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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Cash Flows From Operating Activities    
Net income (loss) $ 484,638 $ (1,227,315)
Loss from discontinued operations, net of tax 0 (164)
Loss from continuing operations, net of tax 484,638 (1,227,151)
Adjustments to reconcile income (loss) from continuing operations to net cash used in operating activities of continuing operations:    
Depreciation and amortization 177,776 209,400
Stock based compensation to employees, officers and directors 10,688 38,322
Changes in operating assets and liabilities:    
Trade recivables, net (177,581) 33,462
Inventories 204,596 (72,208)
Prepaid expenses (262,895) (50,665)
Other assets 30,526 86,871
Accounts payable and accrued expenses (1,110,251) 705,449
Customer deposits and other liabilities (203,617) (237,905)
Net cash used in operating activities of continuing operations (846,120) (514,425)
Cash Flows From Investing Activities:    
Purchase of property and equipment (94,521) (99,045)
Net cash used in investing activities of continuing operations (94,521) (99,045)
Cash Flows From Financing Activities:    
Repayment of debt 0 (68,857)
Payments on capital lease obligations (4,357) (5,971)
Net cash used in financing activities of continuing operations (4,357) (74,828)
Cash Flows from Discontinued Operations:    
Net cash used in operating activities of discontinued operations 0 (164)
Net change in cash and cash equivalents (944,998) (688,462)
Cash and cash equivalents, beginning of period 1,412,082 1,752,711
Cash and cash equivalents, end of period 467,084 1,064,249
Supplemental Disclosures:    
Cash paid during the period for: Interest $ 99,205 $ 103,514