Annual report pursuant to Section 13 and 15(d)

Income Taxes (Tables)

v3.21.1
Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Effective Income Tax Rate Reconciliation
The difference between income taxes expected at the U.S. federal statutory income tax rate of 21% and the reported income tax expense (benefit) are summarized as follows:
Year Ended December 31,
2020 2019
Income tax at statutory rate $ (4,661) $ (2,703)
Valuation allowance 4,408  2,948 
State income tax, net of federal benefit (330) (606)
Business tax credit net of reserves —  — 
Non-deductible expenses 585  365 
Foreign income taxes at different rate —  1 
Income tax expense $ 2  $ 5 
Effective tax rate (0.01) % (0.04) %
Provision Expense for Income Taxes
The provision expense for income taxes consists of the following:
Year Ended December 31,
2020 2019
Current:
Federal $ —  $ — 
State 2  5 
Foreign —  — 
Total current 2  5 
Deferred:
Federal —  — 
State —  — 
Foreign —  — 
Total deferred —  — 
Total $ 2  $ 5 
Components of Net Deferred Income Taxes
The components of net deferred income taxes consist of the following:
December 31,
2020 2019
Deferred tax assets:
Net operating loss $ 30,705  $ 26,285 
Reserves and accruals 3,739  3,842 
Tax credits 1,193  1,463 
Gross deferred tax assets 35,637  31,590 
Less valuation allowance (35,100) (31,349)
Total deferred tax assets 537  241 
Deferred tax liabilities:
Amortization of acquired intangibles (537) (241)
Total deferred tax liabilities (537) (241)
Net deferred tax liabilities $ —  $ — 
Reconciliation of Unrecognized Tax Benefits
The following is a tabular reconciliation of the total amounts of unrecognized tax benefits:
December 31,
2020 2019
Unrecognized tax benefits, beginning of period $ 1,531  $ 1,516 
Tax positions taken in prior periods:
Gross increases 69  — 
Gross decreases (297) — 
Tax positions taken in current period:
Gross increases 11  15 
Settlements —  — 
Lapse of statute of limitations —  — 
Unrecognized tax benefits, end of period $ 1,314  $ 1,531 
    Our