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Note 6 - Income Taxes (Detail) - Deferred income taxes (USD $)	Dec. 31, 2012	Dec. 31, 2011
Deferred income taxes current		$ 2,753
Deferred income taxes non-current	(181,818)	(181,818)
Conversion of Investment From Tax Cash Basis to Accrual Basis for Financial Reporting [Member]
Deferred income taxes current		2,753
Deferred income taxes non-current
Unrealized Net Loss (Gain) on Marketable Securities [Member]
Deferred income taxes current
Deferred income taxes non-current
Casualty Loss [Member]
Deferred income taxes current
Deferred income taxes non-current	(121,239)	(121,239)
Deferred Gain [Member]
Deferred income taxes current
Deferred income taxes non-current	$ (60,579)	$ (60,579)

X

- Definition

The current portion as of the balance sheet date of the aggregate carrying amount of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; after the valuation allowance, if any, to reduce such amount to net realizable value. Also includes the aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year or operating cycle, if longer.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	instant

X

- Definition

The noncurrent portion as of the balance sheet date of the aggregate carrying amount of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; after the valuation allowance, if any, to reduce such amount to net realizable value. Also includes the aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant