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Income Taxes - Deferred Income Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Deferred tax assets:    
Bad debt reserves $ 26 $ 59
Goodwill and intangibles 12,523 13,893
Employee benefits 57 244
Interest expense 0 0
Tax loss carryforwards 10,676 12,671
Other 129 251
Subtotal 23,411 27,118
Less: Valuation allowance 0 0
Total net deferred tax assets 23,411 27,118
Deferred tax liabilities:    
Property and equipment (3,590) (4,861)
Operating leases 0 (4)
Other 0 0
Total deferred tax liabilities (3,590) (4,865)
Net deferred tax assets $ 19,821 $ 22,253