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Note 13 - Commitments and Contingencies (Details) - USD ($)
Mar. 19, 2012
Jun. 30, 2015
Jun. 30, 2013
Standby Letters of Credit [Member]      
Note 13 - Commitments and Contingencies (Details) [Line Items]      
Letters of Credit Outstanding, Amount   $ 0  
LSI Virticus [Member]      
Note 13 - Commitments and Contingencies (Details) [Line Items]      
Business Combination, Contingent Consideration, Liability $ 877,000   $ 0
Liability Payment Period 5 years    
Loss Contingency, Range of Possible Loss, Maximum   $ 2,000,000  
LSI Virticus [Member] | Reversed [Member]      
Note 13 - Commitments and Contingencies (Details) [Line Items]      
Business Acquisition, Contingent Consideration Accrued Interest     $ 20,000