Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating activities:
Net income (loss)	$ 308,000	$ (17,000)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	51,000	63,000
Software amortization	150,000	111,000
Stock-based compensation	50,000	85,000
Loss on disposal of assets	0	1,000
Changes in operating assets and liabilities:
Accounts receivable, net	413,000	583,000
Inventories	81,000	(53,000)
Prepaid expenses and other current assets	57,000	(69,000)
Accounts payable	(626,000)	24,000
Accrued expenses and other current liabilities	(300,000)	(472,000)
Net cash provided by operating activities	184,000	256,000
Investing activities:
Capitalized software development costs	(419,000)	(66,000)
Purchases of property and equipment	(75,000)	(47,000)
Net cash used for investing activities	(494,000)	(113,000)
Financing activities:
Stock for tax withholding	(12,000)	(10,000)
Proceeds from stock options exercised	4,000	0
Net cash used for financing activities	(8,000)	(10,000)
Effect of exchange rate changes on cash	30,000	(1,000)
Increase in cash and cash equivalents	(288,000)	132,000
Cash and cash equivalents at beginning of period	4,236,000	3,190,000
Cash and cash equivalents at end of period	3,948,000	3,322,000
Non-Cash investing and financing activities:
Purchase of property and equipment in accounts payable	$ 9,000	$ 25,000