Note 4 - Property and Equipment (Details) - Summary of Property and Equipment (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Furniture and equipment	$ 4,675	$ 4,015
Computer equipment and software	20,055	18,569
Building	9,577	9,322
Land	425	425
	34,732	32,331
Less accumulated depreciation and amortization	22,589	20,433
Net property and equipment	12,143	11,898
Assets under capital lease	822	566
Less accumulated amortization	414	294
Net assets under capital lease	408	272
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Assets under capital lease	767	519
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Assets under capital lease	$ 55	$ 47