The number of offering periods in a calendar year.

No definition available.

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Namespace Prefix:	iti_
Data Type:	xbrli:integerItemType
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Period Type:	duration

- Definition

The duration of each offering periods.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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Period Type:	duration

- Definition

The purchase price of common stock as a percentage of fair market value as on last trading period.

+ References

No definition available.

+ Details

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Namespace Prefix:	iti_
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Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum amount the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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- Details

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Stock-Based Compensation - Other Stock-Based Compensation Plans (Details)		1 Months Ended				9 Months Ended
	Jan. 01, 2018 USD ($) period	Dec. 31, 2019 USD ($)	Jun. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Other Stock-Based Compensation Plans
Stock-based compensation expense						$ 2,049,000	$ 1,555,000
ESPP
Other Stock-Based Compensation Plans
Purchase price of common stock (as a percent)	95.00%
Number of offering periods \| period	2
Duration of offering period (in months)	6 months
Annual stock value	$ 25,000	$ 42,944	$ 48,439	$ 52,760	$ 35,808
Stock-based compensation expense						$ 0
ESPP \| Minimum
Other Stock-Based Compensation Plans
Employer matching contribution (as a percent)	1.00%
ESPP \| Maximum
Other Stock-Based Compensation Plans
Employer matching contribution (as a percent)	15.00%