Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities :
Net income (loss)	$ (329)	$ 1,124
Adjustments required to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	111	73
Amortization of intangible asset	97	96
Inventory write-down	16	36
Impairment of investment in Telkoor	218
Stock compensation related to options granted to employees	132	103
Stock compensation related to options granted to Telkoor's employees and other non-employee consultants	(10)	32
Decrease in trade receivables, net	472	567
Decrease (increase) in prepaid expenses and other receivables	(42)	86
Decrease (increase) in inventories	355	(611)
Decrease in accounts payable and trade payables - related parties	(427)	(378)
Decrease in advances from customers, deferred revenues and other current liabilities	(406)	(286)
Net cash provided by operating activities	197	842
Cash flows from investing activities :
Purchase of Telkoor shares		(1,007)
Purchase of property and equipment	(154)	(270)
Net cash used in investing activities	(154)	(1,277)
Cash flows from financing activities :
Purchase of treasury stock	(14)
Proceeds from exercise of options		38
Net cash provided by financing activities	(14)	38
Effect of exchange rate changes on cash and cash equivalents	15	59
Increase (decrease) in cash and cash equivalents	44	(338)
Cash and cash equivalents at the beginning of the year	1,777	2,115
Cash and cash equivalents at the end of the year	1,821	1,777
Income taxes paid	2	41
Unrealized (gain) loss on available for sale marketable (Telkoor)	(473)	473
Employees (Member)
Adjustments required to reconcile net income to net cash provided by operating activities:
Stock compensation related to options granted to employees	$ 142	$ 103