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Note 17 - Business Segments (Tables)

6 Months Ended

Sep. 30, 2019

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

		Three Months Ended September 30,								Six Months Ended September 30,
		2019				2018				2019				2018
Revenues:
Grid		$	11,489			$	7,569			$	21,345			$	16,498
Wind			2,523				7,307				6,437				10,985
Total		$	14,012			$	14,876			$	27,782			$	27,483

		Three Months Ended September 30,								Six Months Ended September 30,
		2019				2018				2019				2018
Operating (loss) income:
Grid		$	(1,324	)		$	(2,870	)		$	(5,988	)		$	(5,537	)
Wind			(2,398	)			28,515				(3,721	)			27,150
Unallocated corporate expenses			(397	)			(918	)			(646	)			(2,013	)
Total		$	(4,119	)		$	24,727			$	(10,355	)		$	19,600

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

		September 30, 2019				March 31, 2019
Grid		$	34,479			$	31,075
Wind			12,474				8,167
Corporate assets			70,490				80,088
Total		$	117,443			$	119,330

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Tabular disclosure of all significant reconciling items in the reconciliation of total assets from reportable segments to the entity's consolidated assets.

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