XML 36 R23.htm IDEA: XBRL DOCUMENT v3.3.1.900
Nature of Business and Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]  
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net
Changes to the allowance for doubtful accounts consisted of the following (in thousands):
 
 
Year Ended December 31,
Allowance for Doubtful Accounts:
 
2015
 
2014
 
2013
Balance at beginning of year
 
$
55

 
$
20

 
$
62

Write-offs
 
—

 
(8
)
 
(25
)
Recoveries
 
—

 
—

 
—

Change in provision
 
(31
)
 
43

 
(17
)
Balance at end of year
 
$
24

 
$
55

 
$
20