Note 13 - Segment Customers and Geographical Information (Detail) - Segment Reporting (USD $) In Thousands, unless otherwise specified	12 Months Ended			36 Months Ended	12 Months Ended	36 Months Ended	12 Months Ended	36 Months Ended	12 Months Ended	36 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011 DPC [Member]	Dec. 31, 2012 DPC [Member]	Dec. 31, 2011 DPL [Member]	Dec. 31, 2012 DPL [Member]	Dec. 31, 2011 Intersegment Elimination [Member]	Dec. 31, 2012 Intersegment Elimination [Member]	Dec. 31, 2011 Total [Member]	Dec. 31, 2012 Total [Member]
Revenues	$ 8,589	$ 11,231	$ 6,577	$ 5,077	$ 4,654	$ 3,512			$ 11,231	$ 8,589
Intersegment revenues			384	560	15	55	(399)	(615)
Total revenues			6,961	5,637	4,669	3,567	(399)	(615)	11,231	8,589
Depreciation expense	111	73	30	57	141	151			171	208
Operating income (loss)	(94)	1,157	679	(222)	478	128			1,157	(94)
Financial expenses, net									8
Other expense, net	(233)	8								(233)
Income taxes	2	41							41	2
Net income (loss)	(329)	1,124							1,124	(329)
Expenditures for segment assets			107	100	163	54			270	154
Identifiable assets			$ 4,143	$ 3,878	$ 3,206	$ 3,054			$ 7,349	$ 6,932