Note 2 - Summary of Significant Accounting Policies (Details Textual)	6 Months Ended	12 Months Ended
	Dec. 31, 2017 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)
Maximum Period Of Agreement	21 years
Cash and Cash Equivalents, at Carrying Value	$ 3,513,000	$ 3,623,000	$ 5,835,000
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(5,000)	$ (1,000)	(32,000)
Goodwill, Impairment Loss	$ 0
Number of Reportable Segments	2	2
Income Tax Examination, Penalties and Interest Accrued	$ 0
Unrecognized Tax Benefits	0	$ 0	0
Restricted Cash, Noncurrent	1,000,000	$ 0	$ 0
Clinical Protocols [Member]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 0
Noncompete Agreements [Member]
Finite-Lived Intangible Asset, Useful Life		5 years	5 years
Impairment of Intangible Assets, Finite-lived		$ 310,000
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life	3 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life	10 years
INDIA
Cash and Cash Equivalents, at Carrying Value	$ 71,000	$ 46,000	$ 104,000