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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Cash flows from operating activities:    
Net loss $ (2,557) $ (2,228)
Adjustments to reconcile net loss to net cash used in operating activities:    
Gain on sale of discontinued operations (4,521)  
Distributions in excess of equity in income from joint ventures 174 125
Depreciation and amortization 517 841
Stock based compensation 609 373
Deferred income taxes   (3,033)
Deferred compensation costs (50) (47)
Provision for bad debts 37 (127)
Loss on liquidation of investment in MIEFE 210  
Gain on disposal of property, plant and equipment 154  
Amortization of debt issuance costs and debt discounts 706 86
Provision for obsolescence of inventory   66
Change in operating assets and liabilities:    
Accounts receivable, net 2,654 750
Inventories 125 (212)
Contract assets 2,885 (787)
Prepaid expenses and other current assets (164) (208)
Accounts payable and accrued liabilities (5,057) 2,915
Contract liabilities 960 1,584
Net cash used in operating activities (3,318) 98
Cash flows from investing activities:    
Purchases of property, plant and equipment and other assets (257) (410)
Net cash proceeds from sale of assets of M&I Electric 10,118  
Redemption of certificates of deposit   457
Net cash provided by investing activities 9,861 47
Cash flows from financing activities:    
Proceeds from sale of common stock, preferred stock, and warrants 10 10
Treasury stocks purchase (49) (53)
Proceeds from long-term notes payable   7,000
Proceeds from short-term notes payable   200
Payments on revolving credit facility   (1,500)
Payments on long-term notes payable (6,500) (4,200)
Payments on short-term notes payable   (500)
Other financing activities, net   (427)
Net cash (used in) provided by financing activities (6,539) 530
Effect of exchange rates on cash (169) (4)
Net increase (decrease) in cash and cash equivalents (165) 671
Cash and cash equivalents, beginning of period 2,289 1,618
Cash and cash equivalents, end of period 2,124 2,289
Supplemental disclosures of cash flow information:    
Interest paid 616 772
Income taxes paid 291 78
Non-cash investing and financing transactions:    
Warrants issued as part of debt refinancing   365
Issuance of shares of common stock on accrued preferred dividends payables $ 300 $ 450