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10. Income taxes (Tables)
 12 Months Ended
Dec. 31, 2019
Income Tax Disclosure [Abstract]  
Provision for income taxes

The provision (benefit) for income taxes consists of the following:

 

   For the Years Ended December 31, 
   2019   2018 
Current:        
Federal  $(27)  $(13)
State and local   276    249 
Total current   249    236 
Deferred   533    (461)
Provision (benefit) for income taxes  $782   $(225)
Reconciliation to effective rate for income taxes

A reconciliation of the U.S. federal statutory rate to the effective tax rate used in the provision for income taxes is as follows:

 

   2019   2018 
   Amount   Percentage   Amount   Percentage 
Federal income tax at statutory rate  $259    21.0%   $(695)   21.0% 
State and local tax, net   180    14.5%    (47)   1.4% 
Goodwill impairment   –    0.0%    324    (9.8)% 
Oher permanent differences   14    1.1%    147    (4.4)% 
Section 162m   105    8.5%    –    0.0% 
Stock based compensation   149    12.1%    –    0.0% 
Uncertain tax positions   79    6.4%    –    0.0% 
Change in tax rates   8    0.7%    (37)   1.1% 
Change in tax estimate   (12)   (1.0)%    83    (2.5)% 
Benefit for income taxes  $782    63.3%   $(225)   6.8% 
Schedule of deferred tax assets and liabilities

The tax effects of temporary differences giving rise to deferred income tax assets and liabilities are as follows:

 

   December 31, 
   2019   2018 
Deferred tax liabilities attributable to:          
Accumulated depreciation and amortization  $(2,015)  $(2,062)
Unrealized gains   (465)   – 
Total deferred tax liabilities   (2,480)   (2,062)
Deferred tax assets attributable to:          
Net operating losses   507    595 
Capital loss carry-forward & investment impairment   –    115 
Accrued compensation   89    – 
Incentive compensation   473    448 
Inventory   312    355 
Allowances for doubtful accounts and discounts   115    109 
Deferred revenue   40    – 
Other   22    50 
Total net deferred tax assets   1,558    1,672 
Net deferred tax liabilities  $(922)  $(390)
Schedule of tax attributes related to net operating losses

The following table details the Company's tax attributes related to net operating losses for which it has recorded deferred tax assets.

 

Tax Attributes   Net Attribute Amount    Net Attribute Amount      Expiration Years  
U.S. net operating losses  $1,759   $370      No expiration  
Illinois net operating losses   1,762    132      2030 - 2031  
Other state net operating losses   119    5      2034 - 2038  
        $507         
Reconciliation of amount of unrecognized tax benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:

 

   2019   2018 
Balance at January 1  $63   $181 
Additions based on tax positions of prior years   79    – 
Reduction for tax positions of prior years   –    (118)
Balance at December 31  $142   $63