Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Summary of Significant Accounting Policies

Schedule of reconciliation of restricted cash

	December 31,		December 31,
	2020		2019
	(in thousands)
Cash and cash equivalents in balance sheet	$	48,668	$	61,926
Restricted cash in balance sheet		187		55
Total cash, cash equivalents and restricted cash in statements of cash flows	$	48,855	$	61,981

Schedule of allowances for credit losses related to trade accounts receivable and other receivables

	December 31,
	2020
		(in thousands)
Beginning balance	$	2,919
Cumulative-effect adjustment upon adoption of ASU 2016-13		404
Provision for credit losses		1,354
Write-offs		(457)
Total	$	4,220

Schedule of Accumulated Other Comprehensive Income (Loss)

	December 31,
	2020		2019
	(in thousands)
Beginning balance	$	919	$	(552)
Net unrealized gains on available-for-sale securities, net of tax		3,340		1,471
Ending balance	$	4,259	$	919