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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Deferred income tax assets:    
Net operating losses $ 67,039 $ 60,083
Stock compensation 2,839 3,938
Other deferred assets 2,617 2,617
Accrued compensation 4,017 2,559
Operating lease liabilities 893 1,114
Accrued legal settlement 20,276 21,318
Other, net 216 21
Valuation allowance (85,527) (78,313)
Total deferred income tax assets 12,370 13,337
Deferred income tax liabilities:    
Intangible amortization (11,528) (12,240)
Operating lease right-of-use assets (690) (873)
Fixed asset depreciation (192) (249)
Total deferred income tax liabilities (12,410) (13,362)
Net deferred income taxes $ (40) $ (25)