Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Summary of Significant Accounting Policies - Revenue by Product (Details)

v3.7.0.1

Summary of Significant Accounting Policies - Revenue by Product (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue by product
Total from Microturbine Products	$ 48,293	$ 58,400
Accessories and Parts	15,032	14,716
Total Product, Accessories and Parts	63,325	73,116
Service	13,844	12,095
Total revenue	77,169	85,211
C30
Revenue by product
Total from Microturbine Products	2,608	1,815
C65
Revenue by product
Total from Microturbine Products	11,985	12,291
C200
Revenue by product
Total from Microturbine Products	1,878	3,884
C600
Revenue by product
Total from Microturbine Products	5,058	6,194
C800
Revenue by product
Total from Microturbine Products	4,615	8,058
C1000
Revenue by product
Total from Microturbine Products	21,537	25,877
Waste heat recovery generator
Revenue by product
Total from Microturbine Products	100
Unit upgrades
Revenue by product
Total from Microturbine Products	$ 512	$ 281

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+ References

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- Definition

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+ References

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(d))
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