| Mar 31, 2012 | Mar 31, 2013 | Mar 31, 2014 | Mar 31, 2015 | Mar 31, 2016 | Mar 31, 2017 | Mar 31, 2018 | Mar 31, 2019 | Mar 31, 2020 | Mar 31, 2021 | Mar 31, 2022 | Mar 31, 2023 | Mar 31, 2024 | Mar 31, 2025 |
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| Cash and cash equivalents | 98 | 83 | 100 | 75 | - | - | - | - | 47 | 99 | 97 | 113 | 145 | 73 |
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| Accounts Receivable, after Allowance for Credit Loss, Current | 33 | 46 | 24 | 25 | 22 | 16 | 16 | 27 | 36 | 26 | 25 | 22 | 29 | 32 |
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| Contract assets | - | - | - | - | - | - | - | 3 | 2 | 2 | 2 | 2 | 2 | 5 |
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| Inventories | 16 | 12 | 0 | 1 | 3 | 2 | 2 | 2 | 4 | 1 | 7 | 10 | 5 | 5 |
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| Prepaid expenses and other current assets | - | - | - | - | - | - | - | - | 5 | 5 | 5 | 7 | 8 | 9 |
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| Total current assets | 154 | 146 | 130 | 105 | 96 | 74 | 64 | 79 | 93 | 133 | 136 | 155 | 189 | 124 |
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| Property and equipment, net | 17 | 16 | 12 | 12 | 14 | 16 | 18 | 16 | 12 | 9 | 6 | 15 | 18 | 17 |
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| Operating lease right-of-use assets | - | - | - | - | - | - | - | - | 14 | 12 | 10 | 13 | 18 | 17 |
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| Goodwill | 15 | 14 | 17 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 33 | 33 | 33 | 131 |
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| Intangible assets, net | 14 | 17 | 11 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 20 | 18 | 17 | 71 |
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| Deferred Income Tax Assets, Net | - | - | - | - | - | - | - | - | - | 2 | 3 | 3 | 67 | 67 |
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| Other non-current assets | 4 | 4 | 4 | 4 | 3 | 3 | 2 | 6 | 6 | 6 | 6 | 8 | 8 | 9 |
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| Total assets | 204 | 197 | 191 | 182 | 185 | 167 | 157 | 164 | 155 | 190 | 214 | 243 | 350 | 434 |
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| Accounts payable | 25 | 30 | 11 | 17 | 8 | 9 | 8 | 5 | 13 | 6 | 10 | 9 | 9 | 12 |
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| Contract liabilities | - | - | - | - | - | - | - | - | 42 | 38 | 46 | 52 | 56 | 71 |
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| Accrued liabilities | 24 | 17 | 14 | 10 | 13 | 8 | 9 | 15 | 9 | 11 | 11 | 14 | 20 | 22 |
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| Operating Lease, Liability, Current | - | - | - | - | - | - | - | - | 5 | 5 | 5 | 3 | 4 | 6 |
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| Finance Lease, Liability, Current | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 | - | - |
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| Total current liabilities | 78 | 74 | 48 | 51 | - | 46 | 45 | 58 | 69 | 61 | 71 | 79 | 89 | 111 |
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| Deferred income taxes, non-current | - | - | - | - | - | - | - | - | - | 1 | 1 | 2 | 1 | 11 |
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| Operating Lease, Liability, Noncurrent | - | - | - | - | - | - | - | - | 11 | 9 | 6 | 13 | 20 | 17 |
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| Debt, non-current | - | - | - | - | - | - | - | - | - | - | - | - | - | 24 |
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| Finance Lease, Liability, Noncurrent | - | - | - | - | - | - | - | - | 0 | 0 | 0 | - | - | - |
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| Other non-current liabilities | 6 | 5 | 6 | 4 | 4 | 4 | 4 | 4 | 2 | 4 | 3 | 4 | 4 | 5 |
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| Preferred Stock, Value, Issued | - | - | - | - | - | - | - | - | - | 35 | 35 | 35 | - | - |
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| Common Stock, Value, Issued | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 |
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| Treasury shares, 5,326,513 and 5,965,426 at March 31, 2025 and March 31, 2024, respectively | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
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| Additional Paid in Capital | -16 | -14 | -13 | -11 | -8 | -6 | -2 | 1 | 5 | 37 | 50 | 53 | 95 | 110 |
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| Retained earnings | 124 | 123 | 140 | 128 | 124 | 113 | 104 | 93 | 59 | 35 | 40 | 53 | 138 | 161 |
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| Accumulated other comprehensive loss | 0 | -1 | -0 | -0 | -0 | -0 | -0 | -0 | 0 | 0 | -0 | -4 | -4 | -13 |
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| Total shareholders' equity | 114 | 114 | 133 | 124 | 123 | 114 | 108 | 101 | 72 | 80 | 97 | 109 | 236 | 266 |
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| Total liabilities and shareholders' equity | 204 | 197 | 191 | 182 | 185 | 167 | 157 | 164 | 155 | 190 | 214 | 243 | 350 | 434 |
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