Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Accrued expense	$ 2,426	$ 2,553
Net operating loss carryforward	1,216	5,589
Deferred financing costs	400	553
Stock compensation	892	861
Tax credit carryforward	17	1,118
Interest limitation	8,773	4,412
Lease liability	1,728
Other	669	927
Total gross deferred tax asset	16,121	16,013
Valuation allowance	(5,638)	(6,823)
Net deferred tax assets	10,483	9,190
Deferred tax liabilities:
Plant, property and leasehold improvements	(5,505)	(3,851)
Intangible assets	(8,877)	(9,311)
Right-to-use assets	(1,486)
Prepaid expense and other	(1,511)	(1,777)
Total gross deferred tax liabilities	(17,379)	(14,939)
Net deferred tax liabilities	$ (6,896)	$ (5,749)