XML 96 R29.htm IDEA: XBRL DOCUMENT
v3.24.1

Stock-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Schedule of common shares reserved for future issuance |
Schedule of common shares reserved for future issuance |  |  |
(In thousands) |  | Common Shares Reserved for Future Issuance |
2021 Plan |  |  | 113 |
2015 Plan |  |  | 27 |
2005 Plan |  |  | 4 |
Total |  |  | 144 |
Schedule of unvested RSAs |
Schedule of unvested RSAs |  |  |  |  |  |
|  | Unvested Restricted Stock Awards |
|  | Number of Shares (in thousands) |  |  | Weighted-Average Grant-Date Fair Value |
Unvested as of December 31, 2022 |  |  | 8 |  |  | $ | 57.60 |
Granted |  |  | 11 |  |  |  | 26.20 |
Vested |  |  | (8 | ) |  |  | 56.60 |
Forfeited/canceled |  |  | – |  |  |  | – |
Unvested as of December 31, 2023 |  |  | 11 |  |  | $ | 28.20 |
Schedule of stock option activity |
Schedule of stock option activity |  |  |  |  |  |  |  |  |  |  |  |
|  | 2023 |  |  | 2022 |
|  | Number of Options (in thousands) |  |  | Weighted Average Exercise Price |  |  | Number of Options (in thousands) |  |  | Weighted Average Exercise Price |
Outstanding at beginning of year |  |  | 33 |  |  | $ | 104.40 |  |  |  | 31 |  |  | $ | 129.40 |
Granted |  |  | 31 |  |  |  | 24.80 |  |  |  | 17 |  |  |  | 72.60 |
Exercised |  |  | (4 | ) |  |  | 9.60 |  |  |  | (5 | ) |  |  | 13.40 |
Forfeited |  |  | (8 | ) |  |  | 86.40 |  |  |  | (8 | ) |  |  | 163.20 |
Expired |  |  | (2 | ) |  |  | 156.00 |  |  |  | (2 | ) |  |  | 269.40 |
Outstanding at end of year |  |  | 50 |  |  | $ | 62.40 |  |  |  | 33 |  |  | $ | 104.40 |
Options exercisable at end of year |  |  | 23 |  |  | $ | 85.60 |  |  |  | 14 |  |  | $ | 82.60 |
Schedule of stock options by exercise price |
Schedule of stock options by exercise price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  | Options Outstanding |  |  |  | Options Exercisable |
Range of Exercise Prices |  |  | Outstanding at 12/31/23 (in thousands) |  |  |  | Weighted Average Remaining Contractual Life (years) |  |  |  | Weighted Average Exercise Price |  |  |  | Exercisable at 12/31/23 (in thousands) |  |  |  | Weighted Average Exercise Price |
$7.00 - $23.00 |  |  | 1 |  |  |  | 3.87 |  |  | $ | 12.60 |  |  |  | 1 |  |  | $ | 13.20 |
$24.20 - $36.40 |  |  | 31 |  |  |  | 8.12 |  |  | $ | 25.80 |  |  |  | 8 |  |  | $ | 29.60 |
$41.00 - $61.60 |  |  | 1 |  |  |  | 0.99 |  |  | $ | 41.20 |  |  |  | 1 |  |  | $ | 41.20 |
$63.80 - $95.80 |  |  | 12 |  |  |  | 8.03 |  |  | $ | 75.20 |  |  |  | 9 |  |  | $ | 76.40 |
$174.40 - $261.60 |  |  | 4 |  |  |  | 9.96 |  |  | $ | 240.60 |  |  |  | 3 |  |  | $ | 235.80 |
$470.40 - $715.60 |  |  | 1 |  |  |  | 7.17 |  |  | $ | 470.40 |  |  |  | 1 |  |  | $ | 470.40 |
$7.00 - $715.60 (all) |  |  | 50 |  |  |  | 7.81 |  |  | $ | 62.40 |  |  |  | 23 |  |  | $ | 85.60 |
Schedule of outstanding stock options |
Schedule of outstanding stock options |  |  |  |  |  |
|  | Outstanding Stock Options (Expected to Vest) |  |  | Options that are Exercisable |
As of December 31, 2023 |  |  |  |  |  |  |  |
Number of outstanding options (in thousands) |  |  | 50 |  |  |  | 23 |
Weighted average remaining contractual life |  |  | 7.81 years |  |  |  | 6.23 years |
Weighted average exercise price per share |  | $ | 62.40 |  |  | $ | 85.60 |
Intrinsic value (in thousands) |  | $ | – |  |  | $ | – |
Schedule of assumptions for stock based compensation |
Schedule of assumptions for stock based compensation |  |  |  |  |  |
|  | 2023 |  |  | 2022 |
Weighted average grant date fair value |  | $ | 21.60 |  |  | $ | 66.40 |
Weighted average assumptions used: |  |  |  |  |  |  |  |
Expected dividend yield |  |  | 0.00% |  |  |  | 0.00% |
Risk-free interest rate |  |  | 3.68% |  |  |  | 2.17% |
Expected volatility |  |  | 114.17% |  |  |  | 129.54% |
Expected life (in years) |  |  | 6.44 |  |  |  | 6.76 |

X
- References No definition available. + Details
Name: | intz_ScheduleOfCommonSharesReservedForFutureIssuanceTableTextBlock
Namespace Prefix: | intz_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (c) -Paragraph 2 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_NonvestedRestrictedStockSharesActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding and exercisable options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAndExercisableTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration