Quarterly Financial Data (Details) (USD $)	3 Months Ended								12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Net sales	$ 10,667,000	$ 10,702,000	$ 10,681,000	$ 11,395,000	$ 12,102,000	$ 11,338,000	$ 11,403,000	$ 11,941,000	$ 43,445,621	$ 46,783,436	$ 46,034,248
Gross profit	2,495,000	2,325,000	2,735,000	2,406,000	3,034,000	2,608,000	2,810,000	2,551,000	9,961,109	11,002,779	11,089,534
Income (loss) from operations	(232,000)	(231,000)	41,000	(228,000)	220,000	114,000	209,000	(134,000)	(649,749)	408,910	(782,224)
Net income (loss)	$ (156,000)	$ (146,000)	$ 23,000	$ (145,000)	$ 115,000	$ 60,000	$ 117,000	$ (88,000)	$ (424,426)	$ 204,408	$ (599,573)
Basic earnings (loss) per share (in dollars per share)	$ (0.02)	$ (0.02)	$ 0.00	$ (0.02)	$ 0.01	$ 0.01	$ 0.01	$ (0.01)	$ (0.05)	$ 0.03	$ (0.07)
Diluted earnings (loss) per share (in dollars per share)	$ (0.02)	$ (0.02)	$ 0.00	$ (0.02)	$ 0.01	$ 0.01	$ 0.01	$ (0.01)	$ (0.05)	$ 0.03	$ (0.07)