Leases (Detail Textuals) - USD ($)	6 Months Ended
	Sep. 30, 2019	Mar. 31, 2019
Lessee Lease Description [Line Items]
Operating lease, liability	$ 2,247,000	$ 0
Operating lease, right-of-use asset	$ 2,200,000	$ 0
Branch network lease agreement
Lessee Lease Description [Line Items]
Operating lease, existence of option to extend	true
Operating lease minimum term to extend	1 year
Operating lease maximum term to extend	3 years
Corporate headquarters lease agreement
Lessee Lease Description [Line Items]
Operating lease expiration period	2020-04
Minimum | Branch network lease agreement
Lessee Lease Description [Line Items]
Operating lease, term of contract	1 year
Maximum | Branch network lease agreement
Lessee Lease Description [Line Items]
Operating lease, term of contract	5 years