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INCOME TAXES - Significant components of deferred tax assets and liabilities (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Deferred tax assets: |  |
Warranty costs | $ 1,211 | $ 895
Sales incentives and discounts | 542 | 942
Stock-based compensation | 938 | 838
Pension | 1,919 | 2,212
All others | 268 | 331
State credits and NOL's | 4,634 | 4,450
Valuation allowance | (4,359) | (4,155)
Total deferred tax assets | 5,153 | 5,513
Deferred tax liabilities: |  |
Depreciation and amortization expense | (880) | (699)
Net deferred tax assets | $ 4,273 | $ 4,814

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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