5. Commitments and Contingencies: Contingencies (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Positive Outcome of Litigation
Loss Contingency, Range of Possible Loss, Maximum	$ 213,000	$ 227,000
Loss Contingency, Balance Sheet Caption	Other Long Term Assets
Insurance Claims
Product Liability Inurance Deductible - Range, minimum	25,000
Product Liability Inurance Deductible - Range, maximum	250,000
Pending or Threatened Litigation
Product Liability Contingency, Loss Exposure Not Accrued, High Estimate	4,000,000
Loss Contingency Accrual	$ 488,000	$ 686,000