Note 7. Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Three Months Ended
	June 30,
	Pension Benefits						Other Benefits
	2011			2010			2011			2010
Service cost	$	970		$	550		$	13		$	12
Interest cost		1,029			931			20			19
Expected return on plan assets		(1,371	)		(1,260	)		22			--
Amortization of prior service cost		100			150			(33	)		13
Amortization of net (gain) loss		220			217			11			(12	)
Net periodic benefit cost	$	948		$	588		$	33		$	32

	Six Months Ended
	June 30,
	Pension Benefits						Other Benefits
	2011			2010			2011			2010
Service cost	$	1,939		$	1,101		$	27		$	23
Interest cost		2,057			1,862			39			37
Expected return on plan assets		(2,741	)		(2,520	)		22			--
Amortization of prior service cost		201			301			(22	)		26
Amortization of net (gain) loss		440			433			--			(23	)
Net periodic benefit cost	$	1,896		$	1,177		$	66		$	63