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LIABILITIES AND LONG-TERM DEBT (Details) (USD $)
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6 Months Ended | 6 Months Ended | 6 Months Ended | 6 Months Ended | ||||||||
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Jun. 30, 2012
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Dec. 31, 2011
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Jun. 30, 2012
Domestic Bank [Member]
Revolving Loan [Member]
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Dec. 31, 2011
Domestic Bank [Member]
Revolving Loan [Member]
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May 31, 2006
Domestic Bank [Member]
Revolving Loan [Member]
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Jun. 30, 2012
Term loan [Member]
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Dec. 31, 2011
Term loan [Member]
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Nov. 30, 2008
Term loan [Member]
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Sep. 30, 2007
Term loan [Member]
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Jun. 30, 2012
Notes Payable [Member]
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Dec. 31, 2011
Notes Payable [Member]
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Nov. 30, 2010
Notes Payable [Member]
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| Debt Instrument [Line Items] | ||||||||||||
| Initial face amount of loan | $ 10,000,000 | |||||||||||
| Face amount | 14,000,000 | |||||||||||
| Maturity date | Oct. 31, 2018 | |||||||||||
| Short-term amount outstanding | 1,500,000 | 1,500,000 | 1,400,000 | 1,400,000 | 100,000 | 100,000 | ||||||
| Long-term amount outstanding | 20,039,000 | 22,739,000 | 14,489,488 | 12,489,488 | 7,450,000 | 8,150,000 | 100,000 | 100,000 | ||||
| Interest rate on loan (in hundredths) | 2.50% | 2.75% | 4.00% | |||||||||
| Principal payments | 350,000 | 100,000 | ||||||||||
| Original maximum borrowing capacity | 12,000,000 | |||||||||||
| Maximum borrowing capacity | 18,000,000 | |||||||||||
| Expiration date | Jun. 30, 2015 | |||||||||||
| Credit agreement sub limit available to support hedging program | 3,000,000 | |||||||||||
| Interest rate (in hundredths) | 2.50% | 2.75% | ||||||||||
| Quarterly commitment fee on the unused portion of loan (in hundredths) | 0.25% | |||||||||||
| Available remaining borrowing capacity | 5,500,000 | |||||||||||
| Notes issued on acquisition | $ 300,000 | |||||||||||
| Supplier term of agreement | 7 years | |||||||||||
| Supplier term of agreement, elapsed | 5 years |