Segment Information (Details) (USD $)	3 Months Ended								12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Segment Reporting Information [Line Items]
Net sales	$ 10,133,000	$ 9,210,000	$ 9,921,000	$ 9,287,000	$ 10,667,000	$ 10,702,000	$ 10,681,000	$ 11,395,000	$ 38,551,774	$ 43,445,621	$ 46,783,436
Domestic United States [Member]
Segment Reporting Information [Line Items]
Net sales									29,180,042	33,816,317	37,634,627
Canada [Member]
Segment Reporting Information [Line Items]
Net sales									673,011	603,530	668,430
Europe [Member]
Segment Reporting Information [Line Items]
Net sales									1,421,347	1,510,197	1,721,779
Latin America [Member]
Segment Reporting Information [Line Items]
Net sales									4,113,201	4,883,288	3,427,960
Middle East [Member]
Segment Reporting Information [Line Items]
Net sales									1,228,318	925,658	911,401
Far East [Member]
Segment Reporting Information [Line Items]
Net sales									1,841,771	1,594,172	2,296,635
Other International [Member]
Segment Reporting Information [Line Items]
Net sales									$ 94,084	$ 112,459	$ 122,604