XML 51 R26.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Property and Equipment (Details Textual) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 31, 2014 | Jan. 31, 2013 | Jan. 31, 2014 | Jan. 31, 2013
Depreciation | $ 56,000 | $ 51,000 | $ 158,000 | $ 153,000

X
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
Name: | us-gaap_Depreciation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration