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Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2017
Income Tax Disclosure [Abstract]  
Schedule of Federal and State Income Tax Provision

The federal and state income tax provision consisted of the following:

 

Year ended December 31,  2017   2016   2015 
   Current   Deferred   Current   Deferred   Current   Deferred 
Federal  $20,232   $1,865   $31,393   $10,181   $31,382   $(2,774)
State   3,987    (580)   5,678    1,197    5,849    (483)
   $24,219   $1,285   $37,071   $11,378   $37,231   $(3,257)
Schedule of Effective Income Tax Rate Reconciliation

The effective income tax rate varied from the statutory federal income tax rate as follows:

 

Year ended December 31,  2017   2016   2015 
Statutory federal income tax rate   35.0%   35.0%   35.0%
State income taxes, net of federal tax benefit   2.9    3.3    3.6 
Domestic production activities deduction   (2.6)   (2.3)   (3.2)
Impact of Accounting Standard Update 2016-09   (0.9)   —    — 
Impact of Tax Cuts and Jobs Act on deferred taxes   (0.7)   —    — 
Other items   (0.9)   (0.4)   — 
Effective income tax rate   32.8%   35.6%   35.4%
Schedule of Deferred Tax Assets and Liabilities

Significant components of the Company’s deferred tax assets and liabilities are as follows:

 

December 31,  2017   2016 
Deferred tax assets          
Product Liability  $201   $655 
Employee compensation and benefits   2,336    3,627 
Allowances for doubtful accounts and discounts   1,769    3,813 
Inventories   758    981 
Stock-based compensation   1,406    2,527 
Other   1,326    1,533 
Total deferred tax assets   7,796    13,136 
Deferred tax liabilities:          
Depreciation   8,956    12,457 
Other   242    345 
Total deferred tax liabilities   9,198    12,802 
Net deferred tax (liabilities) assets  $(1,402)  $334