Note 11 - Revolving Credit Agreement	12 Months Ended
Dec. 31, 2020
Notes to Financial Statements
Debt Disclosure [Text Block]	11. Revolving Credit Agreement On April 8, 2020, the Company submitted a loan notice to draw down the $50.0 million available under its existing credit facility, with an initial applicable interest of 2.08%. Interest expense for the year ended December 31, 2020 was $0.8 million associated with Credit Agreement, as defined below. During the three-months ended September 30, 2020, the Company repaid $25.0 million of the outstanding balance, and during the three-months ended December 31, 2020, the Company repaid the remaining $25.0 million of the outstanding balance. The existing credit facility was entered into on October 24, 2017. The Company, as borrower, entered into the five-year agreement with Bank of America, N.A., as administrative agent, swingline lender and issuer of letters of credit, for a $50.0 million senior revolving line of credit (the “Credit Agreement”). Subject to certain conditions, the Company may request up to an additional $50.0 million in commitments for a maximum aggregate commitment of $100.0 million, which requests must be approved by the Revolving Lenders (as defined in the Credit Agreement). Loans under the Credit Agreement generally bear interest equal to, at the Company’s option, either: (i) LIBOR plus the Applicable Margin, as defined below, or the (ii) Base Rate, defined as the highest of: (a) the Federal Funds Rate plus 0.50%, (b) Bank of America, N.A.’s prime rate and (c) the one month LIBOR adjusted daily plus 1.0%, plus the Applicable Margin. The Applicable Margin ranges from 0.25% to 1.75% based on the Company’s consolidated leverage ratios at the time of the borrowings under the Credit Agreement. The Company has agreed to pay a commitment fee in an amount that is equal to 0.25% per annum on the actual daily unused amount of the credit facility and that is due and payable quarterly in arrears. Loan origination costs are included in Other long-term assets and are being amortized over the five-year term of the Credit Agreement. As of December 31, 2020 and 2019, there are no outstanding borrowings under the Credit Agreement. The Credit Agreement contains customary representations, warranties, affirmative and negative covenants, including financial covenants, events of default, and indemnification provisions in favor of the Lenders. These include restrictive covenants that require the Company not to exceed certain maximum leverage and interest coverage ratios, limit its incurrence of liens and indebtedness, and its entry into certain merger and acquisition transactions or dispositions and place additional restrictions on other matters, all subject to certain exceptions. The Lender has been granted a first priority lien and security interest in substantially all of the Company’s assets, except for certain intangible assets.

Note 11 - Revolving Credit Agreement

12 Months Ended

Dec. 31, 2020

11. Revolving Credit Agreement

On April 8, 2020, the Company submitted a loan notice to draw down the $50.0 million available under its existing credit facility, with an initial applicable interest of 2.08%. Interest expense for the year ended December 31, 2020 was $0.8 million associated with Credit Agreement, as defined below. During the three-months ended September 30, 2020, the Company repaid $25.0 million of the outstanding balance, and during the three-months ended December 31, 2020, the Company repaid the remaining $25.0 million of the outstanding balance.

The existing credit facility was entered into on October 24, 2017. The Company, as borrower, entered into the five-year agreement with Bank of America, N.A., as administrative agent, swingline lender and issuer of letters of credit, for a $50.0 million senior revolving line of credit (the “Credit Agreement”). Subject to certain conditions, the Company may request up to an additional $50.0 million in commitments for a maximum aggregate commitment of $100.0 million, which requests must be approved by the Revolving Lenders (as defined in the Credit Agreement). Loans under the Credit Agreement generally bear interest equal to, at the Company’s option, either: (i) LIBOR plus the Applicable Margin, as defined below, or the (ii) Base Rate, defined as the highest of: (a) the Federal Funds Rate plus 0.50%, (b) Bank of America, N.A.’s prime rate and (c) the one month LIBOR adjusted daily plus 1.0%, plus the Applicable Margin. The Applicable Margin ranges from 0.25% to 1.75% based on the Company’s consolidated leverage ratios at the time of the borrowings under the Credit Agreement. The Company has agreed to pay a commitment fee in an amount that is equal to 0.25% per annum on the actual daily unused amount of the credit facility and that is due and payable quarterly in arrears. Loan origination costs are included in Other long-term assets and are being amortized over the five-year term of the Credit Agreement. As of December 31, 2020 and 2019, there are no outstanding borrowings under the Credit Agreement.

The Credit Agreement contains customary representations, warranties, affirmative and negative covenants, including financial covenants, events of default, and indemnification provisions in favor of the Lenders. These include restrictive covenants that require the Company not to exceed certain maximum leverage and interest coverage ratios, limit its incurrence of liens and indebtedness, and its entry into certain merger and acquisition transactions or dispositions and place additional restrictions on other matters, all subject to certain exceptions. The Lender has been granted a first priority lien and security interest in substantially all of the Company’s assets, except for certain intangible assets.