BUSINESS SEGMENTS (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Revenues from unaffiliated customers	$ 19,476,000	$ 15,241,000	$ 40,185,000	$ 29,558,000
Segment operating income	2,964,000	2,419,000	5,492,000	4,842,000
General corporate expense	(1,442,000)	(1,463,000)	(2,868,000)	(3,015,000)
Interest expense - net	(118,000)	(133,000)	(227,000)	(275,000)
Earnings before income taxes	1,404,000	823,000	2,397,000	1,552,000
Segment assets	54,422,000	44,561,000	54,422,000	44,561,000
Corporate assets	4,236,000	2,679,000	4,236,000	2,679,000
Total assets	58,658,000	47,240,000	58,658,000	47,240,000	55,157,000
Long-lived assets	17,384,000	17,816,000	17,384,000	17,816,000
Tool [Member]
Revenues from unaffiliated customers	13,221,000	9,673,000	28,850,000	19,345,000
Segment operating income	1,740,000	1,303,000	3,454,000	3,032,000
Segment assets	40,377,000	33,122,000	40,377,000	33,122,000
Long-lived assets	12,887,000	13,139,000	12,887,000	13,139,000
Hardware [Member]
Revenues from unaffiliated customers	6,255,000	5,568,000	11,335,000	10,213,000
Segment operating income	1,224,000	1,116,000	2,038,000	1,810,000
Segment assets	14,045,000	11,439,000	14,045,000	11,439,000
Long-lived assets	$ 4,484,000	$ 4,636,000	$ 4,484,000	$ 4,636,000