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DEBT - Additional Information (Details) $ in Thousands					12 Months Ended
	Nov. 16, 2020 USD ($) item	Aug. 01, 2020 USD ($)	Apr. 23, 2020 USD ($)	Mar. 27, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020
DEBT ARRANGEMENTS
Interest Paid, Including Capitalized Interest, Operating and Investing Activities					$ 1,039	$ 566
Long-term Debt					25,052	15,087
Minimum | President and Chief Executive Officer [Member]
DEBT ARRANGEMENTS
Life Insurance, Corporate or Bank Owned, Amount					$ 5,000
Credit Arrangements [Member] | Maximum
DEBT ARRANGEMENTS
Minimum Debt Service Coverage Ratio One					1.25
Cash Flow Leverage Ratio					4.25		4.00	4.50	5.00
Credit Arrangements [Member] | Minimum
DEBT ARRANGEMENTS
Minimum Debt Service Coverage Ratio One					1.0
Cash Flow Leverage Ratio					1.00		1.00	1.00	1.00
First Internet Bank of Indiana [Member]
DEBT ARRANGEMENTS
Debt Instrument, Periodic Payment					$ 33
Debt Instrument, Interest Rate, Stated Percentage					3.99%
Debt Instrument, Face Amount					$ 4,500
Long-term Debt, Gross					3,748
First Internet Bank of Indiana [Member] | Equipment Draw Loan [Member]
DEBT ARRANGEMENTS
Long-term Debt					1,266
Line of Credit Facility, Additional Borrowing Capacity					1,429
First Internet Bank of Indiana [Member] | Construction Draw Loan [Member]
DEBT ARRANGEMENTS
Long-term Debt					4,230
Line of Credit Facility, Additional Borrowing Capacity					4,445
First Internet Bank of Indiana [Member] | Revolving Credit Facility [Member]
DEBT ARRANGEMENTS
Line of Credit Facility, Additional Borrowing Capacity					$ 5,000
Basis points deducted from prime rate					0.00%
Smithers Avanza Toxicology Services LLC acquisition | Unsecured promissory note
DEBT ARRANGEMENTS
Debt Instrument, Interest Rate, Stated Percentage					6.50%
Debt Instrument, Face Amount					$ 810
Long-term Debt					$ 650
PCRS acquisition | Unsecured promissory note
DEBT ARRANGEMENTS
Debt Instrument, Interest Rate, Stated Percentage					4.50%
Debt Instrument, Face Amount					$ 800
Long-term Debt					752
Initial Term Loan [Member]
DEBT ARRANGEMENTS
Long-term Debt					3,748	3,990
Subsequent Term Loan [Member] | First Internet Bank of Indiana [Member]
DEBT ARRANGEMENTS
Debt Instrument, Periodic Payment					$ 78
Debt Instrument, Interest Rate, Stated Percentage					5.06%
Debt Instrument, Face Amount					$ 5,500
Long-term Debt					4,004
Third Term Loan
DEBT ARRANGEMENTS
Long-term Debt					1,115	1,271
Third Term Loan | First Internet Bank of Indiana [Member]
DEBT ARRANGEMENTS
Debt Instrument, Periodic Payment					$ 20
Debt Instrument, Interest Rate, Stated Percentage					4.63%
Debt Instrument, Face Amount					$ 1,271
Long-term Debt					1,115
Fifth Term loan
DEBT ARRANGEMENTS
Long-term Debt					$ 1,891	0
Fifth Term loan | First Internet Bank of Indiana [Member]
DEBT ARRANGEMENTS
Debt Instrument, Interest Rate, Stated Percentage					4.00%
Debt Instrument, Face Amount					$ 1,939
Long-term Debt					1,891
Fourth Term Loan
DEBT ARRANGEMENTS
Long-term Debt					$ 1,425	$ 0
Fourth Term Loan | First Internet Bank of Indiana [Member]
DEBT ARRANGEMENTS
Debt Instrument, Interest Rate, Stated Percentage					4.00%
Debt Instrument, Face Amount					$ 1,500
Long-term Debt					$ 1,425
Current Credit Agreement [Member] | First Internet Bank of Indiana [Member] | Construction Draw Loan [Member]
DEBT ARRANGEMENTS
Debt Instrument, Interest Rate, Stated Percentage					5.20%
Capex Line [Member] | First Internet Bank of Indiana [Member] | Capital Expenditure Line of Credit [Member]
DEBT ARRANGEMENTS
Debt Instrument, Periodic Payment		$ 17
Debt Instrument, Face Amount				$ 948	$ 1,100
Long-term Debt					$ 920
Basis points deducted from prime rate					4.00%
Second Capex Line [Member] | First Internet Bank of Indiana [Member] | Revolving Credit Facility [Member]
DEBT ARRANGEMENTS
Long-term Debt					$ 2,613
Second Capex Line [Member] | First Internet Bank of Indiana [Member] | Capital Expenditure Line of Credit [Member]
DEBT ARRANGEMENTS
Debt Instrument, Face Amount					$ 3,000
Basis points deducted from prime rate					0.50%
Second Capex Line [Member] | First Internet Bank of Indiana [Member] | Capital Expenditure Line of Credit [Member] | Base Rate [Member]
DEBT ARRANGEMENTS
Basis points deducted from prime rate					4.00%
Payroll Protection Payroll (PPP) Program Loan
DEBT ARRANGEMENTS
Debt Instrument, Face Amount					$ 5,051
Forgiveness of the loan				$ 4,851
Payroll Protection Payroll (PPP) Program Loan | Huntington National Bank
DEBT ARRANGEMENTS
Debt Instrument, Periodic Payment	$ 283
Debt Instrument, Face Amount			$ 5,051
Number of installments for repayment | item	18
Forgiveness of the loan			$ 4,851

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Decrease for amounts of indebtedness forgiven by the holder of the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.

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