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Interest Rate Swap (Narrative) (Details) - USD ($) | Aug. 09, 2013 | Aug. 21, 2012 | Dec. 31, 2016 | Dec. 31, 2015 | Jan. 03, 2015
--- | --- | --- | --- | --- | ---
Derivative [Line Items] |  |  |  |  |
Interest rate swap liability |  |  | $ 0 | $ 246,145 |
Term Loan Due August 21, 2022 [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Remaining maturity period of interest rate swap (years) |  | 10 years |  |  |
Color Resources, LLC [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Interest rate swap, notional amount | $ 4,033,250 |  |  |  |
Interest rate swap, fixed interest rate (percent) | 4.83% |  |  |  |
Remaining maturity period of interest rate swap (years) | 10 years |  |  |  |
Palmer of Texas [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Interest rate swap, notional amount |  | $ 22,500,000 |  |  |
Interest rate swap, fixed interest rate (percent) |  | 3.74% |  |  |
Palmer of Texas [Member] | Term Loan [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Interest rate swap asset |  |  | 31,000 |  |
Interest rate swap liability |  |  |  | $ 40,000 |
Fair Value, Inputs, Level 2 [Member] | Color Resources, LLC [Member] | Term Loan [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Interest rate swap liability |  |  | $ 0 |  | $ 206,000

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