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Receivables and Net Sales (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Receivables and Net Sales
Accounts receivable-trade	$ 18,330,793	$ 15,997,576
Less allowance for doubtful receivables	(494,891)	(378,859)
Receivables, net	17,835,902	15,618,717
Provision for doubtful accounts	$ 112,917	$ 55,209
Segment's total sales | Sales risk | Component Products
Concentration of risk
Percentage of concentration risk	5.70%
Segment's total sales | Sales risk | Packaging
Concentration of risk
Percentage of concentration risk	8.80%
Total Sales | Sales risk | Component Products
Concentration of risk
Percentage of concentration risk	3.80%
Total Sales | Sales risk | Packaging
Concentration of risk
Percentage of concentration risk	2.90%

X

- Definition

Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business.

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A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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