Summary of Significant Accounting Policies Summary of Significant Accounting Policies Text Tag (Details)	12 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)
Stockholders' Equity Attributable to Parent	$ 52,301,000	$ 48,894,000	$ 47,136,000
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	0
FNMA & 3rd party loans excluded from financial statements	16,800,000	$ 18,300,000
Number of Reportable Segments		1
Servicing fee income	38,000	$ 44,000
Mortgage Loans in Process of Foreclosure, Amount	2,500,000	3,000,000.0
Property, Plant and Equipment [Line Items]
Stockholders' Equity Attributable to Parent	52,301,000	48,894,000	47,136,000
Stockholders' Equity Attributable to Parent	52,301,000	48,894,000	47,136,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 0	19,951,000
Cumulative Effect, Period of Adoption, Adjustment
Stockholders' Equity Attributable to Parent		5,339,000
Property, Plant and Equipment [Line Items]
Stockholders' Equity Attributable to Parent		5,339,000
Stockholders' Equity Attributable to Parent		5,339,000
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-02
Stockholders' Equity Attributable to Parent		5,300,000
Property, Plant and Equipment [Line Items]
Stockholders' Equity Attributable to Parent		5,300,000
Stockholders' Equity Attributable to Parent		5,300,000
Minimum | Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Minimum | Furnishings and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Maximum | Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	25 years
Maximum | Furnishings and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Accumulated Deficit
Stockholders' Equity Attributable to Parent	$ (42,656,000)	(52,285,000)	(52,201,000)
Property, Plant and Equipment [Line Items]
Stockholders' Equity Attributable to Parent	(42,656,000)	(52,285,000)	(52,201,000)
Stockholders' Equity Attributable to Parent	(42,656,000)	(52,285,000)	(52,201,000)
Accumulated Other Comprehensive Loss
Stockholders' Equity Attributable to Parent	(3,175,000)	932,000	(939,000)
Property, Plant and Equipment [Line Items]
Stockholders' Equity Attributable to Parent	(3,175,000)	932,000	(939,000)
Stockholders' Equity Attributable to Parent	$ (3,175,000)	$ 932,000	$ (939,000)