Note 13 - Income Taxes (Tables)

6 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Six Months Ended December 31,			Years Ended June 30,
	2017			2017			2016
Statutory federal income tax benefit	$	(1,703,000	)	$	(10,121,000	)	$	(6,300,000	)
Unbenefited net operating losses and credits		(14,427,000	)		2,281,000			3,391,000
United States tax reform rate change		13,658,000			--			--
Disallowed financing costs		149,000			6,959,000			2,607,000
State and local taxes		60,000			88,000			69,000
Other		25,000			120,000			233,000
Total income tax benefit	$	(2,238,000	)	$	(673,000	)	$	--

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	Six Month s Ended December 31,			Years Ended June 30,
	2017			2017			2016
Deferred tax assets:
Net operating loss carryforwards	$	29,682,000		$	43,687,000		$	41,023,000
Income tax credit carryforwards		2,667,000			2,419,000			2,367,000
Stock compensation		751,000			1,047,000			874,000
Other		831,000			1,124,000			1,858,000
Total deferred tax assets		33,931,000			48,277,000			46,122,000
Deferred tax liabilities
Indefinite lived intangible assets		(4,730,000	)		(6,968,000	)		(7,641,000	)
Depreciation and amortization		(126,000	)		(176,000	)		(230,000	)
Total deferred tax liabilities		(4,856,000	)		(7,144,000	)		(7,871,000	)
Valuation allowance		(33,805,000	)		(48,101,000	)		(45,892,000	)
Net deferred taxes	$	(4,730,000	)	$	(6,968,000	)	$	(7,641,000	)