Income Taxes - Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Net operating loss carryforwards	$ 23,929	$ 22,043
Research and development and other credits	72	72
Reserves	402	336
Operating lease liability	1,265
Interest Carryover	192	0
Other, net	1,263	1,013
Total deferred tax assets	27,123	23,464
Deferred tax liabilities:
Right of use asset	(1,236)
Fixed assets and other	(2,167)	(2,588)
Intangibles	(4,597)	(756)
Total deferred tax liabilities	(8,000)	(3,344)
Valuation allowance for deferred tax assets	(19,146)	(20,241)
Net deferred tax liabilities	$ (23)	$ (121)