Debt (Details) (USD $)	1 Months Ended		3 Months Ended			6 Months Ended
	May 30, 2012	Apr. 30, 2012	Jun. 30, 2012	Mar. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Nov. 26, 2009
Debt (Textual) [Abstract]
Revolving line of credit						$ 20,000,000
Letters of credit sublimit included in line of credit						10,000,000
Termination date of line of credit						Apr. 01, 2013
Financial covenants which require compliance						Mar. 31, 2013
Maximum capital expenditures financial covenant						2,500,000
The minimum Fixed Charge Coverage Ratio						1.25%
The maximum funded debt to EBITDA covenant						3.00%
Excess in aggregate indebtedness						100,000
Borrowing base limitation			9,500,000			9,500,000
Interest rate for borrowing at LIBOR rate						3.50%
Outstanding trade letters of credit			2,400,000			2,400,000
Principal amount of subordinated convertible promissory notes									10,800,000
Convertible promissory notes issued to Chairman, director and Secretary									2,200,000
Convertible promissory notes issued to a company director									150,000
Convertible promissory notes issued to Secretary									800,000
Convertible promissory notes issued to Harvey Sandler Revocable Trust									800,000
Percentage of outstanding common stock with Harvey Sandler Revocable Trust						10.00%
Interest accrues under the Investor Notes at the annual rate			6.00%			6.00%
Interest paid on the investor notes			138,000		159,000	281,000	316,000
Proceeds of the Investor Notes to repay all previously existing subordinated debt						4,500,000
Accruing interest at rates, minimum						11.00%
Accruing interest at rates, maximum						12.00%
Fees paid for the issuance of this debt						320,000
Conversion price of Investors Notes to Shares			$ 4.00			$ 4.00
Expected conversion price of Investor Notes after three years and five consecutive days			$ 8.00			$ 8.00
Outstanding balance of the Investor Notes			9,200,000			9,200,000		9,600,000
Investor Notes was converted to shares, amount	$ 140,000	$ 100,000		$ 200,000		$ 440,000	$ 200,000
Investor Notes was converted to shares	35,000	25,000		50,000