CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
OPERATING ACTIVITIES
Net income	$ 1,489,000	$ 806,000	$ 466,000
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	6,272,000	6,001,000	6,492,000
Loss (gain) on disposal of assets	(72,000)	0	1,000
Deferred income tax	76,000	168,000	409,000
Stock-based compensation expense	125,000	110,000	135,000
Changes in operating assets and liabilities:
Receivables	(961,000)	76,000	573,000
Prepaid expenses and other assets	(1,063,000)	(76,000)	(110,000)
Accounts payable and accrued liabilities	957,000	99,000	(262,000)
Net cash from operating activities	6,823,000	7,184,000	7,704,000
INVESTING ACTIVITIES
Payment for purchase of property and equipment	(5,613,000)	(315,000)	(1,145,000)
Investment in certificate of deposit	0	0	(9,000,000)
Investment in subsidiaries by non-controlling interests	1,509,000
Investment in convertible preferred stock	(39,000)	0	0
Net cash from investing activities	(4,143,000)	(315,000)	(10,145,000)
FINANCING ACTIVITIES
Principal payments on long-term debt	(3,889,000)	(5,381,000)	(6,808,000)
Principal payments on capital leases	(2,983,000)	(2,784,000)	(1,631,000)
Long term debt financing on property and equipment	6,980,000	928,000	811,000
Proceeds from capital lease financing on property and equipment	0	1,000,000	0
Advances on line of credit	350,000	600,000	2,100,000
Payments on line of credit	(1,000,000)	0	(700,000)
Distributions to non-controlling interests	(996,000)	(627,000)	(513,000)
Stock repurchase	0	0	(271,000)
Net cash from financing activities	(1,538,000)	(6,264,000)	(7,012,000)
Net change in cash and cash equivalents	1,142,000	605,000	(9,453,000)
CASH AND CASH EQUIVALENTS, beginning of year	1,438,000	833,000	10,286,000
CASH AND CASH EQUIVALENTS, end of year	2,580,000	1,438,000	833,000
SUPPLEMENTAL CASH FLOW DISCLOSURE
Cash paid for interest	2,503,000	2,446,000	2,352,000
Cash paid for income taxes	90,000	88,000	31,000
SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Acquisition of equipment with capital lease financing	$ 6,400,000	$ 9,706,000	$ 4,716,000