CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash Flows from Operating Activities:
Net income	$ 5,662,000	$ 370,000
Non-cash charges:
Depreciation and amortization	774,000	660,000
Amortization of other intangible assets	344,000	359,000
Amortization of debt issue costs	17,000	50,000
Amortization of consideration payable to a customer	135,000	0
(Recovery of) provision for losses on accounts receivable - net	(61,000)	95,000
Stock-based compensation	62,000	120,000
Loss on sale of fixed assets	5,000	0
Gain on sale of property and equipment	(7,817,000)	(6,000)
Restricted stock-based compensation	26,000	18,000
Deferred income taxes	364,000	99,000
Fair value increase in contingent consideration	0	57,000
Changes in operating assets and liabilities:
Accounts receivable	48,000	(250,000)
Inventories	(1,255,000)	(1,332,000)
Prepaid expenses and other current assets	(214,000)	(267,000)
Other assets	(136,000)	0
Accounts payable	149,000	1,866,000
Accrued compensation and benefits	(1,040,000)	(603,000)
Accrued other liabilities	1,751,000	(397,000)
Other liabilities	(76,000)	(10,000)
Total adjustments	(6,652,000)	459,000
Net cash (used in) provided by operating activities	(990,000)	829,000
Cash Flows from Investing Activities:
Capital expenditures	(920,000)	(1,224,000)
Proceeds from disposal of property and equipment	8,760,000	25,000
Net cash provided by (used in) investing activities	7,840,000	(1,199,000)
Cash Flows from Financing Activities:
Dividend payments	(317,000)	(359,000)
Proceeds from exercise of stock options	0	737,000
Purchase of Class A common stock	(3,467,000)	(430,000)
Proceeds from notes payable		400,000
Net (payment) proceeds from short-term borrowings	(1,915,000)	311,000
Repayments of long-term debt	(453,000)	(7,000)
Bank finance costs	(25,000)	(15,000)
Net cash (used in) provided by financing activities	(6,177,000)	637,000
Effect of exchange rate changes on cash		(20,000)
Net increase in cash	673,000	247,000
Cash at beginning of period	999,000	1,241,000
Cash at end of period	1,672,000	1,488,000
Supplemental disclosures of cash flow information:
Cash paid for: Interest	112,000	44,000
Cash paid for: Income taxes	0	21,000
Cash paid for amounts included in the measurement of operating lease liabilities	21,000	0
Noncash information:
Right of Use ("ROU") assets recognized for new operating lease liabilities	2,074,000	0
Operating lease liability related to ROU assets recognized upon adoption of ASC 842	$ 2,319,000	$ 0