Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Cash flows from operating activities:
Net (loss) income	$ (6,647)	$ 422	$ (3,419)
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Stock-based compensation expense	997	829	601
(Recovery of) provision for doubtful accounts	(30)	15	0
Gain on disposal of asset	0	(41)	0
Amortization of debt issuance costs	31	0	0
Depreciation and amortization	135	141	322
Changes in operating assets and liabilities:
Accounts receivable	1,774	(720)	(206)
Inventories	(1,008)	(740)	702
Prepaid expenses and other	34	(51)	(7)
Accounts payable	(850)	707	243
Accrued expenses	(371)	(25)	58
Customer deposits and deferred revenue	3,702	(984)	1,477
Income taxes payable	(15)	(65)	(5)
Deferred rent	(8)	(95)	(76)
Net cash used in operating activities	(2,256)	(607)	(310)
Cash flows from investing activities:
Purchases of property and equipment	(118)	(339)	(127)
Proceeds from sales of property and equipment	0	50	0
Net cash used in investing activities	(118)	(289)	(127)
Cash flows from financing activities:
Line of credit repayments, net	(777)	(324)	(307)
Proceed from issuance of long-term debt, net	3,760	0	0
Proceeds from issuance of common stock under private placement, net of issuance cost	2,574	0	1,138
Proceeds from issuance of common stock under employee plans	855	715	234
Net cash provided by financing activities	6,412	391	1,065
Effect of exchange rates on cash and cash equivalents	(320)	(10)	(377)
Net increase (decrease) in cash and cash equivalents	3,718	(515)	251
Cash and cash equivalents, beginning of year	1,809	2,324	2,073
Cash and cash equivalents, end of year	5,527	1,809	2,324
Supplemental Cash Flow Information:
Cash paid during the year for Income taxes	26	44	64
Cash paid during the year for Interest	130	27	49
Non-cash transactions:
Net change in capitalized stock-based compensation	$ (4)	$ 24	$ 0