XML 33 R21.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Note 13 - Restricted Cash and Deposits | 6 Months Ended
--- | ---
Oct. 31, 2017
Notes to Financial Statements |
Restricted Assets Disclosure [Text Block] | Note 13 - Restricted Cash and Deposits: Restricted Money Market Investment in the noncurrent assets on the Consolidated Condensed Balance Sheet at October 31, 2017, includes $469,000, which represents cash invested in a bank money market fund securing a letter of credit ("LOC") in the amount of $469,000 issued to the sublandlord as a security deposit for the Company's NYC leased corporate office facility.

X
- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for assets that are restricted in their use, generally by contractual agreements or regulatory requirements. This would include, but not limited to, a description of the restricted assets and the terms of the restriction. + References No definition available. + Details
Name: | us-gaap_RestrictedAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration