Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Cumulative Effect of Adjustments for New Accounting Pronouncements on Balance Sheet [Table Text Block]

			Adjustments
			Due to
	December 31,		Adoption of			January 1,
	2018		ASC 842			2019
Other assets	$	171	$	629	(1)	$	800
Total assets	$	46,834	$	629	(1)	$	47,463
Accrued liabilities	$	6,766	$	230	(2)	$	6,996
Total current liabilities	$	10,760	$	230	(2)	$	10,990
Other noncurrent liabilities	$	634	$	399	(2)	$	1,033
Total liabilities	$	41,922	$	629	(2)	$	42,551
Total liabilities and stockholders' equity	$	46,834	$	629	(2)	$	47,463

Contract with Customer, Asset and Liability [Table Text Block]

	December 31,		December 31,
	2019		2018		Change
Customer contracts liabilities:
Marketing programs	$	108	$	639	$	(531	)
Other		-		47		(47	)
Total	$	108	$	686	$	(578	)

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

	For the year ended December 31, 2018
	As Reported			Balances Without Adoption of ASC 606			Effect of Change Higher/(Lower)
Consolidated Statement of Operations
Revenue	$	18,517		$	17,780		$	737		(1)
Cost of revenue	$	11,197		$	11,209		$	(12	)	(2)
Gross profit	$	7,320		$	6,571		$	749		(3)
Loss from operations	$	(44,965	)	$	(45,714	)	$	749		(3)
Comprehensive and net loss	$	(49,981	)	$	(50,730	)	$	749		(3)
Net loss per share:
Basic and diluted	$	(160.92	)	$	(163.33	)	$	2.41
Weighted average shares		310,589			310,589

	As of December 31, 2018
	As Reported			Balances Without Adoption of ASC 606			Effect of Change Higher/(Lower)
Consolidated Balance Sheets
Liabilities
Accrued liabilities	$	6,766		$	7,014		$	(248	)	(1)
Other noncurrent liabilities	$	634		$	1,313		$	(679	)	(2)
Equity
Accumulated deficit	$	(155,385	)	$	(156,311	)	$	926		(3)

Revenue from External Customers by Geographic Areas [Table Text Block]

	Year Ended
	December 31,
	2019		2018
United States	$	3,672		13,606
Asia Pacific		2,349		2,891
Europe and Middle East		254		1,369
Canada		277		563
Latin America		15		51
Other		-		37
Total	$	6,567	$	18,517

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Year Ended
	December 31,
	2019			2018
Convertible preferred stock:
Series A convertible preferred stock		1,852,173	(a)		-
Series B convertible preferred stock		31,678	(b)		-
Warrants to purchase common stock		24,737,618		6,408
Stock options to purchase common stock		10,087,678			40,195
Restricted common stock awards		2,620			575