Quarterly Financial Information (Unaudited) (Schedule of Quarterly Financial Information) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2015	Jun. 30, 2014
Quarterly Financial Information [Abstract]
Net sales	$ 8,970,864	$ 6,470,286	$ 5,697,083	$ 5,693,472	$ 7,096,700	$ 6,549,623	$ 6,569,641	$ 6,920,955	$ 26,831,705	$ 27,136,919
Gross profit (loss)	1,635,225	1,437,534	2,258,735	1,810,079	(239,029)	1,679,125	896,014	2,195,136	7,141,573	4,531,246
Net income (loss)	$ 546,455	$ 506,369	$ 1,219,082	$ 911,221	$ (698,204)	$ 706,030	$ 111,152	$ 1,048,907	$ 3,183,127	$ 1,167,885
Net income per share:
Basic	$ 0.24	$ 0.22	$ 0.54	$ 0.40	$ (0.31)	$ 0.31	$ 0.05	$ 0.47	$ 1.40	$ 0.52
Diluted	$ 0.23	$ 0.22	$ 0.54	$ 0.40	$ (0.31)	$ 0.31	$ 0.05	$ 0.46	$ 1.39	$ 0.51