Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Notes Tables
Notes Details

Basis of Presentation - Evaluation of Ability to Maintain Current Level of Operations (Details)

v3.20.2

Basis of Presentation - Evaluation of Ability to Maintain Current Level of Operations (Details) $ in Thousands				3 Months Ended				6 Months Ended
	Sep. 28, 2020	Jun. 01, 2020 employee	Mar. 23, 2020 company employee MW	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Mar. 31, 2020 USD ($)
Basis of Presentation
Net loss				$ (4,212)	$ (1,823)	$ (4,448)	$ (5,593)	$ (6,035)	$ (10,041)
Cash received (used) in operating activities								(20)	$ (11,420)
Cash and cash equivalents				16,782				16,782		$ 15,068
Outstanding borrowings				$ 32,000				$ 32,000
Business Continuity Plan, Number Of Employees Furloughed \| employee			52
Business Continuity Plan, Threshold Furloughed Period			45 days
Percentage Of Salary Cut Volunteered By Leadership Team			25.00%
Number Of Other Top Company Mangers Volunteered For Salary Cut \| company			25
Percentage Of Salary Cut Volunteered By Several Employees			15.00%
Percentage Of Salary Cut Volunteered By Other Top Managers			15.00%
Percentage Of Temporary Reduction In Base Cash Retainer			25.00%
Number Of Employees Eliminated \| employee		26
Capacity Of Pre Built Microturbine Finished Goods \| MW			5.9
Percentage of salary after business continuity plan	100.00%

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