REDEEMABLE COMMON STOCK AND SHARES - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	May 31, 2016	May 31, 2015
Redeemable common stock:
Redeemable common stock balance at beginning of year	$ 1,190	$ 275
Issuance of redeemable common stock	50	850
Repurchase of redeemable common stock	0	(275)
Accretion of redeemable common stock to redemption value	20	340
Redeemable common stock at end of year	1,260	1,190
Common stock:
Common stock balance at beginning of year	73	83
Repurchase of common stock	0	(10)
Common stock balance at end of year	73	73
Additional paid in capital:
Additional paid in capital balance at beginning of year	27,056	27,338
Repurchase of common stock	0	(27)
Accretion of redeemable common stock to redemption value	(20)	(340)
Fee to be paid to redeemable common stock investors	(6)	(30)
Stock based compensation	108	115
Additional paid in capital balance at end of year	27,138	27,056
Accumulated deficit:
Accumulated deficit balance at beginning of year	(27,400)	(26,081)
Net loss	(673)	(1,319)
Accumulated deficit balance at end of year	(28,073)	(27,400)
Accumulated other comprehensive loss:
Accumulated other comprehensive loss balance at beginning of year	(283)	(482)
Foreign currency translation adjustments	5	199
Accumulated other comprehensive loss balance at end of year	(278)	(283)
Total shareholders' deficit at end of year	$ (1,140)	$ (554)
Outstanding shares:
Balance of redeemable common stock at beginning of year	170,000	50,000
Repurchase of redeemable common stock	0	(50,000)
Issuance of redeemable common stock	10,000	170,000
Balance of redeemable common stock at end of year	180,000	170,000
Balance of common stock at beginning of year	723,724	825,135
Repurchase of common stock	0	(101,411)
Balance of common stock at end of year	723,724	723,724