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Other Intangible Assets - Other Intangible Assets (Detail) - USD ($) | 12 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Finite Lived Intangible Assets [Line Items] |  |
Cost | $ 8,901,000 | $ 8,901,000
Amortization Expense | 437,000 | 437,000
Accumulated Amortization | 5,486,000 | 5,050,000
Cost, Net of Accumulated Amortization | $ 3,415,000 | $ 3,851,000
Covenant Not to Compete [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Life | 5 years | 5 years
Cost | $ 775,000 | $ 775,000
Amortization Expense | 0 | 0
Accumulated Amortization | 775,000 | 775,000
Cost, Net of Accumulated Amortization | 0 | 0
Customer Relationships [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Cost | 7,922,000 | 7,922,000
Amortization Expense | 423,000 | 423,000
Accumulated Amortization | 4,566,000 | 4,144,000
Cost, Net of Accumulated Amortization | $ 3,356,000 | $ 3,778,000
Customer Relationships [Member] | Minimum [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Life | 18 years | 18 years
Customer Relationships [Member] | Maximum [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Life | 20 years | 20 years
Third Party Administrator Licenses [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Life | 15 years | 15 years
Cost | $ 204,000 | $ 204,000
Amortization Expense | 14,000 | 14,000
Accumulated Amortization | 145,000 | 131,000
Cost, Net of Accumulated Amortization | $ 59,000 | $ 73,000

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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