Note 5. Cash Flow Hedge (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Derivative Liability Notional Amount	$ 8,000		$ 8,000
Derivative Fixed Interest Rate	1.60%		1.60%
Derivative Liability, Fair Value, Gross Liability	340		363
Unrealized gains (losses) on cash flow hedge, net of taxes	14	(22)
Tax (benefit) on unrealized gains (losses) on cash flow hedge	9	(14)
Other Comprehensive Income (Loss)
Unrealized gains (losses) on cash flow hedge, net of taxes	14	(22)
Accounts payable, accruals and other liabilities Member
Derivative Liability, Fair Value, Gross Liability	$ 340		$ 363
Notes Payable to Banks
Long Term Debt Percentage Bearing Fixed Interest Rate	4.95%		4.95%