CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (unaudited) [Abstract]
Net sales	$ 7,509,000	$ 8,284,000	$ 13,671,000	$ 15,096,000
Cost of sales	4,675,000	4,968,000	8,450,000	8,853,000
Gross profit	2,834,000	3,316,000	5,221,000	6,243,000
Selling, general and administrative expenses	2,575,000	2,387,000	5,172,000	4,755,000
Costs related to non-renewal of senior officer contract	0	0	1,194,000	0
Interest expense	36,000	53,000	70,000	106,000
Investment and other income, net	(4,000)	(71,000)	(97,000)	(105,000)
(Loss) income before income tax provision	227,000	947,000	(1,118,000)	1,487,000
Income tax provision	28,000	30,000	58,000	46,000
NET (LOSS) INCOME	199,000	917,000	(1,176,000)	1,441,000
Other Comprehensive Income: change in unrealized gains and (losses) on marketable securities, net of income tax	2,000	(28,000)	17,000	(24,000)
Comprehensive (loss) income	$ 201,000	$ 889,000	$ (1,159,000)	$ 1,417,000
Net (loss) income per common share:
Basic (in dollars per share)	$ 0.04	$ 0.20	$ (0.26)	$ 0.31
Diluted (in dollars per share)	$ 0.04	$ 0.20	$ (0.26)	$ 0.31