Note 8 - Employee Benefit Plans (Detail) - Reserved shares of Common Stock (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Reserved common stock shares	$ 1,529,839
Stock options granted but not exercised [Member]
Reserved common stock shares	42,000
Rеstrictеd stock to non-еmployееs (authorizеd but not grantеd) [Member]
Reserved common stock shares	71,061
Rеstrictеd stock to еmployееs and еxеcutivеs (authorizеd but not grantеd) [Member]
Reserved common stock shares	$ 1,416,778