Note C - Income Taxes: Reconciliation of Book Income (Loss) to Federal Taxable Income (Loss) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Net income (loss)	$ 24,709	$ (6,492)
Depreciation differences	2,529	3,561
Gain (Loss) on Disposition of Property	1,484
Unearned income book tax difference	(29)	(24)
Other book tax differences	(80)	84
Federal taxable income (loss)	$ 28,613	$ (2,871)
Federal taxable income (loss) per limited partnership unit	$ 179.00	$ (28.36)