Note 4 - Property, Equipment and Leasehold Improvements (Tables)

3 Months Ended

Mar. 31, 2015

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

	Estimated useful lives	December 31,		March 31,
	(years)	2014		2015
Building	15	$	2,553	$	2,633
Computer and office equipment	3		19,160		17,126
Furniture and fixtures	3 to 5		4,274		4,425
Leasehold improvements	Lease term		4,836		4,776
			30,824		28,960
Less accumulated depreciation and amortization			15,098		12,905
Totals		$	15,726	$	16,055