XML 54 R40.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Investments in Marketable Securities Available-for-Sale (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract] |
Available-for-sale Securities [Table Text Block] | Following is a summary of marketable securities as of December 31, 2015 and 2016:
|  | December 31, 2015 |
|  |  |  | Gross |  | Gross |  | Aggregate |
|  | Aggregate |  | Unrealized |  | Unrealized |  | Market |
|  | Cost |  | Gains |  | Losses |  | Value |
|  | (in thousands) |
Time deposit with original maturities more than three months |  | $ | 5,546 |  |  | 2 |  |  | (120) |  |  | 5,428 |
Money market fund |  |  | 13,244 |  |  | 18 |  |  | (179) |  |  | 13,083 |
Total |  | $ | 18,790 |  |  | 20 |  |  | (299) |  |  | 18,511 |
|  | December 31, 2016 |
|  |  |  | Gross |  | Gross |  | Aggregate |
|  | Aggregate |  | Unrealized |  | Unrealized |  | Market |
|  | Cost |  | Gains |  | Losses |  | Value |
|  | (in thousands) |
Time deposit with original maturities more than three months |  | $ | 5,539 |  |  | - |  |  | (399) |  |  | 5,140 |
Money market fund |  |  | 4,968 |  |  | 49 |  |  | - |  |  | 5,017 |
Total |  | $ | 10,507 |  |  | 49 |  |  | (399) |  |  | 10,157 |
Schedule Of Information On Sales Of Available For Sale Marketable Securities [Table Text Block] | Information on sales of available for sale marketable securities for the years ended December 31, 2014, 2015 and 2016 is summarized below.
|  | Proceeds |  | Gross |  | Gross |
Period |  | from sales |  | realized gains |  | realized losses |
|  |  |  |  | (in thousands) |  |  |  |
Year 2014 |  | $ | 22,021 |  |  | 15 |  |  | (46) |
Year 2015 |  | $ | 46,720 |  |  | 261 |  |  | (38) |
Year 2016 |  | $ | 38,532 |  |  | 137 |  |  | (127) |

X
- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27198-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration