Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity Incentive plan shares for issuance authorized	5,000,000
Weighted Average Exercise Price, Exercised		$ 3.95
Number of shares exercised on a net exercise basis		250,000
Number of shares exercised and delivered		44,698
Number of shares exercised for cash		24,750
Number of stock options exercised	0	274,750
Accrued expenses and other current liabilities	$ 3,507		$ 3,366
STIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accrued expenses and other current liabilities	0		$ 0
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value	100	$ 100
Fair value	$ 200	$ 100
Vested (in shares)	35,072	14,804

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Stock Issued During Period Shares Stock Options Exercised For Cash

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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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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Number of shares authorized for issuance under share-based payment arrangement.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Intrinsic value of vested award under share-based payment arrangement. Excludes share and unit options.

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Number of share options (or share units) exercised during the current period.

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