Note 6 - Inventories (Tables)

9 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	December 31, 2017			March 31, 2017
Ground support service parts	$	2,534,770		$	2,447,395
Ground equipment manufacturing:
Raw materials		3,018,153			1,452,201
Work in process		2,203,132			832,635
Finished goods		2,747,129			10,001,193
Printing equipment and maintenance
Raw materials		2,737,534			3,325,142
Work in process		-			324,949
Finished goods		599,579			790,345
Commercial jet engines and parts		8,167,600			3,407,339
Total inventories		22,007,897			22,581,199
Reserves		(2,340,692	)		(2,802,356	)
Total, net of reserves	$	19,667,205		$	19,778,843