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17. Parent Company Financial Statements (Details 2) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Adjustments to reconcile net income (loss) to net cash used in operating activities:    
Stock-based compensation $ 938 $ 624
Changes in assets and liabilities:    
Prepaid expenses (1,109) 311
Accounts payable 2,020 (879)
Accrued interest expense 9,800 3,124
Net cash used in operating activities (786) 20,592
Financing activities:    
Issuance of common stock for services, option and warrant exercises 23 5
Net cash provided by financing activities 816 (23,226)
Net increase (decrease) in cash and cash equivalents (49) (4,594)
Cash and cash equivalents at beginning of period 332 4,926
Cash and cash equivalents at end of period 283 332
Supplemental disclosures of cash flow information, cash paid:    
Income tax expense 6 6
Supplemental disclosures of cash flow information, non-cash transactions:    
Proceeds from exercise of stock options applied to accounts payable 21 16
Issuance of warrants to subordinated debt holders $ 1,087 1,301
Exercise of conversion feature on note to equity 47
Parent Company Financial Statements    
Operating activities:    
Net income (loss) $ (27,138) 7,133
Adjustments to reconcile net income (loss) to net cash used in operating activities:    
Stock-based compensation 938 624
Stock issued in connection with consultant services 204 645
Change in fair value of warrant liability (54) 48
Changes in assets and liabilities:    
Subsidiary portion of net (gains) losses 22,669 (11,123)
Prepaid expenses 294 (539)
Accounts payable (103) (512)
Accrued interest expense 197 0
Other liabilities 120 (629)
Other assets (31) 0
Net cash used in operating activities (2,904) (4,353)
Investing activities:    
Change in outstanding checks in excess of cash 0 0
Subsidiary advances, net 2,816 4,399
Net cash provided by investing activities 2,816 4,399
Financing activities:    
Issuance of common stock for services, option and warrant exercises 23 5
Net cash provided by financing activities 23 5
Net increase (decrease) in cash and cash equivalents (65) 51
Cash and cash equivalents at beginning of period 65 14
Cash and cash equivalents at end of period 0 65
Supplemental disclosures of cash flow information, cash paid:    
Interest payments 6,824 6,824
Income tax expense 6 6
Supplemental disclosures of cash flow information, non-cash transactions:    
Proceeds from exercise of stock options applied to accounts payable 0 16
Issuance of warrants to subordinated debt holders 1,087 1,301
Stock issued in connection with services and for interest on debt 229 0
Repurchase of common stock on revolver loan advance 7,479 0
Exercise of conversion feature on note to equity $ 0 $ 47