Inventories (Tables)

3 Months Ended

Jun. 30, 2019

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Inventories consisted of the following:

	June 30, 2019			March 31, 2019
Ground support service parts	$	2,580,196		$	2,553,949
Ground equipment manufacturing:
Raw materials	3,017,469			2,497,876
Work in process	1,351,370			1,659,516
Finished goods	643,763			972,542
Printing equipment and maintenance
Raw materials	—			401,103
Finished goods	1,438,161			1,047,893
Commercial jet engines and parts	27,691,133			21,031,558
Total inventories	$	36,722,092		$	30,164,437
Reserves	(193,315		)	(197,400		)
Total inventories, net of reserves	$	36,528,777		$	29,967,037