Note 15 - Restructuring Costs - Liability Balances Related to Restructuring Costs (Details)	12 Months Ended
Jun. 30, 2018 USD ($)
Balance, beginning	$ 85,000
Restructuring Expense	0
Payments	(85,000)
Adjustments
Balance, ending
Severance and Other Termination Benefits [Member]
Balance, beginning	0
Restructuring Expense
Payments
Adjustments
Balance, ending
Lease Obligation Restructuring [Member]
Balance, beginning	85,000
Restructuring Expense
Payments	(85,000)
Adjustments
Balance, ending
Other Restructuring [Member]
Balance, beginning	0
Restructuring Expense
Payments
Adjustments
Balance, ending

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

+ References

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