Selected Quarterly Financial Data (Details) (USD $)	3 Months Ended												12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 17,393,000	$ 17,328,000	$ 12,519,000	$ 12,372,000	$ 20,744,000	[1]	$ 14,765,000	[1]	$ 13,229,000	[1]	$ 12,148,000	[1]	$ 59,612,000	$ 60,886,000	$ 57,379,000
Gross Profit	7,424,000	8,162,000	4,976,000	4,287,000	9,979,000	[1]	7,345,000	[1]	5,199,000	[1]	5,597,000	[1]	24,849,000	28,120,000	24,170,000
Income from Continuing Operations					3,981,000	[1],[2]	1,336,000	[1]	184,000	[1]	629,000	[1]	2,427,000	6,130,000	2,827,000
Income (loss) from discontinued operations					23,000	[1]	31,000	[1]			26,000	[1]		80,000	(3,160,000)
Net Income (Loss)	941,000	2,481,000	(407,000)	(588,000)	4,004,000	[1]	1,367,000	[1]	184,000	[1]	655,000	[1]	2,427,000	6,210,000	(333,000)
Earnings (Loss) Per Share, Basic	$ 0.10	$ 0.27	$ (0.05)	$ (0.07)	$ 0.46	[1]	$ 0.16	[1]	$ 0.02	[1]	$ 0.08	[1]	$ 0.27	$ 0.73	$ (0.04)
Earnings (Loss) Per Share, Diluted	$ 0.10	$ 0.26	$ (0.05)	$ (0.07)	$ 0.46	[1]	$ 0.16	[1]	$ 0.02	[1]	$ 0.08	[1]	$ 0.26	$ 0.72	$ (0.04)
Earnings per share from continuing operations, Basic					$ 0.46	[1]	$ 0.16	[1]	$ 0.02	[1]	$ 0.08	[1]	$ 0.27	$ 0.72	$ 0.34
Earnings per share from continuing operations, Diluted					$ 0.46	[1]	$ 0.16	[1]	$ 0.02	[1]	$ 0.08	[1]	$ 0.26	$ 0.71	$ 0.34
Gain (Loss) on Sale of Securities, Net					$ 1,100,000

[1] During the first quarter of fiscal 2013, the Company sold substantially all of the assets of its Commercial Products business unit (see Note 11). Fiscal 2013 quarters reflect the operations of the Commercial Products business unit as discontinued.

[2] In the fourth quarter of fiscal 2013, a long-term investment in preferred stock was redeemed at par resulting in a $1.1 million gain when a previous impairment charge was reversed (see Note 1)