Commitments, Contingencies, and Concentrations

12 Months Ended

Dec. 31, 2013

Commitments, Contingencies, and Concentrations [Abstract]

Commitments, Contingencies, and Concentrations

Note 13. Commitments, Contingencies, and Concentrations

We are involved in certain contractual disputes in the ordinary course of business, but do not believe the resolution of any of these existing matters will have a material adverse effect on our financial position, results of operations or cash flows.

Most of our revenue from our Equipment Segment is from sales of Cisco-branded products. The loss of Cisco as our principal supplier could significantly impact this revenue stream.

We have a collective bargaining agreement with the International Brotherhood of Electrical Workers Local 949, which involves approximately 17% of our employees. The current labor agreement expires in 2015.

Operating Lease Commitments

We own most of our major facilities, but lease certain office space, land and equipment under principally non-cancelable operating leases.Rental expense was $2,926,000, $2,214,000 and $1,853,000 for the years ended December 31, 2013, 2012 and 2011. At December 31, 2013, future minimum operating lease obligations are as follows:

(Dollars in thousands)
For fiscal years ending:
2014	$	2,583
2015		2,380
2016		1,577
2017		1,390
2018		809
Thereafter		2,441
Total	$	11,180