Note 1. Principal Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

(Dollars in thousands, except per share data)	Three Months Ended March 31,
	2014		2013
Numerator:
Net income	$	12,893	$	14,005
Denominator:
Weighted-average common shares outstanding	56,957,433		56,096,637
Stock options and nonvested stock	582,635		635,335
	57,540,068		56,731,972
Diluted Earnings per Share	$	0.22	$	0.25
Anti-dilutive stock options excluded from the computation of diluted EPS	899,241		1,141,137