Significant Accounting Policies (Schedule of Net Sales by Product Line) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Product Information [Line Items]
Net sales	$ 40,286	$ 48,460	$ 42,887	$ 49,135	$ 47,150	$ 61,360	$ 67,866	$ 74,614	$ 180,768	$ 250,990	$ 252,596
Stainless Steel [Member]
Product Information [Line Items]
Net sales									137,383	195,315	202,000
Tool Steel [Member]
Product Information [Line Items]
Net sales									18,112	20,420	21,963
High-Strength Low Alloy Steel [Member]
Product Information [Line Items]
Net sales									17,894	21,897	17,532
High-Temperature Alloy Steel [Member]
Product Information [Line Items]
Net sales									4,277	7,787	6,809
Conversion Services and Other [Member]
Product Information [Line Items]
Net sales									$ 3,102	$ 5,571	$ 4,292