|
Revenue by geographic location (Details) (USD $)
|
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
|
Apr. 30, 2014
|
Apr. 30, 2013
|
Apr. 30, 2012
|
||||||
| Revenues | $ 30,399,000 | $ 27,616,000 | $ 36,079,000 | |||||
| Total assets | 7,572,000 | 8,165,000 | 11,430,000 | |||||
| Long lived assets | 1,353,000 | 1,697,000 | 2,503,000 | |||||
|
United States
|
||||||||
| Revenues | 24,917,000 | 21,702,000 | 27,980,000 | |||||
| Total assets | 7,556,000 | 8,153,000 | 11,373,000 | |||||
| Long lived assets | 1,353,000 | 1,697,000 | 2,503,000 | |||||
|
Europe
|
||||||||
| Revenues | 3,431,000 | 3,983,000 | 5,393,000 | |||||
| Total assets | 16,000 | 12,000 | 54,000 | |||||
| Long lived assets | 0 | 0 | 0 | |||||
|
Other
|
||||||||
| Revenues | 2,051,000 | [1] | 1,931,000 | [1] | 2,706,000 | [1] | ||
| Total assets | 0 | [1] | 0 | [1] | 3,000 | [1] | ||
| Long lived assets | $ 0 | $ 0 | $ 0 | |||||
|
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