Note 5 - Intangible Assets (Details) (USD $)	12 Months Ended
Apr. 30, 2014	Apr. 30, 2013
Details
Amortization of Acquired Intangible Assets	$ 325,175	$ 216,784

The aggregate expense charged against earnings to allocate the cost of acquired intangible assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.

No definition available.

Name:	us-gaap_AmortizationOfAcquiredIntangibleAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration