5. Commitments and Contingencies: Contingencies (Details)	6 Months Ended						6 Months Ended
	Jun. 30, 2013 USD ($)	Jun. 30, 2012 USD ($)	Jun. 30, 2013 Alternative Currency GBP (£)	Jun. 30, 2013 Positive Outcome of Litigation USD ($)	Jun. 30, 2012 Positive Outcome of Litigation USD ($)	Jun. 30, 2013 Insurance Claims USD ($)	Jun. 30, 2013 Pending or Threatened Litigation USD ($)	Dec. 31, 2012 Pending or Threatened Litigation USD ($)
Product Liability Inurance Deductible - Range, minimum						$ 25,000
Product Liability Inurance Deductible - Range, maximum						250,000
Product Liability Contingency, Loss Exposure Not Accrued, High Estimate							3,340,000
Loss Contingency Accrual							638,000	537,000
Insurance Legal Recovery		4,700,000			4,700,000
Gain Contingency, Income Statement Caption		Insurance Legal Recovery or ILR
Loss Contingency, Range of Possible Loss, Maximum				269,000
Loss Contingency, Balance Sheet Caption				Other Long Term Assets
Payments for Legal Settlements	$ 1,300,000		£ 800,000