XML 42 R30.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Note 6 - Comprehensive Income (Tables) | 3 Months Ended
--- | ---
Jul. 31, 2018
Notes Tables |
Comprehensive Income (Loss) [Table Text Block] |
($ in thousands) |  | Amount Before Tax |  |  | Tax Expense |  |  | Amount Net of Tax |
Change in unrealized gains on securities |  | $ | 539 |  |  | $ | (113 | ) |  | $ | 426 |
|  | $ | 539 |  |  | $ | (113 | ) |  | $ | 426 |
($ in thousands) |  | Amount Before Tax |  |  | Tax Expense |  |  | Amount Net of Tax |
Change in unrealized gains on securities |  | $ | 142 |  |  | $ | (50 | ) |  | $ | 92 |
|  | $ | 142 |  |  | $ | (50 | ) |  | $ | 92 |

X
- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e526-108580 + Details
Name: | us-gaap_ScheduleOfComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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