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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Allowance for Doubtful Accounts (Tables)
 12 Months Ended
Dec. 31, 2015
Allowance for Doubtful Accounts [Table Text Block]

The following table sets forth the activity in the allowance for doubtful accounts for the years ended December 31, 2015, 2014 and 2013 (in thousands):
 
Year Ended December 31,
 
2015
 
2014
 
2013
Allowance for doubtful accounts – beginning of year
$
1,182

 
$
1,444

 
$
1,517

Bad debt (recovery) expense
(23
)
 
(143
)
 
157

Reduction in allowance for doubtful accounts
(516
)
 
(119
)
 
(230
)
Allowance for doubtful accounts – end of year
$
643

 
$
1,182

 
$
1,444