Revolving Credit Facility	3 Months Ended
Dec. 31, 2017
Text Block [Abstract]
Revolving Credit Facility	10. Revolving Credit Facility The Company has a revolving credit facility with available principal totaling $30.0 million, which terminates on November 2019. In addition, the agreement has a $5.0 million multi-currency overdraft facility in Ireland. Borrowings under the credit facility, if any, will bear interest at a benchmark rate plus a margin ranging from 1.00% to 1.75% based on the Company’s leverage ratio, as defined in the loan agreement. A facility fee is payable quarterly on unused commitments at a rate of 0.15% per annum. The Company has the option to increase the credit facility in increments of $5.0 million up to an additional $20.0 million, subject to approval of the lender. The Company’s obligations under the credit facility are secured by substantially all of its assets, other than intellectual property and real estate, as well as the majority of its equity interest in its subsidiaries. In connection with the credit facility, the Company is required to maintain certain financial covenants related to a maximum leverage ratio and a minimum EBITDA amount and to comply with nonfinancial covenants. As of December 31, 2017, the Company had no borrowings outstanding on the line of credit and was in compliance with all financial covenants under the credit facility.

10. Revolving Credit Facility

The Company has a revolving credit facility with available principal totaling $30.0 million, which terminates on November 2019. In addition, the agreement has a $5.0 million multi-currency overdraft facility in Ireland. Borrowings under the credit facility, if any, will bear interest at a benchmark rate plus a margin ranging from 1.00% to 1.75% based on the Company’s leverage ratio, as defined in the loan agreement. A facility fee is payable quarterly on unused commitments at a rate of 0.15% per annum. The Company has the option to increase the credit facility in increments of $5.0 million up to an additional $20.0 million, subject to approval of the lender. The Company’s obligations under the credit facility are secured by substantially all of its assets, other than intellectual property and real estate, as well as the majority of its equity interest in its subsidiaries.

In connection with the credit facility, the Company is required to maintain certain financial covenants related to a maximum leverage ratio and a minimum EBITDA amount and to comply with nonfinancial covenants. As of December 31, 2017, the Company had no borrowings outstanding on the line of credit and was in compliance with all financial covenants under the credit facility.