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Note 3 - Acquisitions (Detail) - Purchase Price Allocations (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2009
Preliminary Purchase Price Allocation [Member]
Abeton [Member]
Customer Relationships [Member]
Dec. 31, 2009
Preliminary Purchase Price Allocation [Member]
Abeton [Member]
Trade Names [Member]
Dec. 31, 2009
Preliminary Purchase Price Allocation [Member]
Abeton [Member]
Noncompete Agreements [Member]
Dec. 31, 2009
Preliminary Purchase Price Allocation [Member]
Abeton [Member]
Unpatented Technology [Member]
Dec. 31, 2009
Preliminary Purchase Price Allocation [Member]
Abeton [Member]
Dec. 31, 2009
Preliminary Purchase Price Allocation [Member]
Other 2009 Acquisitions [Member]
Customer Relationships [Member]
Dec. 31, 2009
Preliminary Purchase Price Allocation [Member]
Other 2009 Acquisitions [Member]
Trade Names [Member]
Dec. 31, 2009
Preliminary Purchase Price Allocation [Member]
Other 2009 Acquisitions [Member]
Noncompete Agreements [Member]
Dec. 31, 2009
Preliminary Purchase Price Allocation [Member]
Other 2009 Acquisitions [Member]
Unpatented Technology [Member]
Dec. 31, 2009
Preliminary Purchase Price Allocation [Member]
Other 2009 Acquisitions [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Metro Medical [Member]
Customer Relationships [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Metro Medical [Member]
Trade Names [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Metro Medical [Member]
Noncompete Agreements [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Metro Medical [Member]
Unpatented Technology [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Metro Medical [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Direct IME [Member]
Customer Relationships [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Direct IME [Member]
Trade Names [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Direct IME [Member]
Noncompete Agreements [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Direct IME [Member]
Unpatented Technology [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Direct IME [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Verity [Member]
Customer Relationships [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Verity [Member]
Trade Names [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Verity [Member]
Noncompete Agreements [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Verity [Member]
Unpatented Technology [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Verity [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
UKIM [Member]
Customer Relationships [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
UKIM [Member]
Trade Names [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
UKIM [Member]
Noncompete Agreements [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
UKIM [Member]
Unpatented Technology [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
UKIM [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Other 2010 Acquisitions [Member]
Customer Relationships [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Other 2010 Acquisitions [Member]
Trade Names [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Other 2010 Acquisitions [Member]
Noncompete Agreements [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Other 2010 Acquisitions [Member]
Unpatented Technology [Member]
Dec. 31, 2010
Preliminary Purchase Price Allocation [Member]
Other 2010 Acquisitions [Member]
Dec. 31, 2009
Purchase Price Adjustments and Reclassifications [Member]
Abeton [Member]
Dec. 31, 2009
Purchase Price Adjustments and Reclassifications [Member]
Other 2009 Acquisitions [Member]
Dec. 31, 2010
Purchase Price Adjustments and Reclassifications [Member]
Verity [Member]
Dec. 31, 2010
Purchase Price Adjustments and Reclassifications [Member]
UKIM [Member]
Dec. 31, 2010
Purchase Price Adjustments and Reclassifications [Member]
Other 2010 Acquisitions [Member]
Dec. 31, 2009
Final Purchase Price Allocation [Member]
Abeton [Member]
Customer Relationships [Member]
Dec. 31, 2009
Final Purchase Price Allocation [Member]
Abeton [Member]
Trade Names [Member]
Dec. 31, 2009
Final Purchase Price Allocation [Member]
Abeton [Member]
Noncompete Agreements [Member]
Dec. 31, 2009
Final Purchase Price Allocation [Member]
Abeton [Member]
Unpatented Technology [Member]
Dec. 31, 2009
Final Purchase Price Allocation [Member]
Abeton [Member]
Dec. 31, 2009
Final Purchase Price Allocation [Member]
Other 2009 Acquisitions [Member]
Customer Relationships [Member]
Dec. 31, 2009
Final Purchase Price Allocation [Member]
