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