Note 6 - Inventories (Tables)

3 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	June 30, 2017			March 31, 2017
Ground support service parts	$	2,650,656		$	2,447,395
Ground equipment manufacturing:
Raw materials		2,020,072			1,452,201
Work in process		1,151,890			832,635
Finished goods		10,008,599			10,001,193
Printing equipment and maintenance
Raw materials		2,869,180			3,325,142
Work in process		204,022			324,949
Finished goods		790,344			790,345
Commercial jet engines and parts		8,258,858			3,407,339
Total inventories		27,953,621			22,581,199
Reserves		(2,601,245	)		(2,802,356	)
Total, net of reserves	$	25,352,376		$	19,778,843