Note 8 - Unrecognized Tax Benefits	9 Months Ended
Jan. 31, 2014
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	8. UnrecognizedTaxBenefits The total amount of gross unrecognized tax benefits was $8,938 at April 30, 2013. At January 31, 2014, gross unrecognized tax benefits were $11,787. If this unrecognized tax benefit were ultimately recognized, $7,662 is the amount that would impact our effective tax rate. The total amount of accrued interest and penalties for such unrecognized tax benefits was $432 at January 31, 2014 and $286 at April 30, 2013. Net interest and penalties included in income tax expense for the nine months ended January 31, 2014 was $146, and an expense of $141 for the same period of 2013. These unrecognized tax benefits relate to certain state income tax filing positions claimed. A number of years may elapse before an uncertain tax position is audited and ultimately settled. It is difficult to predict the ultimate outcome or the timing of resolution for uncertain tax positions. It is reasonably possible that the amount of unrecognized tax benefits could significantly increase or decrease within the next twelve months. These changes could result from the expiration of the statute of limitations, examinations or other unforeseen circumstances. The Company currently has no ongoing federal or state income tax examinations. The Company does not have any outstanding litigation related to tax matters. At this time, management expects the aggregate amount of unrecognized tax benefits to decrease by approximately $1,518 within the next 12 months. This expected decrease is due to the expiration of statute of limitations related to certain state income tax filing positions. The statute of limitations for federal income tax filings remains open for the tax years 2010 and forward. The statute of limitations for state income tax filings remains open for the tax years 2009 and forward. In July 2013, the Financial Accounting Standards Board issued Accounting Standards Update No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists, to provide guidance on the presentation of unrecognized tax benefits. The pronouncement requires unrecognized tax benefits to be offset on the balance sheet by any same-jurisdiction net operating loss or tax credit carryforward that would be used to settle the position with a tax authority. The pronouncement is effective for fiscal years beginning after December 15, 2013 and will be adopted by the Company May 1, 2014. We are currently evaluating the impact of adoption on our financial statements. We do not expect it to have a material impact on our consolidated financial statements.

Note 8 - Unrecognized Tax Benefits

9 Months Ended

Jan. 31, 2014

8. UnrecognizedTaxBenefits

The total amount of gross unrecognized tax benefits was $8,938 at April 30, 2013. At January 31, 2014, gross unrecognized tax benefits were $11,787. If this unrecognized tax benefit were ultimately recognized, $7,662 is the amount that would impact our effective tax rate. The total amount of accrued interest and penalties for such unrecognized tax benefits was $432 at January 31, 2014 and $286 at April 30, 2013. Net interest and penalties included in income tax expense for the nine months ended January 31, 2014 was $146, and an expense of $141 for the same period of 2013. These unrecognized tax benefits relate to certain state income tax filing positions claimed.

A number of years may elapse before an uncertain tax position is audited and ultimately settled. It is difficult to predict the ultimate outcome or the timing of resolution for uncertain tax positions. It is reasonably possible that the amount of unrecognized tax benefits could significantly increase or decrease within the next twelve months. These changes could result from the expiration of the statute of limitations, examinations or other unforeseen circumstances. The Company currently has no ongoing federal or state income tax examinations. The Company does not have any outstanding litigation related to tax matters. At this time, management expects the aggregate amount of unrecognized tax benefits to decrease by approximately $1,518 within the next 12 months. This expected decrease is due to the expiration of statute of limitations related to certain state income tax filing positions.

The statute of limitations for federal income tax filings remains open for the tax years 2010 and forward. The statute of limitations for state income tax filings remains open for the tax years 2009 and forward.

In July 2013, the Financial Accounting Standards Board issued Accounting Standards Update No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists, to provide guidance on the presentation of unrecognized tax benefits. The pronouncement requires unrecognized tax benefits to be offset on the balance sheet by any same-jurisdiction net operating loss or tax credit carryforward that would be used to settle the position with a tax authority. The pronouncement is effective for fiscal years beginning after December 15, 2013 and will be adopted by the Company May 1, 2014. We are currently evaluating the impact of adoption on our financial statements. We do not expect it to have a material impact on our consolidated financial statements.

- 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.

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