CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash Flows from Operating Activities:
Net (loss) income	$ (26,000)	$ 65,000
Non-cash charges:
Depreciation and amortization	389,000	335,000
Amortization of other intangible assets	172,000	179,000
Amortization of debt issue costs	15,000	23,000
Amortization of consideration payable to customer	67,000	0
Recovery of losses on accounts receivable - net	(69,000)	(1,000)
Stock-based compensation	29,000	60,000
Loss on sale of fixed assets	6,000	1,000
Restricted stock-based compensation	13,000	7,000
Deferred income taxes	(25,000)	21,000
Fair value increase in contingent consideration	0	29,000
Changes in operating assets and liabilities:
Accounts receivable	654,000	(603,000)
Inventories	(88,000)	961,000
Prepaid expenses and other current assets	(207,000)	(200,000)
Other assets	81,000	0
Accounts payable	(48,000)	287,000
Accrued compensation and benefits	(1,282,000)	(985,000)
Accrued other liabilities and other current liabilities	(133,000)	(328,000)
Other liabilities	(38,000)	(5,000)
Total adjustments	(464,000)	(219,000)
Net cash used in operating activities	(490,000)	(154,000)
Cash Flows from Investing Activities:
Capital expenditures	(485,000)	(570,000)
Proceeds from disposal of assets	11,000	10,000
Net cash used in investing activities	(474,000)	(560,000)
Cash Flows from Financing Activities:
Dividend payments	(158,000)	(180,000)
Proceeds from exercise of stock options	0	105,000
Purchase of Class A common stock	(3,202,000)	(82,000)
Net proceeds from short-term borrowings	4,258,000	1,313,000
Bank finance costs	(20,000)	0
Repayments of loan term debt	(20,000)	0
Net cash provided by financing activities	858,000	1,156,000
Effect of exchange rate changes on cash	5,000	21,000
Net (decrease) increase in cash	(101,000)	463,000
Cash at beginning of period	999,000	1,241,000
Cash at end of period	898,000	1,704,000
Supplemental disclosures of cash flow information:
Cash paid for: Interest	37,000	16,000
Cash paid for: Income taxes	0	2,000
Cash paid for amounts included in the measurement of operating lease liabilities	4,000	0
Noncash information:
Right of Use ("ROU") assets recognized for new operating lease liabilities	80,000	0
Operating lease liability related to ROU asset recognized upon adoption of ASC 842	$ 577,000	$ 0