Debt (Detail) (USD $)	3 Months Ended				0 Months Ended				0 Months Ended	3 Months Ended					1 Months Ended				3 Months Ended
	Mar. 31, 2013	Jun. 30, 2013 Subsequent Event [Member] Scenario, Previously Reported [Member] 6% Shareholder Note Due 2013 [Member]	Jun. 30, 2013 Subsequent Event [Member] Scenario, Previously Reported [Member] 8% Shareholder Note Due 2015 [Member]	Mar. 31, 2013 Scenario, Previously Reported [Member] 6% Shareholder Note Due 2013 [Member]	Apr. 08, 2011 8% Subordinated Convertible Shareholder Notes Due 2016 [Member] Maximum [Member]	May 06, 2011 8% Subordinated Convertible Shareholder Notes Due 2016 [Member]	Apr. 08, 2011 8% Subordinated Convertible Shareholder Notes Due 2016 [Member]	Mar. 31, 2013 Maximum [Member] Line Of Credit With FGI Amended [Member]	Oct. 22, 2010 Applied Utility Systems [Member] Consideration Payable And Settlement Obligation [Member]	Mar. 31, 2013 Applied Utility Systems [Member] Consideration Payable And Settlement Obligation [Member]	Mar. 31, 2013 6% Shareholder Note Due 2013 [Member]	Jan. 30, 2013 6% Shareholder Note Due 2013 [Member]	Mar. 31, 2013 8% Shareholder Note Due 2015 [Member]	Jul. 27, 2012 8% Shareholder Note Due 2015 [Member]	Jul. 27, 2012 8% Subordinated Convertible Shareholder Notes Due 2016 [Member]	Feb. 16, 2012 8% Subordinated Convertible Shareholder Notes Due 2016 [Member]	Apr. 11, 2011 8% Subordinated Convertible Shareholder Notes Due 2016 [Member]	Feb. 14, 2011 Line Of Credit With FGI [Member]	Mar. 31, 2013 Line Of Credit With FGI Amended [Member]
Line Of Credit Facility, Maximum Borrowing Capacity Against Inventory Collateral Percentage Of Purchased Receivables	7.50%																	7.50%	50.00%
Line of Credit Facility Purchase Receivables Selected by Borrower								80.00%
Line of Credit Facility Purchased Receivable Reserved by Borrowee																			20.00%
Line of Credit Facility Advance Amount In Percentage of Purchased Accounts Receivable Value	80.00%
Line of Credit Facility, Maximum Borrowing Capacity Against Inventory Collateral (in Dollars)																			$ 2,000,000
Line of Credit Facility, Interest Rate Description																			2.50%
Line of Credit Facility Amount Outstanding Standby Fees Determination Threshold (in Dollars)	2,400,000
Line of Credit Facility, Termination Fee Percentage																			2.00%
Reserve Percent for Accounts																			40.00%
Pledged Assets Accounts Receivable Pledged as Collateral Gross Value (in Dollars)																			5,200,000
BorrowingsOutstandingAmountAgainstPledgedAccountsReceivable (in Dollars)																			3,100,000
BorrowingsOutstandingAmountAgainstPlegedInventory (in Dollars)																			2,000,000
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars)	7,500,000
Due to Seller Amount Paid as Consideration (in Dollars)									1,500,000
Due to Seller Additional Amount Paid During the Period (in Dollars)										200,000
Debt Instrument, Interest Rate, Stated Percentage		6.00%	8.00%	6.00%										8.00%			8.00%
Debt Instrument, Payment Premium Converted to Fixed Amount (in Dollars)											250,000	250,000
Debt Instrument, First Payable Amount, Conversion of Debt Premium to Fixed Amount (in Dollars)	100,000											100,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)											25,000		45,000			5,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)											10.40		2.09			3.80
Debt Instrument, Face Amount (in Dollars)						$ 3,000,000								$ 3,000,000
Debt Instrument, Convertible, Conversion Price (in Dollars per share)							$ 7.044								$ 4.00
InitialConversionPricePercentageClosingBidPrice							120.00%
Debt Instrument, Convertible, Number of Equity Instruments					369,853										250,000