Note 12 - Related Party Transactions (Details) - Result of Operations from Transactions with Telkoor (Telkoor [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Telkoor [Member]
Related Party Transaction [Line Items]
Purchases of products from Telkoor	$ 868	$ 1,381

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

No definition available.

Name:	us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration