| Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|
|
|
Unrealized Losses on Auction-Rate Securities
|
|
|
Unrealized Gains on Other Available-for-Sale Securities
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|
|
Foreign Currency Translation Adjustments
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|
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Total
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|
|
Balance as of January 1, 2012
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|
$
|
(630
|
)
|
|
$
|
3
|
|
|
$
|
4,220
|
|
|
$
|
3,593
|
|
|
Other comprehensive income before reclassifications
|
|
|
140
|
|
|
|
20
|
|
|
|
408
|
|
|
|
568
|
|
|
Amounts reclassified from accumulated other comprehensive income
|
|
|
-
|
|
|
|
14
|
|
|
|
-
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|
|
|
14
|
|
|
Net current period other comprehensive income
|
|
|
140
|
|
|
|
34
|
|
|
|
408
|
|
|
|
582
|
|
|
Balance as of December 31, 2012
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|
|
(490
|
)
|
|
|
37
|
|
|
|
4,628
|
|
|
|
4,175
|
|
|
Other comprehensive income (loss) before reclassifications
|
|
|
130
|
|
|
|
(29
|
)
|
|
|
1,988
|
|
|
|
2,089
|
|
|
Amounts reclassified from accumulated other comprehensive income
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|
|
-
|
|
|
|
(4
|
)
|
|
|
-
|
|
|
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(4
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)
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Net current period other comprehensive income (loss)
|
|
|
130
|
|
|
|
(33
|
)
|
|
|
1,988
|
|
|
|
2,085
|
|
|
Balance as of December 31, 2013
|
|
$
|
(360
|
)
|
|
$
|
4
|
|
|
$
|
6,616
|
|
|
$
|
6,260
|
|
|