Debt - Borrowing Thresholds (Details)	Jun. 30, 2013
Level I
Debt Instrument [Line Items]
Liquidity is less than or equal to at any time during the period	Liquidity ≤ $20,000 at any time during the period
Excess Availability is less than or equal to at any time during the period	Excess Availability ≤ $7,500 at any time during the period
Fixed charge coverage ratio is less than	Fixed charge coverage ratio < 1:1
Percentage points	4.00 percentage points
Level II
Debt Instrument [Line Items]
Liquidity is greater than at all times during the period	Liquidity > $20,000 at all times during the period; and Liquidity ≤ $30,000 at any time during the period; and
Excess availability is	Excess Availability ≤ $7,500 at any time during the period
Fixed charge coverage is greater than or equal to	Fixed charge coverage ratio ≥ 1:1
Percentage points	3.50 percentage points
Level III
Debt Instrument [Line Items]
Liquidity is greater than at all times during the period	Liquidity > $30,000 at all times during the period
Percentage points	3.00 percentage points