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Embezzlement (Tables)
12 Months Ended
Dec. 31, 2016
Unusual or Infrequent Item, or Both [Line Items]  
Schedule of Unusual or Infrequent Items, or Both [Table Text Block]
The amounts of the embezzlement by period are as follows:
Year
Amount
2016
$480,000
2015
338,000
2014
213,000
Prior to 2014
558,000
 
$1,589,000
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]

Year
Cost of component revenues
Foreign currency transaction (losses) gains
Other (expense) income, net
2015
$(85,000)
$(253,000)
$(338,000)
2014
(46,000)
(167,000)
(213,000)