Lines of Credit	12 Months Ended
Sep. 30, 2020
Debt Disclosure [Abstract]
Lines of Credit	11. Line of Credit As of September 30, 2020 and September 30, 2019, the Company maintained an inventory line of credit with a borrowing capacity of $15.0 million and $20.0 million, respectively. The amount of the inventory line of credit and cash withdrawal was lowered in June of 2020 primarily due to lack of need for full use of the line. It may be used by the TS or HPP segment in the U.S. to purchase inventory from approved vendors with payment terms which exceed those offered by the vendors. No interest accrues under the inventory line of credit when advances are paid within terms, however, late payments are subject to an interest charge of the rate published in the Wall Street Journal as the “prime rate” plus 5%. The prime rate was 3.25% as of September 30, 2020. The credit agreement for the inventory line of credit contains financial covenants which require the Company to maintain the following TS segment-specific financial ratios: (1) a minimum current ratio of 1.2, (2) tangible net worth of no less than $4.0 million, and (3) a maximum ratio of total liabilities to total net worth of less than 5.0:1. As of September 30, 2020 and September 30, 2019, Company borrowings, all from the TS segment, under the inventory line of credit were $1.6 million and $2.5 million, respectively, and the Company was in compliance with all covenants. As of September 30, 2020 and September 30, 2019, this line of credit also included availability of a limited cash withdrawal of up to $1.0 million and $1.5 million, respectively. As of September 30, 2020 and September 30, 2019, there were no cash withdrawals outstanding.

11. Line of Credit

As of September 30, 2020 and September 30, 2019, the Company maintained an inventory line of credit with a borrowing capacity of $15.0 million and $20.0 million, respectively. The amount of the inventory line of credit and cash withdrawal was lowered in June of 2020 primarily due to lack of need for full use of the line. It may be used by the TS or HPP segment in the U.S. to purchase inventory from approved vendors with payment terms which exceed those offered by the vendors. No interest accrues under the inventory line of credit when advances are paid within terms, however, late payments are subject to an interest charge of the rate published in the Wall Street Journal as the “prime rate” plus 5%. The prime rate was 3.25% as of September 30, 2020. The credit agreement for the inventory line of credit contains financial covenants which require the Company to maintain the following TS segment-specific financial ratios: (1) a minimum current ratio of 1.2, (2) tangible net worth of no less than $4.0 million, and (3) a maximum ratio of total liabilities to total net worth of less than 5.0:1. As of September 30, 2020 and September 30, 2019, Company borrowings, all from the TS segment, under the inventory line of credit were $1.6 million and $2.5 million, respectively, and the Company was in compliance with all covenants. As of September 30, 2020 and September 30, 2019, this line of credit also included availability of a limited cash withdrawal of up to $1.0 million and $1.5 million, respectively. As of September 30, 2020 and September 30, 2019, there were no cash withdrawals outstanding.