Financial Information by Geographic Location (Tables)

9 Months Ended

Jan. 31, 2015

Segment Reporting [Abstract]

Revenue by geographic location

	Three months ended January 31, 2015		Nine months ended January 31, 2015
United States	$	6,913,663	$	19,243,219
Europe		1,017,452		3,015,695
Other (principally Asia Pacific Region)		119,442		396,396
Consolidated	$	8,050,557	$	22,655,310

	Three months ended January 31, 2014		Nine months ended January 31, 2014
United States	$	6,246,904	$	18,562,000
Europe		830,553		2,359,604
Other (principally Asia Pacific Region)		563,622		1,496,434
Consolidated	$	7,641,079	$	22,418,038