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Fair Value (Tables)

3 Months Ended

Apr. 30, 2016

Financial Assets Measured at Fair Value on Recurring Basis

The Company’s financial assets that are accounted for at fair value on a recurring basis are presented in the tables below:

		Marketable Securities Fair Value as of April 30, 2016
		Level 1				Level 2				Level 3				Total
Assets:
Municipal and pre-refunded municipal bonds		$	—			$	49,673			$	—			$	49,673
Corporate bonds			24,318				—				—				24,318
Mutual funds, held in rabbi trust			3,934				—				—				3,934
Certificates of deposit			—				349				—				349
		$	28,252			$	50,022			$	—			$	78,274

		Marketable Securities Fair Value as of January 31, 2016
		Level 1				Level 2				Level 3				Total
Assets:
Municipal and pre-refunded municipal bonds		$	—			$	44,360			$	—			$	44,360
Corporate bonds			46,071				—				—				46,071
Mutual funds, held in rabbi trust			4,363				—				—				4,363
Certificates of deposit			—				2,867				—				2,867
		$	50,434			$	47,227			$	—			$	97,661

		Marketable Securities Fair Value as of April 30, 2015
		Level 1				Level 2				Level 3				Total
Assets:
Municipal and pre-refunded municipal bonds		$	—			$	86,924			$	—			$	86,924
Corporate bonds			64,537				—				—				64,537
Mutual funds, held in rabbi trust			4,686				—				—				4,686
Certificates of deposit			—				7,993				—				7,993
Treasury bills			11,089				—				—				11,089
Commercial paper			—				3,945				—				3,945
Federal government agencies			800				—				—				800
		$	81,112			$	98,862			$	—			$	179,974

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

+ Details

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