Consolidated Statement of Stockholders' Equity (USD $) In Thousands, except Share data	Total	Class A Common Stock [Member]	Class B Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interests [Member]
Balance at Apr. 30, 2013	$ 15,451	$ 387	$ 10	$ 335,857	$ (324,377)	$ (592)	$ 4,166
Balance (in shares) at Apr. 30, 2013		38,662,000	988,000
Net loss	(738)				(531)		(207)
Other comprehensive loss	(205)					(205)
Issuances of Class A common stock	115	3		112
Issuances of Class A common stock, shares		349,000
Stock-based compensation	1,209			1,209
Contributions from noncontrolling interest holders	8						8
Balance at Oct. 31, 2013	$ 15,840	$ 390	$ 10	$ 337,178	$ (324,908)	$ (797)	$ 3,967
Balance (in shares) at Oct. 31, 2013		39,011,000	988,000