Restatement and Revision of Unaudited Condensed Consolidated Financial Statements - Additional Information (Detail) (USD $)	3 Months Ended								3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012	Dec. 31, 2012		Mar. 31, 2013 Embedded Derivative Financial Instruments	Mar. 31, 2013 Private Placement Embedded Derivative Financial Instruments	Apr. 27, 2012 Private Placement Embedded Derivative Financial Instruments	Mar. 31, 2013 Classification Corrections	Mar. 31, 2013 Corrections	Mar. 31, 2013 Corrections Over Statement	Mar. 31, 2013 Corrections Under Statement	Mar. 31, 2013 Corrections Optical Components Business Units	Mar. 31, 2013 Penalty Payment Derivative	Dec. 31, 2012 Penalty Payment Derivative
Registration tax amount expenses for acquisition													$ 500,000
Real Estate Tax Expense													800,000
Goodwill										(2,188,000)			(2,188,000)
Unrecorded liabilities related to purchase of property, plant and equipment													300,000
Unrecorded warranty obligations													100,000
Inventory adjustments													200,000
Long term assets related to pension obligation										2,100,000
Long-term debt, net of current portion	42,170,000	[1]		17,167,000	[2]					1,750,000
Cost of goods sold	44,306,000	[3]	42,817,000						100,000	(27,000)
Accounts payable	2,126,000	[4]	584,000						(1,700,000)	(1,888,000)
Accrued and other liabilities	280,000	[4]	(184,000)						1,700,000	1,742,000
Repayment of bank loans	(8,610,000)	[4]	(1,250,000)							13,557,000
Proceeds from bank loans	(26,443,000)	[4]								13,557,000
Costs Incurred, asset retirement obligation Incurred											300,000	200,000
Amount payable to vendor for cost of goods sold	40,817,000	[1]		36,308,000	[2]					(146,000)
Payable amount on performance of common stock issued in private placement							5,000,000	5,000,000
Additional paid-in capital	440,144,000	[1]		438,858,000	[2]	4,862,000								4,862,000	4,862,000
Other noncurrent liabilities	$ 8,147,000	[1]		$ 1,862,000	[2]					$ (2,400,000)				$ 138,000	$ 138,000

[1] Restated and Revised, see Notes 2 and 7

[2] Revised, see Note 2

[3] Restated and Revised, see Note 2

[4] Restated and Revised, see Note 2