policies

Description of Business

Mesa Laboratories, Inc. was incorporated under the laws of the State of Colorado on March 26, 1982. The terms “we,” “us,” “our,” the “Company” or “Mesa” are used in this report to refer collectively to the parent company and the subsidiaries through which our various businesses are actually conducted. We pursue a strategy of focusing primarily on quality control products, which are sold into niche markets that are driven by regulatory requirements. We prefer markets that have limited competition where we can establish a commanding presence and achieve high gross margins. We are organized into three divisions across six physical locations. Our Instruments Division designs, manufactures and markets quality control instruments and disposable products utilized in connection with the healthcare, pharmaceutical, food and beverage, medical device, industrial hygiene, environmental air sampling and semiconductor industries. Our Biological Indicators Division manufactures and markets biological indicators and distributes chemical indicators used to assess the effectiveness of sterilization processes, including steam, gas, hydrogen peroxide, ethylene oxide and radiation, in the hospital, dental, medical device and pharmaceutical industries. Our Continuous Monitoring Division designs, develops and markets systems which are used to monitor various environmental parameters such as temperature, humidity and differential pressure to ensure that critical storage and processing conditions are maintained in hospitals, pharmaceutical and medical device manufacturers, blood banks, pharmacies and a number of other laboratory and industrial environments

Basis of Presentation

The accompanying condensed consolidated balance sheet as of March 31, 2014, has been derived from audited consolidated financial statements. The accompanying unaudited interim condensed consolidated financial statements have been prepared on the same basis as our annual audited consolidated financial statements and in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial statements. In the opinion of management, such unaudited information includes all adjustments (consisting only of normal recurring accruals) necessary for a fair presentation of this interim information. Operating results and cash flows for interim periods are not necessarily indicative of results that can be expected for the entire year. The information included in this report should be read in conjunction with our audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended March 31, 2014.

The summary of our significant accounting policies is incorporated by reference to our Annual Report on Form 10-K for the year ended March 31, 2014.

Recently Issued Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) and International Accounting Standards Board (“IASB”) issued a jointly converged standard on the recognition of revenue from contracts with customers. The issued guidance converges the criteria for reporting revenues, as well as requiring disclosures sufficient to describe the nature, amount, timing and uncertainty of revenues and cash flows arising from these contracts. Companies can transition to the standard either retrospectively or as a cumulative effective adjustment as of the date of adoption. The new standard is effective for our fiscal year (and interim periods within that year) ending March 31, 2018. We are evaluating the impact of this standard on our condensed consolidated financial statements and disclosures.