Schedule 1-Parent Only Disclosures [Schedule] Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Proceeds from Dividends Received	$ 3,900	$ 2,200	$ 2,700
Loss attributable to equity method investments	352	0	0
Equity Method Investment, Realized Gain (Loss) on Disposal			1,000
Warrant expense	0	0	(1,036)
Stock-based compensation expense	6,846	4,775	3,419
Other Operating Income (Expense), Net	(105)	240	383
Net cash provided by operating activities	16,157	12,680	9,666
Proceeds from Sale of Equity Method Investments	0	0	1,402
Purchases of property and equipment	(5,373)	(56,936)	(3,131)
Proceeds from (Payments for) Other Financing Activities	(438)	365	(694)
Payments for (Proceeds from) Investments	4,000	3,000	0
Net cash used in investing activities	(28,008)	(81,451)	(13,056)
Proceeds from Issuance or Sale of Equity	0	65,671	0
Payments Related to Tax Withholding for Share-based Compensation	(1,667)	(1,839)	(1,170)
Proceeds from exercise of stock options	2,982	3,601	2,545
Proceeds from debt financing, net of financing fees	13,167	13,431	4,400
Repayments of Long-term Debt	0	(10,000)	0
Net cash provided by financing activities	14,044	71,229	5,081
Effect of Exchange Rate on Cash and Cash Equivalents	423	(812)	378
Cash, cash equivalents, and restricted cash at beginning of period	26,552
Cash, cash equivalents, and restricted cash at end of period	29,168	26,552
Capital Lease Obligations Incurred	0	0	689
Redemption of Warrants Non-Cash; Common Stock	4,500	3,000	0
Acquisition of Corporate Real Estate Non-Cash, Common Stock	0	9,640	0
Parent Company
Condensed Financial Statements, Captions [Line Items]
Cash, Cash Equivalents, and Restricted Cash, Carrying Value, End of Period	2,642	3,533	1,705
Cash, Cash Equivalents, and Restricted Cash, Carrying Value	3,533	1,705	4,001
Net loss	(1,809)	(927)	(1,503)
Loss attributable to equity method investments	205	0	0
Income (Loss) from Subsidiaries, before Tax	390	1,332	(4,163)
Depreciation and amortization	211	436	697
Equity Method Investment, Realized Gain (Loss) on Disposal	0	0	(1,036)
Stock-based compensation expense	6,846	4,775	3,419
Other Operating Income (Expense), Net	48	108	(380)
Increase (Decrease) in Operating Assets	(601)	(97)	743
Net cash provided by operating activities	4,305	2,963	6,103
Proceeds from Sale of Equity Method Investments	0	0	1,402
Purchases of property and equipment	(728)	(164)	(135)
Payments to Acquire Interest in Subsidiaries and Affiliates	(11,931)	(67,884)	(12,168)
Proceeds from (Payments for) Other Financing Activities	(7,019)	(4,237)	(2,668)
Net cash used in investing activities	(19,678)	(72,285)	(13,570)
Proceeds from Issuance or Sale of Equity	0	65,671	0
Payments Related to Tax Withholding for Share-based Compensation	(1,667)	(1,839)	(1,170)
Proceeds from exercise of stock options	2,982	3,601	2,545
Proceeds from debt financing, net of financing fees	13,167	13,430	4,400
Repayments of Long-term Debt	0	(10,000)	0
Other financing costs	0	287	(604)
Net cash provided by financing activities	14,482	71,150	5,170
Net change in cash, cash equivalents, and restricted cash	(891)	1,828	(2,297)
Interest paid	1,166	1,007	333
Capital Lease Obligations Incurred	0	0	471
Redemption of Warrants Non-Cash; Common Stock	4,500	3,000	0
Acquisition of Corporate Real Estate Non-Cash, Common Stock	$ 0	$ 9,640	$ 0