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Summary of Changes in Fair Value of Earnout Liabilities (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair value at December 31, 2020	$ 2,513,950		$ 2,444,000
Fair value at December 31, 2020	(954,733)		(954,733)
Fair value at December 31, 2020	7,261		77,211
Fair value at December 31, 2020	$ 1,566,478		$ 1,566,478

X

- Definition

Adjustment to fair value of contingent consideration - earnout.

+ References

No definition available.

+ Details

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Namespace Prefix:	INLX_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Earnout liability.

+ References

No definition available.

+ Details

Name:	INLX_EarnoutLiability
Namespace Prefix:	INLX_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Payments to earnout liability.

+ References

No definition available.

+ Details

Name:	INLX_PaymentsToEarnoutLiability
Namespace Prefix:	INLX_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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