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Accounts payable and accrued expenses
6 Months Ended
Jul. 04, 2015
Payables and Accruals [Abstract]  
Accounts payable and accrued expenses
Accounts payable and accrued expenses

Accounts payable and accrued expenses are as follows:
 
July 4,
2015
 
December 31,
2014
Outstanding checks in excess of cash
$
21,820

 
16,083

Accounts payable, trade
727,676

 
622,360

Accrued expenses
323,170

 
269,668

Product warranties
39,474

 
29,350

Accrued interest
28,914

 
28,365

Accrued compensation and benefits
162,433

 
138,683

Total accounts payable and accrued expenses
$
1,303,487

 
1,104,509