Note 9 - Debt (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

Schedule of Debt [Table Text Block]

	Principal Amount of 2020 Notes			Principal Amount of 2020/21 Notes		Debt Discount			Debt Issue Costs			Total Notes		Embedded Derivative			Total
Balance - December 31, 2019	$	14,053		$	—	$	(123	)	$	(30	)	$	13,900	$	—		$	13,900
Amortization of debt discount		—			—		187			—			187		—			187
Amortization of debt issue costs		—			—		—			15			15		—			15
Paid-in-kind interest		47			144		—			—			191		—			191
Exchange of 2020 Notes for 2020/21 Notes		(14,100	)		14,100		—			—			—		—			—
Original issue discount paid with 2020/21 Notes		—			282		(282	)		—			—		—			—
Fair value of 2020/21 embedded derivative		—			—		—			—			—		2,848			2,848
Change in fair value of 2020/21 Notes embedded derivative		—			—		—			—			—		(2,572	)		(2,572	)
Balance - June 30, 2020	$	—		$	14,526	$	(218	)	$	(15	)	$	14,293	$	276		$	14,569

Schedule of Long-term Debt Instruments [Table Text Block]

	June 30 , 2020			December 31, 2019
SBA Loans	$	1,006		$	—
Equipment		298			321
Insurance		73			428
Total notes payable - other		1,377			749
Less current portion		(603	)		(516	)
Long-term portion	$	774		$	233

Schedule of Maturities of Long-term Debt [Table Text Block]

Year ending December 31,
2020 (remaining)	$	223
2021		764
2022		290
2023		65
2024 and thereafter		35
	$	1,377