Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Taxes

Schedule of consolidated income before taxes for domestic and foreign operations

	Year ended December 31,
	2019			2018
Domestic	$	(6,207	)	$	(7,751	)
Foreign		(2,145	)		(2,496	)
Total	$	(8,352	)	$	(10,247	)

Schedule of components of (provision) for income taxes

	Year ended December 31,
	2019			2018
Current:
Federal	$	26		$	(71	)
State		(23	)		37
Foreign		(59	)		117
Total current		(56	)		83
Deferred:
Federal		1,621			2,233
State		413			667
Foreign		393			495
Total		2,427			3,395
Change in valuation allowance		(2,427	)		(9,918	)
Total deferred		—			(6,523	)
Tax provision	$	(56	)	$	(6,440	)

Schedule of income tax (provision) differs from that computed at the federal statutory corporate income tax rate

	Year ended December 31,
	2019			2018
Tax benefit at federal statutory rate	$	1,754		$	2,152
State income tax benefit (provision), net of federal benefit		318			413
Research and development tax credits		290			250
Foreign earnings or losses taxed at different rates		(27	)		12
Tax rate change		(31	)		23
Other		67			628
Change in valuation allowance		(2,427	)		(9,918	)
Tax provision	$	(56	)	$	(6,440	)

Schedule of tax effects of significant temporary differences representing net deferred tax assets and liabilities

	2019			2018
Deferred revenue	$	36		$	50
Basis difference in intangible assets		3,157			3,283
Inventory reserve		2,247			2,235
Net operating loss carryforwards		6,438			4,067
Research and development tax credits		1,042			794
Accrued expenses		163			143
Stock-based compensation		322			362
Allowance for sales returns and doubtful accounts		107			160
Difference in property and equipment basis		(134	)		(185	)
Other		382			551
Total net deferred income tax asset		13,760			11,460
Less: Valuation allowance		(13,760	)		(11,460	)
Net deferred income tax asset (liability)	$	—		$	—

Schedule of reconciliation of the beginning and ending amount of liabilities associated with uncertain tax positions

	Year ended December 31,
	2019			2018
Balance - beginning of year	$	679		$	652
Additions based on tax positions related to the current year		50			58
Additions for tax positions of prior years		43			118
Reductions for tax positions of prior years		—			(53	)
Settlements		(375	)		—
Lapse in statutes of limitations		(99	)		(96	)
Uncertain tax positions, ending balance	$	298		$	679