Commitments and Contingencies (Narrative) (Details) - Jun. 30, 2015	USD ($) ft² Quantity	USD ($) ft² Quantity
Long-term Purchase Commitment [Line Items]
New Operating Lease Square Feet | ft²	16,085	16,085
Purchase commitments	$ 41,900,000
Manufacturing and Service Agreement as Part of Asset Acquisition
Long-term Purchase Commitment [Line Items]
Purchase obligation, term		5 years
Minimum margin to be paid		$ 25,000,000
Purchase commitments	$ 15,800,000
Standby Letters of Credit
Long-term Purchase Commitment [Line Items]
Number of irrevocable standby letters of credit | Quantity	5	5
Line of credit facility, maximum borrowing capacity	$ 6,400,000	$ 6,400,000
Long-term Line of Credit	0	0
Pending Litigation
Long-term Purchase Commitment [Line Items]
Loss Contingency Accrual	$ 0	$ 0