Note 9 - Debt (Tables)

9 Months Ended

Sep. 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		—			—			270			—			270			—			270
Amortization of debt issue costs		—			—			—			20			20			—			20
Paid-in-kind interest		47			269			—			—			316			—			316
Exchange of 2020 Notes for 2020/21 Notes		(14,100	)		14,100			—			—			—			—			—
Original issue discount paid with 2020/21 Notes		—			282			(282	)		—			—			—			—
Conversion of 2020/21 Notes into common stock		—			(2,000	)		—			—			(2,000	)		—			(2,000	)
Fair value of 2020/21 embedded derivative		—			—			—			—			—			2,848			2,848
Change in fair value of 2020/21 Notes embedded derivative		—			—			—			—			—			(2,819	)		(2,819	)
Balance - September 30, 2020	$	—		$	12,651		$	(135	)	$	(10	)	$	12,506		$	29		$	12,535

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

	September 30 , 2020			December 31, 2019
SBA Loans	$	1,006		$	—
Equipment		281			321
Insurance		—			428
Total notes payable - other		1,287			749
Less current portion		(704	)		(516	)
Long-term portion	$	583		$	233

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

Year ending December 31,
2020 (remaining)	$	134
2021		763
2022		290
2023		65
2024 and thereafter		35
	$	1,287