Note 10 - Quarterly Results for 2011 and 2012 (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Quarterly Financial Information [Table Text Block]

		Quarter Ended
		March 31, 2011		June 30, 2011		September 30, 2011		December 31, 2011
Net sales		$	26,899,000	$	27,505,000	$	30,731,000	$	27,238,000
Gross profit		$	9,851,000	$	9,928,000	$	11,196,000	$	9,284,000
Income before taxes on income		$	939,000	$	1,432,000	$	2,600,000	$	615,000
Net income		$	599,000	$	932,000	$	1,880,000	$	725,000
Per Share Data:
Basic
	Net income	$	0.10	$	0.16	$	0.31	$	0.12
Diluted
	Net income	$	0.10	$	0.15	$	0.31	$	0.12
Average Outstanding Shares (Basic)			5,978,828		5,995,147		5,986,676		5,987,598
Average Outstanding Shares (Diluted)			6,070,970		6,092,118		6,079,430		6,137,137

		Quarter Ended
		March 31, 2012		June 30, 2012		September 30, 2012		December 31, 2012
Net sales		$	28,508,000	$	29,335,000	$	30,599,000	$	31,044,000
Gross profit		$	9,462,000	$	9,662,000	$	10,032,000	$	10,607,000
Income before taxes on income		$	537,000	$	1,567,000	$	1,692,000	$	825,000
Net income		$	327,000	$	977,000	$	1,242,000	$	485,000
Per Share Data:
Basic
	Net income	$	0.05	$	0.16	$	0.20	$	0.08
Diluted
	Net income	$	0.05	$	0.16	$	0.20	$	0.08
Average Outstanding Shares (Basic)			6,025,874		6,066,244		6,063,269		6,091,377
Average Outstanding Shares (Diluted)			6,142,616		6,140,986		6,148,012		6,140,372