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Cash surrender value on life insurance policies (Notes)	3 Months Ended
	Apr. 30, 2015
Cash surrender value on life insurance policies [Abstract]
Cash surrender value on life insurance policies [Text Block]	Cash surrender value on life insurance policies. The Company has life insurance policies on members of management and other key employees to indemnify itself against the loss of talent, expertise, and knowledge. These life insurance contracts may be used to fund the Company's obligation under a deferred compensation agreement plan. On April 1, 2015, the Company obtained a loan in the amount of $1.9 million, sourced from the cash surrender value of certain life insurance policies. This loan was repaid in May 2015. The net cash surrender value of these policies was $1.4 million at April 30, 2015 and was included in long-term assets on the balance sheet.

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- Definition

The entire disclosure for corporate (COLI) or bank (BOLI) owned life insurance including the amount of cash surrender value that could be received as of the date of the statement of financial position, any restrictions on the company's ability to obtain the value of the life insurance policy on surrender, or any other additional information desired to be disclosed.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.12)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 12

-Article 5



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 325

-SubTopic 30

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6385255&loc=d3e42598-111609



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 325

-SubTopic 30

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6384206&loc=d3e41899-111602



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 325

-SubTopic 30

-Section 35

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6384439&loc=d3e42048-111605

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