| Schedule of Finite-Lived Intangible Assets |
The estimated amortizable lives of the principal intangible asset classifications are as follows: | | | | | | | Principal Intangible Asset Classification | Estimated Useful Life | | Purchased software | 3 years | | Internally developed software | 10-15 years | | In-place lease and other intangibles | Over lease term | | Trade names | 5 years | | Certification | 5 years | | Non-compete | 5 years | | License | 5 years | | Patents | 9 years | | Customer relationships | 10-15 years |
Intangible assets consisted of the following (in thousands): | | | | | | | | | | | | | | | | | | | March 31, 2026 | | Gross Carrying Amount | | Accumulated Amortization | | Net Book Value | | Purchased software | $ | 889 | | | $ | (681) | | | $ | 208 | | | Internally developed software | 5,196 | | (1,574) | | 3,622 | | | In-place lease and other intangibles | 1,094 | | (557) | | 537 | | | Customer relationships | 8,446 | | (2,707) | | 5,739 | | | Patents | 1,139 | | (1,118) | | 21 | | | Government contracts | 716 | | (195) | | 521 | | | Tradenames | 1,233 | | (46) | | 1,187 | | | Other | 1,551 | | (1,168) | | 383 | | | 20,264 | | (8,046) | | 12,218 | | | In-process software | 811 | | — | | 811 | | | Intangible assets, total | $ | 21,075 | | | $ | (8,046) | | | $ | 13,029 | |
| | | | | | | | | | | | | | | | | | | March 31, 2025 | | Gross Carrying Amount | | Accumulated Amortization | | Net Book Value | | Purchased software | $ | 865 | | | $ | (549) | | | $ | 316 | | | Internally developed software | 3,658 | | (1,111) | | 2,547 | | | In-place lease and other intangibles | 1,094 | | (460) | | 634 | | | Customer relationships | 8,012 | | (2,007) | | 6,005 | | | Patents | 1,139 | | (1,114) | | 25 | | | Government contracts | — | | — | | — | | | Tradenames | — | | — | | — | | | Other | 1,512 | | (1,089) | | 423 | | | 16,280 | | (6,330) | | 9,950 | | | In-process software | 70 | | — | | 70 | | | Intangible assets, total | $ | 16,350 | | | $ | (6,330) | | | $ | 10,020 | |
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| Schedule of Estimated Annual Amortization Expense |
Based on the intangible assets recorded at March 31, 2026 and assuming no subsequent additions to, or impairment of the underlying assets, and no changes in foreign currency exchange rates. the remaining estimated annual amortization expense is as follows (in thousands): | | | | | | | Amortization | | 2027 | $ | 2,150 | | | 2028 | 1,548 | | 2029 | 1,458 | | 2030 | 1,450 | | 2031 | 1,370 | | Thereafter | 4,242 | | | $ | 12,218 | |
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| Schedule of Goodwill |
Goodwill for relevant segments and corporate and other, at original cost, consists of the following (in thousands): | | | | | | | | | | | | | March 31, 2026 | | March 31, 2025 | | Overnight air cargo | $ | 1,113 | | | $ | 76 | | | Commercial aircraft, engines and parts | 4,227 | | | 4,227 | | | Digital solutions | 6,478 | | | 6,239 | | | Total reportable segment goodwill, at cost | 11,818 | | | 10,542 | | | Corporate and other | 376 | | | 376 | | | Less accumulated impairment | (376) | | | (376) | | | Goodwill, net of impairment | $ | 11,818 | | | $ | 10,542 | |
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