Statements of Changes in Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Additional Paid-in Capital [Member] USD ($)	Retained Earnings [Member] USD ($)	Accumulated Other Comprehensive Income (Loss) [Member] USD ($)	Comprehensive Income [Member] USD ($)	Total USD ($)
Balance as of January 1, 2010 at Dec. 31, 2009		$ 14,042	$ (9,932)	$ (351)		$ 3,759
Balance as of January 1, 2010 (in Shares) at Dec. 31, 2009	6,626,468
Stock compensation related to options granted to Telkoor's employees		3				3
Stock compensation related to options granted to employees		82				82
Exercise of options granted to employees		58				58
Exercise of options granted to employees (in Shares)	72,500
Comprehensive income:
Net income (loss)			487		487	487
Foreign currency translation adjustments				(62)	(62)	(62)
Total comprehensive income					425
Balance at Dec. 31, 2010		14,185	(9,445)	(413)		4,327
Balance (in Shares) at Dec. 31, 2010	6,698,968
Stock compensation related to options granted to Telkoor's employees		32				32
Stock compensation related to options granted to employees		103				103
Exercise of options granted to employees		38				38
Exercise of options granted to employees (in Shares)	150,686
Comprehensive income:
Net income (loss)			1,124		1,124	1,124
Unrealized Loss on available for sale marketable securities				(473)	(473)	(473)
Foreign currency translation adjustments				(18)	(18)	(18)
Total comprehensive income					633
Balance at Dec. 31, 2011		$ 14,358	$ (8,321)	$ (904)		$ 5,133
Balance (in Shares) at Dec. 31, 2011	6,849,654