Date of lease commenced.

No definition available.

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- Definition

Lease extension date.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Area of land held.

+ References

No definition available.

+ Details

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Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of lessor's operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=121576215&loc=SL77919359-209981

+ Details

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971

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-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Cash payments to lessor's for use of assets under operating leases.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
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+ Details

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

- Definition

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Balance Type:
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- Details

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Balance Type:
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- Details

Name:	srt_StatementGeographicalAxis=INLX_MadisonHeightsMember
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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_VehiclesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Data Type:	na
Balance Type:
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- Details

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Commitments and Contingencies (Details Narrative)		12 Months Ended
Commitments and Contingencies (Details Narrative)	Jan. 02, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jan. 01, 2010 ft²
Area of rental square feet of office space \| ft²				6,000
Lease commenced date		Jan. 01, 2010
Lease extension date		Aug. 09, 2016
Lease expiration date		Dec. 31, 2021
Operating lease costs		$ 743,373	$ 51,254
Short term lease costs		$ 71,411
Graphic Sciences, Inc. [Member] \| Traverse City [Member]
Lease extension date	Jan. 31, 2024
Monthly rental payment	$ 4,500
Graphic Sciences, Inc. [Member] \| Madison Heights [Member]
Monthly rental payment	$ 12,500
Graphic Sciences, Inc. [Member] \| Vehicles [Member]
Lease extension date	Oct. 31, 2024
Monthly rental payment	$ 2,618
Graphic Sciences, Inc. [Member] \| Madison Heights [Member]
Lease extension date	Aug. 31, 2026
Lease description	Our subsidiary, Graphic Sciences, uses 36,000 square feet of leased space in Madison Heights as its main facility. Graphic Sciences uses about 20,000 square feet for its records storage services, with the remainder of the space used for production, sales, and administration.
Monthly rental payment	$ 41,508
Graphic Sciences, Inc. [Member] \| Madison Heights [Member] \| Maximum [Member]
Monthly rental payment	$ 45,828
Graphic Sciences, Inc. [Member] \| Highland Park, MI, and a Satellite Office [Member]
Lease extension date	Sep. 30, 2021
Lease description	Graphic Sciences also leases and uses a separate 20,000 square foot building for document storage in Highland Park, MI, a satellite office in Traverse City, MI for production
Monthly rental payment	$ 11,250