Note 7 - Inventories (Tables)

12 Months Ended

Mar. 31, 2019

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	Year Ended March 31,
	2019			2018
Ground support service parts	$	2,553,949		$	2,518,942
Ground equipment manufacturing:
Raw materials		2,497,876			3,314,676
Work in process		1,659,516			20,089
Finished goods		972,542			1,768,897
Printing equipment and maintenance:
Raw materials		401,103			1,161,410
Finished goods		1,047,893			553,847
Commercial jet engines and parts		21,031,558			25,452,022
Total inventories		30,164,437			34,789,883
Reserves		(197,400	)		(558,878	)
Total, net of reserves	$	29,967,037		$	34,231,005