Description of Business and Summary of Significant Accounting Policies And Going Concern - Narrative (Details)							3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 23, 2023 USD ($) shares	Jun. 12, 2023 USD ($) shares	Jun. 05, 2023 USD ($) shares	Jun. 01, 2023 shares	Apr. 18, 2023 USD ($) shares	Apr. 25, 2019 shares	Jun. 30, 2023 USD ($) shares	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) shares	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) shares	Jul. 06, 2023 shares	Feb. 15, 2023 shares	Sep. 11, 2022 shares	Dec. 31, 2021 USD ($)	Jun. 30, 2020 shares	Jan. 31, 2020 shares	Nov. 09, 2016 shares
Disaggregation of Revenue
Common stock, shares authorized (in shares) | shares							50,000,000		50,000,000		50,000,000
Stock split									0.2
Net loss attributable to T Stamp Inc.							$ 2,170,368	$ 2,922,286	$ 4,717,818	$ 4,614,348
Operating cash outflows									3,581,369	3,858,860
Working capital							1,470,000		1,470,000
Accumulated deficit							$ 44,017,544		44,017,544		$ 39,299,726
Proceeds from common stock, prefunded warrants, and common stock warrants, net of fees									$ 7,464,312	203,439
Number of warrants exercised for issuance of shares (in shares) | shares							4,034,199		4,034,199		1,465,083					6,418
Shares issued upon exercise of warrants (in shares) | shares				1,279,700
Shares issued (in shares) | shares							16,821		16,821		56,513
Common stock, shares issued (in shares) | shares							7,989,065		7,989,065		4,910,815
Cash and cash equivalents							$ 5,035,414	2,827,563	$ 5,035,414	2,827,563	$ 1,254,494				$ 3,475,695
Gross receivables							495,000		495,000
Allowance for credit losses							8,000		8,000
Unbilled receivables							104,043		104,043		109,475
Advertising and marketing expense							$ 56,000	$ 65,000	108,000	$ 124,000
Impaired capitalized internal-use software									$ 17,000
Effective tax rate							0.00%	0.00%	0.00%	0.00%
Unrecognized tax benefits							$ 0		$ 0		$ 0
Securities purchase agreement
Disaggregation of Revenue
Number of shares agreed to issue and sell (in shares) | shares			736,400		563,380
Proceeds from common stock, prefunded warrants, and common stock warrants, net of fees			$ 1,693,720		$ 1,859,154		$ 1,249,590
Number of warrants exercised for issuance of shares (in shares) | shares			543,300		1,009,950
Proceeds from warrant exercises			$ 1,249,047		$ 3,332,835
Shares issued upon exercise of warrants (in shares) | shares			736,400		1,573,330		1,279,700
Proceeds from offering after deducting placement fee and legal expense			$ 2,686,773		$ 4,778,550		$ 2,686,773
Placement fee			205,994		363,439
Legal expense			$ 50,000		$ 50,000
Subsequent Event | Third Restated Certificate
Disaggregation of Revenue
Common stock, shares authorized (in shares) | shares												50,000,000
Top Three Customers | Accounts receivable | Customer Concentration Risk
Disaggregation of Revenue
Concentration risk (as a percent)									92.71%		95.37%
Customer One | Accounts receivable | Customer Concentration Risk
Disaggregation of Revenue
Concentration risk (as a percent)									60.29%		36.90%
Customer Two | Accounts receivable | Customer Concentration Risk
Disaggregation of Revenue
Concentration risk (as a percent)									25.55%		32.69%
Customer Three | Accounts receivable | Customer Concentration Risk
Disaggregation of Revenue
Concentration risk (as a percent)									6.87%		25.78%
Customer | Sales revenue net | Customer Concentration Risk
Disaggregation of Revenue
Concentration risk (as a percent)							90.67%	88.57%	92.73%	97.57%
S And P 500 Bank | Sales revenue net | Customer Concentration Risk
Disaggregation of Revenue
Concentration risk (as a percent)							48.97%	38.14%	44.57%	15.59%
Mastercard | Sales revenue net | Customer Concentration Risk
Disaggregation of Revenue
Concentration risk (as a percent)							31.33%	21.98%	28.21%	9.56%
Triton | Sales revenue net | Customer Concentration Risk
Disaggregation of Revenue
Concentration risk (as a percent)							10.37%		9.73%
FIS | Sales revenue net | Customer Concentration Risk
Disaggregation of Revenue
Concentration risk (as a percent)									10.22%	3.23%
ICE | Sales revenue net | Customer Concentration Risk
Disaggregation of Revenue
Concentration risk (as a percent)								28.45%		69.19%
Bank Time Deposits
Disaggregation of Revenue
Cash and cash equivalents							$ 4,240,000		$ 4,240,000		$ 71,000
Common Class A
Disaggregation of Revenue
Number of warrants exercised for issuance of shares (in shares) | shares							283,914		283,914					390,000			932,111	80,128
Shares issued (in shares) | shares						320,513
Common stock, shares issued (in shares) | shares													206,033
Common stock, shares held (in shares) | shares									16,821
Common Class A | Securities purchase agreement
Disaggregation of Revenue
Number of warrants exercised for issuance of shares (in shares) | shares							1,573,330		1,573,330
Common Class A | Various employees
Disaggregation of Revenue
Number of shares transferred (in shares) | shares						264,000
Pre Funded Warrants
Disaggregation of Revenue
Proceeds from common stock, prefunded warrants, and common stock warrants, net of fees	$ 221	$ 322
Shares issued upon exercise of warrants (in shares) | shares	221,000	322,300