Note 15 - Related Party Transactions (Details Textual) (USD $)	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2014	May 02, 2014
License Agreement [Member] | BKF Capital Group [Member]
Monthly License Fee Receivable					$ 1,200
Proceeds from License Fees Received	2,400	9,600
Interlink Electronics, Inc. [Member]
Related Party Transaction, Amounts of Transaction	$ 7,000	$ 22,000	$ 45,000	$ 116,000