Note 13 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

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

	Year Ended December 31,			Six Months Ended December 31,			Year Ended June 30,
	2018			2017			2017
Statutory federal income tax benefit	$	(9,591,000	)	$	(1,703,000	)	$	(10,121,000	)
Intangible assets		3,119,000			--			--
Change in valuation allowance		(2,084,000	)		--			--
Expiration of net operating losses		1,271,000			(14,427,000	)		2,281,000
United States tax reform rate change		--			13,658,000			--
Disallowed financing costs		240,000			149,000			6,959,000
State and local taxes		2,344,000			60,000			88,000
Other		(29,000	)		25,000			120,000
Total income tax benefit	$	(4,730,000	)	$	(2,238,000	)	$	(673,000	)

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

	December 31,			December 31,
	2018			2017
Deferred tax assets:
Net operating loss carryforwards	$	27,312,000		$	29,682,000
Income tax credit carryforwards		2,769,000			2,667,000
Stock compensation		850,000			751,000
Other		1,027,000			831,000
Total deferred tax assets		31,958,000			33,931,000
Deferred tax liabilities
Indefinite lived intangible assets		--			(4,730,000	)
Depreciation and amortization		(419,000	)		(126,000	)
Total deferred tax liabilities		(419,000	)		(4,856,000	)
Valuation allowance		(31,539,000	)		(33,805,000	)
Net deferred taxes	$	--		$	(4,730,000	)