Note 7 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

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

	December 31,
	2018			2017
Deferred tax assets:
Net operating losses	$	65,852		$	59,551
Fixed asset basis difference		4,551			4,559
Contributions carryover		32			4
Deferred compensation		1,073			1,352
Accrued liabilities		492			971
Total deferred tax assets		72,000			66,437
Valuation allowance for deferred tax assets		(72,000	)		(66,437	)
Net deferred tax asset	$	-		$	-

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

	Year Ended December 31,
	201 8			201 7
Expected federal income tax benefit: (2018 at 21%; 2017 at 34%)	$	(5,516	)	$	(11,477	)
Loss with no tax benefit provided		4,175			8,156
State income tax		6			4
Non-deductible expenses and other		1,341			3,321
Income tax expense	$	6		$	4