DEBT - Terms of the Term Loans (Details) - First Internet Bank of Indiana - USD ($) $ in Thousands		1 Months Ended
	Jan. 01, 2022	Apr. 30, 2021
Term Loan 1 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 3,980
Annual Interest Rate (as a percent)		5.20%
Monthly Payment Amount		$ 36
Term Loan 2 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 3,571
Annual Interest Rate (as a percent)		5.06%
Monthly Payment Amount		$ 78
Term Loan 3 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 1,076
Annual Interest Rate (as a percent)		5.20%
Monthly Payment Amount		$ 32
Term Loan 4
DEBT
Monthly Payment Amount		20
Term Loan 4 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 1,001
Annual Interest Rate (as a percent)		4.63%
Term Loan 5 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 810
Annual Interest Rate (as a percent)		4.00%
Monthly Payment Amount		$ 17
Term Loan 6 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 2,865
Annual Interest Rate (as a percent)		4.25%
Monthly Payment Amount		$ 56
Term Loan 7 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 1,263
Annual Interest Rate (as a percent)		4.00%
Monthly Payment Amount		$ 28
Term Loan 8
DEBT
Monthly Payment Amount		12
Term Loan 8 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 1,853
Annual Interest Rate (as a percent)		4.00%
Term Loan 9 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 10,000
Annual Interest Rate (as a percent)		3.85%
Monthly Payment Amount		$ 184
Term Loan 10 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 5,000
Annual Interest Rate (as a percent)		3.85%
Monthly Payment Amount		$ 92
Term Loan 11 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 3,622
Annual Interest Rate (as a percent)		3.99%
Monthly Payment Amount		$ 33
Term Loan 12 | Credit Agreement
DEBT
Principal Amount as of date of Credit Agreement		$ 4,832
Annual Interest Rate (as a percent)		3.85%
Monthly Payment Amount		$ 10
Term Loan 12 | Credit Agreement | Forecast
DEBT
Monthly Payment Amount	$ 29