Entity information:
14. Income Taxes

For financial reporting purposes, income before income taxes includes the following components:

 
Year Ended December 31
 
 
2017
 
2016
 
2015
 
United States
 
$
55,980
  
$
87,326
  
$
57,846
 
Foreign
  
1,237
   
(231
)
  
(5,873
)
Income before income taxes
 
$
57,217
  
$
87,095
  
$
51,973
 
 
The provision for income taxes consists of the following:

  
Year Ended December 31
 
  
2017
  
2016
  
2015
 
Current provision:
         
Federal
 
$
16,178
  
$
30,623
  
$
19,758
 
State
  
2,866
   
4,098
   
2,553
 
Foreign
  
874
   
907
   
255
 
Total current provision
  
19,918
   
35,628
   
22,566
 
Deferred provision (benefit):
            
Federal
  
107
   
(2,653
)
  
(1,183
)
State
  
(455
)
  
(1,213
)
  
(275
)
Foreign
  
57
   
345
   
(1,101
)
Total deferred benefit
  
(291
)
  
(3,521
)
  
(2,559
)
Total provision (benefit):
            
Federal
  
16,285
   
27,970
   
18,575
 
State
  
2,411
   
2,885
   
2,278
 
Foreign
  
931
   
1,252
   
(846
)
Total income tax provision
 
$
19,627
  
$
32,107
  
$
20,007
 

The Company's income tax provision is computed based on the domestic and foreign federal statutory rates and the average state statutory rates, net of related federal benefit.

The provision for income taxes differs from the amount computed by applying the statutory federal income tax rate to income before income taxes. A reconciliation of the provision for income taxes at the statutory federal income tax rate to the amount provided is as follows:

  
Year Ended December 31
 
  
2017
  
2016
  
2015
 
Tax at the statutory federal income tax rate
 
$
20,026
  
$
30,483
  
$
18,191
 
Qualified production activity deduction
  
(1,661
)
  
(1,641
)
  
(1,174
)
State income tax, net of federal income tax
  
1,520
   
1,876
   
1,386
 
Other permanent differences
  
551
   
673
   
393
 
Research and development tax credits
  
(855
)
  
(785
)
  
(291
)
Valuation allowance impact
  
1,585
   
1,638
   
2,036
 
U.S. Tax Reform impact
  
(1,056
)
  
--
   
--
 
Other items
  
(483
)
  
(137
)
  
(534
)
Total income tax provision
 
$
19,627
  
$
32,107
  
$
20,007
 

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes.
 
Significant components of the Company's deferred tax assets and liabilities are as follows:

  
December 31
 
  
2017
  
2016
 
Deferred tax assets:
      
Inventory reserves
 
$
4,287
  
$
8,507
 
Warranty reserves
  
3,560
   
4,527
 
Bad debt reserves
  
299
   
456
 
State tax loss carryforwards
  
2,710
   
3,403
 
Accrued vacation
  
1,712
   
2,351
 
SERP
  
367
   
299
 
Deferred compensation
  
1,293
   
2,124
 
Restricted stock units
  
1,664
   
1,845
 
Pension and post-employment benefits
  
1,448
   
2,530
 
Foreign net operating losses
  
6,310
   
5,461
 
Other
  
2,478
   
2,516
 
Valuation allowances
  
(8,318
)
  
(8,280
)
Total deferred tax assets
  
17,810
   
25,739
 
Deferred tax liabilities:
        
