XML 23 R6.htm IDEA: XBRL DOCUMENT
v3.20.1

Statements of Stockholders' Equity (Parenthetical) | 12 Months Ended
--- | ---
Dec. 31, 2019 shares
Statement of Stockholders' Equity [Abstract] |
Exercise of stock options, net of cashless exercise of shares | 21,864

X
- Definition Exercise of stock options, net of cashless exercise of shares. + References No definition available. + Details
Name: | IDN_ExerciseOfStockOptionsNetOfCashlessExerciseShares
Namespace Prefix: | IDN_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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