Other Intangible Assets - Other Intangible Assets (Detail)	6 Months Ended
	Sep. 30, 2015 USD ($)
Finite-Lived Intangible Assets [Line Items]
Cost	$ 8,901,000
Amortization Expense	228,000
Accumulated Amortization	4,393,000
Cost, Net of Accumulated Amortization	$ 4,508,000
Covenants Not to Compete [Member]
Finite-Lived Intangible Assets [Line Items]
Life	5 years
Cost	$ 775,000
Amortization Expense	10,000
Accumulated Amortization	772,000
Cost, Net of Accumulated Amortization	3,000
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Cost	7,922,000
Amortization Expense	211,000
Accumulated Amortization	3,510,000
Cost, Net of Accumulated Amortization	$ 4,412,000
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Life	18 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Life	20 years
TPA Licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Life	15 years
Cost	$ 204,000
Amortization Expense	7,000
Accumulated Amortization	111,000
Cost, Net of Accumulated Amortization	$ 93,000