Segment Information (Details) - USD ($)	3 Months Ended								12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Net sales	$ 9,803,000	$ 8,840,000	$ 8,846,000	$ 8,463,000	$ 9,114,000	$ 8,503,000	$ 9,000,000	$ 8,845,000	$ 35,952,487	$ 35,461,769	$ 36,370,616
Domestic United States [Member]
Segment Reporting Information [Line Items]
Net sales									27,437,238	27,304,353	27,214,060
Europe [Member]
Segment Reporting Information [Line Items]
Net sales									773,129	639,641	858,735
Canada [Member]
Segment Reporting Information [Line Items]
Net sales									916,528	769,749	758,392
Latin America [Member]
Segment Reporting Information [Line Items]
Net sales									3,168,891	3,343,361	4,291,530
Middle East [Member]
Segment Reporting Information [Line Items]
Net sales									843,092	911,241	1,214,389
Far East [Member]
Segment Reporting Information [Line Items]
Net sales									2,803,451	2,466,614	2,011,714
Other International [Member]
Segment Reporting Information [Line Items]
Net sales									$ 10,158	$ 26,810	$ 21,796