Commitments and Contingencies (Loan Contracts with Off-Balance Sheet Commitments) (Details) - USD ($)	3 Months Ended
Jun. 30, 2018	Jul. 01, 2017	Mar. 31, 2018
Loan Contracts with Off-Balance Sheet Commitments
Construction loan contract amount	$ 29,961,000		$ 27,093,000
Cumulative advances	(12,259,000)		(11,088,000)
Remaining construction contingent commitment	17,702,000		$ 16,005,000
CountryPlace Commitment [Member]
Loss Contingencies [Line Items]
Recognized gain (loss) on the forward sales and whole loan commitments	(175,000)	$ 155,000
Gain (Loss) on Derivative Instruments, Net, Pretax	$ 20,000	$ (25,000)

Loan contracts with off balance sheet commitments.

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Remaining construction contingent commitment.

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Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

+ References

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

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Amount before allowance of loans issued to build, improve or remodel a residential home. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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