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Fair Value (Tables)

3 Months Ended

Apr. 30, 2017

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, 2017
		Level 1				Level 2				Level 3				Total
Assets:
Corporate bonds		$	104,812			$	—			$	—			$	104,812
Municipal and pre-refunded municipal bonds			—				45,584				—				45,584
Mutual funds, held in rabbi trust			5,072				—				—				5,072
Certificates of deposit			—				1,476				—				1,476
		$	109,884			$	47,060			$	—			$	156,944

		Marketable Securities Fair Value as of January 31, 2017
		Level 1				Level 2				Level 3				Total
Assets:
Corporate bonds		$	78,398			$	—			$	—			$	78,398
Municipal and pre-refunded municipal bonds			—				71,261				—				71,261
Mutual funds, held in rabbi trust			4,673				—				—				4,673
Certificates of deposit			—				1,023				—				1,023
		$	83,071			$	72,284			$	—			$	155,355

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

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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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