Note 15 - Segment Customers and Geographical Information (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Year Ended December 31, 2016
	DPC			DPL			Eliminations			Total
Revenues	$	4,552		$	3,044		$	-		$	7,596
Inter-segment revenues		145			-			(145	)		-
Total revenues	$	4,697		$	3,044		$	(145	)	$	7,596
Depreciation and amortization expenses	$	75		$	86		$	-		$	161
Operating income (loss)	$	(1,110	)	$	(109	)	$	-		$	(1,219	)
Other income, net											77
Income taxes											20
Net loss										$	(1,122	)
Capital expenditures for segment assets for the year ended December 31, 2016	$	32		$	53		$	-		$	85
Identifiable assets as of December 31, 2016	$	3,152		$	2,320		$	-		$	5,472

	Year Ended December 31, 201 5
	DPC			DPL		Eliminations			Total
Revenues	$	3,833		$	3,933	$	-		$	7,766
Inter-segment revenues		371			-		(371	)		-
Total revenues	$	4,204		$	3,933	$	(371	)	$	7,766
Depreciation and amortization expenses	$	74		$	139	$	-		$	213
Operating income (loss)	$	(1,086	)	$	83	$	-		$	(1,003	)
Impairment of investment										(110	)
Other income, net										16
Income taxes										1
Net loss									$	(1,096	)
Capital expenditures for segment assets for the year ended December 31, 2015	$	58		$	248	$	-		$	306
Identifiable assets as of December 31, 2015	$	2,384		$	2,715	$	-		$	5,099

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

For the year ended December 31,2016
	Total Revenues by Major Customers (in thousands)		Percentage of Total Company Revenues
Customer A	$	1,328		17	%
Customer B	$	750		10	%

For the year ended December 31,2015
	Total Revenues by Major Customers (in thousands)		Percentage of Total Company Revenues
Customer A	$	853		11	%
Customer B	$	1,809		23	%

Revenue from External Customers by Products and Services [Table Text Block]

	2016		2015
Revenues:
Commercial products	$	5,307	$	4,802
Defense products		2,289		2,964
Total revenues	$	7,596	$	7,766

Revenue from External Customers by Geographic Areas [Table Text Block]

	2016		2015
North America	$	4,541	$	3,435
Europe (including UK)		1,845		1,704
Asia		255		768
Australia		123		42
South America		81		3
South Korea		751		1,814
Total revenues	$	7,596	$	7,766