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INCOME TAXES (Tables)
12 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Schedule of Income (Loss) Before Income Taxes
The components of income (loss) before income taxes were as follows (in thousands):
 Years Ended December 31,
 202020192018
Domestic$(32,440)$41,184 $46,270 
Foreign(15,075)5,485 2,436 
Total income before taxes$(47,515)$46,669 $48,706 
Schedule of Provision for Income Taxes
The provision for income taxes consisted of the following (in thousands):
 Years Ended December 31,
 202020192018
Current -   
Federal$(6,179)$4,940 $7,295 
State(154)1,862 2,257 
Foreign2,663 2,982 2,629 
Total current$(3,670)$9,784 $12,181 
Deferred -   
Federal(10,568)2,618 2,389 
State(3,125)(224)123 
Foreign(1,078)(1,284)(1,508)
Total deferred$(14,771)$1,110 $1,004 
Total current and deferred taxes$(18,441)$10,894 $13,185 
Schedule of Differences Between Income Taxes Computed at Statutory Income Tax Rate and Provision For Income Taxes
The difference between income taxes computed at the statutory income tax rate and the provision for income taxes is as follows (in thousands):
 Years Ended December 31,
 202020192018
Income taxes computed at federal statutory rate$(9,978)$9,801 $10,228 
State income taxes, net of federal benefit(2,591)1,294 1,880 
Foreign taxes(492)311 150 
Nondeductible expenses5,617 1,108 954 
Enacted rate changes670 — — 
Research and development tax credit(16,878)(2,324)(480)
Foreign tax credit— (57)(346)
Valuation allowance16 (5)— 
Tax reform deferred tax remeasurement— — 81 
Deferred tax liability true up(551)1,065 — 
Uncertain tax positions5,057 665 172 
Other689 (964)546 
Total income tax expense (benefit)$(18,441)$10,894 $13,185 
Schedule of Deferred Tax Liabilities and Assets
Deferred tax liabilities and assets were comprised of the following (in thousands):
 December 31,
 20202019
Deferred tax assets:  
Allowance for doubtful accounts$1,784 $1,657 
Inventory7,073 3,254 
Research and development credit carryforward8,407 1,361 
Foreign tax credit carryforward64 64 
Net operating loss carryforward802 812 
Capital loss carryforward12,813 12,363 
Deferred compensation540 — 
Accruals5,690 4,077 
Investment in partnerships319 500 
Other312 — 
Total deferred tax assets$37,804 $24,088 
Less valuation allowance(12,813)(12,363)
Total deferred tax asset, net of valuation deferred tax liabilities :$24,991 $11,725 
Goodwill(8,570)(8,459)
Intangibles(8,512)(2,051)
Property and equipment(7,569)(8,319)
ROU asset and liability(323)— 
Unremitted foreign earnings(421)(421)
Deferred compensation— (317)
Method changes(754)(1,961)
Other(619)(69)
Net deferred tax liability$(1,777)$(9,872)
Schedule of Changes in Valuation Allowance for Deferred Tax Assets
The following summarizes changes in the balance of valuation allowances on deferred tax assets (in thousands):


  Years Ended December 31,
  202020192018
Balance at January 1$(12,363)$(12,564)$(12,220)
Changes due to federal and foreign capital loss carryforwards(450)201 (344)
Balance at December 31$(12,813)$(12,363)$(12,564)
Schedule of Tax Carryforwards
Tax carryforwards available for use on future income tax returns, prior to valuation allowance, at December 31, 2020, were as follows (in thousands):

  Domestic  ForeignExpiration
Net operating loss - foreign$— $414 2034 - 2040
Net operating loss - federal388 — 2036 - 2040
Capital loss carryforward - foreign— 
Indefinite
Capital loss carryforward - federal12,809 — 2021
Foreign tax credits64 — 2023, 2025
Federal research and development tax credits4,467 — 2026 - 2030
Texas research and development tax credits3,700 — 2037 - 2040
Louisiana research and development tax credits239 — 2024 - 2025
Schedule of Changes in Unrecognized Tax Benefits
Changes in the balance of unrecognized tax benefits excluding interest and penalties on uncertain tax positions were as follows (in thousands):
  Assets (Liabilities)
  202020192018
Balance at January 1$— $— $— 
   Increases related to prior year tax positions(5,057)— — 
   Decreases related to prior year tax positions— — — 
   Increases related to current year tax positions— — — 
   Settlements— — — 
   Lapse of statute of limitations— — — 
Balance at December 31$(5,057)$— $—