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Notes Payable (Details) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Total notes payable $ 1,252,781us-gaap_NotesAndLoansPayable $ 1,300,229us-gaap_NotesAndLoansPayable
Less current portion (744,410)us-gaap_LongTermDebtCurrent (756,614)us-gaap_LongTermDebtCurrent
Long-term portion of notes payable 508,371us-gaap_LongTermDebtNoncurrent 543,615us-gaap_LongTermDebtNoncurrent
Authority Loan No. 1, due September 1, 2015 [Member]    
Debt Instrument [Line Items]    
Authority Loan 576,429us-gaap_OtherLoansPayable
/ us-gaap_LongtermDebtTypeAxis
= inlx_AuthorityLoanNumberOneMember
600,429us-gaap_OtherLoansPayable
/ us-gaap_LongtermDebtTypeAxis
= inlx_AuthorityLoanNumberOneMember
Authority Loan No. 2, due August 1, 2018 [Member]    
Debt Instrument [Line Items]    
Authority Loan 633,006us-gaap_OtherLoansPayable
/ us-gaap_LongtermDebtTypeAxis
= inlx_AuthorityLoanNumberTwoMember
657,006us-gaap_OtherLoansPayable
/ us-gaap_LongtermDebtTypeAxis
= inlx_AuthorityLoanNumberTwoMember
Note payable due December 31, 2015 [Member]    
Debt Instrument [Line Items]    
Total notes payable $ 43,346us-gaap_NotesAndLoansPayable
/ us-gaap_LongtermDebtTypeAxis
= inlx_NotePayableThreeDueDecember312015Member
$ 42,794us-gaap_NotesAndLoansPayable
/ us-gaap_LongtermDebtTypeAxis
= inlx_NotePayableThreeDueDecember312015Member