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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Operating activities:    
Net income (loss) $ 1,317,000 $ (1,179,000)
Adjustments to reconcile net income (loss) to net cash from operating activities:    
Depreciation and amortization 4,929,000 4,659,000
Loss on write down of investment in equity securities 0 2,114,000
Loss on early extinguishment of debt 108,000 0
Deferred income tax 378,000 108,000
Stock based compensation expense 161,000 152,000
Other non-cash items 4,000 (43,000)
Changes in operating assets and liabilities:    
Receivables (1,281,000) (259,000)
Prepaid expenses and other assets (226,000) 113,000
Customer deposits/deferred revenue (186,000) (43,000)
Accounts payable and accrued liabilities 490,000 535,000
Net cash from operating activities 5,694,000 6,157,000
Investing activities:    
Payment for purchase of property and equipment (1,050,000) (1,517,000)
Investment in equity securities 0 (10,000)
Net cash (used in) investing activities (1,050,000) (1,527,000)
Financing activities:    
Principal payments on long-term debt (2,383,000) (1,417,000)
Principal payments on capital leases (3,054,000) (2,983,000)
Proceeds from long-term debt financing of property and equipment 0 1,036,000
Proceeds from certificate of deposit 0 9,000,000
Payments on line of credit 0 (8,780,000)
Capital contributions from non-controlling interests 7,000 27,000
Distributions to non-controlling interests (514,000) (388,000)
Reclassification of restricted cash (200,000) 0
Proceeds from capital lease financing for reimbursement of payments for acquisition of equipment 1,137,000 0
Net cash (used in) financing activities (5,007,000) (3,505,000)
Net change in cash and cash equivalents (363,000) 1,125,000
Cash and cash equivalents at beginning of period 2,209,000 1,059,000
Cash and cash equivalents at end of period 1,846,000 2,184,000
Supplemental cash flow disclosure:    
Interest 1,614,000 1,251,000
Income taxes paid 219,000 1,000
Schedule of non-cash investing and financing activities    
Acquisition of equipment with capital lease financing $ 8,332,000 $ 1,343,000