Property and equipment
  
14,562
   
20,167
 
Intangibles
  
769
   
1,244
 
Goodwill
  
654
   
1,605
 
Pension
  
758
   
1,205
 
Outside basis differences
  
--
   
511
 
Total deferred tax liabilities
  
16,743
   
24,732
 
Total net deferred assets
 
$
1,067
  
$
1,007
 

As of December 31, 2017, the Company has state net operating loss carryforwards of $17,579 and foreign net operating loss carryforwards of approximately $19,876, which will be available to offset future taxable income. If not used, these carryforwards will expire between 2018 and 2030. A significant portion of the valuation allowance for deferred tax assets relates to the future utilization of state and foreign net operating loss and state tax credit carryforwards. Future utilization of these net operating loss and state tax credit carryforwards is evaluated by the Company on a periodic basis and the valuation allowance is adjusted accordingly. In 2017, the valuation allowance on these carryforwards was increased by $7 due to the uncertainty about whether certain entities will realize their state and foreign net operating loss carryforwards. The Company has also determined that the recovery of certain other deferred tax assets is uncertain. The valuation allowance for these deferred tax assets was increased by $31 during 2017.

The following table represents a roll forward of the deferred tax asset valuation allowance for the years ended December 31, 2017, 2016 and 2015:

  
Year Ended December 31
 
  
2017
  
2016
  
2015
 
Allowance balance, beginning of year
 
$
8,280
  
$
8,065
  
$
6,029
 
Provision
  
1,585
   
1,639
   
2,036
 
Write-offs
  
(1,862
)
  
(289
)
  
--
 
Other
  
315
   
(1,135
)
  
--
 
Allowance balance, end of year
 
$
8,318
  
$
8,280
  
$
8,065
 
 
Undistributed earnings of the Company's Canadian subsidiary, Breaker Technology Ltd. ("BTL") and South African subsidiary, Osborn Engineered Products SA, (PTY), Ltd. ("Osborn") are considered to be indefinitely reinvested; accordingly, no provision for U.S. federal and state income taxes has been provided thereon. As of December 31, 2017, the cumulative amounts of undistributed GAAP earnings for BTL and Osborn are $4,026 and $28,249, respectively. A portion of these amounts may be subject to taxation under the one-time transition tax included in the Tax Cuts and Jobs Act of 2017. Based upon the provisions in the Tax Cuts and Jobs Act of 2017, any future qualified dividends out of these amounts will not be subject to U.S. income taxes. However, upon any future inclusion as Subpart F income or capital gains, the Company would be subject to additional U.S. income taxes (subject to an adjustment for foreign tax credits). Upon any repatriation, withholding taxes due to the foreign jurisdictions may have to be paid. At this time, it is not practicable to determine the amount of the unrecognized deferred tax liability for temporary differences related to investments in foreign subsidiaries.

The Company files income tax returns in the U.S. federal jurisdiction, and in various state and foreign jurisdictions. The Company is no longer subject to U.S. federal income tax examinations by authorities for years prior to 2014. With few exceptions, the Company is no longer subject to state and local or non-U.S. income tax examinations by authorities for years prior to 2012.

The Company has a liability for unrecognized tax benefits of $365 and $238 (excluding accrued interest and penalties) as of December 31, 2017 and 2016, respectively. The Company recognizes interest and penalties accrued related to unrecognized tax benefits in tax expense. The Company recognized tax benefits of $22 and $16 in 2017 and 2016, respectively, for penalties and interest related to amounts that were settled for less than previously accrued. The net total amount of unrecognized tax benefits that, if recognized, would affect the Company's effective tax rate is $370 and $238 at December 31, 2017 and 2016, respectively. The Company does not expect a significant increase or decrease to the total amount of unrecognized tax benefits within the next twelve months.

A reconciliation of the beginning and ending unrecognized tax benefits excluding interest and penalties is as follows:

  
Year Ended December 31
 
  
2017
  
2016
  
2015
 
Balance, beginning of year
 
$
238
  
$
603
  
$
2,585
 
Additions for tax positions related to the current year
  
127
   
73
   
206
 
Additions for tax positions related to prior years
  
--
   
162
   
549
 
Reductions due to lapse of statutes of limitations
  
--
   
(16
)
  
(162
)
Decreases related to settlements with tax authorities
  
--
   
(584
)
  
(2,575
)
Balance, end of year
 
$
365
  
$
238
  
$
603
 

The December 31, 2017 balance of unrecognized tax benefits includes no tax positions for which the ultimate deductibility is highly certain but the timing of such deductibility is uncertain. Accordingly, there is no impact to the deferred tax accounting for certain tax benefits.

