Note 8 - Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Unrealized gains and losses on available-for-sale securities
	(in thousands)
Balance at January 1, 2013, net of tax of $2,592	$	4,235
Other comprehensive income before reclassifications, net of tax of $1,298		2,122
Amounts reclassified from accumulated other comprehensive income, net of tax of $(120)		(197	)
Net other comprehensive income		1,925
Balance at December 31, 2013, net of tax of $3,770		6,160
Other comprehensive income before reclassifications, net of tax of $533		871
Amounts reclassified from accumulated other comprehensive income, net of tax of $(385)		(629	)
Net other comprehensive income		242
Balance at December 31, 2014, net of tax of $3,918	$	6,402

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

Details about Accumulated Other	Amounts Reclassified from Accumulated Other Comprehensive Income (a)						Statement of Operations
Comprehensive Income Component	2014			2013			Classification
	(in thousands)
Unrealized gains and losses on available-for-sale securities:
Realized gain on sale of securities	$	1,015		$	346		Non-operating income
Impairment expense		(1	)		(29	)	Non-operating income
Total before tax		1,014			317		Income before income taxes
Tax expense		(385	)		(120	)	Income tax expense
Total after tax	$	629		$	197		Net income