XML 51 R19.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2013
Summary of Significant Accounting Policies |
Schedule Of Allowance For Doubtful Accounts |
December 31 |  | 2013 |  | 2012 |
Beginning balance |  | $ | 22,000 |  | $ | 12,000 |
Bad debt provision |  | 101,000 |  | 11,000 |
Accounts written-off |  | (106,000 | ) | (1,000 | )
Ending balance |  | $ | 17,000 |  | $ | 22,000 |
Schedule Of Inventories |
December 31 |  | 2013 |  | 2012 |
Raw materials |  | $ | 71,000 |  | $ | 72,000 |
Work-in-process |  | 12,000 |  | 3,000 |
Finished goods |  | 224,000 |  | 235,000 |
|  | $ | 307,000 |  | $ | 310,000 |
Schedule Of Estimated Useful Lives |
Production tooling, machinery and equipment |  | 1 - 6 years |
Office furniture and fixtures |  | 3 years |
Computer equipment and software |  | 3 years |
Web development |  | 3 years |
Schedule Of Weighted Average Common Shares Outstanding |
Year ended December 31 |  | 2013 |  | 2012 |
Denominator for basic net income (loss) per share - weighted average shares |  | 13,324,000 |  | 13,605,000 |
Effect of dilutive securities: |  |  |  |  |
Stock options |  | 98,000 |  | — |
Denominator for diluted net income (loss) per share - weighted average shares |  | 13,422,000 |  | 13,605,000 |

X
- Definition Tabular disclosure of the estimated useful lives used to calculate depreciation of property, plant and equipment. + References No definition available. + Details
Name: | isig_PropertyPlantAndEquipmentEstimatedUsefulLivesTableTextBlock
Namespace Prefix: | isig_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524 + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
Name: | us-gaap_ScheduleOfInventoryCurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration