Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Significant Accounting Policies [Line Items]
Checks outstanding	$ 4,091,000	$ 5,313,000
Proceeds from sale of marketable securities	29,767,000	82,521,000	62,109,000
Net unrealized losses included OCI	30,000	87,000	792,000
Contractual maturities of marketable securities, within one year	5,697,000
Contractual maturities of marketable securities, beyond one year to five years	25,566,000
Contractual maturities of marketable securities, beyond five years to ten years	8,520,000
Contractual maturities of marketable securities, beyond ten years	15,803,000
Goodwill from acquisition	302,000	2,538,000
Gross carrying amount of intangibles	4,445,000	4,445,000
Accumulated amortization of intangibles	1,049,000	0
Amortization expense	1,049,000	0	0
Advertising expense	210,000	70,000	9,000
Defense Products [Member]
Significant Accounting Policies [Line Items]
Goodwill	$ 14,325,000	$ 14,023,000
Housewares/ Small Appliances [Member]
Significant Accounting Policies [Line Items]
Sales returns coverage period	60 days
Minimum [Member]
Significant Accounting Policies [Line Items]
Accounts receivable, collection period	30 days
Economic use period for intangibles	1 year
Minimum [Member] | Housewares/ Small Appliances [Member]
Significant Accounting Policies [Line Items]
Standard product warranty coverage period	1 year
Minimum [Member] | Buildings [Member]
Significant Accounting Policies [Line Items]
Useful life	15 years
Minimum [Member] | Machinery and Equipment [Member]
Significant Accounting Policies [Line Items]
Useful life	3 years
Minimum [Member] | Land Improvements [Member]
Significant Accounting Policies [Line Items]
Useful life	15 years
Maximum [Member]
Significant Accounting Policies [Line Items]
Accounts receivable, collection period	60 days
Economic use period for intangibles	9 years
Maximum [Member] | Housewares/ Small Appliances [Member]
Significant Accounting Policies [Line Items]
Standard product warranty coverage period	12 years
Maximum [Member] | Buildings [Member]
Significant Accounting Policies [Line Items]
Useful life	40 years
Maximum [Member] | Machinery and Equipment [Member]
Significant Accounting Policies [Line Items]
Useful life	10 years
Maximum [Member] | Land Improvements [Member]
Significant Accounting Policies [Line Items]
Useful life	20 years
Maximum [Member] | Variable Rate Demand Notes [Member]
Significant Accounting Policies [Line Items]
Number of days to tender securites	7 days