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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Cash flows related to operating activities:    
Net Income $ 331 $ 26
Adjustments to reconcile net income to net cash (used) provided by operating activities:    
Depreciation and amortization 244 210
Loss on disposal of property 1 14
Stock based compensation   53
Increase in inventory reserve 21 13
Increase in allowance for doubtful accounts   1
Increase in warranty reserve 112  
Change in assets and liabilities:    
Accounts receivable (706) 531
Inventories (350) (43)
Prepaid income taxes   (25)
Other current assets (170) (278)
Other non-current assets 4 (3)
Accounts payable 648 (534)
Accrued employee compensation and benefit costs (250) 162
Accrued income taxes 64  
Other accrued liabilities (62) (69)
Net cash (used) provided by operating activities (113) 58
Cash flows related to investing activities:    
Capital expenditures - property, plant and equipment (511) (183)
Proceeds from sale of assets   180
Net cash used in investing activities (511) (3)
Cash flows related to financing activities:    
Proceeds from lease line of credit 92  
Principal payments on long-term debt (137) (158)
Principal payments on equipment financing obligations (35)  
Purchase of treasury shares (117) (160)
Net cash used in financing activities (197) (318)
Net decrease in cash and cash equivalents (821) (263)
Cash and cash equivalents at beginning of period 4,707 3,515
Cash and cash equivalents at end of period $ 3,886 $ 3,252