Note 9 - Benefit Plans (Details) - Defined Benefit Plans Information (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plans Information [Abstract]
Benefit obligation	$ 27,819,000	$ 23,897,000
Funded status at end of year	(3,617,000)	(10,468,000)
Long-term pension liability	(3,617,000)	(10,468,000)
Amounts recognized in accumulated other comprehensive income consist of:
Net actuarial loss	4,903,000	12,223,000
Prior service cost		13,000
	4,903,000	12,236,000
Service cost	364,000	595,000
Interest cost	1,016,000	1,023,000
Actuarial (gain) loss	(2,810,000)	3,469,000
Curtailment gain	(1,990,000)
Benefits paid	(2,766,000)	(1,165,000)
Fair value of plan assets	17,351,000	15,811,000
Actual return on assets	2,431,000	2,155,000
Employer contributions	1,000,000	550,000
Benefit obligation	21,633,000	27,819,000
Fair value of plan assets	$ 18,016,000	$ 17,351,000