Aircraft Support Parts, net
 12 Months Ended
Dec. 31, 2014
Inventory Disclosure [Abstract]  
Aircraft Support Parts, net
Aircraft Support Parts, net
Aircraft support parts, net consists of aircraft parts and work-in-process which are valued at the lower of cost or market utilizing the first-in first-out method. Costs capitalized in aircraft support parts include materials, labor, and operating overhead. Work-in-process consists of remanufactured aircraft in various stages of production and in-process aircraft support parts. Upon completion of an aircraft remanufacture, based on the demand for the Company’s services, the Company may transfer an aircraft into its fleet. As of December 31, 2014 and December 31, 2013, there were one and zero aircraft being remanufactured, respectively.

Aircraft support parts consisted of the following (in thousands):
 
 
December 31, 2014
 
December 31, 2013
Aircraft parts
$
124,629

 
$
115,400

Work-in-process
18,604

 
17,296

Less: Excess and obsolete reserve
(5,640
)
 
(6,000
)

$
137,593

 
$
126,696



Following are the changes in the excess and obsolete reserve during the years ended (in thousands):


Year Ended 
 December 31, 2014
 
Year Ended 
 December 31, 2013
 
Year Ended 
 December 31, 2012
Balance at beginning of period
$
(6,000
)
 
$
(6,060
)
 
$
(5,050
)
Increase in reserves
(117
)
 
(585
)
 
(1,662
)
Amounts written off
477

 
645

 
652

Balance at end of period
$
(5,640
)
 
$
(6,000
)
 
$
(6,060
)