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INCOME TAXES (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Components of income tax expense |  |
Current taxes - Federal | $ 384,000 | $ 273,000
Current taxes - State | (15,000) | (13,000)
Current taxes - Foreign | 25,000 | 23,000
Deferred taxes - Federal | (109,000) | 223,000
Deferred taxes - State | 13,000 | 55,000
Income tax expense | 298,000 | 561,000
Reconciliation of federal income taxes and reported income taxes |  |
Statutory federal tax provision | 315,000 | 595,000
State income taxes | 28,000 | 52,000
Effect of foreign operations | (11,000) | (6,000)
Income tax credits | (14,000) | (66,000)
Permanent differences | 24,000 | 1,000
Other | (44,000) | (15,000)
Income tax expense | 298,000 | 561,000
Income from operations before income taxes |  |
Domestic | 770,440 | 1,666,281
Foreign | 156,998 | 84,649
Income Before Income Taxes | 927,438 | 1,750,930
Components of deferred tax assets (liabilities) |  |
Allowance for uncollectable accounts | 57,000 | 45,000
Inventories reserve | 537,000 | 408,000
Accrued vacation | 353,000 | 352,000
Non-compete amortization | 335,000 | 390,000
Stock-based compensation | 68,000 | 69,000
State Tax NOL | 139,000 | 157,000
Other | 175,000 | 236,000
Deferred tax assets | 1,664,000 | 1,657,000
Prepaid expenses | (192,000) | (200,000)
Property and equipment | (842,000) | (923,000)
Deferred tax liabilities | (1,034,000) | (1,123,000)
Net deferred tax assets | 630,000 | 534,000
Net current deferred tax assets | 857,000 | 805,000
Net non-current deferred tax liabilities | (227,000) | (271,000)
Changes in total gross unrecognized tax benefit liabilities, excluding accrued interest |  |
Balance at the beginning of the period | 118,000 | 114,000
Additions | 22,000 | 100,000
Reductions |  | (96,000)
Balance at the end of the period | $ 140,000 | $ 118,000

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- Definition The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted federal tax law to the domestic taxable Income or Loss from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 289 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Current Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6509736 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.7) -URI http://asc.fasb.org/extlink&oid=6889476&loc=d3e330036-122817 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Paragraph Question 1-7 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -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. Reference 7: 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.(h)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 + Details
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