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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2022
Income Tax Disclosure [Abstract]  
Schedule of components of income from continuing operation before income taxes
The components of income before income taxes are as follows:

 Years ended December 31,
 20222021
 (in thousands)
United States$11,864 $4,659 
Foreign(2,071)4,481 
Income before income taxes$9,793 $9,140 
Schedule of components of income tax expense
The components of income tax expense for the years ended December 31, 2022 and 2021 were as follows:

 FederalStateForeignTotal
 (in thousands)
2022    
Current$— $128 $2,161 $2,289 
Deferred3,758 (1,693)— 2,065 
Total$3,758 $(1,565)$2,161 $4,354 
2021
Current$— $(2)$1,597 $1,595 
Deferred4,072 121 — 4,193 
Total$4,072 $119 $1,597 $5,788 
Schedule of reconciliation of the federal income tax expense at the statutory rate to the effective income tax expense
The following is a reconciliation of the federal income tax expense at the statutory rate of 21% for the years ended December 31, 2022 and 2021 to the effective income tax expense:

 Years Ended December 31,
 20222021
 (in thousands)
Statutory federal income tax expense$2,057 $1,844 
State taxes, net of federal benefit(1,593)119 
Foreign tax paid1,509 — 
Foreign jurisdiction rate differential666 705 
Permanent differences-nondeductible executive compensation2,180 2,042 
Permanent differences and other(465)1,078 
Effective income tax expense$4,354 $5,788 
Schedule of activity related to the Company's unrecognized tax benefits The following table summarizes the activity related to the Company’s unrecognized tax benefits:
 (in thousands)
Balance as of December 31, 2020$330 
Decreases related to current year tax positions— 
Decreases due to tax positions expired(317)
Balance as of December 31, 202113 
Decreases related to current year tax positions11 
Decreases due to tax positions expired(5)
Balance as of December 31, 2022$19 
Schedule of tax effects of temporary differences of the deferred tax assets and liabilities
The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and liabilities are presented below:

 As of December 31,
 20222021
 (in thousands)
Deferred tax assets:  
Unearned lease revenue$3,867 $2,217 
State taxes— 
Inventory2,123 1,486 
Reserves and allowances4,425 6,781 
Other accruals15,973 2,577 
Lease liability1,366 146 
Net operating loss carry forward67,595 68,168 
California alternative minimum tax credit33 33 
Charitable contributions
Total deferred tax assets95,386 81,410 
Less: valuation allowance(536)(518)
Net deferred tax assets94,850 80,892 
Deferred tax liabilities:
Depreciation and impairment on aircraft engines and equipment(208,389)(183,131)
Notes receivable(5,479)(15,911)
Right of use liability(1,360)(139)
Other deferred tax liabilities(4,590)(4,595)
Net deferred tax liabilities(219,818)(203,776)
Other comprehensive income deferred tax liability(7,548)(1,448)
Net deferred tax liabilities$(132,516)$(124,332)