Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Feb. 28, 2015		Feb. 28, 2014
Cash flows from operating activities:
Net (loss) income	$ (4,747)		$ 183
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Stock-based compensation expense	693		625
(Recovery of) provision for doubtful accounts	(44)		13
Gain on disposal of fixed asset	0		(41)
Depreciation and amortization	98		119
Changes in operating assets and liabilities:
Accounts receivable	2,584		(685)
Inventories	(706)		(546)
Prepaid expenses and other	(129)		(123)
Accounts payable	6		1,075
Accrued expenses	(71)		8
Customer deposits and deferred revenue	663		(691)
Income taxes payable	21		(35)
Deferred rent	(8)		(71)
Net cash used in operating activities	(1,640)		(169)
Cash flows from investing activities:
Purchases of property and equipment	(106)		(154)
Proceeds from sales of property and equipment	0		50
Net cash used in investing activities	(106)		(104)
Cash flows from financing activities:
Line of credit repayments, net	(662)		(695)
Proceeds from issuance of common stock under private placement, net of issuance costs	2,574		0
Proceeds from issuance of common stock under employee plans	553		502
Net cash provided by (used in) financing activities	2,465		(193)
Effect of exchange rates on cash	(254)		(12)
Net increase (decrease) in cash and cash equivalents	465		(478)
Cash and cash equivalents, beginning of period	1,809	[1]	2,324
Cash and cash equivalents, end of period	2,274		1,846
Supplemental disclosure of non-cash flow information
Net change in capitalized share-based compensation	$ 29		$ 0

[1] The condensed consolidated balance sheet at May 31, 2014 has been derived from the audited consolidated financial statements at that date.