Restatement (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenue
Operating Revenues	$ 8,354	$ 7,960	$ 15,133	$ 14,978
Other income	17	93	17	119
Total revenues	8,354		15,133
Operating Expenses:
Maintenance of Way	(1,241)	182	200	2,017
Maintenance of Equipment	945	993	1,841	2,023
Transportation	2,557	2,753	5,106	5,384
General and Administrative	1,141	1,323	2,362	2,636
Depreciation	834	788	1,662	1,575
Taxes, other than income taxes	841	565	1,514	1,148
Car Hire, net	257	365	492	590
Employee retirement plans	54	65	108	123
Track usage	(134)	183	114	386
Total Operating Expenses	5,254	7,217	13,399	15,882
Operating Income (Loss) before Interest and Income Taxes	3,100	743	1,734	(904)
Other income	23	97	26	126
Interest Expense	(53)	(7)	(106)	(15)
Income (Loss) from operations before Income Taxes	3,070	833	1,654	(793)
Income Tax Provision (Benefit)	(29)	5	(545)	465
Net Income (Loss)	3,099	828	2,199	(1,258)
Previously Reported [Member]
Revenue
Operating Revenues	8,214		14,873
Other income	3,316		3,439
Total revenues	11,530		18,312
Operating Expenses:
Maintenance of Way	1,765		3,206
Maintenance of Equipment	945		1,841
Transportation	2,557		5,106
General and Administrative	1,141		2,362
Depreciation	834		1,662
Taxes, other than income taxes	841		1,514
Car Hire, net	257		492
Employee retirement plans	54		108
Track usage	13		261
Total Operating Expenses	8,407		16,552
Operating Income (Loss) before Interest and Income Taxes	3,123		1,760
Interest Expense	53		106
Income (Loss) from operations before Income Taxes	3,070		1,654
Income Tax Provision (Benefit)	(29)		(545)
Net Income (Loss)	3,099		2,199
Adjustments [Member]
Revenue
Operating Revenues	140		260
Other income	(3,316)		(3,439)
Total revenues	(3,176)		(3,179)
Operating Expenses:
Maintenance of Way	(3,006)		(3,006)
Track usage	(147)		(147)
Total Operating Expenses	(3,153)		(3,153)
Operating Income (Loss) before Interest and Income Taxes	(23)		(26)
Other income	$ 23		$ 26