Summary of Significant Accounting Policies (Tables)

9 Months Ended

Dec. 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 for the nine months ended December 31, 2020:

Deferred revenues at April 1, 2020	$	413,554
Additional extended warranties		20,584
Revenue recognized for the nine months ended December 31, 2020		(66,420	)
Deferred revenues at December 31, 2020	$	367,718

Disaggregation of Revenue [Table Text Block]

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

	For the Three Months Ended December 31, 2020
	Commercial		Government
Sales Distribution
Test Units	$	104,346	$	2,212,507
	$	104,346	$	2,212,507

	For the Three Months Ended December 31, 2019
	Commercial		Government
Sales Distribution
Test Units	$	271,230	$	3,919,604
	$	271,230	$	3,919,604

	For the Nine Months Ended December 31, 2020
	Commercial		Government
Sales Distribution
Test Units	$	280,743	$	7,697,701
	$	280,743	$	7,697,701

	For the Nine Months Ended December 31, 2019
	Commercial		Government
Sales Distribution
Test Units	$	782,283	$	9,531,198
	$	782,283	$	9,531,198

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

In the following table, revenue is disaggregated by geography.

	For the Three Months Ended December 31, 2020		For the Three Months Ended December 31, 2019
Geography
United States	$	1,304,664	$	2,070,339
International		1,368,078		2,662,796
Total	$	2,672,742	$	4,733,135

	For the Nine Months Ended December 31, 2020		For the Nine Months Ended December 31, 2019
Geography
United States	$	3,842,263	$	7,403,229
International		5,106,312		4,548,536
Total	$	8,948,575	$	11,951,765