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Note 7 - Income Taxes	6 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 7 : Income Taxes For the quarters ended September 30, 201 7 and 2016, the Company recorded an income tax provision of approximately $3.9 million and $2.9 million, respectively, and for the six months ended September 30, 2017 and 2016, the Company recorded an income tax provision of approximately $9.3 million and $6.8 million, respectively. The increases to the income tax provision for the three and six months ended September 30, 2017, are related to an increase in operating income. The effective tax rate for the quarter ended September 30, 2017 was approximately 30.7%, compared to 37.1% for the quarter ended September 30, 2016. The effective tax rate for the six months ended September 30, 2017 was approximately 34.1%, compared to 37.1% for the six months ended September 30, 2016. The decrease to the effective tax rate for the three and six months ended September 30, 2017 can be related to an $807,000 income tax benefit related to restricted stock compensation, which was recognized in the September quarter.

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- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI http://asc.fasb.org/topic&trid=2144680

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