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4. Land and Improvements (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Land and improvement inventories    
Unimproved land $ 625,000us-gaap_Land $ 625,000us-gaap_Land
Fully improved land 14,000us-gaap_LandImprovements 14,000us-gaap_LandImprovements
Total $ 639,000us-gaap_LandAndLandImprovements $ 639,000us-gaap_LandAndLandImprovements