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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Cash flows related to operating activities:    
Net Income $ 98 $ 331
Adjustments to reconcile net income to net cash provided (used) by operating activities:    
Depreciation and amortization 274 244
Loss on disposal of property   1
Stock based compensation 58  
(Decrease) increase in inventory reserve (78) 21
Increase in allowance for doubtful accounts 10  
Increase in warranty reserve 39 112
Change in assets and liabilities:    
Accounts receivable (298) (706)
Inventories (437) (350)
Prepaid income taxes (17)  
Other current assets (162) (170)
Other non-current assets (62) 4
Accounts payable 933 648
Accrued employee compensation and benefit costs 27 (250)
Accrued income taxes   64
Other accrued liabilities 120 (62)
Net cash provided (used) by operating activities 505 (113)
Cash flows related to investing activities:    
Capital expenditures - property, plant and equipment (642) (511)
Net cash used in investing activities (642) (511)
Cash flows related to financing activities:    
Proceeds from lease line of credit   92
Principal payments on long-term debt (136) (137)
Principal payments on equipment financing obligations (45) (35)
Purchase of treasury shares (128) (117)
Net cash used in financing activities (309) (197)
Net decrease in cash and cash equivalents (446) (821)
Cash and cash equivalents at beginning of period 2,598 4,707
Cash and cash equivalents at end of period $ 2,152 $ 3,886