Summary of Significant Accounting Policies - Risk Concentrations - Additional Information (Details)

v3.20.1

Summary of Significant Accounting Policies - Risk Concentrations - Additional Information (Details) $ in Thousands			12 Months Ended
	Jun. 05, 2018 USD ($) payment	Oct. 13, 2017 USD ($) payment	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Risk Concentrations
Additions charged to costs and expenses			$ 431
Recovery of bad debt				$ 345
Accounts receivable written off			5,026	101
BPC
Risk Concentrations
Total collections on accounts receivable allowance				1,800
Number of payments to be received \| payment	5
Accounts receivable	$ 1,500
Accounts receivable written off			$ 4,800
Accounts Receivable Assignment Agreement \| Turbine International, LLC. and MTE Service
Risk Concentrations
Recovery of bad debt				400	$ 1,000
Total collections on accounts receivable allowance				1,500
Total consideration receivable		$ 2,500
Number of payments to be received \| payment		3
Payment not yet received				$ 400		$ 300	$ 300
Promissory Note Agreement \| Turbine International, LLC. and MTE Service
Risk Concentrations
Total consideration receivable		$ 3,800
Term of payments		3 years
Number of payments to be received \| payment		35
Amended Note Agreement \| Turbine International, LLC. and MTE Service
Risk Concentrations
Total consideration receivable	$ 3,800
Term of payments	3 years
Number of payments to be received \| payment	13

- Definition

Aggregate recoveries of accounts receivable as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

Represents the number of payments in which the entity will receive consideration due.

+ References

No definition available.

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- Definition

Represents the length of time in which payments are to be received.

+ References

No definition available.

+ Details

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- Definition

Represents the total consideration receivable on accounts receivable and promissory notes.

+ References

No definition available.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
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- Definition

Amount of increase in allowance for credit loss on accounts receivable, from recovery.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Amount of direct write-downs of accounts receivable charged against the allowance.

+ References

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Data Type:	xbrli:monetaryItemType
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- Definition

Amount of financing receivable past due.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Balance Type:	debit
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- Definition

Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
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- References

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- Details

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- Details

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- Details

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Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Risk Concentrations - Additional Information (Details)