10. Income Taxes (Details 1) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Deferred tax asset:
Net operating loss carryover	$ 26,342,000	$ 23,127,000
Adjustments to reduce land to net realizable value	12,000	12,000
Expenses capitalized under IRC 263(a)	56,000	56,000
Environmental liability	9,000	24,000
Valuation allowance	(26,247,000)	(23,047,000)
Total tax asset	172,000	172,000
Deferred tax liability:
Basis difference of land and improvement inventories	$ 172,000	$ 172,000
Net deferred tax asset