Significant Customers And Contingencies - Additional Information -BASF Supply Agreement (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013
Unusual Risk or Uncertainty [Line Items]
Events which could potentially result in the license of technology and/or the sale of production equipment	Contractual covenants that have contingencies outlined which could potentially result in the license of technology and/or the sale of production equipment from the Company to the customer intended to provide capacity sufficient to meet the customer’s production needs. This outcome may occur if we fail to meet certain performance requirements, certain other obligations and/or certain financial condition covenants. The financial condition covenants in one of our supply agreements with BASF “trigger” a technology transfer right (license and equipment sale at BASF’s option) in the event (a) that earnings of the twelve month period ending with our most recently published quarterly financial statements are less than zero and our cash, cash equivalents and certain investments are less than $1,000,000, or (b) of an acceleration of any debt maturity having a principal amount of more than $10,000,000.
Options for the sale of property plant and equipment	In the event of an equipment sale, upon incurring a triggering event, the equipment would be sold to the customer at either 115% of the equipment’s net book value, or the greater of 30% of the original book value of such equipment, and any associated upgrades to it, or 115% of the equipment’s net book value.
Scenario, Option One [Member]
Unusual Risk or Uncertainty [Line Items]
Minimum contractual covenant - net earnings previous twelve months	$ 0
Minimum contractual covenant - cash and cash equivalents	1,000,000
Scenario, Option Two [Member]
Unusual Risk or Uncertainty [Line Items]
Maximum contractual covenant - principal amount of debt with an accelerated maturity date	$ 10,000,000
Option One [Member]
Unusual Risk or Uncertainty [Line Items]
Property plant and equipment sale percent of carrying value	30.00%
Option Two [Member]
Unusual Risk or Uncertainty [Line Items]
Property plant and equipment sale percent of net book value	115.00%