Note 3 - Stock-Based Compensation (Details) - Restricted Stock Award Forfeitures (2008 Restricted Stock Award [Member], USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Vested on April 1, 2011 [Member]
Note 3 - Stock-Based Compensation (Details) - Restricted Stock Award Forfeitures [Line Items]
Date Deemed Forfeited and Recorded as Treasury Stock	Sep. 30, 2010
Shares Forfeited	9,000
Expense Recovered	$ 70
Date Shares Returned to Plan	Apr. 01, 2011
Vested on April 1, 2012 [Member]
Note 3 - Stock-Based Compensation (Details) - Restricted Stock Award Forfeitures [Line Items]
Date Deemed Forfeited and Recorded as Treasury Stock	Sep. 30, 2011
Shares Forfeited	8,000
Expense Recovered	66
Date Shares Returned to Plan	Apr. 01, 2012
Vested on April 1, 2013 [Member]
Note 3 - Stock-Based Compensation (Details) - Restricted Stock Award Forfeitures [Line Items]
Date Deemed Forfeited and Recorded as Treasury Stock	Sep. 30, 2011
Shares Forfeited	15,000
Expense Recovered	101
Date Shares Returned to Plan	Apr. 01, 2013
To Vest on April 1, 2014 [Member]
Note 3 - Stock-Based Compensation (Details) - Restricted Stock Award Forfeitures [Line Items]
Date Deemed Forfeited and Recorded as Treasury Stock	Feb. 28, 2013
Shares Forfeited	9,000
Expense Recovered	78
Date Shares Returned to Plan	Apr. 01, 2014
To Vest on April 1, 2015 [Member]
Note 3 - Stock-Based Compensation (Details) - Restricted Stock Award Forfeitures [Line Items]
Date Deemed Forfeited and Recorded as Treasury Stock	Feb. 28, 2013
Shares Forfeited	9,000
Expense Recovered	65
Date Shares Returned to Plan	Apr. 01, 2015
To Vest on April 1, 2016 [Member]
Note 3 - Stock-Based Compensation (Details) - Restricted Stock Award Forfeitures [Line Items]
Date Deemed Forfeited and Recorded as Treasury Stock	Feb. 28, 2013
Shares Forfeited	9,000
Expense Recovered	56
Date Shares Returned to Plan	Apr. 01, 2016
To Vest on April 1, 2017 [Member]
Note 3 - Stock-Based Compensation (Details) - Restricted Stock Award Forfeitures [Line Items]
Date Deemed Forfeited and Recorded as Treasury Stock	Dec. 31, 2013
Shares Forfeited	7,000
Expense Recovered	$ 44
Date Shares Returned to Plan	Apr. 01, 2017