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REVENUE - Summary of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Mar. 31, 2025 | Mar. 31, 2024
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Revenue from Contract with Customer [Abstract] |  |  |  |  |  |
Accounts receivable, net |  | $ 13,249 |  | $ 12,845 |  | $ 14,022
Revenue earned but not billed |  | 3,611 | [1] | 2,908 | [1] | 4,539
Deferred revenue | [2] | $ 114 |  | $ 367 |  | $ 124
[1] | Within the revenue earned but not billed line on the Condensed Consolidated Balance Sheets, $0.0 million and $0.7 million was accounted for as a sales type lease under ASC 842 for December 31, 2025 and March 31, 2025, respectively, and therefore not considered a "contract asset", which is an asset defined by ASC 606.
[2] | Includes the unamortized portion of the funds received from the federal government in 2010 and 2011 as reimbursement for the costs to build the two facilities related to the power purchase agreements. As the transaction is not considered a contract with a customer, this value is not a contract liability as defined by ASC 606.

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- Definition Revenue Earned + References No definition available. + Details
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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
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- Definition Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(26)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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