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INCOME TAXES (Tables)
12 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Provision for Continuing Operations The income tax provision for continuing operations consists of the following as of December 31:
20202019
Deferred:
Federal$(143)$178 
State(26)32 
(169)210 
Valuation allowance194 (208)
Total income tax expense$25 $
Components of Deferred Tax Assets and Liabilities Components of the Company’s deferred tax assets and liabilities at December 31, 2020 and 2019 are as follows:
20202019
Deferred tax assets:
Net operating loss and tax credit carryforwards
$37,899 $37,440 
Stock based compensation
648 502 
Investment in affiliates
264 482 
Deferred Revenue - Advance payment
— 64 
Other14 213 
Depreciation and amortization
37 — 
38,862 38,701 
Less - valuation allowance
(38,780)(38,601)
Net deferred tax assets
82 100 
Deferred tax liabilities:
Depreciation and amortization
— (55)
Goodwill amortization
(103)(56)
Net deferred tax liabilities
(103)(111)
Net deferred tax assets (liabilities)
$(21)$(11)
Reconciliation of Statutory and Effective Tax Rate After Adjustments for Non-Includable Partnership Income Arising from Non-Controlling Interest
A reconciliation of the statutory rate and the effective tax rate after adjustments for non-includable partnership income arising from non-controlling interest follows:
20202019
Federal statutory rate(21.00 %)(21.00 %)
State income taxes - net of federal benefit(4.93 %)(4.74 %)
Permanent differences22.77 %(0.44 %)
Return to provision adjustments(0.81)%0.42 %
Change in valuation allowance(8.48)%25.47 %
Current state income tax— %— %
Change in enacted state rates13.53 %— %
Other, net(1.53)%— %
Effective tax rate(0.45 %)(0.29 %)