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Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Taxes [Abstract]
Income tax expense (benefit) from continuing operations	$ 4,845,000	$ (898,000)	$ 7,781,000	$ 370,000
Effective income tax rate	34.60%	39.20%	31.80%	41.70%
Excess tax benefit from early adoption of new pronouncement	$ (199,000)		$ (590,000)
Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Bad debt income tax deduction			80,000,000
Accrued interest charges	$ 460,000		$ 460,000
Internal Revenue Service (IRS) [Member] | Tax Years 2012 and 2013 [Member]
Income Tax Examination [Line Items]
Loss carryback period			2 years

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- Definition

Amount of income tax benefit reflected in income tax expense as a result of early adoption of a new accounting pronouncement.

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Amount of ordinary bad debt income tax deduction.

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Period of time over which net operating income losses were carried back against preceding income in order to reduce tax liabilities in 'PnYnMnDTnHnMnS' format

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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The amount of estimated interest accrued as of the balance sheet date arising from income tax examinations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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