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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net income | $ 9,845,298 us-gaap_NetIncomeLoss | $ 7,372,756 us-gaap_NetIncomeLoss | $ 8,854,765 us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 6,941,905 us-gaap_DepreciationAmortizationAndAccretionNet | 6,264,246 us-gaap_DepreciationAmortizationAndAccretionNet | 5,897,100 us-gaap_DepreciationAmortizationAndAccretionNet
Deferred income taxes | 989,473 us-gaap_DeferredIncomeTaxesAndTaxCredits | 750,363 us-gaap_DeferredIncomeTaxesAndTaxCredits | 62,948 us-gaap_DeferredIncomeTaxesAndTaxCredits
Loss (gain) on disposal of fixed assets | 138,056 us-gaap_GainLossOnSaleOfPropertyPlantEquipment | 52,293 us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (50,949)us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Gain on acquisition |  | (601,975)us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount |
Stock compensation expense | 307,102 us-gaap_ShareBasedCompensation | 458,800 us-gaap_ShareBasedCompensation | 122,500 us-gaap_ShareBasedCompensation
Change in assets and liabilities: |  |  |
Receivables | (6,888,027)us-gaap_IncreaseDecreaseInReceivables | (3,182,751)us-gaap_IncreaseDecreaseInReceivables | 824,438 us-gaap_IncreaseDecreaseInReceivables
Inventories | (7,065,372)us-gaap_IncreaseDecreaseInInventories | (9,813,065)us-gaap_IncreaseDecreaseInInventories | (2,177,197)us-gaap_IncreaseDecreaseInInventories
Income tax receivable | 242,228 us-gaap_IncreaseDecreaseInIncomeTaxesReceivable | (242,228)us-gaap_IncreaseDecreaseInIncomeTaxesReceivable |
Other current assets | (24,035)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | (319,340)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | 1,598,879 us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Other assets | 109,208 us-gaap_IncreaseDecreaseInOtherOperatingAssets | 68,214 us-gaap_IncreaseDecreaseInOtherOperatingAssets | 146,766 us-gaap_IncreaseDecreaseInOtherOperatingAssets
Accounts payable | 4,004,111 us-gaap_IncreaseDecreaseInAccountsPayable | (4,779,055)us-gaap_IncreaseDecreaseInAccountsPayable | 3,769,551 us-gaap_IncreaseDecreaseInAccountsPayable
Accrued and other liabilities | 4,380,101 us-gaap_IncreaseDecreaseInAccruedLiabilities | 1,518,524 us-gaap_IncreaseDecreaseInAccruedLiabilities | (1,055,248)us-gaap_IncreaseDecreaseInAccruedLiabilities
Net cash provided by (used in) operating activities | 12,980,048 us-gaap_NetCashProvidedByUsedInOperatingActivities | (2,453,218)us-gaap_NetCashProvidedByUsedInOperatingActivities | 17,993,553 us-gaap_NetCashProvidedByUsedInOperatingActivities
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Purchase of fixed assets | (7,442,086)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (7,717,102)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (6,145,390)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Proceeds from sales of fixed assets | 63,012 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment | 47,625 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment | 118,398 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Acquisition of business assets |  | (2,229,000)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired |
Investment in trademarks and patents | (9,446)us-gaap_PaymentsToAcquireIntangibleAssets | (68,452)us-gaap_PaymentsToAcquireIntangibleAssets | (55,613)us-gaap_PaymentsToAcquireIntangibleAssets
Net cash used in investing activities | (7,388,520)us-gaap_NetCashProvidedByUsedInInvestingActivities | (9,966,929)us-gaap_NetCashProvidedByUsedInInvestingActivities | (6,082,605)us-gaap_NetCashProvidedByUsedInInvestingActivities
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from revolving credit facility | 75,190,968 us-gaap_ProceedsFromLinesOfCredit | 78,622,969 us-gaap_ProceedsFromLinesOfCredit | 63,140,815 us-gaap_ProceedsFromLinesOfCredit
Repayments of revolving credit facility | (77,308,793)us-gaap_RepaymentsOfLinesOfCredit | (63,696,111)us-gaap_RepaymentsOfLinesOfCredit | (74,679,475)us-gaap_RepaymentsOfLinesOfCredit
Debt financing costs | (54,647)us-gaap_PaymentsOfFinancingCosts | (58,738)us-gaap_PaymentsOfFinancingCosts |
Dividends paid on common stock | (3,017,979)us-gaap_TaxBenefitFromStockOptionsExercised1 | (2,254,935)us-gaap_TaxBenefitFromStockOptionsExercised1 |
Net cash (used in) provided by financing activities | (5,190,451)us-gaap_NetCashProvidedByUsedInFinancingActivities | 12,613,185 us-gaap_NetCashProvidedByUsedInFinancingActivities | (11,538,660)us-gaap_NetCashProvidedByUsedInFinancingActivities
INCREASE IN CASH AND CASH EQUIVALENTS | 401,077 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 193,038 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 372,288 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
CASH AND CASH EQUIVALENTS: |  |  |
BEGINNING OF PERIOD | 4,215,617 us-gaap_CashAndCashEquivalentsAtCarryingValue | 4,022,579 us-gaap_CashAndCashEquivalentsAtCarryingValue | 3,650,291 us-gaap_CashAndCashEquivalentsAtCarryingValue
END OF PERIOD | $ 4,616,694 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 4,215,617 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 4,022,579 us-gaap_CashAndCashEquivalentsAtCarryingValue

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- Definition The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition Tax benefits realized from the exercise of stock options resulting in reductions in the entity's income taxes, which increases net cash provided by operating activities. + References No definition available. + Details
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