Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Jan. 31, 2014	Jan. 31, 2013
Amortization of Intangible Assets	$ 110,000us-gaap_AmortizationOfIntangibleAssets	$ 1,000us-gaap_AmortizationOfIntangibleAssets	$ 241,000us-gaap_AmortizationOfIntangibleAssets	$ 1,000us-gaap_AmortizationOfIntangibleAssets	$ 5,973us-gaap_AmortizationOfIntangibleAssets	$ 0us-gaap_AmortizationOfIntangibleAssets

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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