Variable Interest Entities (Details Textual) - USD ($)	3 Months Ended			6 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Variable Interest Entity [Line Items]
Gain on settlement of bankruptcy	$ 0		$ 18,000	$ 0	$ 4,527,000
Assets	148,401,000			148,401,000		$ 151,427,000
Liabilities	122,731,000			122,731,000		120,336,000
Net (Loss) Income	(3,353,000)		6,002,000	(4,310,000)	10,157,000
Operating income (loss)	(3,684,000)		466,000	(3,949,000)	1,465,000
Nonoperating income (expense)	(1,220,000)		$ (2,884,000)	(2,212,000)	(265,000)
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Gain on settlement of bankruptcy		$ 4,500,000			4,500,000
Assets	9,600			9,600		11,000.0
Liabilities	$ 500,000			500,000		$ 500,000
Net (Loss) Income				(32,000.0)	6,100,000
Operating income (loss)				(38,000.0)	(125,000.0)
Nonoperating income (expense)				$ 6,000.0	$ 6,200,000