Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Deferred Revenue, by Arrangement, Disclosure [Table Text Block]

The following table provides a summary of the changes in deferred revenues related to extended warranties for the year ended March 31, 2020:

Deferred revenues related to extended warranties at April 1, 2019	$	361,791
Additional extended warranties		137,074
Revenue recognized for the year ended March 31, 2020		(85,311	)
Deferred revenues related to extended warranties at March 31, 2020	$	413,554

Disaggregation of Revenue [Table Text Block]

In the following tables, revenue is disaggregated by revenue category.

	For the Year Ended March 31, 2020
	Commercial		Government
Sales Distribution
Test Units	$	918,720	$	12,737,362
	$	918,720	$	12,737,362

	For the Year Ended March 31, 2019
	Commercial		Government
Sales Distribution
Test Units	$	845,103	$	9,239,379
	$	845,103	$	9,239,379

Revenue from External Customers by Geographic Areas [Table Text Block]

In the following table, revenue is disaggregated by geography.

	For the Year Ended March 31, 2020		For the Year Ended March 31, 2019
Geography
United States	$	7,205,596	$	9,677,822
International		8,569,347		2,438,228
Total	$	15,774,943	$	12,116,050