Business Segments (Detail Textuals) (USD $)	12 Months Ended
	Dec. 31, 2012 Segment	Dec. 31, 2011
Segment Reporting Information [Line Items]
Number of Operating Segments	2
Total identifiable assets	$ 29,303,000	$ 30,423,000
Consolidated revenues from continuing operations	30,510,000	32,899,000
Major customer, Description	More than 10%
Customer One | Sales revenue
Segment Reporting Information [Line Items]
Percentage of total consolidated sales revenue	27.00%	26.00%
Customer Two | Sales revenue
Segment Reporting Information [Line Items]
Percentage of total consolidated sales revenue	10.00%	10.00%
Advanced Technology Group
Segment Reporting Information [Line Items]
Total identifiable assets	19,211,000	18,004,000
Consolidated revenues from continuing operations	22,000,000	21,816,000
Consumer Products Group
Segment Reporting Information [Line Items]
Total identifiable assets	10,092,000	12,419,000
Consolidated revenues from continuing operations	8,510,000	11,083,000
Continuing Operations | Advanced Technology Group
Segment Reporting Information [Line Items]
Consolidated revenues from continuing operations	6,000,000	6,300,000
Continuing Operations | Consumer Products Group
Segment Reporting Information [Line Items]
Consolidated revenues from continuing operations	$ 2,750,000	$ 6,900,000