Note 13 - Subsequent Events	9 Months Ended
Dec. 31, 2019
Notes to Financial Statements
Subsequent Events [Text Block]	13. Subsequent Events: On February 4, 2020, the Board of Directors of the Company declared a $0.115 dividend per share of common stock with respect to the quarter ended December 31, 2019. The dividend will be paid to stockholders of record on February 19, 2020 and will be disbursed on March 4, 2020.

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.

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

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration