Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Feb. 28, 2013	May 31, 2012
Condensed Consolidated Balance Sheets Parenthetical
Accounts receivable allowance for doubtful accounts	$ 24	$ 39
Common stock shares par value	$ 0.01	$ 0.01
Common stock shares Issued	9,363	9,135
Common stock shares Outstanding	9,363	9,135

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Name Regulation S-X (SX)

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-Name Accounting Standards Codification

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Balance Type:	na
Period Type:	instant