8. Income Taxes: Schedule of income tax expense vs. statutory income tax expense (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Computed 'Statutory' Income Tax Expense	$ 3,693	$ 2,292
State Income Tax, Net of Federal Tax Benefit	296	145
Foreign Tax Rate Differential	168	55
Manufacturing Deduction	(180)	(141)
Reduction in Tax Uncertainties	(16)	(149)
Other - Net	85	(95)
Income Tax Provision	$ 4,046	$ 2,107