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Debt and Leases (Tables)
 12 Months Ended
Dec. 31, 2012
Debt Disclosure [Abstract]  
Components of long-term debt
Long-term debt consists of the following at:
 
December 31,
2012
 
December 31,
2011
Capex loan payable to a bank, interest at a variable rate (1.96% and 2.02% at December 31, 2012 and 2011, respectively) with monthly payments of interest and principal over a seven-year period through May 2016
$
5,857,000

 
$
7,571,000

Mexican loan payable to a bank, interest at a variable rate (1.94% and 1.94% at December 31, 2012 and 2011, respectively) with annual principal and monthly interest payments over a five-year period through January 2014
3,200,000

 
4,800,000

Industrial Development Revenue Bond, interest adjustable weekly (0.30% and 0.37% at December 31, 2012 and 2011, respectively), payable quarterly, principal due in variable quarterly installments through April 2013, secured by a bank letter of credit
420,000

 
1,210,000

Revolving Line of Credit
—

 
—

Mexican Expansion Revolving Loan
—

 
—

Total
9,477,000

 
13,581,000

Less current portion
(3,734,000
)
 
(4,104,000
)
Long-term debt
$
5,743,000

 
$
9,477,000
Maturities of long-term debt
Annual maturities of long-term debt are as follows:
2013
$
3,734,000

2014
3,314,000

2015
1,714,000

2016
715,000

2017
—

Total
$
9,477,000
Future minimum rental payments for operating leases
Future minimum operating lease payments are as follows:
2013
$
256,000

2014
213,000

2015
139,000

2016
139,000

2017
115,000

Total minimum lease payments
$
862,000