Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following table summarizes the Company's assets and liabilities that are measured at fair value on a recurring basis, the amounts on the consolidated balance sheets as of March 31, 2013 and December 31, 2012 and the activity in those assets and liabilities that are valued using Level 3 measurements.

	Asset (Liability) as of March 31, 2013
(in thousands)	Total			Level 1		Level 2			Level 3
Investment in associated company	$	19,606		$	19,606	$	—		$	—
Commodity contracts on precious metals	$	88		$	88	$	—		$	—
Interest rate swap agreement	$	(277	)	$	—	$	(277	)	$	—

	Asset (Liability) as of December 31, 2012
	Total		Level 1		Level 2			Level 3
Investment in associated company	$	17,229	$	17,229	$	—		$	—
Commodity contracts on precious metals	$	100	$	127	$	(27	)	$	—
Derivative features of Subordinated Notes	$	793	$	—	$	—		$	793

Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] [Table Text Block]

(in thousands)	Three Months Ended
Activity	March 31, 2013
Beginning balance	$	793
Total net gains (losses) included in:
Net income	(793		)
Other comprehensive income	—
Purchases	—
Issuances	—
Sales	—
Settlements	—
Net transfers into / (out of) Level 3	—
Ending balance	$	—