Note 7 - Deferred Revenues	6 Months Ended
Note 7 - Deferred Revenues	Sep. 30, 2016
Deferred Revenue Disclosure [Abstract]
Deferred Revenue Disclosure [Text Block]	Note 7 – Deferred Revenues In June 2016, the Company negotiated a settlement with a customer in the amount of $679,935 for price increases due to delays on a production release. Deferred revenues are recognized based upon the shipment of units under this contract. During the three and six months ended September 30, 2016, the Company recognized $128,440 and $342,836, respectively, of this amount as revenues. As of September 30, 2016, the remaining deferred revenues related to the above-mentioned settlement amounted to $337,099. It is expected that the balance of this amount will be recognized in the current fiscal year.

The entire disclosure for deferred revenues at the end of the reporting period, and description and amounts of significant changes that occurred during the reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.