STOCK OPTIONS AND INCENTIVE PLANS (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of the option shares to be expensed	$ 684
Share-based compensation expense	22	110	384
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares)	7,262,064	7,262,064
Expiration date	Dec. 31, 2015	Dec. 31, 2015
Stock exercise price (in dollars per share)	$ 0	$ 0.49	$ 0.49
Number of options than can be exercised (in shares)	0	0	0
Target price of share (in dollars per share)	$ 0.49	$ 0.49
Share-based compensation expense	$ 22	$ 110
Strike Price (in dollars per share)	$ 1.36	$ 1.36
Stock Price (in dollars per share)	$ 0.49	$ 0.49
Volatility (in hundredths)	125.00%
Term of award	3 years 1 month 6 days
Dividend yield (in hundredths)	0.00%
Interest Rate (in hundredths)	1.01%
Options exercisable at April 30 (in shares)	0	0	0
Weighted average fair value per share options granted per year (in dollars per share)	$ 0.49	$ 0.49	$ 0.49
Option, Exercise price range [Abstract]
Range of Exercise Prices (in dollars per share)	$ 0.49
Number Outstanding and Exercisable (in shares)	0
Weighted Average Remaining Contract Life	1 year 1 month 6 days
Weighted Average Exercise and Outstanding Price (in dollars per share)	$ 0.49
Options [Roll Forward]
Outstanding Beginning (in shares)	7,262,064	7,262,064	7,262,064
Granted (in shares)	0	0	0
Expired (in shares)	0	0	0
Exercised (in shares)	7,262,064	0	0
Outstanding Ending (in shares)		7,262,064	7,262,064
Average Price [Roll Forward]
Outstanding Beginning (in dollars per share)	$ 0.49	$ 0.49	$ 0.49
Granted (in dollars per share)	$ 0	$ 0
Expired (in dollars per share)	$ 0	$ 0
Exercised (in dollars per share)	$ 0.49	$ 0
Outstanding Ending (in dollars per share)	$ 0	$ 0.49	$ 0.49
Incentive Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock exercise price (in dollars per share)	$ 0.49
Number of groups incentive stock options are allocated	3
Number of conditions for vesting	2
Average Price [Roll Forward]
Outstanding Ending (in dollars per share)	$ 0.49
Incentive Stock Option [Member] | Year 1 Target [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options than can be exercised (in shares)	2,420,688
Target price of share (in dollars per share)	$ 0.92
Stock Price (in dollars per share)	$ 0.92
Options exercisable at April 30 (in shares)	2,420,688
Incentive Stock Option [Member] | Year 2 Target [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options than can be exercised (in shares)		2,420,688
Target price of share (in dollars per share)	$ 1.41
Stock Price (in dollars per share)	$ 1.41
Options exercisable at April 30 (in shares)		2,420,688
Incentive Stock Option [Member] | Year 3 Target [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options than can be exercised (in shares)			2,420,688
Target price of share (in dollars per share)	$ 1.90
Stock Price (in dollars per share)	$ 1.90
Options exercisable at April 30 (in shares)			2,420,688