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Note 14 - Foreign Revenues and Operations (Details) - Foreign Revenues (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Foreign Countries: |  |  |  |
Revenues | $ 14,586 us-gaap_Revenues |  | $ 16,318 us-gaap_Revenues |
UNITED KINGDOM |  |  |  |
Foreign Countries: |  |  |  |
Revenues | 1,301 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_GB |  | 1,284 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_GB |
Pacific Rim [Member] |  |  |  |
Foreign Countries: |  |  |  |
Revenues | 550 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = ins_PacificRimMember | [1] | 598 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = ins_PacificRimMember | [1]
CANADA |  |  |  |
Foreign Countries: |  |  |  |
Revenues | 489 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_CA |  | 496 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_CA |
BRAZIL |  |  |  |
Foreign Countries: |  |  |  |
Revenues | 5 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_BR |  | 59 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_BR |
Other Countries [Member] |  |  |  |
Foreign Countries: |  |  |  |
Revenues | 93 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = ins_OtherCountriesMember |  | 35 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = ins_OtherCountriesMember |
Foreign [Member] |  |  |  |
Foreign Countries: |  |  |  |
Revenues | 2,438 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = ins_ForeignMember |  | 2,472 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = ins_ForeignMember |
UNITED STATES |  |  |  |
Foreign Countries: |  |  |  |
Revenues | $ 12,148 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_US |  | $ 13,846 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_US |
[1] | Includes Australia, New Zealand, Japan and Singapore

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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