On December 22, 2017, the Tax Cuts and Jobs Act of 2017 (the "Tax Act") was signed into law making significant changes to the Internal Revenue Code. Changes include, but are not limited to, a federal corporate tax rate decrease from 35% to 21% for tax years beginning after December 31, 2017, the transition of U.S international taxation from a worldwide tax system to a territorial system and a one-time transition tax on the mandatory deemed repatriation of foreign earnings. The Company's fourth quarter 2017 provision for income taxes was reduced by $1,056, (comprised of a $1,548 reduction in income tax expense recorded in connection with the remeasurement of deferred tax assets and liabilities and $492 of additional income tax expense recorded in connection with the transition tax on the mandatory deemed repatriation of foreign earnings) due to applying the provisions of the Tax Act.
 
On December 22, 2017, Staff Accounting Bulletin No. 118 ("SAB 118") was issued to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Tax Act. In accordance with SAB 118, the Company determined that the $492 additional 2017 income tax expense is a provisional amount and constitutes a reasonable estimate at December 31, 2017, based upon the best information currently available. The ultimate impact may differ from the provisional amount, possibly materially, due to, among other things, additional analysis, changes in interpretations and assumptions the Company has made, additional regulatory guidance that may be issued and actions the Company may take as a result of the Tax Act. Any subsequent adjustment to the amount will be recorded to current income tax expense when the analysis is complete, which is expected in 2018 shortly after the filing of the Company's 2017 U.S. income tax return.
 
While the Tax Act provides for a territorial tax system, beginning in 2018, it includes two new U.S. tax base erosion provisions, the global intangible low-taxed income ("GILTI") provisions and the base-erosion and anti-abuse tax ("BEAT") provisions.

The GILTI provisions require the Company to include, in its U.S. income tax return, foreign subsidiary earnings in excess of an allowable return on the foreign subsidiary's tangible assets. The Company has elected to account for GILTI tax in the period in which it is incurred, and therefore, has not provided any deferred tax impacts of GILTI in its consolidated financial statements for the year ended December 31, 2017.
 
The BEAT provisions in the Tax Act eliminates the deduction of certain base-erosion payments made to related foreign corporations, and impose a minimum tax, if greater than regular tax. The Company does not expect it will be subject to this tax, and therefore, has not included any tax impacts of BEAT in its consolidated financial statements for the year ended December 31, 2017.

The changes to existing U.S. tax laws as a result of the Tax Act, which we believe have the most significant impact on the Company's federal income taxes are as follows:

Reduction of the U.S. Corporate Income Tax Rate: The Company measures deferred tax assets and liabilities using enacted tax rates that will apply in the years in which the temporary differences are expected to be recovered or paid. Accordingly, the Company recognized a deferred tax benefit and related increase in deferred tax assets of $1,548 in its 2017 consolidated financial statements due to the remeasurement necessitated by the Tax Act's provision reducing the reduction in the U.S. corporate income tax rate from 35% to 21%. This benefit is attributable to the Company being in a net deferred tax liability position when considering only U.S. federal deferred items. The Company has significant deferred tax assets related to foreign jurisdictions and U.S. state income taxes.

Transition Tax on Foreign Earnings: The Company recognized a provisional income tax expense of $492 for the year ended December 31, 2017 related to the one-time transition tax on certain foreign earnings. The determination of the transition tax requires further analysis regarding the amount and composition of the Company's historical foreign earnings and foreign taxes, which is expected to be completed in 2018.

Repeal of Domestic Production Activities Deduction: While not effective until 2018, the Tax Act repeals the Domestic Production Activities Deduction ("DPAD") previously provided under IRC §199. The DPAD benefit has historically been very material to the Company's federal income taxes. The DPAD benefits included in the effective tax rate reconciliations for 2017, 2016 and 2015 were $1,661, $1,641 and $1,174, respectively.