Other 2009 Acquisitions [Member]
Trade Names [Member]
Dec. 31, 2009
Final Purchase Price Allocation [Member]
Other 2009 Acquisitions [Member]
Noncompete Agreements [Member]
Dec. 31, 2009
Final Purchase Price Allocation [Member]
Other 2009 Acquisitions [Member]
Unpatented Technology [Member]
Dec. 31, 2009
Final Purchase Price Allocation [Member]
Other 2009 Acquisitions [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Metro Medical [Member]
Customer Relationships [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Metro Medical [Member]
Trade Names [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Metro Medical [Member]
Noncompete Agreements [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Metro Medical [Member]
Unpatented Technology [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Metro Medical [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Direct IME [Member]
Customer Relationships [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Direct IME [Member]
Trade Names [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Direct IME [Member]
Noncompete Agreements [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Direct IME [Member]
Unpatented Technology [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Direct IME [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Verity [Member]
Customer Relationships [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Verity [Member]
Trade Names [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Verity [Member]
Noncompete Agreements [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Verity [Member]
Unpatented Technology [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Verity [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
UKIM [Member]
Customer Relationships [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
UKIM [Member]
Trade Names [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
UKIM [Member]
Noncompete Agreements [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
UKIM [Member]
Unpatented Technology [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
UKIM [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Other 2010 Acquisitions [Member]
Customer Relationships [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Other 2010 Acquisitions [Member]
Trade Names [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Other 2010 Acquisitions [Member]
Noncompete Agreements [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Other 2010 Acquisitions [Member]
Unpatented Technology [Member]
Dec. 31, 2010
Final Purchase Price Allocation [Member]
Other 2010 Acquisitions [Member]
Dec. 31, 2008
Abeton [Member]
Dec. 31, 2009
Other 2009 Acquisitions [Member]
Dec. 31, 2010
Metro Medical [Member]
Dec. 31, 2010
Direct IME [Member]
Dec. 31, 2010
Verity [Member]
Dec. 31, 2010
UKIM [Member]
Dec. 31, 2010
Other 2010 Acquisitions [Member]
Equipment and leasehold improvements         $ 124         $ 258         $ 186         $ 34         $ 46         $ 152         $ 792                   $ 124         $ 258         $ 186         $ 34         $ 46         $ 152         $ 792              
Intangible Assets 3,525 1,072 46 99   10,320 3,043 851 1,289   4,715 1,458 66 100   5,416 720 33 48   6,063 1,036 51 83   3,238 1,704 107 5   24,814 5,984 242 1,219             3,525 1,072 46 99   10,320 3,043 851 1,289   4,715 1,458 66 100   5,416 720 33 48   6,063 1,036 51 83   3,238 1,704 107 5   24,814 5,984 242 1,219                
Goodwill         4,340         9,622         5,601         5,708         6,160         2,895         37,513 13 (316) 14 1,487 298         4,353         9,306         5,601         5,708         6,174         4,382         37,811              
Net deferred tax (liability) asset associated with step-up in book basis         224         (280)         680         815         12         1,163         (2,540)   376 8 826 212         224         96         680         815         20         1,989         (2,328)              
Assets acquired and liabilities assumed, net         224         1,008         682         855         540         6,358         2,294 (86) 40 (22) (1,940) (598)         138         1,048         682         855         518         4,418         1,696              
Totals         $ 9,654         $ 26,111         $ 13,488         $ 13,629         $ 13,991         $ 15,622         $ 70,318 $ (73) $ 100   $ 373 $ (88)         $ 9,581         $ 26,211         $ 13,488         $ 13,629         $ 13,991         $ 15,995         $ 70,230 $ 9,600 $ 26,200 $ 13,500 $ 13,600 $ 14,000 $ 16,000 $ 70,200