XML 90 R13.htm IDEA: XBRL DOCUMENT v2.4.0.6
Costs incurred and estimated earnings net of billings on uncompleted contracts
 12 Months Ended
Mar. 31, 2013
Contractors [Abstract]  
Costs incurred and estimated earnings net of billings on uncompleted contracts
Costs incurred and estimated earnings net of billings on uncompleted contracts
 
 
March 31, 2013

 
March 31, 2012

Costs incurred and estimated earnings on uncompleted contracts
 
$
512,339

 
$
587,220

Less billings to date
 
(463,241
)
 
(509,511
)
 
 
$
49,098

 
$
77,709


Costs incurred and estimated earnings net of billings on uncompleted contracts is presented in the Consolidated Balance Sheets under the following captions:
 
 
March 31, 2013

 
March 31, 2012

Unbilled revenue
 
$
56,183

 
$
86,859

Billings in excess of costs incurred and estimated earnings on uncompleted contracts
 
(7,085
)
 
(7,514
)
 
 
$
49,098

 
$
79,345


 
Unbilled revenue related to non-construction activities amounted to $nil (March 31, 2012– $1,636).
An amount of $16,139 (March 31, 2012 – $18,302) is recognized within unbilled revenue relating to a single long-term customer contract, whereby the normal operating cycle for this project is greater than one year. As described in note 2(b) the estimated balances within unbilled revenue are subject to uncertainty concerning ultimate realization.