Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Property, Plant and Equipment [Table Text Block]

			Accumulated
			Depreciation and		Carrying
	Cost		Amortization		Value
December 31, 2014:	(Dollars in thousands)
Airplane	$	28,997	$	7,152	$	21,845
Computer software and equipment		20,594		14,084		6,510
Leasehold improvements		9,617		7,590		2,027
Other		1,989		1,880		109
Total	$	61,197	$	30,706	$	30,491
December 31, 2013:
Airplane	$	28,997	$	6,604	$	22,393
Computer software and equipment		18,436		11,780		6,656
Leasehold improvements		8,793		6,787		2,006
Other		2,048		1,855		193
Total	$	58,274	$	27,026	$	31,248