Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Components of income (loss) before income tax provision

	2020			2019			2018
	(in thousands)
United States	$	(7,089	)	$	(15,647	)	$	(39,334	)
International		279			428			512
Total loss before income tax provision	$	(6,810	)	$	(15,219	)	$	(38,822	)

Income tax expense (benefit) from continuing operations

	2020			2019			2018
	(in thousands)
Current:
Federal	$	—		$	—		$	32
State		10			10			(6	)
Foreign		—			—			—
		10			10			26
Deferred:
Federal		(562	)		(2,065	)		(6,213	)
State		(159	)		(417	)		(1,188	)
Foreign		—			—			—
		(721	)		(2,482	)		(7,401	)
Change in federal tax rate		—			—			—
Valuation allowance		721			2,482			7,369
Total income tax expense (benefit)	$	10		$	10		$	(6	)

The reconciliations of the U.S. federal statutory rate to the effective income tax rate

	2020			2019			2018
Tax provision at U.S. federal statutory rates		21.0	%		21.0	%		21.0	%
State income taxes net of federal benefit		2.1			3.0			3.2
Deferred tax asset adjustments – NOL related		0.0			(0.4	)		(0.2	)
Non-deductible permanent items		(1.1	)		(0.3	)		(0.2	)
Stock options		(28.0	)		(3.2	)		(3.4	)
Goodwill impairment		0.0			—			(1.5	)
Other		0.0			(3.9	)		(0.2	)
Change in valuation allowance		5.8			(16.3	)		(18.7	)
Effective income tax rate		(0.2	)%		(0.1	)%		0.0	%

Deferred income taxes

	2020			2019
	(in thousands)
Deferred tax assets:
Allowance for doubtful accounts	$	103		$	187
Accrued liabilities		412			826
Net operating loss carryforwards		24,798			23,933
Intangible assets		4,259			4,334
Share-based compensation expense		228			2,120
Other		1,370			406
Total gross deferred tax assets		31,181			31,806
Valuation allowance		(30,447	)		(31,168	)
Total deferred tax assets		734			638
Deferred tax liabilities:
Right of use assets		(733	)		(638	)
Fixed assets		—			—
Other		(1	)		—
Total gross deferred tax liabilities		(734	)		(638	)
Net deferred tax assets	$	—		$	—

Federal and state net operating loss carry-forwards

The federal NOLs expire through 2035 as follows (in millions):

2025	$	4.2
2026		25.5
2027		15.5
2028		5.2
2029		7.7
2030		10.6
2031		1.3
2032		—
2033		0.1
2034		2.5
2035		1.5
Do not expire		30.0
	$	104.1

The state NOLs expire through 2040 as follows (in millions):

2028	$	2.6
2029		5.8
2030		11.0
2034		1.4
2035		0.8
2038		2.3
2039		2.2
2040		0.6
California NOLs		26.8
Other State NOLs		22.1
Total State NOLs	$	48.9

A reconciliation of the beginning and ending amount of unrecognized tax benefits

	2020			2019
	(in thousands)
Balance at January 1,	$	464		$	464
Reductions based on tax positions related to prior years and settlements		(275	)		—
Balance at December 31,	$	189		$	464