Note 11 - Commitments and Contingencies (Details) - Minimum Royalty Payments Per Year (USD $)	Mar. 31, 2015
Minimum Royalty Payments Per Year [Abstract]
2015	$ 450,000
2016	450,000us-gaap_OtherCommitmentDueInSecondYear
2017	450,000us-gaap_OtherCommitmentDueInThirdYear
Total	$ 1,350,000us-gaap_OtherCommitment

Minimum amount of other commitment maturing in the next fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

No definition available.

Name:	us-gaap_OtherCommitmentDueInNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant