Note 2 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended					Six Months Ended
	June 30					June 30
(in thousands, except per share amounts)	2017		2016			2017			2016
Numerator
Net income (loss)	$	13,925	$	(4,720	)	$	(7,843	)	$	(9,012	)
Denominator
Weighted-average common shares outstanding		13,885		9,168			11,578			9,168
Shares used in calculation - basic		13,885		9,168			11,578			9,168
Shares issuable for warrants		414		-			-			-
Shares used in calculation - diluted		14,299		9,168			11,578			9,168
Net income (loss) per share from continuing operations
Basic	$	1.00	$	(0.51	)	$	(0.68	)	$	(0.98	)
Diluted	$	0.97	$	(0.51	)	$	(0.68	)	$	(0.98	)

Share-based Compensation, Stock Options, Activity [Table Text Block]

			Weighted Avg.
	Shares		Exercise Price
Balance December 31, 2016		243,853	$	39.06
Granted		-	$	-
Cancelled		-	$	-
Balance March 31, 2017		243,853	$	38.90
Granted		-	$	-
Cancelled		-	$	-
Balance June 30, 2017		243,853	$	38.90

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	Balance at June 30, 2017
(Amounts in thousands)	Level I		Level II		Level III		Total
Certificates of deposit		106		-		-		106
Total assets		106		-		-		106
Warrant liabilities		-		-		38		38
Total liabilities		-		-		38		38

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

	Level III				Level III
	Warrant				Derivative
(Dollars in thousands)	Liabilities			(Dollars in thousands)	Liabilities
Balance as of December 31, 2016	$	5,307		Balance as of December 31, 2016	$	8,122
Issuance of warrants		2,405		Issuance of convertible debentures		-
Change in fair value		5,181		Change in fair value		10,596
Balance as of March 31, 2017	$	12,893		Balance as of March 31, 2017	$	18,718
Issuance (exercise) of warrants, net		269		Issuance of convertible debentures		-
Change in fair value		(6,950	)	Change in fair value		(10,728	)
Write off of warrants		(6,174	)	Write off of derivative liability		(7,990	)
Balance as of June 30, 2017	$	38		Balance as of June 30, 2017	$	-

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block]

	June 30 , 201 7
Expected volatility		93.56	%
Risk-free interest rate		1.55	%
Weighted average expected lives in years		2.79
Expected dividend		0	%