Note 6 - Interest Expense - Interest Expense Components (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Amortization of prepaid financing costs	$ 55	$ 66
Accretion of discount on Convertible Note - CD Financial	3	39
Interest on capitalized lease obligations	19	25
Interest Expense	630	926
Other interest expense	24	27
CD Financial LLC [Member]
Interest expense related party	115	430
Other Related Party [Member]
Interest expense related party	24	28
Senior Notes [Member]
Interest on Senior Debt	387	304
Term Note [Member] \| PNC Equipment Finance LLC [Member]
Interest Expense	$ 3	$ 7

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The amount, during the lease term, of each minimum [capital] lease payment allocated to interest expense so as to produce a constant periodic rate of interest on the remaining balance of the capital lease obligation.

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Aggregate amount of interest paid or due on all long-term debt.

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Interest expense incurred during the reporting period on subordinated notes and debentures. Includes amortization of expenses incurred in the issuance of subordinated notes and debentures.

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