Commitments and Contingencies (Loan Contracts with Off-Balance Sheet Commitments) (Details) - USD ($)	3 Months Ended	9 Months Ended
Dec. 31, 2016	Dec. 26, 2015	Dec. 31, 2016	Dec. 26, 2015	Apr. 02, 2016
Loan Contracts with Off-Balance Sheet Commitments
Construction loan contract amount	$ 19,302,000		$ 19,302,000		$ 15,109,000
Cumulative advances	(7,512,000)		(7,512,000)		(6,566,000)
Remaining construction contingent commitment	11,790,000		11,790,000		$ 8,543,000
CountryPlace Commitment [Member]
Loss Contingencies [Line Items]
Recognized gain (loss) on the forward sales and whole loan commitments	150,000	$ 42,000	139,000	$ 27,000
Gain (Loss) on Derivative Instruments, Net, Pretax	$ (17,000)	$ (1,000)	$ (7,000)	$ (6,000)

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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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(a)(2),(b))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

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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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