Commitments and Contingencies (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) $ / ft²	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Commitments and Contingencies [Abstract]
Lease term	15 years
Base rent per square foot (in dollars per square foot) | $ / ft²	18
Base rental	$ 1,100
Accumulated amortization on the leased property	5,300		$ 5,200
Lease Cost [Abstract]
Finance lease cost - interest expense	269	$ 272
Finance lease cost - amortization of right-of-use asset	67	66
Operating lease cost	75	181
Sublease income	(46)	(122)
Total lease cost	365	397
Cash paid for amounts included in the measurement of lease liabilities [Abstract]
Operating cash flows from finance lease	0	0
Operating cash flows from operating leases	65	213
Financing cash flows from finance lease	51	42
Total cash paid for amounts included in the measurement of lease liabilities	116	$ 255
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 0
Weighted average remaining lease term-finance lease	8 years 9 months 18 days	9 years 9 months 18 days
Weighted average remaining lease term-operating leases	2 years 7 months 6 days	3 years 1 month 6 days
Weighted average discount rate-finance lease	19.10%	19.10%
Weighted average discount rate-operating leases	5.00%	5.00%
Finance lease right-of-use asset, net of amortization	$ 1,800		1,900
Operating right-of-use assets, net of amortization	700		$ 800
Finance Leases [Abstract]
2020 (excluding the three months ended March 31, 2020)	957
2021	1,080
2022	1,080
2023	1,080
2024	1,080
Thereafter	4,320
Total lease payments	9,597
Less imputed interest	(5,035)
Total lease payments	4,562
Operating Leases [Abstract]
2020 (excluding the three months ended March 31, 2020)	332
2021	231
2022	164
2023	155
2024	61
Thereafter	0
Total lease payments	943
Less imputed interest	(80)
Total lease liabilities	863
Total Leases [Abstract]
2020 (excluding the three months ended March 31, 2020)	1,289
2021	1,311
2022	1,244
2023	1,235
2024	1,141
Thereafter	4,320
Total lease payments	10,540
Less imputed interest	(5,115)
Total lease liabilities	5,425
Minimum future sublease rental, due from affiliated entities	$ 800
Period of minimum future sublease rental, due from affiliated entities	4 years
Future sublease payments from AC per month	$ 15