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Note 12 - Subsequent Event	6 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Subsequent Events [Text Block]	Note 12 . Subsequent Event In October  2019, we announced that our Board of Directors declared a quarterly cash dividend of $0.16 per share of common stock, payable on December  16, 2019, to shareholders of record at the close of business on November 29, 2019. On October 31, 2019, we completed a business combination (the "GPT Acquisition") whereby we acquired the common stock of Gyros Protein Technologies Holding AB ("GPT"), a company whose business provides Immunoassay and Peptide Synthesis solutions that accelerate the discovery, development and manufacturing of biotherapeutics.  The acquisition price for GPT consisted of cash consideration of $180,000, subject to purchase price adjustments. The acquisition deepens our commitment to biopharmaceutical quality control and is the core of our new division, or segment, Biopharmaceutical Development.  As the acquisition was recently consummated, we have not completed our purchase accounting and are unable to provide the required additional footnote disclosures.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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