Income Taxes - Deferred Tax Assets and Liabilities (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Plant, property and equipment	$ 413,160	$ 322,604
Total	413,160	322,604
Asset valuations	543,002	426,429
Contribution carryforward	157,297	296,802
Operating loss carryforwards and credits	2,201,789	2,148,208
Pension	448,579	467,087
Foreign tax credit	43,575	48,847
Other	591,066	418,938
Total	3,985,308	3,806,311
Net deferred income tax asset before valuation allowance	3,572,148	3,483,707
Valuation allowance	(2,201,789)	(2,148,208)
Net deferred income tax asset	$ 1,370,359	$ 1,335,499