Equity Method Investment (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	9 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2019	Mar. 31, 2019
Schedule of Equity Method Investments [Line Items]
Transfer to Investments			$ 14
Transfer Of Patent To Investments			34
Loss on disposal of capitalized patent costs			(140)
Equipment	$ 8,088		$ 8,088	$ 9,830
TeamConnect LLC [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage	19.50%	19.50%	19.50%
Transfer to Investments	$ 174		$ 174
Transfer Of Patent To Investments			34
Loss on disposal of capitalized patent costs			140
Equipment		$ 72
Investment recorded		14	$ 48
Loss on disposal		$ 58