v3.19.1

Credit Facility (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Principal payments of Term Loan
April 1, 2019-December 31, 2019	$ 583
January 1, 2020-December 31, 2020	778
January 1, 2021-December 31, 2021	778
January 1, 2022-December 31, 2022	778
January 1, 2023-December 31, 2023	389
Total	3,306
Amortization of debt issuance costs
April 1, 2019December 31, 2019	343
January 1, 2020December 31, 2020	457
January 1, 2021December 31, 2021	457
January 1, 2022December 31, 2022	457
January 1, 2023December 31, 2023	120
Total	1,834
Credit Facility
Principal payments of Term Loan
Amortization and interest expense expensed	$ 56
Interest rate percentage	4.20%
Credit Facility | LIBOR | Minimum
Credit Facility
Spread on floating interest rate (as a percent)	1.75%
Credit Facility | LIBOR | Maximum
Credit Facility
Spread on floating interest rate (as a percent)	2.75%
Credit Facility | Prime Rate | Minimum
Credit Facility
Spread on floating interest rate (as a percent)	0.75%
Credit Facility | Prime Rate | Maximum
Credit Facility
Spread on floating interest rate (as a percent)	1.75%
Revolving Line of Credit
Credit Facility
Current issued borrowing capacity	$ 150,000
Amount outstanding under the revolving line of credit	$ 0
Revolving Line of Credit | Minimum
Credit Facility
Fee on unused portion of Revolving Line of Credit (as a percent)	0.25%
Revolving Line of Credit | Maximum
Credit Facility
Fee on unused portion of Revolving Line of Credit (as a percent)	0.50%
Term Loan
Credit Facility
Current issued borrowing capacity	$ 3,500

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

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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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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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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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