Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Net operating loss carryforwards	$ 22,610	$ 6,993
Foreign tax credits	796	796
Acquisition expenses	491	855
Share-based compensation	418	141
Bad debts	965	252
Accrued expenses	1,546	2,529
Tax over book depreciation	4,195	7,019
Intangible assets	3,835	0
Operating lease liabilities	1,331
Disallowed interest expense	3,855	0
Other	171	102
Total deferred tax assets	40,213	18,687
Less: valuation allowance	(38,721)	(17,732)
Total deferred tax assets, net	1,492	955
Deferred tax liabilities:
Book over tax depreciation	(356)	(137)
Intangible assets	0	(1,175)
Operating lease right of use assets	(1,381)
Total deferred tax liabilities	(1,737)	(1,312)
Net deferred tax liability	$ (245)	$ (357)