11. Commitments and Contingencies: Contingencies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Insurance Legal Recovery	$ 4,700
Other Liabilities	4,214	2,143
Omega Flex Limited
Other Liabilities	1,300
Positive Outcome of Litigation
Insurance Legal Recovery	4,700
Gain Contingency, Income Statement Caption	Insurance Legal Recovery
Loss Contingency, Range of Possible Loss, Maximum	312
Loss Contingency, Balance Sheet Caption	Other Long Term Assets
Insurance Claims
Product Liability Inurance Deductible - Range, minimum	25
Product Liability Inurance Deductible - Range, maximum	250
Pending or Threatened Litigation
Product Liability Contingency, Loss Exposure Not Accrued, High Estimate	2,200
Loss Contingency Accrual, at Carrying Value	$ 537	$ 414