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Note 3 - Option Agreement (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Mar. 20, 2012
Note 3 - Option Agreement (Details) [Line Items] |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  | 5.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  | 96.00%us-gaap_MinorityInterestOwnershipPercentageByParent
Increase in Shares Covered by Option |  |  |  | 10.00%ins_IncreaseInSharesCoveredByOption
Open Option Contracts Written, Exercise Price |  |  |  | 1,000,000 us-gaap_OpenOptionContractsWrittenExercisePrice
Marketing Expense | $ 1,408,000 us-gaap_MarketingExpense | $ 1,632,000 us-gaap_MarketingExpense |  |
Other Liabilities, Noncurrent | 230,000 us-gaap_OtherLiabilitiesNoncurrent | 185,000 us-gaap_OtherLiabilitiesNoncurrent |  |
Option Expense [Member] |  |  |  |
Note 3 - Option Agreement (Details) [Line Items] |  |  |  |
Marketing Expense |  |  | 18,000 us-gaap_MarketingExpense / ins_OptionAgreementAxis = ins_OptionExpenseMember |
Other Liabilities, Noncurrent | $ 18,000 us-gaap_OtherLiabilitiesNoncurrent / ins_OptionAgreementAxis = ins_OptionExpenseMember | $ 18,000 us-gaap_OtherLiabilitiesNoncurrent / ins_OptionAgreementAxis = ins_OptionExpenseMember |  |

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- Definition Increase in number of shares covered by the option in terms of percentage. + References No definition available. + Details
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Balance Type: | na
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- Details
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- Definition Expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services. Costs of public relations and corporate promotions are typically considered to be marketing costs. + 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 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
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- Definition The exercise price of the open option contracts written on the investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B.Column C) -URI http://asc.fasb.org/extlink&oid=34726532&loc=d3e611197-123010 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12B -Paragraph Column C -Article 12 + Details
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- Definition Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 24 -Article 5 + Details
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- Details
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