Note 8 - Employee Benefit Plans (Detail) - Changes in Plan Assets and Benefit Obligations in Other Comprehensive Income (loss) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012	Jun. 30, 2011
Defined Benefit Retirment Plan [Member]
Net actuarial (loss) gain	$ (1,153)	$ 265	$ 1,121
Settlement losses		228
Recognized net actuarial gain	11	90	136
Total other comprehensive income (loss)	(1,142)	583	1,257
Post Retirment Benefit Plan [Member]
Net actuarial (loss) gain	134	(768)	1,634
Recognized net actuarial gain			88
Prior service cost recognized due to negative plan adjustment		1,165
Prior service cost recognized due to curtailments		(79)
Amortization of prior service cost	(9)	(227)	(17)
Total other comprehensive income (loss)	$ 125	$ 91	$ 1,705