Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,266)	$ (7,915)	$ (10,264)	$ (246)
Other comprehensive income (loss):
Cumulative translation adjustments	171	(124)	(87)	853
Changes in market value of investments:
Changes in unrealized (losses) gains	(80)	117	(39)	58
Total net change in market value of investments	(80)	117	(39)	58
Changes in market value of derivatives:
Changes in market value of derivatives, net of tax (benefits) of ($34), ($187), ($52) and ($204), respectively	(54)	(340)	(85)	(313)
Reclassification adjustment for net (loss) gains included in net loss, net of taxes (benefits) of ($4), $177, $4, and $657, respectively	(7)	291	7	1,133
Total net change in market value of derivatives	(61)	(49)	(78)	820
Other comprehensive income (loss)	30	(56)	(204)	1,731
Total comprehensive income (loss)	$ (1,236)	$ (7,971)	$ (10,468)	$ 1,485

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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