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Income Taxes (Details 1) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Deferred tax assets:    
Allowance for doubtful accounts $ 54,352 $ 20,534
Inventory allowances 283,193 255,285
Accrued liabilities 200,395 73,929
Unicap 263A adjustment 186,611 151,625
Net operating loss carryforwards 690,846 602,580
Alternative minimum tax credit carryforwards 398,162 348,867
State investment tax credit carryforward 76,668 34,523
Foreign tax credit carryforward 615,080 615,080
Other foreign tax items 0 600,844
Foreign net operating loss carryforwards 461,965 0
Total deferred tax assets 2,967,272 2,703,267
Deferred tax liabilities:    
Tax over book basis of capital assets (1,354,409) (1,113,335)
Undistributed Earnings from Subsidiaries (211,274) 0
Other foreign tax items (152,705) (207,607)
Net deferred tax assets $ 1,248,884 $ 1,382,325