NOTE 5 - SEGMENT INFORMATION (Details) - Schedule of Reconciliation of Operating Profit (Loss) from Segments to Consolidated - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue	$ 21,053	$ 27,170	$ 44,155	$ 54,068
Gross profit	4,609	5,790	8,731	11,874
SG&A	3,555	4,246	7,559	8,365
Operating income (loss)	1,054	1,544	1,172	3,509
Other income (expense)			645	123
Interest expense, net	(44)	(11)	(66)	(43)
Tax expense	(60)	(106)	(152)	(181)
Net income	$ 976	$ 1,591	1,599	3,408
Engineering and Construction [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue			26,229	25,392
Gross profit			4,132	4,678
SG&A			1,463	2,014
Operating income (loss)			2,669	2,664
Automation Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue			17,926	28,676
Gross profit			4,599	7,196
SG&A			1,285	1,415
Operating income (loss)			3,314	5,781
Corporate Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenue			0	0
Gross profit			0	0
SG&A			4,811	4,936
Operating income (loss)			$ (4,811)	$ (4,936)