Note 16 - Commitments and Contingencies (Details Textual) - USD ($)	12 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Lease and Loan Commitments [Member]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 57,000,000	$ 88,400,000
The 401K Plan [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	94,287	97,607	$ 121,889
Operating Leases, Rent Expense	$ 684,100	$ 634,000	$ 680,000

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

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