Note 4 - Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Computer Software, Intangible Asset [Member]
Capitalized Internal Software, Amount			$ 1,111
Finite-Lived Intangible Assets, Amortization Expense, Year Three	$ 1,030		1,030
Amortization of Intangible Assets	211	$ 166	387	$ 335
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	871		871
Finite-Lived Intangible Assets, Amortization Expense, Year Two	1,030		1,030
Finite-Lived Intangible Assets, Amortization Expense, Year Four	1,001		1,001
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 969		$ 969