CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 2,261,000	$ 2,560,000
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation expense	473,000	377,000
Incremental tax benefits from stock options exercised	(1,000)	(2,000)
Depreciation and amortization	962,000	1,077,000
Deferred income tax provision	238,000	1,202,000
Gain on the sale of fixed assets	(5,000)	(4,000)
Foreign currency transaction (gains) losses	(12,000)	4,000
Changes in operating assets and liabilities:
Accounts receivable	(3,313,000)	(845,000)
Inventories	1,852,000	(644,000)
Prepaid income taxes	(695,000)	409,000
Other current and long term assets	(6,000)	(2,000)
Accounts payable	2,899,000	2,957,000
Accrued liabilities and other liabilities	(1,419,000)	(4,434,000)
Net cash provided by operating activities	3,234,000	2,655,000
Cash flows from investing activities:
Capital expenditures	(454,000)	(491,000)
Proceeds from sale of fixed assets	8,000	4,000
Net cash used in investing activities	(446,000)	(487,000)
Cash flows from financing activities:
Revolving credit line borrowings		2,500,000
Revolving credit line payments		(2,500,000)
Payment of dividends on common stock	(1,827,000)	(1,863,000)
Purchases of common stock for treasury	(3,242,000)	(1,020,000)
Proceeds from stock option exercises	23,000	42,000
Incremental tax benefits on stock options exercised	1,000	2,000
Net cash used in financing activities	(5,045,000)	(2,839,000)
Effect of exchange rate changes on cash and cash equivalents	(17,000)	(10,000)
Decrease in cash and cash equivalents	(2,274,000)	(681,000)
Cash and cash equivalents, beginning of period	4,473,000	3,131,000
Cash and cash equivalents, end of period	2,199,000	2,450,000
Supplemental schedule of non-cash investing activities:
Capital expenditures funded by accounts payable	$ 175,000	$ 137,000