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Bank Debt (Tables)
 12 Months Ended
Dec. 31, 2015
Bank Debt  
Schedule of short-term borrowing activities (excluding letters of credit)
AWR’s short-term borrowing activities (excluding letters of credit) for the last three years were as follows:
 
 
December 31,
(in thousands, except percent)
 
2015
 
2014
 
2013
Balance Outstanding at December 31,
 
$
28,000

 
$
—

 
$
—

Interest Rate at December 31,
 
1.09
%
 
0.82
%
 
0.82
%
Average Amount Outstanding
 
$
4,112

 
$
6,181

 
$
—

Weighted Average Annual Interest Rate
 
0.92
%
 
0.81
%
 
1.02
%
Maximum Amount Outstanding
 
$
37,000

 
$
24,000

 
$
—