| Accounts Receivable | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr. 30, 2016 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Receivables [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounts Receivable | Note 3. Accounts Receivable 
 Accounts receivable consisted of the following at April 30, 2016 and 2015: 
 
 
 Bad debt expense for the years ended April 30, 2016 and 2015, were $170,677 and $156,165 respectively. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| X | ||||||||||
| 
- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- References No definition available. 
 |