DEBT - Additional Information (Details)	3 Months Ended
Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)
DEBT ARRANGEMENTS
Long-term Debt	$ 20,259,000	$ 15,087,000
Minimum \| President and Chief Executive Officer [Member]
DEBT ARRANGEMENTS
Life Insurance, Corporate or Bank Owned, Amount	$ 5,000,000
Credit Arrangements [Member] \| Maximum
DEBT ARRANGEMENTS
Minimum Debt Service Coverage Ratio One	1.25
Minimum Debt Service Coverage Ratio Two	5.00
EBITDA Ratio One	4.50
EBITDA Ratio Two	4.25
Credit Arrangements [Member] \| Minimum
DEBT ARRANGEMENTS
Minimum Debt Service Coverage Ratio One	1.0
Minimum Debt Service Coverage Ratio Two	1.00
EBITDA Ratio One	1.00
EBITDA Ratio Two	1.0
First Internet Bank of Indiana [Member]
DEBT ARRANGEMENTS
Debt Instrument, Periodic Payment	$ 33,000
Debt Instrument, Interest Rate, Stated Percentage	3.99%
Debt Instrument, Face Amount	$ 4,500,000
Long-term Debt, Gross	3,930,000
First Internet Bank of Indiana [Member] \| Equipment Draw Loan [Member]
DEBT ARRANGEMENTS
Long-term Debt	1,237,000
Line of Credit Facility, Additional Borrowing Capacity	1,429,000
First Internet Bank of Indiana [Member] \| Construction Draw Loan [Member]
DEBT ARRANGEMENTS
Long-term Debt	4,247,000
Line of Credit Facility, Additional Borrowing Capacity	4,445,000
First Internet Bank of Indiana [Member] \| Revolving Credit Facility [Member]
DEBT ARRANGEMENTS
Line of Credit Facility, Additional Borrowing Capacity	$ 5,000,000
Basis points deducted from prime rate	0.00%
Long-term Line of Credit	$ 725,000
Smithers Avanza Toxicology Services LLC acquisition \| Unsecured promissory note
DEBT ARRANGEMENTS
Debt Instrument, Interest Rate, Stated Percentage	6.50%
Debt Instrument, Face Amount	$ 810,000
PCRS acquisition \| Unsecured promissory note
DEBT ARRANGEMENTS
Debt Instrument, Periodic Payment	$ 800,000
Debt Instrument, Interest Rate, Stated Percentage	4.50%
Subsequent Term Loan [Member]
DEBT ARRANGEMENTS
Long-term Debt	$ 4,541,000	4,715,000
Subsequent Term Loan [Member] \| First Internet Bank of Indiana [Member]
DEBT ARRANGEMENTS
Debt Instrument, Periodic Payment	$ 78,000
Debt Instrument, Interest Rate, Stated Percentage	5.06%
Debt Instrument, Face Amount	$ 5,500,000
Long-term Debt	4,541,000
Third Term Loan
DEBT ARRANGEMENTS
Long-term Debt	1,255,000	1,271,000
Third Term Loan \| First Internet Bank of Indiana [Member]
DEBT ARRANGEMENTS
Debt Instrument, Periodic Payment	$ 20,000
Debt Instrument, Interest Rate, Stated Percentage	4.63%
Debt Instrument, Face Amount	$ 1,271,000
Long-term Debt	1,255,000
Fourth Term Loan
DEBT ARRANGEMENTS
Long-term Debt	$ 1,500,000	0
Fourth Term Loan \| First Internet Bank of Indiana [Member]
DEBT ARRANGEMENTS
Debt Instrument, Interest Rate, Stated Percentage	4.00%
Debt Instrument, Face Amount	$ 1,500,000
Long-term Debt	1,500,000
Fifth Term loan
DEBT ARRANGEMENTS
Long-term Debt	$ 1,939,000	$ 0
Fifth Term loan \| First Internet Bank of Indiana [Member]
DEBT ARRANGEMENTS
Debt Instrument, Interest Rate, Stated Percentage	4.00%
Debt Instrument, Face Amount	$ 1,939,000
Long-term Debt	$ 1,939,000
Current Credit Agreement [Member] \| First Internet Bank of Indiana [Member] \| Equipment Draw Loan [Member]
DEBT ARRANGEMENTS
Debt Instrument, Interest Rate, Stated Percentage	5.20%
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, Face Amount	$ 1,100,000
Long-term Debt	$ 948,000
Basis points deducted from prime rate	(0.50%)
Second Capex Line [Member] \| First Internet Bank of Indiana [Member] \| Capital Expenditure Line of Credit [Member]
DEBT ARRANGEMENTS
Debt Instrument, Face Amount	$ 3,000.00
Long-term Debt	$ 435,000
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%

Ratio of EBITDA two

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Ratio of EBITDA two

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Ratio of debt serve ratio one.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Face (par) amount of debt instrument at time of issuance.

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- Definition

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of the required periodic payments including both interest and principal payments.

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- Definition

This item represents the amount that could be realized under a life insurance contract or contracts owned by the Entity as of the date of the statement of financial position. Such Entity-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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